Graphics | Android Open Source Project

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gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl/binder-ipc" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl/binder-ipc" ><span class="devsite-nav-text" tooltip>Use Binder IPC</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl/memoryblock" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl/memoryblock" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl/memoryblock" ><span class="devsite-nav-text" tooltip>Use MemoryBlock</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl/network-stack" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl/network-stack" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl/network-stack" ><span class="devsite-nav-text" tooltip>Network stack configuration tools</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl/threading" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl/threading" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl/threading" ><span class="devsite-nav-text" tooltip>Model threading</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl/converting" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl/converting" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl/converting" ><span class="devsite-nav-text" tooltip>Convert HAL modules</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl/types" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl/types" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl/types" ><span class="devsite-nav-text" tooltip>Data types</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl/safe_union" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl/safe_union" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl/safe_union" ><span class="devsite-nav-text" tooltip>Safe union</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl/versioning" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl/versioning" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl/versioning" ><span class="devsite-nav-text" tooltip>Interface versioning</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl/code-style" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl/code-style" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl/code-style" ><span class="devsite-nav-text" tooltip>Code style guide</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>HIDL C++</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl-cpp" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl-cpp" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl-cpp" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl-cpp/packages" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl-cpp/packages" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl-cpp/packages" ><span class="devsite-nav-text" tooltip>Packages</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl-cpp/interfaces" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl-cpp/interfaces" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl-cpp/interfaces" ><span class="devsite-nav-text" tooltip>Interfaces</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl-cpp/types" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl-cpp/types" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl-cpp/types" ><span class="devsite-nav-text" tooltip>Data types</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl-cpp/functions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl-cpp/functions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl-cpp/functions" ><span class="devsite-nav-text" tooltip>Functions</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>HIDL Java</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl-java" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl-java" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl-java" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl-java/types" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl-java/types" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl-java/types" ><span class="devsite-nav-text" tooltip>Data types</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl-java/interfaces" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl-java/interfaces" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl-java/interfaces" ><span class="devsite-nav-text" tooltip>Interface methods and errors</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hidl-java/constants" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hidl-java/constants" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hidl-java/constants" ><span class="devsite-nav-text" tooltip>Export constants</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Other</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hal/framework-testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hal/framework-testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hal/framework-testing" ><span class="devsite-nav-text" tooltip>HIDL framework backward compatibility verification</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hal/dynamic-lifecycle" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hal/dynamic-lifecycle" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hal/dynamic-lifecycle" ><span class="devsite-nav-text" tooltip>Dynamically available HALs</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/architecture/hal/archive" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/hal/archive" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/hal/archive" ><span class="devsite-nav-text" tooltip>Legacy HALs (AOSP <=v7)</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Kernel</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/releases" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/releases" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/releases" ><span class="devsite-nav-text" tooltip>Stable kernel releases and updates</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/android-common" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/android-common" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/android-common" ><span class="devsite-nav-text" tooltip>Android common kernels</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/generic-kernel-image" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/generic-kernel-image" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/generic-kernel-image" ><span class="devsite-nav-text" tooltip>GKI project</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-dev" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-dev" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-dev" ><span class="devsite-nav-text" tooltip>GKI development</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-versioning" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-versioning" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-versioning" ><span class="devsite-nav-text" tooltip>GKI versioning scheme</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>GKI release builds</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-release-builds" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-release-builds" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-release-builds" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-android12-5_10-release-builds" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-android12-5_10-release-builds" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-android12-5_10-release-builds" ><span class="devsite-nav-text" tooltip>android12-5.10 release builds</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-android13-5_10-release-builds" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-android13-5_10-release-builds" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-android13-5_10-release-builds" ><span class="devsite-nav-text" tooltip>android13-5.10 release builds</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-android13-5_15-release-builds" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-android13-5_15-release-builds" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-android13-5_15-release-builds" ><span class="devsite-nav-text" tooltip>android13-5.15 release builds</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-android14-5_15-release-builds" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-android14-5_15-release-builds" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-android14-5_15-release-builds" ><span class="devsite-nav-text" tooltip>android14-5.15 release builds</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-android14-6_1-release-builds" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-android14-6_1-release-builds" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-android14-6_1-release-builds" ><span class="devsite-nav-text" tooltip>android14-6.1 release builds</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/architecture/kernel/gki-android15-6_6-release-builds" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-android15-6_6-release-builds" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-android15-6_6-release-builds" ><span class="devsite-nav-text" tooltip>android15-6.6 Releases</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-releases" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-releases" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-releases" ><span class="devsite-nav-text" tooltip>GKI release process</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/android16-6.12-errata" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/android16-6.12-errata" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/android16-6.12-errata" ><span class="devsite-nav-text" tooltip>GKI 16-6.12 android-mainline errata</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/stable-kmi" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/stable-kmi" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/stable-kmi" ><span class="devsite-nav-text" tooltip>Maintain a stable KMI</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Kernel ABI monitoring</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/abi-monitor" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/abi-monitor" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/abi-monitor" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/howto-abi-monitor" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/howto-abi-monitor" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/howto-abi-monitor" ><span class="devsite-nav-text" tooltip>Run ABI monitoring</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/howto-symbol-lists" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/howto-symbol-lists" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/howto-symbol-lists" ><span class="devsite-nav-text" tooltip>Work with symbol lists</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Modules</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/modules" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/modules" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/modules" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/convert-or-add" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/convert-or-add" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/convert-or-add" ><span class="devsite-nav-text" tooltip>Configure kernel features as GKI modules</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/vendor-module-guidelines" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/vendor-module-guidelines" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/vendor-module-guidelines" ><span class="devsite-nav-text" tooltip>Vendor module guidelines</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/loadable-kernel-modules" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/loadable-kernel-modules" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/loadable-kernel-modules" ><span class="devsite-nav-text" tooltip>Loadable kernel modules</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/kernel-module-support" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/kernel-module-support" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/kernel-module-support" ><span class="devsite-nav-text" tooltip>Kernel module support</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/test-kernel" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/test-kernel" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/test-kernel" ><span class="devsite-nav-text" tooltip>Test GKI modules</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/boot-time-opt" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/boot-time-opt" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/boot-time-opt" ><span class="devsite-nav-text" tooltip>Boot time optimization</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/debugging-with-gki" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/debugging-with-gki" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/debugging-with-gki" ><span class="devsite-nav-text" tooltip>Debug features</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/kernel-code" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/kernel-code" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/kernel-code" ><span class="devsite-nav-text" tooltip>Develop kernel code for GKI</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/android-kernel-file-system-support" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/android-kernel-file-system-support" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/android-kernel-file-system-support" ><span class="devsite-nav-text" tooltip>Android kernel file system support</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/bpf" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/bpf" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/bpf" ><span class="devsite-nav-text" tooltip>Extend the kernel with eBPF</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/using-debugfs-12" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/using-debugfs-12" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/using-debugfs-12" ><span class="devsite-nav-text" tooltip>Use DebugFS in Android 12</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-fips140-module" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-fips140-module" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-fips140-module" ><span class="devsite-nav-text" tooltip>FIPS 140-3 certifiable GKI crypto module</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-faq" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-faq" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-faq" ><span class="devsite-nav-text" tooltip>Android kernel FAQ</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>GKI 1.0</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki1-overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki1-overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki1-overview" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/gki-compat-test-1.0" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/gki-compat-test-1.0" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/gki-compat-test-1.0" ><span class="devsite-nav-text" tooltip>Compatibility testing</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Previous kernels (<=4.19)</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/previous-kernel-overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/previous-kernel-overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/previous-kernel-overview" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/linux-stable-merges" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/linux-stable-merges" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/linux-stable-merges" ><span class="devsite-nav-text" tooltip>Linux-stable merges</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/hardening" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/hardening" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/hardening" ><span class="devsite-nav-text" tooltip>Kernel hardening</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/llkd" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/llkd" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/llkd" ><span class="devsite-nav-text" tooltip>Android live-lock daemon</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/config" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav 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track-metadata-eventdetail="/docs/core/architecture/kernel/incfs" ><span class="devsite-nav-text" tooltip>Incremental File System</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/network_tests" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/network_tests" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/network_tests" ><span class="devsite-nav-text" tooltip>Kernel networking unit tests</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Modular kernels</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/modular-kernels" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/modular-kernels" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/modular-kernels" ><span class="devsite-nav-text" tooltip>Modular kernel requirements</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/mounting-partitions-early" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/mounting-partitions-early" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/mounting-partitions-early" ><span class="devsite-nav-text" tooltip>Mount partitions early</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/dto-support" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/dto-support" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/dto-support" ><span class="devsite-nav-text" tooltip>DTO support</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/ion_abi_changes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/ion_abi_changes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/ion_abi_changes" ><span class="devsite-nav-text" tooltip>ION ABI changes</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/ion-gki" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/ion-gki" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/ion-gki" ><span class="devsite-nav-text" tooltip>Modularize ION heaps for GKI</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/dma-buf-heaps" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/dma-buf-heaps" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/dma-buf-heaps" ><span class="devsite-nav-text" tooltip>Transition from ION to DMA-BUF heaps</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/core-kernel-reqs" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/core-kernel-reqs" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/core-kernel-reqs" ><span class="devsite-nav-text" tooltip>Core kernel requirements</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/architecture/kernel/erofs" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/kernel/erofs" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/kernel/erofs" ><span class="devsite-nav-text" tooltip>EROFS</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Configuration</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/configuration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/configuration" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/configuration" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/configuration/sysprops-apis" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/configuration/sysprops-apis" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/configuration/sysprops-apis" ><span class="devsite-nav-text" tooltip>Implement system properties as APIs</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/configuration/add-system-properties" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/configuration/add-system-properties" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/configuration/add-system-properties" ><span class="devsite-nav-text" tooltip>Add system properties</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/configuration/config-file-schema-api" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/configuration/config-file-schema-api" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/configuration/config-file-schema-api" ><span class="devsite-nav-text" tooltip>Implement Config File Schema API</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Archive</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/configuration/archive" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/configuration/archive" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/configuration/archive" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/configuration/archive/config-store" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/configuration/archive/config-store" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/configuration/archive/config-store" ><span class="devsite-nav-text" tooltip>ConfigStore</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/configuration/archive/interface" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/configuration/archive/interface" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/configuration/archive/interface" ><span class="devsite-nav-text" tooltip>Create the HAL interface</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/configuration/archive/service" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/configuration/archive/service" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/configuration/archive/service" ><span class="devsite-nav-text" tooltip>Implement the service</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/configuration/archive/client" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/configuration/archive/client" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/configuration/archive/client" ><span class="devsite-nav-text" tooltip>Client-side use</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/configuration/archive/add-class-item" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/configuration/archive/add-class-item" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/configuration/archive/add-class-item" ><span class="devsite-nav-text" tooltip>Add ConfigStore classes and items</span></a></li></ul></div></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Device tree overlays</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/dto" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/dto" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/dto" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/dto/implement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/dto/implement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/dto/implement" ><span class="devsite-nav-text" tooltip>Implement DTOs</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/dto/syntax" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/dto/syntax" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/dto/syntax" ><span class="devsite-nav-text" tooltip>DTO syntax</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/dto/compile" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/dto/compile" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/dto/compile" ><span class="devsite-nav-text" tooltip>Compile and verify</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/dto/multiple" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/dto/multiple" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/dto/multiple" ><span class="devsite-nav-text" tooltip>Use multiple DTs</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/dto/partitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/dto/partitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/dto/partitions" ><span class="devsite-nav-text" tooltip>DTB and DTBO partitions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/dto/optimize" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/dto/optimize" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/dto/optimize" ><span class="devsite-nav-text" tooltip>Optimize DTO</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Vendor NDK (<=AOSP 14)</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk/enabling" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk/enabling" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk/enabling" ><span class="devsite-nav-text" tooltip>Enable VNDK</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk/build-system" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk/build-system" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk/build-system" ><span class="devsite-nav-text" tooltip>VNDK build system support</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk/extensions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk/extensions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk/extensions" ><span class="devsite-nav-text" tooltip>VNDK extensions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk/snapshot-design" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk/snapshot-design" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk/snapshot-design" ><span class="devsite-nav-text" tooltip>VNDK snapshot design</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk/snapshot-generate" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk/snapshot-generate" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk/snapshot-generate" ><span class="devsite-nav-text" tooltip>Generate VNDK snapshots</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk/snapshot-vendor" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk/snapshot-vendor" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk/snapshot-vendor" ><span class="devsite-nav-text" tooltip>Generate