State and Jetpack Compose | Android Developers

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track-metadata-eventdetail="/develop/ui/compose/why-adopt" >Why Compose</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/setup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/setup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/setup" >Quick start</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/compiler" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/compiler" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/compiler" >Compose Compiler Gradle Plugin</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/mental-model" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/mental-model" 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track-metadata-eventdetail="/develop/ui/compose/modifiers" >Modifiers</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/constraints-modifiers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/constraints-modifiers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/constraints-modifiers" >Constraints and modifier order</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/custom-modifiers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/custom-modifiers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/custom-modifiers" >Custom modifiers</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/modifiers-list" class="devsite-nav-title gc-analytics-event" 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href="/develop/ui/compose/layouts/custom" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/custom" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/custom" >Custom layouts</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"> Adaptive layouts </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/canonical-layouts" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/canonical-layouts" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/canonical-layouts" >Canonical layouts</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/support-different-screen-sizes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/support-different-screen-sizes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/support-different-screen-sizes" >Support different screen sizes</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/use-window-size-classes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/use-window-size-classes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/use-window-size-classes" >Use window size classes</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/support-multi-window-mode" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/support-multi-window-mode" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/support-multi-window-mode" >Support multi-window mode</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/support-desktop-windowing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/support-desktop-windowing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/support-desktop-windowing" >Support desktop windowing</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/build-adaptive-navigation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/build-adaptive-navigation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/build-adaptive-navigation" >Build adaptive navigation</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/list-detail" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/list-detail" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/list-detail" >Build a list-detail layout</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/build-a-supporting-pane-layout" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/build-a-supporting-pane-layout" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/build-a-supporting-pane-layout" >Build a supporting pane layout</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/adaptive-dos-and-donts" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/adaptive-dos-and-donts" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/adaptive-dos-and-donts" >Adaptive do's and don'ts</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"> Foldables </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/foldables/learn-about-foldables" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/foldables/learn-about-foldables" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/foldables/learn-about-foldables" >Learn about foldables</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/foldables/make-your-app-fold-aware" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/foldables/make-your-app-fold-aware" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/foldables/make-your-app-fold-aware" >Make your app fold-aware</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/adaptive/foldables/support-foldable-display-modes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/adaptive/foldables/support-foldable-display-modes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/adaptive/foldables/support-foldable-display-modes" >Support foldable display modes</a></li></ul></div></li></ul></div></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/alignment-lines" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/alignment-lines" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/alignment-lines" >Alignment lines</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/intrinsic-measurements" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/intrinsic-measurements" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/intrinsic-measurements" >Intrinsic measurements</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/constraintlayout" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/constraintlayout" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/constraintlayout" >ConstraintLayout</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"> Components </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/components" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components" >Overview</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"> App bars </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/components/app-bars" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/app-bars" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/app-bars" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/app-bars-navigate" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/app-bars-navigate" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/app-bars-navigate" >Navigate from top app bar</a></li></ul></div></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/badges" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/badges" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/badges" >Badges</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"> Bottom sheets </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/components/bottom-sheets" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/bottom-sheets" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/bottom-sheets" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/bottom-sheets-partial" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/bottom-sheets-partial" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/bottom-sheets-partial" >Partial bottom sheet</a></li></ul></div></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/button" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/button" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/button" >Button</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/card" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/card" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/card" >Card</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/checkbox" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/checkbox" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/checkbox" >Checkbox</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/chip" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/chip" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/chip" >Chip</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/datepickers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/datepickers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/datepickers" >Date pickers</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/dialog" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/dialog" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/dialog" >Dialog</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/divider" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/divider" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/divider" >Divider</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/fab" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/fab" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/fab" >Floating action button</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/lists" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/lists" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/lists" >Lists and grids</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/drawer" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/drawer" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/drawer" >Navigation drawer</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/progress" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/progress" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/progress" >Progress indicators</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/resources" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/resources" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/resources" >Resources</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/scaffold" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/scaffold" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/scaffold" >Scaffold</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/slider" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/slider" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/slider" >Slider</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/snackbar" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/snackbar" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/snackbar" >Snackbar</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/switch" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/switch" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/switch" >Switch</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"> Time pickers </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/components/time-pickers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/time-pickers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/time-pickers" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/components/time-pickers-dialogs" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/components/time-pickers-dialogs" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/components/time-pickers-dialogs" >Time picker dialogs</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"> Theming </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/designsystems" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/designsystems" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/designsystems" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/designsystems/material3" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/designsystems/material3" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/designsystems/material3" >Material Design 3</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/designsystems/material2-material3" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/designsystems/material2-material3" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/designsystems/material2-material3" >Migrate from Material 2 to Material 3</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/designsystems/material" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/designsystems/material" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/designsystems/material" >Material Design 2</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/designsystems/custom" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/designsystems/custom" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/designsystems/custom" >Custom theming</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/designsystems/anatomy" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/designsystems/anatomy" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/designsystems/anatomy" >Anatomy of a theme</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/designsystems/views-to-compose" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/designsystems/views-to-compose" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/designsystems/views-to-compose" >Migrating XML themes to Compose</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"> Text and typography </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/text" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/text" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/text" >Overview</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"> Display and style text </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/text/display-text" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/text/display-text" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/text/display-text" >Display text from resource</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/text/style-text" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/text/style-text" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/text/style-text" >Style text</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/text/style-paragraph" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/text/style-paragraph" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/text/style-paragraph" >Style paragraph</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/text/configure-layout" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/text/configure-layout" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/text/configure-layout" >Configure text layout</a></li></ul></div></li><li class="devsite-nav-item"><a href="/develop/ui/compose/text/user-input" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/text/user-input" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/text/user-input" >Handle user input</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/text/user-interactions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/text/user-interactions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/text/user-interactions" >Enable user interactions</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/text/fonts" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/text/fonts" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/text/fonts" >Work with fonts</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/text/emoji" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/text/emoji" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/text/emoji" >Display emoji</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"> Images and graphics </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics" >Overview</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"> Images </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics/images" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics/images" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics/images" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics/images/loading" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics/images/loading" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics/images/loading" >Loading images</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics/images/compare" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics/images/compare" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics/images/compare" >ImageBitmap vs ImageVector</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics/images/material" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics/images/material" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics/images/material" >Material icons</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics/images/customize" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics/images/customize" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics/images/customize" >Customize an image</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics/images/custompainter" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics/images/custompainter" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics/images/custompainter" >Custom painter</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics/images/optimization" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics/images/optimization" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics/images/optimization" >Optimizing performance</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"> Graphics </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics/draw/overview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics/draw/overview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics/draw/overview" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics/draw/modifiers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics/draw/modifiers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics/draw/modifiers" >Graphics Modifiers</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics/draw/brush" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics/draw/brush" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics/draw/brush" >Brush</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/graphics/draw/shapes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/graphics/draw/shapes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/graphics/draw/shapes" >Shapes</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"> Animation </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/introduction" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/introduction" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/introduction" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/choose-api" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/choose-api" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/choose-api" >Choose an animation API</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/quick-guide" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/quick-guide" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/quick-guide" >Quick guide</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/composables-modifiers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/composables-modifiers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/composables-modifiers" >Animation modifiers and composables</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/value-based" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/value-based" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/value-based" >Value-based animations</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/vectors" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/vectors" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/vectors" >Animated vector images</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/advanced" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/advanced" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/advanced" >Advanced animation example</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/customize" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/customize" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/customize" >Customize animations</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"> Shared elements </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/shared-elements" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/shared-elements" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/shared-elements" >Introduction</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/shared-elements/customize" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/shared-elements/customize" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/shared-elements/customize" >Customize</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/shared-elements/common-use-cases" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/shared-elements/common-use-cases" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/shared-elements/common-use-cases" >Common use cases</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/shared-elements/navigation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/shared-elements/navigation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/shared-elements/navigation" >With navigation</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/shared-elements/additional-samples" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/shared-elements/additional-samples" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/shared-elements/additional-samples" >Additional samples</a></li></ul></div></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/testing" >Test animations</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/tooling" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/tooling" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/tooling" >Tools</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/animation/resources" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/animation/resources" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/animation/resources" >Additional resources</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"> Accessibility </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/accessibility" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/accessibility" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/accessibility" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/accessibility/key-steps" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/accessibility/key-steps" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/accessibility/key-steps" >Key