Declare package visibility needs | App architecture

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href="/topic/libraries/architecture/saving-states" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/saving-states" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/saving-states" ><span class="devsite-nav-text" tooltip>Save UI states</span></a></li><li class="devsite-nav-item"><a href="/topic/libraries/architecture/coroutines" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/coroutines" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/coroutines" ><span class="devsite-nav-text" tooltip>Use Kotlin coroutines with lifecycle-aware components</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>Paging Library</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/topic/libraries/architecture/paging/v3-overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/paging/v3-overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/paging/v3-overview" ><span class="devsite-nav-text" tooltip>About paging</span></a></li><li class="devsite-nav-item"><a href="/topic/libraries/architecture/paging/v3-paged-data" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/paging/v3-paged-data" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/paging/v3-paged-data" ><span class="devsite-nav-text" tooltip>Load and display paged data</span></a></li><li class="devsite-nav-item"><a href="/topic/libraries/architecture/paging/v3-network-db" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/paging/v3-network-db" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/paging/v3-network-db" ><span class="devsite-nav-text" tooltip>Page from network and database</span></a></li><li class="devsite-nav-item"><a href="/topic/libraries/architecture/paging/v3-transform" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/paging/v3-transform" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/paging/v3-transform" ><span class="devsite-nav-text" tooltip>Transform data streams</span></a></li><li class="devsite-nav-item"><a href="/topic/libraries/architecture/paging/load-state" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/paging/load-state" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/paging/load-state" ><span class="devsite-nav-text" tooltip>Manage and present loading states</span></a></li><li class="devsite-nav-item"><a href="/topic/libraries/architecture/paging/test" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/paging/test" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/paging/test" ><span class="devsite-nav-text" tooltip>Test your Paging implementation</span></a></li><li class="devsite-nav-item"><a href="/topic/libraries/architecture/paging/v3-migration" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/paging/v3-migration" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/paging/v3-migration" ><span class="devsite-nav-text" tooltip>Migrate to Paging 3</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>Paging 2</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/topic/libraries/architecture/paging" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/paging" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/paging" ><span class="devsite-nav-text" tooltip>About Paging 2</span></a></li><li class="devsite-nav-item"><a href="/topic/libraries/architecture/paging/ui" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/paging/ui" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/paging/ui" ><span class="devsite-nav-text" tooltip>Display paged lists</span></a></li><li class="devsite-nav-item"><a href="/topic/libraries/architecture/paging/data" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/paging/data" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/paging/data" ><span class="devsite-nav-text" tooltip>Load paged data</span></a></li></ul></div></li></ul></div></li></ul></div></li><li class="devsite-nav-item"><a href="/topic/architecture/domain-layer" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/architecture/domain-layer" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/architecture/domain-layer" ><span class="devsite-nav-text" tooltip>Domain layer</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>Data layer libraries</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/topic/architecture/data-layer" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/architecture/data-layer" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/architecture/data-layer" ><span class="devsite-nav-text" tooltip>About the data layer</span></a></li><li class="devsite-nav-item"><a href="/topic/architecture/data-layer/offline-first" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/architecture/data-layer/offline-first" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/architecture/data-layer/offline-first" ><span class="devsite-nav-text" tooltip>Offline first</span></a></li><li class="devsite-nav-item"><a href="/topic/libraries/architecture/datastore" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/datastore" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/datastore" ><span class="devsite-nav-text" tooltip>DataStore</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>WorkManager</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/topic/libraries/architecture/workmanager" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/architecture/workmanager" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/architecture/workmanager" ><span class="devsite-nav-text" tooltip>Schedule tasks with WorkManager</span></a></li><li class="devsite-nav-item"><a href="/develop/background-work/background-tasks/persistent" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/background-work/background-tasks/persistent" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/background-work/background-tasks/persistent" ><span class="devsite-nav-text" tooltip>Get started with persistent work ⍈</span></a></li></ul></div></li></ul></div></li><li class="devsite-nav-item"><a href="/topic/libraries/app-startup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/libraries/app-startup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/libraries/app-startup" ><span class="devsite-nav-text" tooltip>App startup</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>Modularization</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/topic/modularization" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/modularization" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/modularization" ><span class="devsite-nav-text" tooltip>About modularization</span></a></li><li class="devsite-nav-item"><a href="/topic/modularization/patterns" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /topic/modularization/patterns" track-type="bookNav" track-name="click" track-metadata-eventdetail="/topic/modularization/patterns" ><span class="devsite-nav-text" tooltip>Common patterns</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>App resources</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/topics/resources/providing-resources" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/providing-resources" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/providing-resources" ><span class="devsite-nav-text" tooltip>About