vendor snapshots</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk/linker-namespace" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk/linker-namespace" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk/linker-namespace" ><span class="devsite-nav-text" tooltip>Linker namespace</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk/dir-rules-sepolicy" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk/dir-rules-sepolicy" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk/dir-rules-sepolicy" ><span class="devsite-nav-text" tooltip>Directories, rules, and sepolicy</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk/renderscript" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk/renderscript" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk/renderscript" ><span class="devsite-nav-text" tooltip>RenderScript</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk/abi-stability" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk/abi-stability" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk/abi-stability" ><span class="devsite-nav-text" tooltip>ABI stability</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vndk/abi-use-check" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vndk/abi-use-check" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vndk/abi-use-check" ><span class="devsite-nav-text" tooltip>Prebuilt ABI usages checker</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Vendor interface object</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/vintf" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vintf" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vintf" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vintf/objects" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vintf/objects" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vintf/objects" ><span class="devsite-nav-text" tooltip>Manifests</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vintf/comp-matrices" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vintf/comp-matrices" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vintf/comp-matrices" ><span class="devsite-nav-text" tooltip>Compatibility matrixes</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vintf/fcm" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vintf/fcm" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vintf/fcm" ><span class="devsite-nav-text" tooltip>FCM lifecycle</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vintf/dm" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vintf/dm" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vintf/dm" ><span class="devsite-nav-text" tooltip>Device manifest development</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vintf/match-rules" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vintf/match-rules" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vintf/match-rules" ><span class="devsite-nav-text" tooltip>Match rules</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/vintf/resources" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/vintf/resources" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/vintf/resources" ><span class="devsite-nav-text" tooltip>Additional resources</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>AIDL</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/aidl" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/aidl" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/aidl" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/aidl/aidl-language" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/aidl/aidl-language" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/aidl/aidl-language" ><span class="devsite-nav-text" tooltip>AIDL language</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/aidl/aidl-backends" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/aidl/aidl-backends" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/aidl/aidl-backends" ><span class="devsite-nav-text" tooltip>AIDL backends</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/aidl/stable-aidl" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/aidl/stable-aidl" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/aidl/stable-aidl" ><span class="devsite-nav-text" tooltip>Stable AIDL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/aidl/aidl-hals" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/aidl/aidl-hals" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/aidl/aidl-hals" ><span class="devsite-nav-text" tooltip>AIDL for HALs</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/aidl/dynamic-aidl" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/aidl/dynamic-aidl" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/aidl/dynamic-aidl" ><span class="devsite-nav-text" tooltip>Run AIDL services dynamically</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/aidl/aidl-annotations" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/aidl/aidl-annotations" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/aidl/aidl-annotations" ><span class="devsite-nav-text" tooltip>Annotations in AIDL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/aidl/fmq" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/aidl/fmq" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/aidl/fmq" ><span class="devsite-nav-text" tooltip>FMQ with AIDL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/aidl/aidl-fuzzing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/aidl/aidl-fuzzing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/aidl/aidl-fuzzing" ><span class="devsite-nav-text" tooltip>AIDL fuzzing</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/aidl/stable-aidl-apis" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/aidl/stable-aidl-apis" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/aidl/stable-aidl-apis" ><span class="devsite-nav-text" tooltip>AIDL style guide</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Bootloader</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/bootloader" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/bootloader" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/bootloader" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/bootloader/boot-reason" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/bootloader/boot-reason" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/bootloader/boot-reason" ><span class="devsite-nav-text" tooltip>Canonical boot reason</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/bootloader/boot-image-header" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/bootloader/boot-image-header" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/bootloader/boot-image-header" ><span class="devsite-nav-text" tooltip>Boot image header</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/bootloader/implementing-bootconfig" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/bootloader/implementing-bootconfig" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/bootloader/implementing-bootconfig" ><span class="devsite-nav-text" tooltip>Implement bootconfig</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/bootloader/recovery-images" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/bootloader/recovery-images" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/bootloader/recovery-images" ><span class="devsite-nav-text" tooltip>Recovery images</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/bootloader/dtb-images" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/bootloader/dtb-images" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/bootloader/dtb-images" ><span class="devsite-nav-text" tooltip>DTB images</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/bootloader/updating" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/bootloader/updating" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/bootloader/updating" ><span class="devsite-nav-text" tooltip>Implement OTA updates</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/bootloader/locking_unlocking" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/bootloader/locking_unlocking" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/bootloader/locking_unlocking" ><span class="devsite-nav-text" tooltip>Lock and unlock the bootloader</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/bootloader/version-info-avb" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/bootloader/version-info-avb" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/bootloader/version-info-avb" ><span class="devsite-nav-text" tooltip>Version information in AVB properties</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/bootloader/fastbootd" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/bootloader/fastbootd" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/bootloader/fastbootd" ><span class="devsite-nav-text" tooltip>Move fastboot to userspace</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Partitions</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions/system-as-root" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions/system-as-root" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions/system-as-root" ><span class="devsite-nav-text" tooltip>Partition layout</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions/vendor-boot-partitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions/vendor-boot-partitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions/vendor-boot-partitions" ><span class="devsite-nav-text" tooltip>Vendor boot partitions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions/vendor-odm-dlkm-partition" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions/vendor-odm-dlkm-partition" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions/vendor-odm-dlkm-partition" ><span class="devsite-nav-text" tooltip>Vendor and ODM DLKM partitions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions/shared-system-image" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions/shared-system-image" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions/shared-system-image" ><span class="devsite-nav-text" tooltip>Android shared system image</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions/ramdisk-partitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions/ramdisk-partitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions/ramdisk-partitions" ><span class="devsite-nav-text" tooltip>Ramdisk partitions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions/generic-boot" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions/generic-boot" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions/generic-boot" ><span class="devsite-nav-text" tooltip>Generic boot partition</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions/odm-partitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions/odm-partitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions/odm-partitions" ><span class="devsite-nav-text" tooltip>ODM partitions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions/product-partitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions/product-partitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions/product-partitions" ><span class="devsite-nav-text" tooltip>Product partitions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions/gki-partitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions/gki-partitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions/gki-partitions" ><span class="devsite-nav-text" tooltip>Implement a GKI module partition</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions/product-interfaces" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions/product-interfaces" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions/product-interfaces" ><span class="devsite-nav-text" tooltip>Enforce product partition interfaces</span></a></li><li class="devsite-nav-item"><a href="/docs/core/architecture/partitions/tos-partitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/partitions/tos-partitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/partitions/tos-partitions" ><span class="devsite-nav-text" tooltip>Trusty OS partitions</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>16KB page size</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/architecture/16kb-page-size/16kb" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/16kb-page-size/16kb" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/16kb-page-size/16kb" ><span class="devsite-nav-text" tooltip>Overview</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/architecture/16kb-page-size/getting-started-cf-arm64-pgagnostic" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/16kb-page-size/getting-started-cf-arm64-pgagnostic" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/16kb-page-size/getting-started-cf-arm64-pgagnostic" ><span class="devsite-nav-text" tooltip>Use Cuttlefish with 16 KB page size on ARM64</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/architecture/16kb-page-size/getting-started-cf-x86-64-pgagnostic" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/16kb-page-size/getting-started-cf-x86-64-pgagnostic" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/16kb-page-size/getting-started-cf-x86-64-pgagnostic" ><span class="devsite-nav-text" tooltip>Simulate Cuttlefish with 16 KB page size on x86-64</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/architecture/16kb-page-size/flash-pixel6-with-16kb-kernel" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/16kb-page-size/flash-pixel6-with-16kb-kernel" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/16kb-page-size/flash-pixel6-with-16kb-kernel" ><span class="devsite-nav-text" tooltip>Flash Pixel 6 with 16 KB page size kernel</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/architecture/16kb-page-size/getting-page-size" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/16kb-page-size/getting-page-size" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/16kb-page-size/getting-page-size" ><span class="devsite-nav-text" tooltip>Get the page size</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/architecture/16kb-page-size/system-properties" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/16kb-page-size/system-properties" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/16kb-page-size/system-properties" ><span class="devsite-nav-text" tooltip>16 KB system properties</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/architecture/16kb-page-size/16kb-developer-option" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/16kb-page-size/16kb-developer-option" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/16kb-page-size/16kb-developer-option" ><span class="devsite-nav-text" tooltip>Enable 16 KB toggle</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/architecture/api-flags" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/architecture/api-flags" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/architecture/api-flags" ><span class="devsite-nav-text" tooltip>Vendor API level</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Audio</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/audio" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/terminology" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/terminology" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/terminology" ><span class="devsite-nav-text" tooltip>Terminology</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Implementation</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/audio/implement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/implement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/implement" ><span class="devsite-nav-text" tooltip>Audio HAL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/aidl-implement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/aidl-implement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/aidl-implement" ><span class="devsite-nav-text" tooltip>AIDL Audio HAL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/aidl-hidl-comp" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/aidl-hidl-comp" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/aidl-hidl-comp" ><span class="devsite-nav-text" tooltip>AIDL and HIDL Audio HAL comparison</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>HIDL</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/audio/hidl-implement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/hidl-implement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/hidl-implement" ><span class="devsite-nav-text" tooltip>HIDL Audio HAL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/implement-policy" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/implement-policy" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/implement-policy" ><span class="devsite-nav-text" tooltip>Configure audio policies</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/implement-shared-library" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/implement-shared-library" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/implement-shared-library" ><span class="devsite-nav-text" tooltip>Configure a shared library</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/audio/implement-pre-processing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/implement-pre-processing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/implement-pre-processing" ><span class="devsite-nav-text" tooltip>Configure preprocessing effects</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/audio/data_formats" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/data_formats" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/data_formats" ><span class="devsite-nav-text" tooltip>Data formats</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/attributes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/attributes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/attributes" ><span class="devsite-nav-text" tooltip>Attributes</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/audio-effects" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/audio-effects" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/audio-effects" ><span class="devsite-nav-text" tooltip>Effects</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/highres-effects" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/highres-effects" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/highres-effects" ><span class="devsite-nav-text" tooltip>High-resolution audio</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/device-type-limit" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/device-type-limit" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/device-type-limit" ><span class="devsite-nav-text" tooltip>Device type limit</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/aaudio" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/aaudio" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/aaudio" ><span class="devsite-nav-text" tooltip>AAudio and MMAP</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/warmup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/warmup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/warmup" ><span class="devsite-nav-text" tooltip>Audio warmup</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Latency</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/audio/latency/latency" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/latency/latency" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/latency/latency" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/latency/contrib" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/latency/contrib" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/latency/contrib" ><span class="devsite-nav-text" tooltip>Contributors</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/latency/design" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/latency/design" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/latency/design" ><span class="devsite-nav-text" tooltip>Design for reduced latency</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/latency/measure" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/latency/measure" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/latency/measure" ><span class="devsite-nav-text" tooltip>Measure audio latency</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/latency/testing_circuit" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/latency/testing_circuit" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/latency/testing_circuit" ><span class="devsite-nav-text" tooltip>Light testing circuit</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/latency/loopback" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/latency/loopback" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/latency/loopback" ><span class="devsite-nav-text" tooltip>Audio loopback dongle</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/latency/measurements" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/latency/measurements" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/latency/measurements" ><span class="devsite-nav-text" tooltip>Measurements</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/latency/app" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/latency/app" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/latency/app" ><span class="devsite-nav-text" tooltip>For app developers</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/audio/avoiding_pi" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/avoiding_pi" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/avoiding_pi" ><span class="devsite-nav-text" tooltip>Avoid priority inversion</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/src" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/src" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/src" ><span class="devsite-nav-text" tooltip>Sample rate conversion</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/debugging" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/debugging" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/debugging" ><span class="devsite-nav-text" tooltip>Debugging</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>MIDI</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/audio/midi" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/midi" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/midi" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/midi_arch" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/midi_arch" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/midi_arch" ><span class="devsite-nav-text" tooltip>MIDI architecture</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/midi_test" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/midi_test" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/midi_test" ><span class="devsite-nav-text" tooltip>MIDI test procedure</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>USB</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/audio/usb" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/usb" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/usb" ><span class="devsite-nav-text" tooltip>USB digital audio</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/preferred-mixer-attr" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/preferred-mixer-attr" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/preferred-mixer-attr" ><span class="devsite-nav-text" tooltip>Preferred mixer attributes on USB devices</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/audio/tv" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/tv" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/tv" ><span class="devsite-nav-text" tooltip>TV audio</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/concurrent" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/concurrent" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/concurrent" ><span class="devsite-nav-text" tooltip>Concurrent capture</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/sound-trigger" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/sound-trigger" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/sound-trigger" ><span class="devsite-nav-text" tooltip>Sound Trigger</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/combined-audio-routing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/combined-audio-routing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/combined-audio-routing" ><span class="devsite-nav-text" tooltip>Combined audio device routing</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Spatial audio</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/audio/spatial" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/spatial" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/spatial" ><span class="devsite-nav-text" tooltip>Spatial audio and head tracking</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/implement-spatial-audio" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/implement-spatial-audio" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/implement-spatial-audio" ><span class="devsite-nav-text" tooltip>Implementation</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/audio/ht-leaudio" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/ht-leaudio" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/ht-leaudio" ><span class="devsite-nav-text" tooltip>Head tracking over LE audio</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/audio/sound-dose" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/sound-dose" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/sound-dose" ><span class="devsite-nav-text" tooltip>Sound dose</span></a></li><li class="devsite-nav-item"><a href="/docs/core/audio/soundbar" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/audio/soundbar" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/audio/soundbar" ><span class="devsite-nav-text" tooltip>Dynamic soundbar mode</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Camera</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/camera" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Architecture</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/camera/camera3" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/camera3" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/camera3" ><span class="devsite-nav-text" tooltip>Camera HAL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/camera3_requests_hal" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/camera3_requests_hal" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/camera3_requests_hal" ><span class="devsite-nav-text" tooltip>HAL subsystem</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Core concepts</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/camera/camera3_3Amodes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/camera3_3Amodes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/camera3_3Amodes" ><span class="devsite-nav-text" tooltip>3A modes and state transition</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/debugging" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/debugging" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/debugging" ><span class="devsite-nav-text" tooltip>Camera debugging</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/camera3_error_stream" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/camera3_error_stream" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/camera3_error_stream" ><span class="devsite-nav-text" tooltip>Error and stream handling</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/camera3_metadata" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/camera3_metadata" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/camera3_metadata" ><span class="devsite-nav-text" tooltip>Metadata and controls</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/camera3_crop_reprocess" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/camera3_crop_reprocess" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/camera3_crop_reprocess" ><span class="devsite-nav-text" tooltip>Output streams, cropping, and zoom</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/camera3_requests_methods" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/camera3_requests_methods" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/camera3_requests_methods" ><span class="devsite-nav-text" tooltip>Request creation and submission</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/camera/stream-config" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/stream-config" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/stream-config" ><span class="devsite-nav-text" tooltip>Stream configurations</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Performance</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/camera/buffer-management-api" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/buffer-management-api" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/buffer-management-api" ><span class="devsite-nav-text" tooltip>Camera HAL3 buffer management APIs</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/session-parameters" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/session-parameters" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/session-parameters" ><span class="devsite-nav-text" tooltip>Session parameters</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/singleprod-multiconsum" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/singleprod-multiconsum" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/singleprod-multiconsum" ><span class="devsite-nav-text" tooltip>Single producer, multiple consumer</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Camera features</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/camera/10-bit-camera-output" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/10-bit-camera-output" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/10-bit-camera-output" ><span class="devsite-nav-text" tooltip>10-bit camera output</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/bokeh" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/bokeh" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/bokeh" ><span class="devsite-nav-text" tooltip>Camera bokeh</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/concurrent-streaming" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/concurrent-streaming" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/concurrent-streaming" ><span class="devsite-nav-text" tooltip>Concurrent camera streaming</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/camerax-vendor-extensions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/camerax-vendor-extensions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/camerax-vendor-extensions" ><span class="devsite-nav-text" tooltip>Camera extensions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/camerax-vendor-extensions-validation-tool" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/camerax-vendor-extensions-validation-tool" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/camerax-vendor-extensions-validation-tool" ><span class="devsite-nav-text" tooltip>Camera extensions validation tool</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/camera-preview-stabilization" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/camera-preview-stabilization" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/camera-preview-stabilization" ><span class="devsite-nav-text" tooltip>Camera preview stabilization</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/external-usb-cameras" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/external-usb-cameras" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/external-usb-cameras" ><span class="devsite-nav-text" tooltip>External USB cameras</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/hdr-modes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/hdr-modes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/hdr-modes" ><span class="devsite-nav-text" tooltip>High dynamic range modes</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/heif" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/heif" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/heif" ><span class="devsite-nav-text" tooltip>HEIF imaging</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/monochrome" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/monochrome" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/monochrome" ><span class="devsite-nav-text" tooltip>Monochrome cameras</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/motion-tracking" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/motion-tracking" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/motion-tracking" ><span class="devsite-nav-text" tooltip>Motion tracking</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/multi-camera" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/multi-camera" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/multi-camera" ><span class="devsite-nav-text" tooltip>Multi-camera support</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/system-cameras" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/system-cameras" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/system-cameras" ><span class="devsite-nav-text" tooltip>System cameras</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/torch-strength-control" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/torch-strength-control" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/torch-strength-control" ><span class="devsite-nav-text" tooltip>Torch strength control</span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/ultra-hdr" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/ultra-hdr" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/ultra-hdr" ><span class="devsite-nav-text" tooltip>Ultra HDR</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/camera/webcam" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/webcam" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/webcam" ><span class="devsite-nav-text" tooltip>Use a device as a webcam</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item"><a href="/docs/core/camera/wide-gamut" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/wide-gamut" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/wide-gamut" ><span class="devsite-nav-text" tooltip>Wide gamut capture</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Versioning</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/camera/versioning" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/camera/versioning" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/camera/versioning" ><span class="devsite-nav-text" tooltip>Camera version support</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Connectivity</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/connect" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Bluetooth</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/connect/bluetooth" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/bluetooth" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/bluetooth" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/bluetooth/services" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/bluetooth/services" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/bluetooth/services" ><span class="devsite-nav-text" tooltip>Bluetooth services</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/bluetooth/ble" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/bluetooth/ble" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/bluetooth/ble" ><span class="devsite-nav-text" tooltip>Bluetooth Low Energy</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/bluetooth/asha" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/bluetooth/asha" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/bluetooth/asha" ><span class="devsite-nav-text" tooltip>Hearing aid audio support using BLE</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/bluetooth/ble_advertising" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/bluetooth/ble_advertising" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/bluetooth/ble_advertising" ><span class="devsite-nav-text" tooltip>BLE advertising</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/bluetooth/verifying_debugging" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/bluetooth/verifying_debugging" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/bluetooth/verifying_debugging" ><span class="devsite-nav-text" tooltip>Verify and debug</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/bluetooth/hci_requirements" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/bluetooth/hci_requirements" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/bluetooth/hci_requirements" ><span class="devsite-nav-text" tooltip>HCI requirements</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/presence-requirements" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/presence-requirements" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/presence-requirements" ><span class="devsite-nav-text" tooltip>Presence calibration</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>NFC</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/connect/felica" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/felica" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/felica" ><span class="devsite-nav-text" tooltip>Host card emulation of FeliCa</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/offhost-payment-sync" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/offhost-payment-sync" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/offhost-payment-sync" ><span class="devsite-nav-text" tooltip>NFC off-host payment synchronization</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/secure-nfc" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/secure-nfc" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/secure-nfc" ><span class="devsite-nav-text" tooltip>Secure NFC</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/quick-access-wallet" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/quick-access-wallet" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/quick-access-wallet" ><span class="devsite-nav-text" tooltip>Quick Access Wallet</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/connect/android-proprietary-nci-commands" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/android-proprietary-nci-commands" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/android-proprietary-nci-commands" ><span class="devsite-nav-text" tooltip>Android proprietary NCI commands</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Calling and messaging</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/connect/5g-nsa" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/5g-nsa" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/5g-nsa" ><span class="devsite-nav-text" tooltip>5G non-standalone (NSA)</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/block-numbers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/block-numbers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/block-numbers" ><span class="devsite-nav-text" tooltip>Implement phone number blocking</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/call-notification" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/call-notification" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/call-notification" ><span class="devsite-nav-text" tooltip>Call notifications</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/connect/domain-selection" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/domain-selection" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/domain-selection" ><span class="devsite-nav-text" tooltip>Domain selection service</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/emergency-affordance" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/emergency-affordance" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/emergency-affordance" ><span class="devsite-nav-text" tooltip>Implement Emergency Affordance</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/emergency-number-db" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/emergency-number-db" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/emergency-number-db" ><span class="devsite-nav-text" tooltip>Android emergency number database</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/emergency-call" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/emergency-call" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/emergency-call" ><span class="devsite-nav-text" tooltip>Emergency numbers and emergency calling</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/ims" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/ims" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/ims" ><span class="devsite-nav-text" tooltip>Implement IMS</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/ims-service-entitlement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/ims-service-entitlement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/ims-service-entitlement" ><span class="devsite-nav-text" tooltip>IMS service entitlement</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/ims-single-registration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/ims-single-registration" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/ims-single-registration" ><span class="devsite-nav-text" tooltip>IMS single registration</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/phone-account-suggestion" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/phone-account-suggestion" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/phone-account-suggestion" ><span class="devsite-nav-text" tooltip>Phone account suggestion</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/rtt" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/rtt" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/rtt" ><span class="devsite-nav-text" tooltip>Implement RTT</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/third-party-call-apps" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/third-party-call-apps" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/third-party-call-apps" ><span class="devsite-nav-text" tooltip>Support third-party calling apps</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/voicemail" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/voicemail" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/voicemail" ><span class="devsite-nav-text" tooltip>Visual voicemail</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Carrier</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/connect/carrier" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/carrier" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/carrier" ><span class="devsite-nav-text" tooltip>Overview</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/5g-slicing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/5g-slicing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/5g-slicing" ><span class="devsite-nav-text" tooltip>5G network slicing</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/update" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/update" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/update" ><span class="devsite-nav-text" tooltip>APN and CarrierConfig</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/carrierid" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/carrierid" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/carrierid" ><span class="devsite-nav-text" tooltip>Carrier identification</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/data-plans" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/data-plans" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/data-plans" ><span class="devsite-nav-text" tooltip>Implement data plans</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/device-identifiers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/device-identifiers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/device-identifiers" ><span class="devsite-nav-text" tooltip>Device identifiers</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>eSIM</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/connect/esim-overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/esim-overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/esim-overview" ><span class="devsite-nav-text" tooltip>Implement eSIM</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/esim-modem-requirements" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/esim-modem-requirements" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/esim-modem-requirements" ><span class="devsite-nav-text" tooltip>Modem requirements for eSIM support</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/esim-euicc-api" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/esim-euicc-api" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/esim-euicc-api" ><span class="devsite-nav-text" tooltip>eUICC APIs</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/esim-mep" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/esim-mep" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/esim-mep" ><span class="devsite-nav-text" tooltip>Multiple enabled profiles</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/esim-error-handling" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/esim-error-handling" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/esim-error-handling" ><span class="devsite-nav-text" tooltip>Handle eUICC API errors</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/esim-test-profiles" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/esim-test-profiles" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/esim-test-profiles" ><span class="devsite-nav-text" tooltip>Downloadable test profiles</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/esim-transfer-carrier-integration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/esim-transfer-carrier-integration" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/esim-transfer-carrier-integration" ><span class="devsite-nav-text" tooltip>eSIM transfer carrier integration</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/connect/vpn-ux" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/vpn-ux" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/vpn-ux" ><span class="devsite-nav-text" tooltip>Improve VPN user experience</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/multi-operator-networks" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/multi-operator-networks" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/multi-operator-networks" ><span class="devsite-nav-text" tooltip>Multi-operator network support</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/oob-users" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/oob-users" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/oob-users" ><span class="devsite-nav-text" tooltip>Customize device behavior for out-of-balance users</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/ril" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/ril" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/ril" ><span class="devsite-nav-text" tooltip>RIL refactoring</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/small-cell" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/small-cell" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/small-cell" ><span class="devsite-nav-text" tooltip>Small cell support</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/uicc" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/uicc" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/uicc" ><span class="devsite-nav-text" tooltip>UICC carrier privileges</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Time</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/connect/time" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/time" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/time" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/time/location-tz-detection" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/time/location-tz-detection" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/time/location-tz-detection" ><span class="devsite-nav-text" tooltip>Location time zone detection</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/time/telephony-tz-detection" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/time/telephony-tz-detection" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/time/telephony-tz-detection" ><span class="devsite-nav-text" tooltip>Telephony time zone detection</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/time/network-time-detection" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/time/network-time-detection" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/time/network-time-detection" ><span class="devsite-nav-text" tooltip>Network time detection</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/time/gnss-time-detection" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/time/gnss-time-detection" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/time/gnss-time-detection" ><span class="devsite-nav-text" tooltip>GNSS time detection</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/time/external-time-detection" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/time/external-time-detection" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/time/external-time-detection" ><span class="devsite-nav-text" tooltip>External time detection</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/time-source" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/time-source" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/time-source" ><span class="devsite-nav-text" tooltip>Time source priority</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/time/time-zone-policy-recommendations" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/time/time-zone-policy-recommendations" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/time/time-zone-policy-recommendations" ><span class="devsite-nav-text" tooltip>Time zone policy and recommendations</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/timezone-rules" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/timezone-rules" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/timezone-rules" ><span class="devsite-nav-text" tooltip>Time zone rules</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Ultra-wideband</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/connect/uwb" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/uwb" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/uwb" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/uwb-hal-interface" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/uwb-hal-interface" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/uwb-hal-interface" ><span class="devsite-nav-text" tooltip>UWB HAL interface</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Wi-Fi</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-overview" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-hal" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-hal" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-hal" ><span class="devsite-nav-text" tooltip>Wi-Fi