app resources</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/runtime-changes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/runtime-changes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/runtime-changes" ><span class="devsite-nav-text" tooltip>Handle configuration changes</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>Localization</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/topics/resources/localization" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/localization" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/localization" ><span class="devsite-nav-text" tooltip>Localize your app</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/pseudolocales" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/pseudolocales" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/pseudolocales" ><span class="devsite-nav-text" tooltip>Test your app with pseudolocales</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/internationalization" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/internationalization" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/internationalization" ><span class="devsite-nav-text" tooltip>Unicode and internationalization support</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/multilingual-support" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/multilingual-support" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/multilingual-support" ><span class="devsite-nav-text" tooltip>Language and locale resolution</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/app-languages" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/app-languages" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/app-languages" ><span class="devsite-nav-text" tooltip>Per-app language preferences</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/guide/topics/resources/complex-xml-resources" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/complex-xml-resources" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/complex-xml-resources" ><span class="devsite-nav-text" tooltip>Complex XML resources</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>Resource types</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/topics/resources/available-resources" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/available-resources" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/available-resources" ><span class="devsite-nav-text" tooltip>About resource types</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/animation-resource" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/animation-resource" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/animation-resource" ><span class="devsite-nav-text" tooltip>Animation</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/color-list-resource" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/color-list-resource" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/color-list-resource" ><span class="devsite-nav-text" tooltip>Color state list</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/drawable-resource" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/drawable-resource" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/drawable-resource" ><span class="devsite-nav-text" tooltip>Drawable</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/layout-resource" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/layout-resource" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/layout-resource" ><span class="devsite-nav-text" tooltip>Layout</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/menu-resource" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/menu-resource" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/menu-resource" ><span class="devsite-nav-text" tooltip>Menu</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/string-resource" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/string-resource" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/string-resource" ><span class="devsite-nav-text" tooltip>String</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/style-resource" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/style-resource" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/style-resource" ><span class="devsite-nav-text" tooltip>Style</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/font-resource" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/font-resource" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/font-resource" ><span class="devsite-nav-text" tooltip>Font</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/resources/more-resources" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/resources/more-resources" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/resources/more-resources" ><span class="devsite-nav-text" tooltip>More types</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>App manifest file</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/topics/manifest/manifest-intro" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/manifest-intro" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/manifest-intro" ><span class="devsite-nav-text" tooltip>About app manifests</span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/action-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/action-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/action-element" ><span class="devsite-nav-text" tooltip><action></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/activity-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/activity-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/activity-element" ><span class="devsite-nav-text" tooltip><activity></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/activity-alias-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/activity-alias-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/activity-alias-element" ><span class="devsite-nav-text" tooltip><activity-alias></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/application-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/application-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/application-element" ><span class="devsite-nav-text" tooltip><application></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/category-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/category-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/category-element" ><span class="devsite-nav-text" tooltip><category></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/compatible-screens-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/compatible-screens-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/compatible-screens-element" ><span class="devsite-nav-text" tooltip><compatible-screens></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/data-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/data-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/data-element" ><span class="devsite-nav-text" tooltip><data></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/grant-uri-permission-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/grant-uri-permission-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/grant-uri-permission-element" ><span