HAL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-infrastructure" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-infrastructure" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-infrastructure" ><span class="devsite-nav-text" tooltip>Wi-Fi infrastructure features</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-debug" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-debug" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-debug" ><span class="devsite-nav-text" tooltip>Test, debug, and tune Wi-Fi</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/android-packet-filter" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/android-packet-filter" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/android-packet-filter" ><span class="devsite-nav-text" tooltip>Android Packet Filter</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/carrier-wifi" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/carrier-wifi" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/carrier-wifi" ><span class="devsite-nav-text" tooltip>Carrier Wi-Fi</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-mac-randomization-behavior" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-mac-randomization-behavior" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-mac-randomization-behavior" ><span class="devsite-nav-text" tooltip>MAC randomization behavior</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-mac-randomization" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-mac-randomization" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-mac-randomization" ><span class="devsite-nav-text" tooltip>Implement MAC randomization</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-passpoint" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-passpoint" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-passpoint" ><span class="devsite-nav-text" tooltip>Passpoint (Hotspot 2.0)</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-sta-ap-concurrency" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-sta-ap-concurrency" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-sta-ap-concurrency" ><span class="devsite-nav-text" tooltip>Wi-Fi STA/AP concurrency</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-sta-sta-concurrency" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-sta-sta-concurrency" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-sta-sta-concurrency" ><span class="devsite-nav-text" tooltip>Wi-Fi STA/STA concurrency</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-tofu" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-tofu" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-tofu" ><span class="devsite-nav-text" tooltip>Trust on First Use (TOFU)</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-aware" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-aware" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-aware" ><span class="devsite-nav-text" tooltip>Wi-Fi Aware</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-coex-channel-avoidance" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-coex-channel-avoidance" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-coex-channel-avoidance" ><span class="devsite-nav-text" tooltip>Wi-Fi/cellular coex channel avoidance</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-direct" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-direct" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-direct" ><span class="devsite-nav-text" tooltip>Wi-Fi Direct</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-easy-connect" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-easy-connect" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-easy-connect" ><span class="devsite-nav-text" tooltip>Wi-Fi Easy Connect</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-softap" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-softap" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-softap" ><span class="devsite-nav-text" tooltip>Wi-Fi hotspot (Soft AP)</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-ap-ap-concurrency" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-ap-ap-concurrency" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-ap-ap-concurrency" ><span class="devsite-nav-text" tooltip>Wi-Fi AP/AP concurrency</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-low-latency" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-low-latency" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-low-latency" ><span class="devsite-nav-text" tooltip>Wi-Fi low-latency mode</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-network-selection" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-network-selection" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-network-selection" ><span class="devsite-nav-text" tooltip>Wi-Fi network selection</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-scan" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-scan" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-scan" ><span class="devsite-nav-text" tooltip>Wi-Fi preferred network offload scanning</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/connect/wifi-rtt" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-rtt" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-rtt" ><span class="devsite-nav-text" tooltip>Wi-Fi Round Trip Time (RTT)</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-wpa3-owe" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-wpa3-owe" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-wpa3-owe" ><span class="devsite-nav-text" tooltip>WPA3 and Wi-Fi Enhanced Open</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/wifi-7" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/wifi-7" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/wifi-7" ><span class="devsite-nav-text" tooltip>Wi-Fi 7</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>ACTS tests</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/connect/acts" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/acts" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/acts" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/acts-advanced-guide" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/acts-advanced-guide" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/acts-advanced-guide" ><span class="devsite-nav-text" tooltip>Advanced ACTS guide</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/acts-config" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/acts-config" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/acts-config" ><span class="devsite-nav-text" tooltip>Configure ACTS tests</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/acts-user-params" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/acts-user-params" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/acts-user-params" ><span class="devsite-nav-text" tooltip>User parameters</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/acts-5g-testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/acts-5g-testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/acts-5g-testing" ><span class="devsite-nav-text" tooltip>5G testing</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/connect/companion-device-profile" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/companion-device-profile" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/companion-device-profile" ><span class="devsite-nav-text" tooltip>Companion device profiles</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/connectivity-diagnostics-api" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/connectivity-diagnostics-api" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/connectivity-diagnostics-api" ><span class="devsite-nav-text" tooltip>Connectivity Diagnostics API</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/connectivity-ui" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/connectivity-ui" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/connectivity-ui" ><span class="devsite-nav-text" tooltip>Connectivity user interface</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/network-selection" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/network-selection" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/network-selection" ><span class="devsite-nav-text" tooltip>Network selection</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/signal-strength" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/signal-strength" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/signal-strength" ><span class="devsite-nav-text" tooltip>Signal strength reporting</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Data</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/data" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/data" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/data" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/data/tags-explained" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/data/tags-explained" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/data/tags-explained" ><span class="devsite-nav-text" tooltip>Data usage tags explained</span></a></li><li class="devsite-nav-item"><a href="/docs/core/data/data-saver" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/data/data-saver" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/data/data-saver" ><span class="devsite-nav-text" tooltip>Data Saver mode</span></a></li><li class="devsite-nav-item"><a href="/docs/core/data/ebpf-traffic-monitor" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/data/ebpf-traffic-monitor" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/data/ebpf-traffic-monitor" ><span class="devsite-nav-text" tooltip>eBPF traffic monitoring</span></a></li><li class="devsite-nav-item"><a href="/docs/core/data/excluding-network-types" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/data/excluding-network-types" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/data/excluding-network-types" ><span class="devsite-nav-text" tooltip>Exclude network types from usage data</span></a></li><li class="devsite-nav-item"><a href="/docs/core/data/iface-overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/data/iface-overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/data/iface-overview" ><span class="devsite-nav-text" tooltip>Network interface statistics overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/data/tethering-data" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/data/tethering-data" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/data/tethering-data" ><span class="devsite-nav-text" tooltip>Tethering data</span></a></li><li class="devsite-nav-item"><a href="/docs/core/data/tethering-offload" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/data/tethering-offload" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/data/tethering-offload" ><span class="devsite-nav-text" tooltip>Tethering hardware offload</span></a></li><li class="devsite-nav-item"><a href="/docs/core/data/usage-cycle-resets-dates" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/data/usage-cycle-resets-dates" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/data/usage-cycle-resets-dates" ><span class="devsite-nav-text" tooltip>Usage cycle reset dates</span></a></li><li class="devsite-nav-item"><a href="/docs/core/data/kernel-overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/data/kernel-overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/data/kernel-overview" ><span class="devsite-nav-text" tooltip>Kernel overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/data/kernel-changes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/data/kernel-changes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/data/kernel-changes" ><span class="devsite-nav-text" tooltip>Kernel changes</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Display</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/display" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Apps</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/display/adaptive-icons" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/adaptive-icons" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/adaptive-icons" ><span class="devsite-nav-text" tooltip>Implement adaptive icons</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/app-shortcuts" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/app-shortcuts" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/app-shortcuts" ><span class="devsite-nav-text" tooltip>App shortcuts</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/circular-icons" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/circular-icons" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/circular-icons" ><span class="devsite-nav-text" tooltip>Implement circular icons</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/conv-notifications" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/conv-notifications" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/conv-notifications" ><span class="devsite-nav-text" tooltip>Conversation notifications and widgets</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/window-blurs" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/window-blurs" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/window-blurs" ><span class="devsite-nav-text" tooltip>Window blurs</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/widgets-shortcuts" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/widgets-shortcuts" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/widgets-shortcuts" ><span class="devsite-nav-text" tooltip>Widgets and shortcuts</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/synched-app-transitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/synched-app-transitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/synched-app-transitions" ><span class="devsite-nav-text" tooltip>Implement synchronized app transitions</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Color</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/display/color-mgmt" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/color-mgmt" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/color-mgmt" ><span class="devsite-nav-text" tooltip>Color management</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/display-cutouts" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/display-cutouts" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/display-cutouts" ><span class="devsite-nav-text" tooltip>Display cutouts</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/dnd" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/dnd" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/dnd" ><span class="devsite-nav-text" tooltip>Do not disturb</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/hdr" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/hdr" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/hdr" ><span class="devsite-nav-text" tooltip>HDR video playback</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/night-light" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/night-light" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/night-light" ><span class="devsite-nav-text" tooltip>Implement night light</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/tone-mapping" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/tone-mapping" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/tone-mapping" ><span class="devsite-nav-text" tooltip>Tone mapping HDR luminance to an SDR-compatible range</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/material" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/material" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/material" ><span class="devsite-nav-text" tooltip>Material You design</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/dynamic-color" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/dynamic-color" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/dynamic-color" ><span class="devsite-nav-text" tooltip>Dynamic color</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Multi-Window</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/display/multi-window" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi-window" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi-window" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/split-screen" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/split-screen" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/split-screen" ><span class="devsite-nav-text" tooltip>Split-screen interactions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/pip" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/pip" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/pip" ><span class="devsite-nav-text" tooltip>Picture-in-picture</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/window-magnifier" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/window-magnifier" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/window-magnifier" ><span class="devsite-nav-text" tooltip>Window magnification</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Multi-Display</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/display/multi_display" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/multi_display/recommended-practices" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display/recommended-practices" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display/recommended-practices" ><span class="devsite-nav-text" tooltip>Recommended practices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/multi_display/testing-dev-environment" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display/testing-dev-environment" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display/testing-dev-environment" ><span class="devsite-nav-text" tooltip>Testing and development environment</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/multi_display/faq" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display/faq" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display/faq" ><span class="devsite-nav-text" tooltip>Frequently asked questions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/multi_display/multi-resume" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display/multi-resume" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display/multi-resume" ><span class="devsite-nav-text" tooltip>Multi-resume</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/multi_display/activity-launch" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display/activity-launch" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display/activity-launch" ><span class="devsite-nav-text" tooltip>Activity launch policy</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/multi_display/displays" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display/displays" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display/displays" ><span class="devsite-nav-text" tooltip>Display support</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/multi_display/system-decorations" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display/system-decorations" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display/system-decorations" ><span class="devsite-nav-text" tooltip>System decorations support</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/multi_display/lock-screen" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display/lock-screen" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display/lock-screen" ><span class="devsite-nav-text" tooltip>Lock screen</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/multi_display/ime-support" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display/ime-support" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display/ime-support" ><span class="devsite-nav-text" tooltip>Input method editor support</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/multi_display/input-routing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display/input-routing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display/input-routing" ><span class="devsite-nav-text" tooltip>Input routing</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/multi_display/multi-zone-audio" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/multi_display/multi-zone-audio" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/multi_display/multi-zone-audio" ><span class="devsite-nav-text" tooltip>Multi-zone audio</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Notifications</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/display/notification-history" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/notification-history" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/notification-history" ><span class="devsite-nav-text" tooltip>Notification history</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/notification-perm" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/notification-perm" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/notification-perm" ><span class="devsite-nav-text" tooltip>Permission for opt-In notifications</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/display/task-manager" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/task-manager" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/task-manager" ><span class="devsite-nav-text" tooltip>Task Manager</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/retail-mode" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/retail-mode" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/retail-mode" ><span class="devsite-nav-text" tooltip>Retail demo mode</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/rotate-suggestions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/rotate-suggestions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/rotate-suggestions" ><span class="devsite-nav-text" tooltip>Rotate suggestions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/textclassifier" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/textclassifier" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/textclassifier" ><span class="devsite-nav-text" tooltip>Implement text classifier</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/mixed-sdr-hdr" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/mixed-sdr-hdr" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/mixed-sdr-hdr" ><span class="devsite-nav-text" tooltip>Mixed SDR and HDR composition</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/media-control" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/media-control" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/media-control" ><span class="devsite-nav-text" tooltip>Media controls in System UI</span></a></li><li class="devsite-nav-item"><a href="/docs/core/display/windowmanager-extensions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/display/windowmanager-extensions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/display/windowmanager-extensions" ><span class="devsite-nav-text" tooltip>WindowManager extensions</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Fonts</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/fonts/custom-font-fallback" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/fonts/custom-font-fallback" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/fonts/custom-font-fallback" ><span class="devsite-nav-text" tooltip>Implement custom font fallback</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Graphics</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/graphics" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/architecture" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/architecture" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/architecture" ><span class="devsite-nav-text" tooltip>Architecture</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/arch-bq-gralloc" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/arch-bq-gralloc" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/arch-bq-gralloc" ><span class="devsite-nav-text" tooltip>BufferQueue and Gralloc</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/implement-dma-buf-gpu-mem" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/implement-dma-buf-gpu-mem" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/implement-dma-buf-gpu-mem" ><span class="devsite-nav-text" tooltip>Implement DMABUF and GPU memory accounting</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/tracing-win-transitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/tracing-win-transitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/tracing-win-transitions" ><span class="devsite-nav-text" tooltip>Trace window transitions using Winscope</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Surface and SurfaceHolder</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/graphics/arch-sh" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/arch-sh" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/arch-sh" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/arch-sv-glsv" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/arch-sv-glsv" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/arch-sv-glsv" ><span class="devsite-nav-text" tooltip>SurfaceView and GLSurfaceView</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/arch-st" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/arch-st" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/arch-st" ><span class="devsite-nav-text" tooltip>SurfaceTexture</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/arch-tv" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/arch-tv" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/arch-tv" ><span class="devsite-nav-text" tooltip>TextureView</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>SurfaceFlinger and WindowManager</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/graphics/surfaceflinger-windowmanager" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/surfaceflinger-windowmanager" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/surfaceflinger-windowmanager" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/surfaceflinger-props" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/surfaceflinger-props" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/surfaceflinger-props" ><span class="devsite-nav-text" tooltip>System properties in SurfaceFlinger</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Hardware Composer HAL</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/graphics/hwc" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/hwc" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/hwc" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/implement-hwc" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/implement-hwc" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/implement-hwc" ><span class="devsite-nav-text" tooltip>Implement HWC HAL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/hotplug" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/hotplug" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/hotplug" ><span class="devsite-nav-text" tooltip>Hotplug handling</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/aidl-hwc" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/aidl-hwc" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/aidl-hwc" ><span class="devsite-nav-text" tooltip>AIDL for HWC HAL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/framebuffer-mgmt" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/framebuffer-mgmt" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/framebuffer-mgmt" ><span class="devsite-nav-text" tooltip>Client framebuffer management</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/reduce-consumption" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/reduce-consumption" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/reduce-consumption" ><span class="devsite-nav-text" tooltip>Reduce graphics memory consumption</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/graphics/layers-displays" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/layers-displays" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/layers-displays" ><span class="devsite-nav-text" tooltip>Layers and displays</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/implement-vsync" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/implement-vsync" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/implement-vsync" ><span class="devsite-nav-text" tooltip>VSYNC</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/frame-pacing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/frame-pacing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/frame-pacing" ><span class="devsite-nav-text" tooltip>Frame pacing</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/multiple-refresh-rate" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/multiple-refresh-rate" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/multiple-refresh-rate" ><span class="devsite-nav-text" tooltip>Multiple refresh rate</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/graphics/arr" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/arr" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/arr" ><span class="devsite-nav-text" tooltip>Adaptive refresh rate</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>EGLSurfaces and OpenGL ES</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/graphics/arch-egl-opengl" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/arch-egl-opengl" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/arch-egl-opengl" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/implement-opengl-es" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/implement-opengl-es" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/implement-opengl-es" ><span class="devsite-nav-text" tooltip>Implement OpenGL ES and EGL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/renderer" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/renderer" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/renderer" ><span class="devsite-nav-text" tooltip>OpenGLRenderer configuration</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Vulkan</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/graphics/arch-vulkan" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/arch-vulkan" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/arch-vulkan" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/implement-vulkan" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/implement-vulkan" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/implement-vulkan" ><span class="devsite-nav-text" tooltip>Implement Vulkan</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/graphics/sync" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/sync" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/sync" ><span class="devsite-nav-text" tooltip>Synchronization framework</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Testing</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/graphics/implement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/implement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/implement" ><span class="devsite-nav-text" tooltip>Implementation testing</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/cts-integration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/cts-integration" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/cts-integration" ><span class="devsite-nav-text" tooltip>Integrate with Android CTS</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/deqp-testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/deqp-testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/deqp-testing" ><span class="devsite-nav-text" tooltip>drawElements Quality Program testing</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/graphics/unsignaled-buffer-latch" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/unsignaled-buffer-latch" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/unsignaled-buffer-latch" ><span class="devsite-nav-text" tooltip>Unsignaled buffer latching with AutoSingleLayer</span></a></li><li class="devsite-nav-item"><a href="/docs/core/graphics/new-pixel-formats" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/graphics/new-pixel-formats" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/graphics/new-pixel-formats" ><span class="devsite-nav-text" tooltip>Add new pixel formats to Android</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Interaction</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/interaction" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Input</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/interaction/input" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/input" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/input" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/input/key-layout-files" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/input/key-layout-files" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/input/key-layout-files" ><span class="devsite-nav-text" tooltip>Key layout files</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/input/key-character-map-files" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/input/key-character-map-files" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/input/key-character-map-files" ><span class="devsite-nav-text" tooltip>Key character map files</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/input/input-device-configuration-files" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/input/input-device-configuration-files" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/input/input-device-configuration-files" ><span class="devsite-nav-text" tooltip>Input device configuration files</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/input/migration-guide" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/input/migration-guide" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/input/migration-guide" ><span class="devsite-nav-text" tooltip>Migration guide</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/input/keyboard-devices" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/input/keyboard-devices" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/input/keyboard-devices" ><span class="devsite-nav-text" tooltip>Keyboard devices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/input/touch-devices" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/input/touch-devices" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/input/touch-devices" ><span class="devsite-nav-text" tooltip>Touch devices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/input/getevent" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/input/getevent" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/input/getevent" ><span class="devsite-nav-text" tooltip>getevent tool</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/input/validate-keymaps" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/input/validate-keymaps" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/input/validate-keymaps" ><span class="devsite-nav-text" tooltip>validatekeymaps tool</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Haptics</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/interaction/haptics" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/haptics" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/haptics" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/haptics/haptics-implement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/haptics/haptics-implement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/haptics/haptics-implement" ><span class="devsite-nav-text" tooltip>Implement haptics</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/haptics/haptics-ux-foundation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/haptics/haptics-ux-foundation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/haptics/haptics-ux-foundation" ><span class="devsite-nav-text" tooltip>UX foundation for haptic framework</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/haptics/haptics-ux-design" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/haptics/haptics-ux-design" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/haptics/haptics-ux-design" ><span class="devsite-nav-text" tooltip>Haptics UX design</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Hardware assessment</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/interaction/haptics/hardware" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/haptics/hardware" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/haptics/hardware" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/haptics/test-equipment" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/haptics/test-equipment" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/haptics/test-equipment" ><span class="devsite-nav-text" tooltip>Set up the testing equipment</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/haptics/test-software" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/haptics/test-software" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/haptics/test-software" ><span class="devsite-nav-text" tooltip>Set up the test software</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/haptics/measure" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/haptics/measure" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/haptics/measure" ><span class="devsite-nav-text" tooltip>Measure and record target effects</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/haptics/analyze" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/haptics/analyze" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/haptics/analyze" ><span class="devsite-nav-text" tooltip>Analyze the waveform</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/haptics/compare" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/haptics/compare" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/haptics/compare" ><span class="devsite-nav-text" tooltip>Compare results using the performance map</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Neural Networks</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/interaction/neural-networks" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/neural-networks" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/neural-networks" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/neural-networks/burst-executions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/neural-networks/burst-executions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/neural-networks/burst-executions" ><span class="devsite-nav-text" tooltip>Burst executions and fast message queues</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/neural-networks/compilation-caching" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/neural-networks/compilation-caching" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/neural-networks/compilation-caching" ><span class="devsite-nav-text" tooltip>Compilation caching</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/neural-networks/control-flow" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/neural-networks/control-flow" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/neural-networks/control-flow" ><span class="devsite-nav-text" tooltip>Control flow</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/neural-networks/device-discovery" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/neural-networks/device-discovery" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/neural-networks/device-discovery" ><span class="devsite-nav-text" tooltip>Device discovery and assignment</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/neural-networks/memory-pools" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/neural-networks/memory-pools" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/neural-networks/memory-pools" ><span class="devsite-nav-text" tooltip>Memory pools</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/neural-networks/best-practices" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/neural-networks/best-practices" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/neural-networks/best-practices" ><span class="devsite-nav-text" tooltip>NNAPI driver implementation best practices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/neural-networks/quality-of-service" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/neural-networks/quality-of-service" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/neural-networks/quality-of-service" ><span class="devsite-nav-text" tooltip>Quality of service</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/neural-networks/vendor-extensions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/neural-networks/vendor-extensions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/neural-networks/vendor-extensions" ><span class="devsite-nav-text" tooltip>Vendor extensions</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Peripherals</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Audio accessories</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/audio" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/audio" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/audio" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>3.5 mm headset</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/headset/plug-headset-spec" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/headset/plug-headset-spec" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/headset/plug-headset-spec" ><span class="devsite-nav-text" tooltip>Headset spec</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/headset/jack-headset-spec" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/headset/jack-headset-spec" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/headset/jack-headset-spec" ><span class="devsite-nav-text" tooltip>Headset jack device spec</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>USB headset</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/headset/usb-headset-spec" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/headset/usb-headset-spec" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/headset/usb-headset-spec" ><span class="devsite-nav-text" tooltip>Headset spec</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/headset/usb-adapter" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/headset/usb-adapter" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/headset/usb-adapter" ><span class="devsite-nav-text" tooltip>Adapter spec</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/headset/usb-device" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/headset/usb-device" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/headset/usb-device" ><span class="devsite-nav-text" tooltip>Device spec</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/headset/expected-behavior" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/headset/expected-behavior" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/headset/expected-behavior" ><span class="devsite-nav-text" tooltip>Headset expected behavior</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/headset/testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/headset/testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/headset/testing" ><span class="devsite-nav-text" tooltip>Headset testing</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Custom accessories</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/custom" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/custom" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/custom" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Android Open Accessory</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/protocol" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/protocol" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/protocol" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/aoa2" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/aoa2" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/aoa2" ><span class="devsite-nav-text" tooltip>AOA 2.0</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/aoa" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/aoa" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/aoa" ><span class="devsite-nav-text" tooltip>AOA 1.0</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/disable-signaling" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/disable-signaling" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/disable-signaling" ><span class="devsite-nav-text" tooltip>Disable data signaling over USB</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/interaction/accessories/stylus" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/accessories/stylus" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/accessories/stylus" ><span class="devsite-nav-text" tooltip>Stylus</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Sensors</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/sensor-stack" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/sensor-stack" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/sensor-stack" ><span class="devsite-nav-text" tooltip>Sensor stack</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/sensor-types" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/sensor-types" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/sensor-types" ><span class="devsite-nav-text" tooltip>Sensor types</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/interaction" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/interaction" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/interaction" ><span class="devsite-nav-text" tooltip>Interaction</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/head-tracker-hid-protocol" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/head-tracker-hid-protocol" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/head-tracker-hid-protocol" ><span class="devsite-nav-text" tooltip>Head tracker HID protocol</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Power</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/batching" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/batching" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/batching" ><span class="devsite-nav-text" tooltip>Batching</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/power-use" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/power-use" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/power-use" ><span class="devsite-nav-text" tooltip>Power consumption</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Modes</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/report-modes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/report-modes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/report-modes" ><span class="devsite-nav-text" tooltip>Reporting modes</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/suspend-mode" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/suspend-mode" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/suspend-mode" ><span class="devsite-nav-text" tooltip>Suspend mode</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/sensors-off" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/sensors-off" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/sensors-off" ><span class="devsite-nav-text" tooltip>Sensors off</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Sensors HAL</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/sensors-aidl-hal" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/sensors-aidl-hal" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/sensors-aidl-hal" ><span class="devsite-nav-text" tooltip>Sensors AIDL HAL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/sensors-multihal" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/sensors-multihal" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/sensors-multihal" ><span class="devsite-nav-text" tooltip>Sensors Multi-HAL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/sensors-hal2" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/sensors-hal2" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/sensors-hal2" ><span class="devsite-nav-text" tooltip>Sensors HAL 2.0</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/hal-interface" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/hal-interface" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/hal-interface" ><span class="devsite-nav-text" tooltip>Sensors HAL 1.0</span></a></li><li class="devsite-nav-item"><a href="/docs/core/interaction/sensors/versioning" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/sensors/versioning" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/sensors/versioning" ><span class="devsite-nav-text" tooltip>HAL version deprecation</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Context Hub Runtime Environment</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/interaction/contexthub" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/interaction/contexthub" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/interaction/contexthub" ><span class="devsite-nav-text" tooltip>Overview</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Media</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/media" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/media/media-modules" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media/media-modules" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media/media-modules" ><span class="devsite-nav-text" tooltip>Media modules</span></a></li><li class="devsite-nav-item"><a href="/docs/core/media/media-provider" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media/media-provider" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media/media-provider" ><span class="devsite-nav-text" tooltip>MediaProvider module</span></a></li><li class="devsite-nav-item"><a href="/docs/core/media/updatable-media" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media/updatable-media" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media/updatable-media" ><span class="devsite-nav-text" tooltip>Customize media components</span></a></li><li class="devsite-nav-item"><a href="/docs/core/media/low-latency-media" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media/low-latency-media" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media/low-latency-media" ><span class="devsite-nav-text" tooltip>Low-latency decoding in MediaCodec</span></a></li><li class="devsite-nav-item"><a href="/docs/core/media/framework-hardening" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media/framework-hardening" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media/framework-hardening" ><span class="devsite-nav-text" tooltip>Media framework hardening</span></a></li><li class="devsite-nav-item"><a href="/docs/core/media/soc" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media/soc" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media/soc" ><span class="devsite-nav-text" tooltip>SoC vendor dependencies</span></a></li><li class="devsite-nav-item"><a href="/docs/core/media/oem" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media/oem" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media/oem" ><span class="devsite-nav-text" tooltip>OEM dependencies</span></a></li><li