class="devsite-nav-text" tooltip><grant-uri-permission></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/instrumentation-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/instrumentation-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/instrumentation-element" ><span class="devsite-nav-text" tooltip><instrumentation></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/intent-filter-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/intent-filter-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/intent-filter-element" ><span class="devsite-nav-text" tooltip><intent-filter></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/layout-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/layout-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/layout-element" ><span class="devsite-nav-text" tooltip><layout></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/manifest-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/manifest-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/manifest-element" ><span class="devsite-nav-text" tooltip><manifest></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/meta-data-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/meta-data-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/meta-data-element" ><span class="devsite-nav-text" tooltip><meta-data></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/path-permission-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/path-permission-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/path-permission-element" ><span class="devsite-nav-text" tooltip><path-permission></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/permission-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/permission-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/permission-element" ><span class="devsite-nav-text" tooltip><permission></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/permission-group-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/permission-group-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/permission-group-element" ><span class="devsite-nav-text" tooltip><permission-group></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/permission-tree-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/permission-tree-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/permission-tree-element" ><span class="devsite-nav-text" tooltip><permission-tree></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/profileable-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/profileable-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/profileable-element" ><span class="devsite-nav-text" tooltip><profileable></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/property-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/property-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/property-element" ><span class="devsite-nav-text" tooltip><property></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/provider-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/provider-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/provider-element" ><span class="devsite-nav-text" tooltip><provider></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/queries-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/queries-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/queries-element" ><span class="devsite-nav-text" tooltip><queries></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/receiver-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/receiver-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/receiver-element" ><span class="devsite-nav-text" tooltip><receiver></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/service-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/service-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/service-element" ><span class="devsite-nav-text" tooltip><service></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/supports-gl-texture-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/supports-gl-texture-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/supports-gl-texture-element" ><span class="devsite-nav-text" tooltip><supports-gl-texture></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/supports-screens-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/supports-screens-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/supports-screens-element" ><span class="devsite-nav-text" tooltip><supports-screens></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/uri-relative-filter-group-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/uri-relative-filter-group-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/uri-relative-filter-group-element" ><span class="devsite-nav-text" tooltip><uri-relative-filter-group></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/uses-configuration-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/uses-configuration-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/uses-configuration-element" ><span class="devsite-nav-text" tooltip><uses-configuration></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/uses-feature-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/uses-feature-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/uses-feature-element" ><span class="devsite-nav-text" tooltip><uses-feature></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/uses-library-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/uses-library-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/uses-library-element" ><span class="devsite-nav-text" tooltip><uses-library></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/uses-native-library-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/uses-native-library-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/uses-native-library-element" ><span class="devsite-nav-text" tooltip><uses-native-library></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/uses-permission-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/uses-permission-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/uses-permission-element" ><span class="devsite-nav-text" tooltip><uses-permission></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/uses-permission-sdk-23-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/uses-permission-sdk-23-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/uses-permission-sdk-23-element" ><span class="devsite-nav-text" tooltip><uses-permission-sdk-23></span></a></li><li class="devsite-nav-item"><a href="/guide/topics/manifest/uses-sdk-element" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/topics/manifest/uses-sdk-element" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/topics/manifest/uses-sdk-element" ><span class="devsite-nav-text" tooltip><uses-sdk></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>App entry points</span> </div><ul class="devsite-nav-section"><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>Activities</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/components/activities/intro-activities" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/activities/intro-activities" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/activities/intro-activities" ><span class="devsite-nav-text" tooltip>Introduction to activities</span></a></li><li class="devsite-nav-item"><a href="/guide/components/activities/activity-lifecycle" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/activities/activity-lifecycle" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/activities/activity-lifecycle" ><span class="devsite-nav-text" tooltip>The activity lifecycle</span></a></li><li class="devsite-nav-item"><a href="/guide/components/activities/state-changes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/activities/state-changes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/activities/state-changes" ><span class="devsite-nav-text" tooltip>Activity state changes</span></a></li><li class="devsite-nav-item"><a href="/guide/components/activities/testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/activities/testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/activities/testing" ><span class="devsite-nav-text" tooltip>Test your app's activities</span></a></li><li class="devsite-nav-item"><a href="/guide/components/activities/tasks-and-back-stack" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/activities/tasks-and-back-stack" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/activities/tasks-and-back-stack" ><span class="devsite-nav-text" tooltip>Tasks and the back stack</span></a></li><li class="devsite-nav-item"><a href="/guide/components/activities/process-lifecycle" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/activities/process-lifecycle" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/activities/process-lifecycle" ><span class="devsite-nav-text" tooltip>Processes and app lifecycle</span></a></li><li class="devsite-nav-item"><a href="/guide/components/activities/parcelables-and-bundles" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/activities/parcelables-and-bundles" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/activities/parcelables-and-bundles" ><span class="devsite-nav-text" tooltip>Parcelables and bundles</span></a></li><li class="devsite-nav-item"><a href="/guide/components/loaders" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/loaders" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/loaders" ><span class="devsite-nav-text" tooltip>Loaders</span></a></li><li class="devsite-nav-item"><a href="/guide/components/activities/recents" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/activities/recents" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/activities/recents" ><span class="devsite-nav-text" tooltip>Recents screen</span></a></li><li class="devsite-nav-item"><a href="/guide/components/activities/background-starts" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/activities/background-starts" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/activities/background-starts" ><span class="devsite-nav-text" tooltip>Restrictions on starting activities from the background</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/develop/ui/views/launch/shortcuts" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/views/launch/shortcuts" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/views/launch/shortcuts" ><span class="devsite-nav-text" tooltip>Add app shortcuts ⍈</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>App navigation</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/navigation/principles" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/principles" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/principles" ><span class="devsite-nav-text" tooltip>Principles of navigation</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>Navigation component</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/navigation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/navcontroller" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/navcontroller" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/navcontroller" ><span class="devsite-nav-text" tooltip>Navigation controller</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>Design your navigation graph</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/navigation/design" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/design" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/design" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/design/dialog-destinations" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/design/dialog-destinations" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/design/dialog-destinations" ><span class="devsite-nav-text" tooltip>Dialog destinations</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/design/activity-destinations" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/design/activity-destinations" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/design/activity-destinations" ><span class="devsite-nav-text" tooltip>Activity destinations</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/design/nested-graphs" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/design/nested-graphs" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/design/nested-graphs" ><span class="devsite-nav-text" tooltip>Nested graphs</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/design/deep-link" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/design/deep-link" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/design/deep-link" ><span class="devsite-nav-text" tooltip>Deep links</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/design/add-new" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/design/add-new" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/design/add-new" ><span class="devsite-nav-text" tooltip>New destination types</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/design/type-safety" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/design/type-safety" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/design/type-safety" ><span class="devsite-nav-text" tooltip>Type safety</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/design/encapsulate" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/design/encapsulate" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/design/encapsulate" ><span class="devsite-nav-text" tooltip>Encapsulate your code</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/design/actions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/design/actions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/design/actions" ><span class="devsite-nav-text" tooltip>Global actions</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/design/kotlin-dsl" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/design/kotlin-dsl" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/design/kotlin-dsl" ><span class="devsite-nav-text" tooltip>Fragments and the Kotlin DSL</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/design/editor" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/design/editor" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/design/editor" ><span class="devsite-nav-text" tooltip>Use the Navigation editor</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>Use your navigation