class="devsite-nav-item"><a href="/docs/core/media/drm" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media/drm" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media/drm" ><span class="devsite-nav-text" tooltip>DRM</span></a></li><li class="devsite-nav-item"><a href="/docs/core/media/media-transcoding" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media/media-transcoding" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media/media-transcoding" ><span class="devsite-nav-text" tooltip>Compatible media transcoding</span></a></li><li class="devsite-nav-item"><a href="/docs/core/media/encoding-stats" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media/encoding-stats" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media/encoding-stats" ><span class="devsite-nav-text" tooltip>Export video encoding statistics</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/media/roi" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/media/roi" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/media/roi" ><span class="devsite-nav-text" tooltip>OEM guidance for RoI implementation</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Performance</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/perf" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/apk-caching" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/apk-caching" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/apk-caching" ><span class="devsite-nav-text" tooltip>APK caching</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/cached-apps-freezer" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/cached-apps-freezer" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/cached-apps-freezer" ><span class="devsite-nav-text" tooltip>Cached apps freezer</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/boot-times" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/boot-times" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/boot-times" ><span class="devsite-nav-text" tooltip>Optimize boot times</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Health</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/perf/health" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/health" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/health" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/health/implementation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/health/implementation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/health/implementation" ><span class="devsite-nav-text" tooltip>Implement Health 2.0</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/health/implementation-2-1" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/health/implementation-2-1" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/health/implementation-2-1" ><span class="devsite-nav-text" tooltip>Implement Health 2.1</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/health/deprecation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/health/deprecation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/health/deprecation" ><span class="devsite-nav-text" tooltip>Deprecate health@1.0</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/perf/cgroups" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/cgroups" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/cgroups" ><span class="devsite-nav-text" tooltip>Cgroup abstraction layer</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/lmkd" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/lmkd" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/lmkd" ><span class="devsite-nav-text" tooltip>Low memory killer daemon</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/autofdo" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/autofdo" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/autofdo" ><span class="devsite-nav-text" tooltip>Automatic Feedback-Directed Optimization (12 or higher)</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/pgo" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/pgo" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/pgo" ><span class="devsite-nav-text" tooltip>Use profile-guided optimization</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/task-snapshots" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/task-snapshots" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/task-snapshots" ><span class="devsite-nav-text" tooltip>Task snapshots</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/compatibility-wal" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/compatibility-wal" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/compatibility-wal" ><span class="devsite-nav-text" tooltip>Compatibility write-ahead logging</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/hiber" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/hiber" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/hiber" ><span class="devsite-nav-text" tooltip>App hibernation</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/boost" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/boost" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/boost" ><span class="devsite-nav-text" tooltip>Performance boost for games</span></a></li><li class="devsite-nav-item"><a href="/docs/core/perf/mmevents-stats" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/perf/mmevents-stats" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/perf/mmevents-stats" ><span class="devsite-nav-text" tooltip>MM events historical memory statistics</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Permissions</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/permissions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/ambient" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/ambient" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/ambient" ><span class="devsite-nav-text" tooltip>Ambient capabilities</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/background-location-access" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/background-location-access" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/background-location-access" ><span class="devsite-nav-text" tooltip>Background location access reminder</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/contacts-affinities" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/contacts-affinities" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/contacts-affinities" ><span class="devsite-nav-text" tooltip>Contacts provider and affinities</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/filesystem" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/filesystem" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/filesystem" ><span class="devsite-nav-text" tooltip>Discretionary access control</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/immutable-device-ids" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/immutable-device-ids" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/immutable-device-ids" ><span class="devsite-nav-text" tooltip>Immutable device IDs</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/namespaces_libraries" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/namespaces_libraries" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/namespaces_libraries" ><span class="devsite-nav-text" tooltip>Namespaces for native libraries</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/perms-allowlist" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/perms-allowlist" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/perms-allowlist" ><span class="devsite-nav-text" tooltip>Privileged permission allowlist</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/preinstalled-packages" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/preinstalled-packages" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/preinstalled-packages" ><span class="devsite-nav-text" tooltip>Preinstalled system packages</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Privacy indicators</span> </div></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/permissions/platform-signed-shared-uid-allowlist" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/platform-signed-shared-uid-allowlist" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/platform-signed-shared-uid-allowlist" ><span class="devsite-nav-text" tooltip>Platform-signed shared UID allowlist</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/privacy-indicators" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/privacy-indicators" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/privacy-indicators" ><span class="devsite-nav-text" tooltip>Privacy indicators</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/restrict-opportunistic-locations" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/restrict-opportunistic-locations" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/restrict-opportunistic-locations" ><span class="devsite-nav-text" tooltip>Restrict opportunistic locations</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/restricted-screen-reading" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/restricted-screen-reading" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/restricted-screen-reading" ><span class="devsite-nav-text" tooltip>Restricted screen reading</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/permissions/android-roles" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/android-roles" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/android-roles" ><span class="devsite-nav-text" tooltip>Android roles</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/runtime_perms" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/runtime_perms" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/runtime_perms" ><span class="devsite-nav-text" tooltip>Runtime permissions</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/permissions/signature-permission-allowlist" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/signature-permission-allowlist" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/signature-permission-allowlist" ><span class="devsite-nav-text" tooltip>Signature permission allowlist</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/tristate-perms" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/tristate-perms" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/tristate-perms" ><span class="devsite-nav-text" tooltip>Tristate location permissions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/usb-hal" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/usb-hal" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/usb-hal" ><span class="devsite-nav-text" tooltip>Implement USB HAL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/app-streaming" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/app-streaming" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/app-streaming" ><span class="devsite-nav-text" tooltip>Companion app streaming</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/fsi-limits" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/fsi-limits" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/fsi-limits" ><span class="devsite-nav-text" tooltip>Full-screen intent limits</span></a></li><li class="devsite-nav-item"><a href="/docs/core/permissions/capture-content" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/capture-content" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/capture-content" ><span class="devsite-nav-text" tooltip>Capture Content for Notes</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Power</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/power" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/mgmt" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/mgmt" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/mgmt" ><span class="devsite-nav-text" tooltip>Power management</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/thermal-mitigation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/thermal-mitigation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/thermal-mitigation" ><span class="devsite-nav-text" tooltip>Thermal mitigation</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/power-stats-hal" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/power-stats-hal" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/power-stats-hal" ><span class="devsite-nav-text" tooltip>Power stats HAL</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/app_mgmt" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/app_mgmt" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/app_mgmt" ><span class="devsite-nav-text" tooltip>App power management</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/platform_mgmt" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/platform_mgmt" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/platform_mgmt" ><span class="devsite-nav-text" tooltip>Platform power management with Doze</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/performance" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/performance" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/performance" ><span class="devsite-nav-text" tooltip>Performance management</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/trackers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/trackers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/trackers" ><span class="devsite-nav-text" tooltip>App background behavior trackers</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/batteryless" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/batteryless" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/batteryless" ><span class="devsite-nav-text" tooltip>Support batteryless devices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/component" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/component" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/component" ><span class="devsite-nav-text" tooltip>Measure component power</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/device" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/device" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/device" ><span class="devsite-nav-text" tooltip>Measure device power</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/values" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/values" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/values" ><span class="devsite-nav-text" tooltip>Measure power values</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/routine-battery-saver" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/routine-battery-saver" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/routine-battery-saver" ><span class="devsite-nav-text" tooltip>Routine battery saver</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/tv-standby" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/tv-standby" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/tv-standby" ><span class="devsite-nav-text" tooltip>TV standby</span></a></li><li class="devsite-nav-item"><a href="/docs/core/power/systemsuspend" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/power/systemsuspend" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/power/systemsuspend" ><span class="devsite-nav-text" tooltip>SystemSuspend service</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Runtime</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/runtime" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/runtime" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/runtime" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/runtime/art-class-loader-context" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/runtime/art-class-loader-context" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/runtime/art-class-loader-context" ><span class="devsite-nav-text" tooltip>Dexpreopt and <uses-library> checks</span></a></li><li class="devsite-nav-item"><a href="/docs/core/runtime/improvements" 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tooltip>Autoenable USB debugging on user builds</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/development/android-test-station/ats-uicd" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/development/android-test-station/ats-uicd" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/development/android-test-station/ats-uicd" ><span class="devsite-nav-text" tooltip>Run UIConductor tests</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/development/android-test-station/ats-api" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/development/android-test-station/ats-api" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/development/android-test-station/ats-api" ><span class="devsite-nav-text" tooltip>API</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/development/android-test-station/ats-release-notes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/development/android-test-station/ats-release-notes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/development/android-test-station/ats-release-notes" ><span class="devsite-nav-text" tooltip>Release notes</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/development/android-test-station/faq" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/development/android-test-station/faq" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/development/android-test-station/faq" ><span class="devsite-nav-text" tooltip>FAQ</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Vendor Test Suite (VTS)</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/gtest" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/gtest" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/gtest" ><span class="devsite-nav-text" tooltip>Parameterized GTest for HAL testing</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/setup11" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/setup11" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/setup11" ><span class="devsite-nav-text" tooltip>Test setup</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/gsi" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/gsi" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/gsi" ><span class="devsite-nav-text" tooltip>Generic system image (GSI)</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Vendor Test Suite (VTS) 10</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/index10" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/index10" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/index10" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/vts-video" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/vts-video" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/vts-video" ><span class="devsite-nav-text" tooltip>Video tutorials</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/systems" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/systems" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/systems" ><span class="devsite-nav-text" tooltip>Systems testing with VTS</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Test framework</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/vts/shell-commands" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/shell-commands" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/shell-commands" ><span class="devsite-nav-text" tooltip>Device shell commands</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/test-templates" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/test-templates" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/test-templates" ><span class="devsite-nav-text" tooltip>Test templates</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/sna-hal-testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/sna-hal-testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/sna-hal-testing" ><span class="devsite-nav-text" tooltip>Service name aware HAL testing</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/hal-testability" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/hal-testability" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/hal-testability" ><span class="devsite-nav-text" tooltip>HAL testability check</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/multi-device-testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/multi-device-testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/multi-device-testing" ><span class="devsite-nav-text" tooltip>Multi-device testing</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/vts-on-gsi" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/vts-on-gsi" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/vts-on-gsi" ><span class="devsite-nav-text" tooltip>VTS with debug ramdisk</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>VTS Dashboard</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/vts/setup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/setup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/setup" ><span class="devsite-nav-text" tooltip>Setup</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/database" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/database" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/database" ><span class="devsite-nav-text" tooltip>Database</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/ui" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/ui" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/ui" ><span class="devsite-nav-text" tooltip>User interface</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Lab infrastructure</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/vts/automated-test-infra" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/automated-test-infra" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/automated-test-infra" ><span class="devsite-nav-text" tooltip>Automated testing infrastructure</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/host-controller" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/host-controller" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/host-controller" ><span class="devsite-nav-text" tooltip>Host controller architecture</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/tests/vts/performance" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/vts/performance" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/vts/performance" ><span class="devsite-nav-text" tooltip>Performance testing</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Trade Federation (TF) test harness</span> </div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Get started</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/fundamentals" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/fundamentals" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/fundamentals" ><span class="devsite-nav-text" tooltip>Start</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/fundamentals/machine_setup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/fundamentals/machine_setup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/fundamentals/machine_setup" ><span class="devsite-nav-text" tooltip>Development environment</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/fundamentals/devices" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/fundamentals/devices" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/fundamentals/devices" ><span class="devsite-nav-text" tooltip>Work with devices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/fundamentals/console" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/fundamentals/console" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/fundamentals/console" ><span class="devsite-nav-text" tooltip>Console</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/fundamentals/lifecycle" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/fundamentals/lifecycle" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/fundamentals/lifecycle" ><span class="devsite-nav-text" tooltip>Test lifecycle</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/fundamentals/options" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/fundamentals/options" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/fundamentals/options" ><span class="devsite-nav-text" tooltip>Option handling</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/fundamentals/full_example" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/fundamentals/full_example" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/fundamentals/full_example" ><span class="devsite-nav-text" tooltip>End-to-end example</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Write and run Tradefed tests</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Test through Tradefed</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/new-test-runner" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/new-test-runner" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/new-test-runner" ><span class="devsite-nav-text" tooltip>Write a test runner</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/sharded-runner" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/sharded-runner" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/sharded-runner" ><span class="devsite-nav-text" tooltip>Write a sharded IRemoteTest test runner</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/host-driven-test" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/host-driven-test" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/host-driven-test" ><span class="devsite-nav-text" tooltip>Write a host-driven test</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/host-side-deviceless-test" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/host-side-deviceless-test" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/host-side-deviceless-test" ><span