graph</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/navigation/use-graph/navigate" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/use-graph/navigate" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/use-graph/navigate" ><span class="devsite-nav-text" tooltip>Navigate to a destination</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/use-graph/navoptions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/use-graph/navoptions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/use-graph/navoptions" ><span class="devsite-nav-text" tooltip>Navigate with options</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/use-graph/safe-args" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/use-graph/safe-args" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/use-graph/safe-args" ><span class="devsite-nav-text" tooltip>Safe args</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/use-graph/pass-data" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/use-graph/pass-data" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/use-graph/pass-data" ><span class="devsite-nav-text" tooltip>Pass data between destinations</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/use-graph/animate-transitions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/use-graph/animate-transitions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/use-graph/animate-transitions" ><span class="devsite-nav-text" tooltip>Animate transitions between destinations</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/use-graph/conditional" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/use-graph/conditional" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/use-graph/conditional" ><span class="devsite-nav-text" tooltip>Conditional navigation</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/use-graph/programmatic" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/use-graph/programmatic" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/use-graph/programmatic" ><span class="devsite-nav-text" tooltip>Interact programmatically with the Navigation component</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>The back stack</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/navigation/backstack" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/backstack" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/backstack" ><span class="devsite-nav-text" tooltip>Overview</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/backstack/dialog" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/backstack/dialog" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/backstack/dialog" ><span class="devsite-nav-text" tooltip>Dialogs and the back stack</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/backstack/circular" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/backstack/circular" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/backstack/circular" ><span class="devsite-nav-text" tooltip>Circular navigation and the back stack</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/backstack/multi-back-stacks" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/backstack/multi-back-stacks" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/backstack/multi-back-stacks" ><span class="devsite-nav-text" tooltip>Multiple back stacks</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>Integrations</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/navigation/integrations/feature-modules" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/integrations/feature-modules" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/integrations/feature-modules" ><span class="devsite-nav-text" tooltip>Navigate with feature modules</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/integrations/multi-module" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/integrations/multi-module" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/integrations/multi-module" ><span class="devsite-nav-text" tooltip>Multi-module projects</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/integrations/ui" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/integrations/ui" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/integrations/ui" ><span class="devsite-nav-text" tooltip>Connect UI components to NavController</span></a></li></ul></div></li><li class="devsite-nav-item"><a href="/guide/navigation/migrate" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/migrate" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/migrate" ><span class="devsite-nav-text" tooltip>Migrate to the Navigation component</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/testing" ><span class="devsite-nav-text" tooltip>Test navigation</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 back navigation</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/navigation/custom-back" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/custom-back" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/custom-back" ><span class="devsite-nav-text" tooltip>Custom back navigation</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/custom-back/predictive-back-gesture" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/custom-back/predictive-back-gesture" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/custom-back/predictive-back-gesture" ><span class="devsite-nav-text" tooltip>Predictive back gesture</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/custom-back/support-animations" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/custom-back/support-animations" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/custom-back/support-animations" ><span class="devsite-nav-text" tooltip>Add support for predictive back animations</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>Responsive design</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/navigation/responsive/config-changes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/responsive/config-changes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/responsive/config-changes" ><span class="devsite-nav-text" tooltip>Handling configuration changes</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/responsive/form-factors" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/responsive/form-factors" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/responsive/form-factors" ><span class="devsite-nav-text" tooltip>Design for different form factors</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>Swipe between views</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/navigation/advanced/swipe-view-2" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/advanced/swipe-view-2" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/advanced/swipe-view-2" ><span class="devsite-nav-text" tooltip>Swipe views using ViewPager2</span></a></li><li class="devsite-nav-item"><a href="/guide/navigation/advanced/swipe-view" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/navigation/advanced/swipe-view" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/navigation/advanced/swipe-view" ><span class="devsite-nav-text" tooltip>Swipe views using ViewPager</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>Fragments</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/guide/fragments" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments" ><span class="devsite-nav-text" tooltip>About fragments</span></a></li><li class="devsite-nav-item"><a href="/guide/fragments/create" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments/create" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments/create" ><span class="devsite-nav-text" tooltip>Create a fragment</span></a></li><li class="devsite-nav-item"><a href="/guide/fragments/fragmentmanager" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments/fragmentmanager" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments/fragmentmanager" ><span class="devsite-nav-text" tooltip>Fragment manager</span></a></li><li class="devsite-nav-item"><a href="/guide/fragments/transactions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments/transactions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments/transactions" ><span class="devsite-nav-text" tooltip>Fragment transactions</span></a></li><li class="devsite-nav-item"><a href="/guide/fragments/animate" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments/animate" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments/animate" ><span class="devsite-nav-text" tooltip>Animate transitions between fragments</span></a></li><li class="devsite-nav-item"><a href="/guide/fragments/lifecycle" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments/lifecycle" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments/lifecycle" ><span class="devsite-nav-text" tooltip>Fragment lifecycle</span></a></li><li class="devsite-nav-item"><a href="/guide/fragments/saving-state" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments/saving-state" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments/saving-state" ><span class="devsite-nav-text" tooltip>Saving state with fragments</span></a></li><li class="devsite-nav-item"><a href="/guide/fragments/communicate" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments/communicate" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments/communicate" ><span class="devsite-nav-text" tooltip>Communicate with fragments</span></a></li><li class="devsite-nav-item"><a href="/guide/fragments/appbar" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments/appbar" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments/appbar" ><span class="devsite-nav-text" tooltip>Working with the app bar</span></a></li><li class="devsite-nav-item"><a href="/guide/fragments/dialogs" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments/dialogs" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments/dialogs" ><span class="devsite-nav-text" tooltip>Displaying dialogs with DialogFragment</span></a></li><li class="devsite-nav-item"><a href="/guide/fragments/debugging" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments/debugging" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments/debugging" ><span class="devsite-nav-text" tooltip>Debug your fragments</span></a></li><li class="devsite-nav-item"><a href="/guide/fragments/test" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/fragments/test" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/fragments/test" ><span class="devsite-nav-text" tooltip>Test your fragments</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>App links</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/training/app-links" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/app-links" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/app-links" ><span class="devsite-nav-text" tooltip>About app links</span></a></li><li class="devsite-nav-item"><a href="/training/app-links/deep-linking" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/app-links/deep-linking" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/app-links/deep-linking" ><span class="devsite-nav-text" tooltip>Enabling links to app content</span></a></li><li class="devsite-nav-item"><a href="/training/app-links/verify-android-applinks" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/app-links/verify-android-applinks" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/app-links/verify-android-applinks" ><span class="devsite-nav-text" tooltip>Verify app links</span></a></li><li class="devsite-nav-item"><a href="/training/app-links/instant-app-links" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/app-links/instant-app-links" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/app-links/instant-app-links" ><span class="devsite-nav-text" tooltip>Create app links for instant apps</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>Interact with other apps</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/training/basics/intents" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/basics/intents" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/basics/intents" ><span class="devsite-nav-text" tooltip>About interacting with other apps</span></a></li><li class="devsite-nav-item"><a href="/guide/components/intents-filters" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/intents-filters" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/intents-filters" ><span class="devsite-nav-text" tooltip>About intents and intent filters</span></a></li><li class="devsite-nav-item"><a href="/guide/components/intents-common" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /guide/components/intents-common" track-type="bookNav" track-name="click" track-metadata-eventdetail="/guide/components/intents-common" ><span class="devsite-nav-text" tooltip>About common intents</span></a></li><li class="devsite-nav-item"><a href="/training/basics/intents/sending" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/basics/intents/sending" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/basics/intents/sending" ><span class="devsite-nav-text" tooltip>Send users to another app</span></a></li><li class="devsite-nav-item"><a href="/training/basics/intents/result" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/basics/intents/result" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/basics/intents/result" ><span class="devsite-nav-text" tooltip>Get a result from an activity</span></a></li><li class="devsite-nav-item"><a href="/training/basics/intents/filters" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/basics/intents/filters" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/basics/intents/filters" ><span class="devsite-nav-text" tooltip>Allow other apps to start your activity</span></a></li><li class="devsite-nav-item"><a href="/training/basics/intents/limit-play-loading" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/basics/intents/limit-play-loading" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/basics/intents/limit-play-loading" ><span class="devsite-nav-text" tooltip>Limit loading in on-device Android containers</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>Package visibility</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/training/package-visibility" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/package-visibility" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/package-visibility" ><span class="devsite-nav-text" tooltip>About package visibility</span></a></li><li class="devsite-nav-item"><a