class="devsite-nav-text" tooltip>Write a host-side deviceless test</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/report-metrics" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/report-metrics" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/report-metrics" ><span class="devsite-nav-text" tooltip>Report metrics or data from a test</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/auto-retry" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/auto-retry" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/auto-retry" ><span class="devsite-nav-text" tooltip>Automatic test retry</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/retry-isolation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/retry-isolation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/retry-isolation" ><span class="devsite-nav-text" tooltip>Retry isolation</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/log-on-failure" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/log-on-failure" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/log-on-failure" ><span class="devsite-nav-text" tooltip>Automated log on failure collection</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/dry-run" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/dry-run" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/dry-run" ><span class="devsite-nav-text" tooltip>Dry run a configuration</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/instrumentation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/instrumentation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/instrumentation" ><span class="devsite-nav-text" tooltip>Run instrumentation tests from APKs</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/shell-test" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/shell-test" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/shell-test" ><span class="devsite-nav-text" tooltip>Write a shell test</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-tf/global-filters" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-tf/global-filters" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-tf/global-filters" ><span class="devsite-nav-text" tooltip>Global filters</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Test through suites</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-suite" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-suite" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-suite" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-suite/setup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-suite/setup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-suite/setup" ><span class="devsite-nav-text" tooltip>Set up suites</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-suite/option-passing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-suite/option-passing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-suite/option-passing" ><span class="devsite-nav-text" tooltip>Pass options and filters</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-suite/system-status-checker" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-suite/system-status-checker" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-suite/system-status-checker" ><span class="devsite-nav-text" tooltip>Check system status</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-suite/android-test-structure" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-suite/android-test-structure" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-suite/android-test-structure" ><span class="devsite-nav-text" tooltip>AndroidTest.xml structure</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-suite/android-test-tuning" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-suite/android-test-tuning" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-suite/android-test-tuning" ><span class="devsite-nav-text" tooltip>Configure sharding</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-suite/module-controller" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-suite/module-controller" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-suite/module-controller" ><span class="devsite-nav-text" tooltip>Employ module controllers</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-suite/suite-retry" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-suite/suite-retry" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-suite/suite-retry" ><span class="devsite-nav-text" tooltip>Use suite retry</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/testing/through-suite/multi-devices-suites" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/testing/through-suite/multi-devices-suites" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/testing/through-suite/multi-devices-suites" ><span class="devsite-nav-text" tooltip>Multi-device modules</span></a></li></ul></div></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Develop TF</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/development" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/development" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/development" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/development/guidelines" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/development/guidelines" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/development/guidelines" ><span class="devsite-nav-text" tooltip>Test harness guidelines</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/development/eclipse" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/development/eclipse" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/development/eclipse" ><span class="devsite-nav-text" tooltip>Set up Eclipse</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/development/tf-tests" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/development/tf-tests" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/development/tf-tests" ><span class="devsite-nav-text" tooltip>Include unit and functional tests</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/development/error-prone" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/development/error-prone" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/development/error-prone" ><span class="devsite-nav-text" tooltip>Run Error Prone bug checker</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/development/contribute-noncore" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/development/contribute-noncore" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/development/contribute-noncore" ><span class="devsite-nav-text" tooltip>Contribute non-core code</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Architecture</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>XML configuration</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/xml-config" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/xml-config" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/xml-config" ><span class="devsite-nav-text" tooltip>High-level structure</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/xml-config/template-include" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/xml-config/template-include" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/xml-config/template-include" ><span class="devsite-nav-text" tooltip>Templates and includes</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/xml-config/config-object" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/xml-config/config-object" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/xml-config/config-object" ><span class="devsite-nav-text" tooltip>Configuration object</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Global Configuration</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/advanced/global-config" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/advanced/global-config" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/advanced/global-config" ><span class="devsite-nav-text" tooltip>File options</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/host-setup/host-options" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/host-setup/host-options" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/host-setup/host-options" ><span class="devsite-nav-text" tooltip>Host options</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Advanced concepts</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/advanced/keystore" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/advanced/keystore" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/advanced/keystore" ><span class="devsite-nav-text" tooltip>Keystore secrets</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/advanced/command-scheduler" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/advanced/command-scheduler" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/advanced/command-scheduler" ><span class="devsite-nav-text" tooltip>Test Command Scheduler</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/advanced/test-runner" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/advanced/test-runner" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/advanced/test-runner" ><span class="devsite-nav-text" tooltip>Structure of a test runner</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/advanced/sharding" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/advanced/sharding" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/advanced/sharding" ><span class="devsite-nav-text" tooltip>Test sharding</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/advanced/multi-device" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/advanced/multi-device" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/advanced/multi-device" ><span class="devsite-nav-text" tooltip>Run tests with multiple devices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/advanced/scripting-sl4a" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/advanced/scripting-sl4a" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/advanced/scripting-sl4a" ><span class="devsite-nav-text" tooltip>Use Scripting Layer</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/advanced/protocols-global-config" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/advanced/protocols-global-config" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/advanced/protocols-global-config" ><span class="devsite-nav-text" tooltip>Load protocols with global config</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Device Manager</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/device-manager" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/device-manager" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/device-manager" ><span class="devsite-nav-text" tooltip>Device states</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/device-manager/device-allocation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/device-manager/device-allocation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/device-manager/device-allocation" ><span class="devsite-nav-text" tooltip>Device allocation</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/device-manager/device-detection" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/device-manager/device-detection" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/device-manager/device-detection" ><span class="devsite-nav-text" tooltip>Device detection</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Build</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/build-provider" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/build-provider" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/build-provider" ><span class="devsite-nav-text" tooltip>Build providers</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/build-provider/build-info" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/build-provider/build-info" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/build-provider/build-info" ><span class="devsite-nav-text" tooltip>BuildInfo</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Device setup</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/target-preparer" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/target-preparer" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/target-preparer" ><span class="devsite-nav-text" tooltip>Target preparers</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/target-preparer/multi-target" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/target-preparer/multi-target" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/target-preparer/multi-target" ><span class="devsite-nav-text" tooltip>Multi-target preparers</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Results</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/result-reporter" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/result-reporter" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/result-reporter" ><span class="devsite-nav-text" tooltip>Create a result reporter</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/result-reporter/log-reporter" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/result-reporter/log-reporter" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/result-reporter/log-reporter" ><span class="devsite-nav-text" tooltip>Handle log files</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/result-reporter/summary" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/result-reporter/summary" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/result-reporter/summary" ><span class="devsite-nav-text" tooltip>Result reporter summary</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Metrics</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/metrics-collector" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/metrics-collector" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/metrics-collector" ><span class="devsite-nav-text" tooltip>Host-driven metrics collector</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/tradefed/architecture/metrics-collector/device-collector" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/tradefed/architecture/metrics-collector/device-collector" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/tradefed/architecture/metrics-collector/device-collector" ><span class="devsite-nav-text" tooltip>Device-side metric collection</span></a></li></ul></div></li></ul></div></li><li class="devsite-nav-item"><a href="/reference/tradefed/packages" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /reference/tradefed/packages" track-type="bookNav" track-name="click" track-metadata-eventdetail="/reference/tradefed/packages" ><span class="devsite-nav-text" tooltip>Package index</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Multidevice testing with Mobly</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/tests/mobly" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/mobly" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/mobly" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-heading"><div class="devsite-nav-title devsite-nav-title-no-path"> <span class="devsite-nav-text" tooltip>Debug native platform code</span> </div></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/read-bug-reports" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/read-bug-reports" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/read-bug-reports" ><span class="devsite-nav-text" tooltip>Read bug reports</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/understanding-logging" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/understanding-logging" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/understanding-logging" ><span class="devsite-nav-text" tooltip>Understand logging</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/scoped-vendor-logging" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/scoped-vendor-logging" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/scoped-vendor-logging" ><span class="devsite-nav-text" tooltip>Implement scoped vendor logging</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/native-crash" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/native-crash" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/native-crash" ><span class="devsite-nav-text" tooltip>Diagnose native crashes</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Evaluate performance</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/debug/eval_perf" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/eval_perf" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/eval_perf" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/systrace" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/systrace" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/systrace" ><span class="devsite-nav-text" tooltip>Understand systrace</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/ftrace" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/ftrace" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/ftrace" ><span class="devsite-nav-text" tooltip>Use ftrace</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/jank_capacity" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/jank_capacity" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/jank_capacity" ><span class="devsite-nav-text" tooltip>Identify capacity-related jank</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/jank_jitter" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/jank_jitter" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/jank_jitter" ><span class="devsite-nav-text" tooltip>Identify jitter-related jank</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Feature implementation</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/tests/debug/harness" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/harness" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/harness" ><span class="devsite-nav-text" tooltip>Implement Test Harness Mode</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/gdb" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/gdb" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/gdb" ><span class="devsite-nav-text" tooltip>Use debuggers</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/native-memory" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/native-memory" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/native-memory" ><span class="devsite-nav-text" tooltip>Debug native memory use</span></a></li><li class="devsite-nav-item"><a href="/docs/core/connect/connect_tests" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/connect/connect_tests" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/connect/connect_tests" ><span class="devsite-nav-text" tooltip>Network connectivity tests</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/rescue-party" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/rescue-party" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/rescue-party" ><span class="devsite-nav-text" tooltip>Rescue party</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/storaged" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/storaged" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/storaged" ><span class="devsite-nav-text" tooltip>Implement storaged</span></a></li><li class="devsite-nav-item"><a href="/docs/core/tests/debug/strace" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/tests/debug/strace" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/tests/debug/strace" ><span class="devsite-nav-text" tooltip>Use strace</span></a></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Updates</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/ota" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>APEX</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/ota/apex" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/apex" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/apex" ><span class="devsite-nav-text" tooltip>APEX file format</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/vendor-apex" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/vendor-apex" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/vendor-apex" ><span class="devsite-nav-text" tooltip>Vendor APEX</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/ota/tools" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/tools" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/tools" ><span class="devsite-nav-text" tooltip>Build OTA packages</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/sign_builds" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/sign_builds" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/sign_builds" ><span class="devsite-nav-text" tooltip>Sign builds for release</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/reduce_size" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/reduce_size" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/reduce_size" ><span class="devsite-nav-text" tooltip>Reduce OTA size</span></a></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Virtual A/B</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/ota/virtual_ab" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/virtual_ab" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/virtual_ab" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item devsite-nav-new"><a href="/docs/core/ota/virtual_ab/implement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/virtual_ab/implement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/virtual_ab/implement" ><span class="devsite-nav-text" tooltip>Implement Virtual A/B</span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/virtual_ab/implement-patches" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/virtual_ab/implement-patches" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/virtual_ab/implement-patches" ><span class="devsite-nav-text" tooltip>Implement Virtual A/B - patches</span></a></li><li class="devsite-nav-item devsite-nav-new"><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip></span><span class="devsite-nav-icon material-icons" data-icon="new" data-title="New!" aria-hidden="true"></span> </div></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Legacy A/B system updates</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/ota/ab" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/ab" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/ab" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/ab/ab_implement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/ab/ab_implement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/ab/ab_implement" ><span class="devsite-nav-text" tooltip>Implement A/B updates</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/ab/ab_faqs" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/ab/ab_faqs" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/ab/ab_faqs" ><span class="devsite-nav-text" tooltip>Frequently asked questions</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>(Deprecated) Non-A/B system updates</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/ota/nonab" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/nonab" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/nonab" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/nonab/block" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/nonab/block" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/nonab/block" ><span class="devsite-nav-text" tooltip>Block-based OTA</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/nonab/inside_packages" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/nonab/inside_packages" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/nonab/inside_packages" ><span class="devsite-nav-text" tooltip>Inside OTA packages</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/nonab/device_code" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/nonab/device_code" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/nonab/device_code" ><span class="devsite-nav-text" tooltip>Device-specific code</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Dynamic partitions</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/ota/dynamic_partitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/dynamic_partitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/dynamic_partitions" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/dynamic_partitions/implement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/dynamic_partitions/implement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/dynamic_partitions/implement" ><span class="devsite-nav-text" tooltip>Implement dynamic partitions</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/dynamic_partitions/ab_launch" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/dynamic_partitions/ab_launch" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/dynamic_partitions/ab_launch" ><span class="devsite-nav-text" tooltip>OTA for A/B devices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/dynamic_partitions/ab_legacy" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/dynamic_partitions/ab_legacy" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/dynamic_partitions/ab_legacy" ><span class="devsite-nav-text" tooltip>OTA for legacy A/B devices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/dynamic_partitions/nonab" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/dynamic_partitions/nonab" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/dynamic_partitions/nonab" ><span class="devsite-nav-text" tooltip>OTA for non-A/B devices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/dynamic_partitions/how_to_size_super" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/dynamic_partitions/how_to_size_super" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/dynamic_partitions/how_to_size_super" ><span