href="/training/package-visibility/automatic" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/package-visibility/automatic" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/package-visibility/automatic" ><span class="devsite-nav-text" tooltip>Know which packages are visible automatically</span></a></li><li class="devsite-nav-item"><a href="/training/package-visibility/declaring" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/package-visibility/declaring" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/package-visibility/declaring" ><span class="devsite-nav-text" tooltip>Declare package visibility needs</span></a></li><li class="devsite-nav-item"><a href="/training/package-visibility/use-cases" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/package-visibility/use-cases" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/package-visibility/use-cases" ><span class="devsite-nav-text" tooltip>Fulfill common use cases</span></a></li><li class="devsite-nav-item"><a href="/training/package-visibility/testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/package-visibility/testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/package-visibility/testing" ><span class="devsite-nav-text" tooltip>Test package visibility</span></a></li></ul></div></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>Dependency injection</span> </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/training/dependency-injection" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/dependency-injection" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/dependency-injection" ><span class="devsite-nav-text" tooltip>About dependency injection</span></a></li><li class="devsite-nav-item"><a href="/training/dependency-injection/manual" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /training/dependency-injection/manual" track-type="bookNav" track-name="click" track-metadata-eventdetail="/training/dependency-injection/manual" ><span class="devsite-nav-text" tooltip>Manual dependency injection</span></a></li><li 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</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://developer.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 Developers" > Android Developers </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developer.android.com/design" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="2" track-type="globalNav" track-name="breadcrumb" track-metadata-position="2" track-metadata-eventdetail="" > Design & Plan </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developer.android.com/topic/architecture/intro" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="3" track-type="globalNav" track-name="breadcrumb" track-metadata-position="3" track-metadata-eventdetail="App architecture" > App architecture </a> </li> </ul> <devsite-thumb-rating position="header"> </devsite-thumb-rating> </div> <h1 class="devsite-page-title" tabindex="-1"> Declare package visibility needs </h1> <devsite-feature-tooltip ack-key="AckCollectionsBookmarkTooltipDismiss" analytics-category="Site-Wide Custom Events" 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> <devsite-recommendations-dropdown class="nocontent"></devsite-recommendations-dropdown> <div class="devsite-article-body clearfix "> <p>As you create your app, it's important to consider the other apps on the device that your app needs to interact with. If your app targets Android 11 (API level 30) or higher, the system makes <a href="/training/package-visibility/automatic">some apps visible to your app automatically</a>, but it filters out other apps by default. This guide describes how to make those other apps visible to your app.</p> <p>If your app targets Android 11 or higher and needs to interact with apps other than the ones that are visible automatically, add the <a href="/guide/topics/manifest/queries-element"><code translate="no" dir="ltr"><queries></code></a> element in your app's manifest file. Within the <code translate="no" dir="ltr"><queries></code> element, specify the other apps <a href="#package-name">by package name</a>, <a href="#intent-filter-signature">by intent signature</a>, or <a href="#provider-authority">by provider authority</a>, as described in the following sections.</p> <h2 id="package-name" data-text="Specific package names" tabindex="-1">Specific package names</h2> <p>If you know the specific apps that you want to query or interact with, such as apps that integrate with your app or apps whose services you use, include their package names in a set of <a href="/guide/topics/manifest/queries-element"><code translate="no" dir="ltr"><package></code></a> elements inside the <code translate="no" dir="ltr"><queries></code> element:</p> <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="XML"><manifest<span class="devsite-syntax-w"> </span>package="com.example.game"> <span class="devsite-syntax-w"> </span><queries> <span class="devsite-syntax-w"> </span><package<span class="devsite-syntax-w"> </span>android:name="com.example.store"<span class="devsite-syntax-w"> </span>/> <span class="devsite-syntax-w"> </span><package<span class="devsite-syntax-w"> </span>android:name="com.example.services"<span class="devsite-syntax-w"> </span>/> <span class="devsite-syntax-w"> </span></queries> <span class="devsite-syntax-w"> </span>... </manifest></pre></devsite-code> <aside class="note"><strong>Note:</strong><span> If you declare a <code translate="no" dir="ltr"><package></code> element in your app's manifest, then the app associated with that package name appears in the results of any query to <code translate="no" dir="ltr">PackageManager</code> that matches a component from that app.</span></aside> <h3 id="communicate-host-app" data-text="Communicate with a host app in a library" tabindex="-1">Communicate with a host app in a library</h3> <p>If you develop an Android library, you can declare your package visibility needs by adding a <code translate="no" dir="ltr"><queries></code> element in your <a href="/studio/projects/android-library">AAR manifest file</a>. This <code translate="no" dir="ltr"><queries></code> element has the same functionality as the element that apps can declare in their own manifests.</p> <p>If your library involves communication with a host app, such as using a <a href="/guide/components/bound-services">bound service</a>, include a <code translate="no" dir="ltr"><package></code> element that specifies the host app's package name:</p> <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="XML"> <package<span class="devsite-syntax-w"> </span>android:name=<var translate="no">PACKAGE_NAME</var><span class="devsite-syntax-w"> </span>/></pre></devsite-code> <p>By including this declaration, you can check if the host app is installed and interact with it, such as by calling <a href="/reference/android/content/Context#bindService(android.content.Intent,%20int,%20java.util.concurrent.Executor,%20android.content.ServiceConnection)"><code translate="no" dir="ltr">bindService()</code></a>. The calling app that uses your library <a href="/training/package-visibility/automatic">automatically becomes visible</a> to the host app as a result of this interaction.