class="devsite-nav-text" tooltip>Size the super partition</span></a></li></ul></div></li><li class="devsite-nav-item devsite-nav-expandable"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Virtual A/B</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/ota/virtual_ab" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/virtual_ab" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/virtual_ab" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/virtual_ab/implement" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/virtual_ab/implement" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/virtual_ab/implement" ><span class="devsite-nav-text" tooltip>Implement Virtual A/B</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/virtual_ab/implement-patches" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/virtual_ab/implement-patches" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/virtual_ab/implement-patches" ><span class="devsite-nav-text" tooltip>Implement Virtual A/B - patches</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/docs/core/permissions/timezone-rules" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/permissions/timezone-rules" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/permissions/timezone-rules" ><span class="devsite-nav-text" tooltip>Time zone rules</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/user-data-checkpoint" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/user-data-checkpoint" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/user-data-checkpoint" ><span class="devsite-nav-text" tooltip>User data checkpoint</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/dynamic-system-updates" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/dynamic-system-updates" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/dynamic-system-updates" ><span class="devsite-nav-text" tooltip>Dynamic system updates</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/resume-on-reboot" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/resume-on-reboot" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/resume-on-reboot" ><span class="devsite-nav-text" tooltip>Resume-on-Reboot</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/upgrade-party" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" 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class="devsite-nav-item"><a href="/docs/core/ota/modular-system" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/adservices" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/adservices" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/adservices" ><span class="devsite-nav-text" tooltip>AdServices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/adbd" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: 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class="devsite-nav-text" tooltip>AppSearch</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/art" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/art" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/art" ><span class="devsite-nav-text" tooltip>ART</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/bluetooth" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/bluetooth" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/bluetooth" ><span class="devsite-nav-text" tooltip>Bluetooth</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/cellbroadcast" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/cellbroadcast" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/cellbroadcast" ><span class="devsite-nav-text" tooltip>CellBroadcast</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/config-infrastructure" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/config-infrastructure" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/config-infrastructure" ><span class="devsite-nav-text" tooltip>Config Infrastructure</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/conscrypt" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: 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track-metadata-eventdetail="/docs/core/ota/modular-system/dns-resolver" ><span class="devsite-nav-text" tooltip>DNS Resolver</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/documentsui" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/documentsui" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/documentsui" ><span class="devsite-nav-text" tooltip>DocumentsUI</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/extservices" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/extservices" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/extservices" ><span class="devsite-nav-text" tooltip>ExtServices</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/ipsec" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/ipsec" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/ipsec" ><span class="devsite-nav-text" tooltip>IPsec/IKEv2 Library</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/media" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/media" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/media" ><span class="devsite-nav-text" tooltip>Media</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/mediaprovider" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/mediaprovider" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/mediaprovider" ><span class="devsite-nav-text" tooltip>MediaProvider</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/metadata" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/metadata" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/metadata" ><span class="devsite-nav-text" tooltip>ModuleMetadata</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/networking" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/networking" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/networking" ><span class="devsite-nav-text" tooltip>Network Stack</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/nnapi" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/nnapi" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/nnapi" ><span class="devsite-nav-text" tooltip>NNAPI Runtime</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/ondevicepersonalization" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/ondevicepersonalization" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/ondevicepersonalization" ><span class="devsite-nav-text" tooltip>OnDevicePersonalization</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/permissioncontroller" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/permissioncontroller" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/permissioncontroller" ><span class="devsite-nav-text" tooltip>PermissionController</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/remote-key-provisioning" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/remote-key-provisioning" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/remote-key-provisioning" ><span class="devsite-nav-text" tooltip>Remote Key Provisioning</span></a></li><li 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data-label="Book nav link, pathname: /docs/core/ota/modular-system/tethering" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/tethering" ><span class="devsite-nav-text" tooltip>Tethering</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/timezone" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/timezone" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/timezone" ><span class="devsite-nav-text" tooltip>Time Zone Data</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/uwb" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/uwb" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/uwb" ><span class="devsite-nav-text" tooltip>UWB</span></a></li><li class="devsite-nav-item"><a href="/docs/core/ota/modular-system/wifi" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/ota/modular-system/wifi" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/ota/modular-system/wifi" ><span class="devsite-nav-text" tooltip>Wi-Fi</span></a></li></ul></div></li></ul></div></li> <li class="devsite-nav-item devsite-nav-expandable devsite-nav-accordion"><div class="devsite-expandable-nav"> <a class="devsite-nav-toggle" aria-hidden="true"></a><div class="devsite-nav-title devsite-nav-title-no-path" tabindex="0" role="button"> <span class="devsite-nav-text" tooltip>Virtualization</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/docs/core/virtualization" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/virtualization" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/virtualization" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/docs/core/virtualization/whyavf" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/virtualization/whyavf" track-type="bookNav" track-name="click" track-metadata-eventdetail="/docs/core/virtualization/whyavf" ><span class="devsite-nav-text" tooltip>Why AVF</span></a></li><li class="devsite-nav-item"><a href="/docs/core/virtualization/tryavf" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /docs/core/virtualization/tryavf" track-type="bookNav" track-name="click" 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has-book-nav has-sidebar > <div class="devsite-sidebar"> <div class="devsite-sidebar-content"> <devsite-toc class="devsite-nav" role="navigation" aria-label="On this page" depth="2" scrollbars ></devsite-toc> <devsite-recommendations-sidebar class="nocontent devsite-nav"> </devsite-recommendations-sidebar> </div> </div> <devsite-content> <article class="devsite-article"> <div class="devsite-article-meta nocontent" role="navigation"> <ul class="devsite-breadcrumb-list" aria-label="Breadcrumb"> <li class="devsite-breadcrumb-item "> <a href="https://source.android.com/" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Android Open Source Project" > AOSP </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a 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analytics-action-show="Callout Profile displayed" analytics-action-close="Callout Profile dismissed" analytics-label="Create Collection Callout" class="devsite-page-bookmark-tooltip nocontent" dismiss-button="true" id="devsite-collections-dropdown" dismiss-button-text="Dismiss" close-button-text="Got it"> <devsite-bookmark></devsite-bookmark> <span slot="popout-heading"> Stay organized with collections </span> <span slot="popout-contents"> Save and categorize content based on your preferences. </span> </devsite-feature-tooltip> <div class="devsite-page-title-meta"><devsite-view-release-notes></devsite-view-release-notes></div> <devsite-toc class="devsite-nav" depth="2" devsite-toc-embedded > </devsite-toc> <div class="devsite-article-body clearfix ">  <img class="attempt-right" src="/static/docs/core/graphics/images/ape-fwk-hal-graphics.png" alt="Android Graphics HAL icon"/> <p>The Android framework offers a variety of graphics rendering APIs for 2D and 3D that interact with manufacturer implementations of graphics drivers, so it is important to have a good understanding of how those APIs work at a higher level. This page introduces the graphics hardware abstraction layer (HAL) that those drivers are built on. Before continuing with this section, familiarize yourself with the following terms:</p> <devsite-filter select-el-container-id="filter2"> <div class="list"> <div> <dt id="canvas"><i>canvas (generic term), <code translate="no" dir="ltr">Canvas</code> (API element)</i></dt> <dd>A canvas is a drawing surface that handles compositing of the actual bits against a bitmap or a <a href="#surface"><code translate="no" dir="ltr">Surface</code></a> object. <code translate="no" dir="ltr">Canvas</code> has methods for standard computer drawing of bitmaps, lines, circles, rectangles, text, and so on, and is bound to a bitmap or surface. A canvas is the simplest, easiest way to draw 2D objects on the screen. The base class is <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/graphics/Canvas.html">Canvas</a></code>. <dt id="drawable"><i>drawable</i></dt> <dd>A drawable is a compiled visual resource that can be used as a background, title, or other part of the screen. A drawable is typically loaded into another UI element, for example as a background image. A drawable is not able to receive events, but does assign various other properties such as state and scheduling, to enable subclasses such as animation objects or image libraries. Many drawable objects are loaded from drawable resource files — XML or bitmap files that describe the image. Drawable resources are compiled into subclasses of <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/graphics/drawable/package-summary.html">android.graphics.drawable</a></code>. For more information about drawables and other resources, see <a href="https://developer.android.com/guide/topics/resources/providing-resources">Resources</a>. </dd> <dt id="layoutresource"><i>layout resource</i></dt> <dd>A layout resource is a XML file that describes the layout of an activity screen. For more information, see <a href="https://developer.android.com/guide/topics/resources/layout-resource.html">Layout resource</a>. </dd> <dt id="ninepatch"><i>nine-patch (9-patch, NinePatch)</i></dt> <dd>A nine-patch is a resizeable bitmap resource that can be used for backgrounds or other images on the device. For more information, see <a href="https://developer.android.com/guide/topics/resources/drawable-resource.html#NinePatch"> Nine-patch</a>. <dt id="opengles"><i>OpenGL ES</i></dt> <dd>OpenGL ES is a cross-platform API for rendering 2D and 3D graphics. Android provides OpenGL ES libraries for hardware-accelerated 3D rendering. For 2D rendering, a canvas is the simpler option. OpenGL ES is available in the <a href="https://developer.android.com/ndk">Android Native Development Kit (NDK)</a>. The <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/opengl/package-summary.html">android.opengl</a></code> and <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/javax/microedition/khronos/opengles/package-summary.html">javax.microedition.khronos.opengles</a></code> packages expose OpenGL ES functionality.</dd> <dt id="surface"><i>surface (generic term), <code translate="no" dir="ltr">Surface</code> (API element)</i></dt> <dd>A surface represents a block of memory that gets composited to the screen. A surface holds a canvas for drawing, and provides various helper methods to draw layers and resize the <code translate="no" dir="ltr">Surface</code> object. Use the <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/view/SurfaceView.html">SurfaceView</a></code> class instead of the <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/view/Surface.html">Surface</a></code> class directly. </dd> <dt id="surfaceview"><i>surface view (generic term), <code translate="no" dir="ltr">SurfaceView</code> (API element)</i></dt> <dd>A surface view is a <a href="#view"><code translate="no" dir="ltr">View</code></a> object that wraps a <code translate="no" dir="ltr">Surface</code> object for drawing, and exposes methods to specify its size and format dynamically. A surface view provides a way to draw independently of the UI thread for resource-intensive operations, such as games or camera previews, but it uses extra memory as a result. A surface view supports both canvas and OpenGL ES graphics. The base class for a <code translate="no" dir="ltr">SurfaceView</code> object is <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/view/SurfaceView.html">SurfaceView</a></code>. </dd> <dt id="theme"><i>theme</i></dt> <dd>A theme is a set of properties, such as text size and background color, bundled together to define various default display settings. Android provides a few standard themes, listed in <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/R.style.html">R.style</a></code> and prefaced with <code translate="no" dir="ltr">Theme_</code>.</dd> <dt id="view"><i>view (generic term), <code translate="no" dir="ltr">View</code> (API element)</i></dt> <dd>A view draws a rectangular area on the screen and handles click, keystroke, and other interaction events. The <code translate="no" dir="ltr">View</code> class is the base class for most layout components of an activity or dialog screen, such as text boxes and windows. A <code translate="no" dir="ltr">View</code> object receives calls from its parent object (see <a href="#viewgroup"><code translate="no" dir="ltr">ViewGroup</code></a>) to draw itself, and informs its parent object about its preferred size and located, which might not be respected by the parent. For more information, see <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/view/View.html">View</a></code>. </dd> <dt id="viewgroup"><i>view group (generic term), <code translate="no" dir="ltr">ViewGroup</code> (API element)</i></dt> <dd>A view group groups a set of child views. The view group is responsible for deciding where child views are positioned and how large they can be, as well as for calling each to draw themselves when appropriate. Some view groups are invisible and are for layout only, while others have an intrinsic UI, such as a scrolling list box. View groups are in the <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/widget/package-summary.html">widget</a></code> package, but extend the <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/view/ViewGroup.html">ViewGroup</a></code> class. </dd> <dt id="viewhierarchy"><i>view hierarchy</i></dt> <dd>A view hieararchy is an arrangement of view and view group objects that defines the user interface for each component of an app. The hierarchy consists of view groups that contain one or more child views or view groups. You can obtain a visual representation of a view hierarchy for debugging and optimization by using the <a href="https://developer.android.com/studio/profile/hierarchy-viewer.html">Hierarchy Viewer</a> that is supplied with the Android SDK.</dd> <dt id="vulcan"><i>Vulkan</i></dt> <dd><a href="/docs/core/graphics/arch-vulkan">Vulkan</a> is a low-overhead cross-platform API for high-performance 3D graphics.</dd> <dt id="widget"><i>widget</i></dt> <dd>A widget is one of a set of fully implemented view subclasses that render form elements and other UI components, such as a text box or a popup menu. Because a widget is fully implemented, it handles measuring, drawing itself, and responding to screen events. Widgets are in the <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/widget/package-summary.html">android.widget</a></code> package. </dd> <dt id="panel"><i>window (generic term), <code translate="no" dir="ltr">Window</code> (API element)</i></dt> <dd>In an Android app, a window is an object derived from the <code translate="no" dir="ltr"><a href="https://developer.android.com/reference/android/view/Window.html">Window</a></code> abstract class that specifies the elements of a generic window, such as the look and feel, title bar text, and location and content of menus. Dialogs and activities use an implementation of the <code translate="no" dir="ltr">Window</code> class to render a <code translate="no" dir="ltr">Window</code> object. You don't need to implement the <code translate="no" dir="ltr">Window</code> class or use windows in your app.</dd> </div> </dl> </div> </devsite-filter> <p>App developers draw images to the screen in three ways: with <a href="/docs/core/graphics/arch-sh#canvas">Canvas</a>, <a href="/docs/core/graphics/arch-egl-opengl"> OpenGL ES</a>, or <a href="/docs/core/graphics/arch-vulkan"> Vulkan</a>.</p> <h2 id="android-graphics-components" data-text="Android graphics components" tabindex="-1">Android graphics components</h2> <p>No matter what rendering API developers use, everything is rendered onto a surface. The surface represents the producer side of a buffer queue that is often consumed by SurfaceFlinger. Every window that is created on the Android platform is backed by a surface. All of the visible surfaces rendered are composited onto the display by SurfaceFlinger.</p> <p>The following diagram shows how the key components work together:</p> <img src="/static/docs/core/graphics/images/ape-fwk-graphics.png" alt="image rendering components"> <p class="img-caption"><strong>Figure 1.</strong> How surfaces are rendered.</p> <p>The main components are described below:</p> <h3 id="image-stream-producers" data-text="Image stream producers" tabindex="-1">Image stream producers</h3> <p>An image stream producer can be anything that produces graphic buffers for consumption. Examples include OpenGL ES, Canvas 2D, and mediaserver video decoders.</p> <h3 id="image-stream-consumers" data-text="Image stream consumers" tabindex="-1">Image stream consumers</h3> <p>The most common consumer of image streams is SurfaceFlinger, the system service that consumes the currently visible surfaces and composites them onto the display using information provided by the Window Manager. SurfaceFlinger is the only service that can modify the content of the display. SurfaceFlinger uses OpenGL and the Hardware Composer to compose a group of surfaces.</p> <p>Other OpenGL ES apps can consume image streams as well, such as the camera app consuming a camera preview image stream. Non-GL apps can be consumers too, for example the ImageReader class.</p> <h3 id="hardware-composer" data-text="Hardware Composer" tabindex="-1">Hardware Composer</h3> <p>The hardware abstraction for the display subsystem. SurfaceFlinger can delegate certain composition work to the Hardware Composer to offload work from OpenGL and the GPU. SurfaceFlinger acts as just another OpenGL ES client. So when SurfaceFlinger is actively compositing one buffer or two into a third, for instance, it is using OpenGL ES. This makes compositing lower power than having the GPU conduct all computation.</p> <p>The <a href="/docs/core/graphics/hwc">Hardware Composer HAL</a> conducts the other half of the work and is the central point for all Android graphics rendering. The Hardware Composer must support events, one of which is VSYNC (another is hotplug for plug-and-playHDMI support).</p> <h3 id="gralloc" data-text="Gralloc" tabindex="-1">Gralloc</h3> <p>The graphics memory allocator (Gralloc) is needed to allocate memory requested by image producers. For details, see <a href="/docs/core/graphics/arch-bq-gralloc">Gralloc HAL</a>. </p> <h2 id="data-flow" data-text="Data flow" tabindex="-1">Data flow</h2> <p>See the following diagram for a depiction of the Android graphics pipeline:</p> <img src="/static/docs/core/graphics/images/graphics-pipeline.png" alt="graphics data flow"> <p class="img-caption"><strong>Figure 2.</strong> Graphic data flow through Android</p> <p>The objects on the left are renderers producing graphics buffers, such as the home screen, status bar, and system UI. SurfaceFlinger is the compositor and Hardware Composer is the composer.</p> <h3 id="bufferqueue" data-text="BufferQueue" tabindex="-1">BufferQueue</h3> <p>BufferQueues provide the glue between the Android graphics components. These are a pair of queues that mediate the constant cycle of buffers from the producer to the consumer. Once the producers hand off their buffers, SurfaceFlinger is responsible for compositing everything onto the display.</p> <p>See the following diagram for the BufferQueue communication process.</p> <img src="/static/docs/core/graphics/images/bufferqueue.png" alt="BufferQueue communication process"> <p class="img-caption"><strong>Figure 3.</strong> BufferQueue communication process</p> <p>BufferQueue contains the logic that ties image stream producers and image stream consumers together. Some examples of image producers are the camera previews produced by the camera HAL or OpenGL ES games. Some examples of image consumers are SurfaceFlinger or another app that displays an OpenGL ES stream, such as the camera app displaying the camera viewfinder.</p> <p>BufferQueue is a data structure that combines a buffer pool with a queue and uses Binder IPC to pass buffers between processes. The producer interface, or what you pass to somebody who wants to generate graphic buffers, is IGraphicBufferProducer (part of <a href="http://developer.android.com/reference/android/graphics/SurfaceTexture.html">SurfaceTexture</a>). BufferQueue is often used to render to a Surface and consume with a GL Consumer, among other tasks.</p> <p>BufferQueue can operate in three different modes:</p> <p><em>Synchronous-like mode</em> - BufferQueue by default operates in a synchronous-like mode, in which every buffer that comes in from the producer goes out at the consumer. No buffer is ever discarded in this mode. And if the producer is too fast and creates buffers faster than they are being drained, it will block and wait for free buffers.</p> <p><em>Non-blocking mode</em> - BufferQueue can also operate in a non-blocking mode where it generates an error rather than waiting for a buffer in those cases. No buffer is ever discarded in this mode either. This is useful for avoiding potential deadlocks in application software that may not understand the complex dependencies of the graphics framework.</p> <p><em>Discard mode</em> - Finally, BufferQueue may be configured to discard old buffers rather than generate errors or wait. For instance, if conducting GL rendering to a texture view and drawing as quickly as possible, buffers must be dropped.</p> <p>To conduct most of this work, SurfaceFlinger acts as just another OpenGL ES client. So when SurfaceFlinger is actively compositing one buffer or two into a third, for instance, it is using OpenGL ES.</p> <p>The Hardware Composer HAL conducts the other half of the work. 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