</p> <p><a id="intent-signature"></a></p> <h2 id="intent-filter-signature" data-text="Packages that match an intent filter signature" tabindex="-1">Packages that match an intent filter signature</h2> <p>Your app might need to query or interact with a set of apps that serve a particular purpose, but you might not know the specific package names to include. In this situation, you can list <a href="/training/basics/intents/filters">intent filter signatures</a> in your <code translate="no" dir="ltr"><queries></code> element. Your app can then discover apps that have matching <a href="/guide/topics/manifest/intent-filter-element"><span style="white-space:nowrap;"><code translate="no" dir="ltr"><intent-filter></code></span></a> elements.</p> <p>The following code example shows an <code translate="no" dir="ltr"><intent></code> element that would allow the app to see other installed apps that support JPEG image sharing:</p> <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="XML"><manifest<span class="devsite-syntax-w"> </span>package="com.example.game"> <span class="devsite-syntax-w"> </span><queries> <span class="devsite-syntax-w"> </span><intent> <span class="devsite-syntax-w"> </span><action<span class="devsite-syntax-w"> </span>android:name="android.intent.action.SEND"<span class="devsite-syntax-w"> </span>/> <span class="devsite-syntax-w"> </span><data<span class="devsite-syntax-w"> </span>android:mimeType="image/jpeg"<span class="devsite-syntax-w"> </span>/> <span class="devsite-syntax-w"> </span></intent> <span class="devsite-syntax-w"> </span></queries> <span class="devsite-syntax-w"> </span>... </manifest></pre></devsite-code> <p>The <code translate="no" dir="ltr"><intent></code> element has a few restrictions:</p> <ul> <li>You must include exactly one <code translate="no" dir="ltr"><action></code> element.</li> <li>You cannot use the <code translate="no" dir="ltr">path</code>, <code translate="no" dir="ltr">pathPrefix</code>, <code translate="no" dir="ltr">pathPattern</code>, or <code translate="no" dir="ltr">port</code> attributes in a <code translate="no" dir="ltr"><data></code> element. The system behaves as if you set each attribute's value to the generic wildcard character (<code translate="no" dir="ltr">*</code>).</li> <li>You cannot use the <code translate="no" dir="ltr">mimeGroup</code> attribute of a <code translate="no" dir="ltr"><data></code> element.</li> <li><p>Within the <code translate="no" dir="ltr"><data></code> elements of a single <code translate="no" dir="ltr"><intent></code> element, you can use each of the following attributes at most once:</p> <ul> <li><code translate="no" dir="ltr">mimeType</code></li> <li><code translate="no" dir="ltr">scheme</code></li> <li><code translate="no" dir="ltr">host</code></li> </ul> <p>You can distribute these attributes across multiple <code translate="no" dir="ltr"><data></code> elements or use them in a single <code translate="no" dir="ltr"><data></code> element.</p></li> </ul> <p>The <code translate="no" dir="ltr"><intent></code> element supports the generic wildcard character (<code translate="no" dir="ltr">*</code>) as the value for a few attributes:</p> <ul> <li>The <code translate="no" dir="ltr">name</code> attribute of the <code translate="no" dir="ltr"><action></code> element.</li> <li>The subtype of the <code translate="no" dir="ltr">mimeType</code> attribute of a <code translate="no" dir="ltr"><data></code> element (<code translate="no" dir="ltr">image/*</code>).</li> <li>The type and subtype of the <code translate="no" dir="ltr">mimeType</code> attribute of a <code translate="no" dir="ltr"><data></code> element (<code translate="no" dir="ltr">*/*</code>).</li> <li>The <code translate="no" dir="ltr">scheme</code> attribute of a <code translate="no" dir="ltr"><data></code> element.</li> <li>The <code translate="no" dir="ltr">host</code> attribute of a <code translate="no" dir="ltr"><data></code> element.</li> </ul> <p>Unless otherwise specified in the previous list, the system doesn't support a mix of text and wildcard characters, such as <code translate="no" dir="ltr">prefix*</code>.</p> <h2 id="provider-authority" data-text="Packages that use a specific authority" tabindex="-1">Packages that use a specific authority</h2> <p>If you need to query a <a href="/guide/topics/providers/content-provider-basics#ContentURIs">content provider</a> but don't know the specific package names, you can declare the provider authority in a <a href="/guide/topics/manifest/provider-element"><code translate="no" dir="ltr"><provider></code></a> element, as shown in the following snippet:</p> <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="XML"><manifest<span class="devsite-syntax-w"> </span>package="com.example.suite.enterprise"> <span class="devsite-syntax-w"> </span><queries> <span class="devsite-syntax-w"> </span><b><provider<span class="devsite-syntax-w"> </span>android:authorities="com.example.settings.files"<span class="devsite-syntax-w"> </span>/></b> <span class="devsite-syntax-w"> </span></queries> <span class="devsite-syntax-w"> </span>... </manifest></pre></devsite-code> <aside class="note"><strong>Note:</strong><span> If your <code translate="no" dir="ltr"><queries></code> element includes a <code translate="no" dir="ltr"><provider></code> element, you might see an editor warning in Android Studio related to the <code translate="no" dir="ltr"><provider></code> element. As long as you're using the latest dot release of the Android Gradle plugin, your build is unaffected, so you can disregard the warning. Learn more in the blog post about <a href="https://android-developers.googleblog.com/2020/07/preparing-your-build-for-package-visibility-in-android-11.html">Preparing your Gradle build for package visibility in Android 11</a>.</span></aside> <p>You can declare provider authorities in a single <code translate="no" dir="ltr"><queries></code> element. Within the <code translate="no" dir="ltr"><queries></code> element, you can declare one or more <code translate="no" dir="ltr"><provider></code> elements. A <code translate="no" dir="ltr"><provider></code> element can include a single provider authority or a semicolon-delimited list of provider authorities.</p> <h2 id="all-apps" data-text="All apps (not recommended)" tabindex="-1">All apps (not recommended)</h2> <p>In rare cases, your app might need to query or interact with all installed apps on a device, independent of the components they contain. To allow your app to see all other installed apps, the system provides the <a href="/reference/android/Manifest.permission#QUERY_ALL_PACKAGES"><code translate="no" dir="ltr">QUERY_ALL_PACKAGES</code></a> permission.</p> <p>Some examples of use cases where the <code translate="no" dir="ltr">QUERY_ALL_PACKAGES</code> permission is appropriate to include are:</p> <ul> <li>Accessibility apps</li> <li>Browsers</li> <li>Device management apps</li> <li>Security apps</li> <li>Antivirus apps</li> </ul> <p>However, it's usually possible to fulfill your app's use cases by interacting with the set of apps that are <a href="/training/package-visibility/automatic">visible automatically </a> and by declaring the other apps that your app needs to access in your manifest file. 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