steps</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/accessibility/semantics" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/accessibility/semantics" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/accessibility/semantics" >Semantics</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/accessibility/traversal" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/accessibility/traversal" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/accessibility/traversal" >Control traversal order</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/accessibility/testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/accessibility/testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/accessibility/testing" >Testing</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"> Touch and input </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input" >Overview</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"> Pointer input </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/pointer-input" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/pointer-input" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/pointer-input" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/pointer-input/understand-gestures" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/pointer-input/understand-gestures" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/pointer-input/understand-gestures" >Understand gestures</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/pointer-input/tap-and-press" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/pointer-input/tap-and-press" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/pointer-input/tap-and-press" >Tap and press</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/pointer-input/scroll" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/pointer-input/scroll" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/pointer-input/scroll" >Scroll</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/pointer-input/drag-swipe-fling" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/pointer-input/drag-swipe-fling" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/pointer-input/drag-swipe-fling" >Drag, swipe, and fling</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/pointer-input/multi-touch" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/pointer-input/multi-touch" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/pointer-input/multi-touch" >Multi-touch gestures</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"> Keyboard input </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/keyboard-input/commands" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/keyboard-input/commands" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/keyboard-input/commands" >Handle keyboard actions</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/keyboard-input/keyboard-shortcuts-helper" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/keyboard-input/keyboard-shortcuts-helper" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/keyboard-input/keyboard-shortcuts-helper" >Keyboard Shortcuts Helper</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"> Focus </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/focus" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/focus" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/focus" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/focus/change-focus-traversal-order" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/focus/change-focus-traversal-order" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/focus/change-focus-traversal-order" >Change focus traversal order</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/focus/change-focus-behavior" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/focus/change-focus-behavior" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/focus/change-focus-behavior" >Change focus behavior</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/focus/react-to-focus" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/focus/react-to-focus" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/focus/react-to-focus" >React to focus</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"> User interactions </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/user-interactions/handling-interactions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/user-interactions/handling-interactions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/user-interactions/handling-interactions" >Handling interactions</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/user-interactions/migrate-indication-ripple" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/user-interactions/migrate-indication-ripple" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/user-interactions/migrate-indication-ripple" >Migrate to Indication and Ripple APIs</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/user-interactions/drag-and-drop" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/user-interactions/drag-and-drop" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/user-interactions/drag-and-drop" >Drag and Drop</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"> Stylus input </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/stylus-input" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/stylus-input" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/stylus-input" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/stylus-input/stylus-input-in-text-fields" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/stylus-input/stylus-input-in-text-fields" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/stylus-input/stylus-input-in-text-fields" >Stylus input in text fields</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/stylus-input/advanced-stylus-features" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/stylus-input/advanced-stylus-features" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/stylus-input/advanced-stylus-features" >Advanced stylus features</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/stylus-input/create-a-note-taking-app" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/stylus-input/create-a-note-taking-app" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/stylus-input/create-a-note-taking-app" >Note-taking apps</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"> Add inking to your app with the Ink API </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/stylus-input/about-ink-api" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/stylus-input/about-ink-api" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/stylus-input/about-ink-api" >About the Ink API</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/stylus-input/ink-api-setup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/stylus-input/ink-api-setup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/stylus-input/ink-api-setup" >Setup</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/stylus-input/ink-api-modules" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/stylus-input/ink-api-modules" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/stylus-input/ink-api-modules" >Pick your module</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/stylus-input/ink-api-draw-stroke" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/stylus-input/ink-api-draw-stroke" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/stylus-input/ink-api-draw-stroke" >Draw a stroke</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/stylus-input/ink-api-brush-apis" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/stylus-input/ink-api-brush-apis" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/stylus-input/ink-api-brush-apis" >Define your brushes</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/stylus-input/ink-api-geometry-apis" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/stylus-input/ink-api-geometry-apis" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/stylus-input/ink-api-geometry-apis" >Create interactive tools with the Geometry APIs</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/stylus-input/ink-api-state-preservation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/stylus-input/ink-api-state-preservation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/stylus-input/ink-api-state-preservation" >State preservation and persistent storage</a></li></ul></div></li></ul></div></li><li class="devsite-nav-item"><a href="/develop/ui/compose/touch-input/copy-and-paste" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/touch-input/copy-and-paste" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/touch-input/copy-and-paste" >Copy and paste</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"> Performance </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/performance" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/performance" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/performance" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/performance/phases" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/performance/phases" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/performance/phases" >Phases</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/performance/baseline-profiles" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/performance/baseline-profiles" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/performance/baseline-profiles" >Baseline profiles</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"> Stability </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/performance/stability" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/performance/stability" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/performance/stability" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/performance/stability/diagnose" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/performance/stability/diagnose" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/performance/stability/diagnose" >Diagnose stability issues</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/performance/stability/fix" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/performance/stability/fix" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/performance/stability/fix" >Fix stability issues</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/performance/stability/strongskipping" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/performance/stability/strongskipping" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/performance/stability/strongskipping" >Strong skipping</a></li></ul></div></li><li class="devsite-nav-item"><a href="/develop/ui/compose/performance/tooling" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/performance/tooling" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/performance/tooling" >Tools</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/performance/bestpractices" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/performance/bestpractices" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/performance/bestpractices" >Best practices</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"> Style guidelines </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/api-guidelines" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/api-guidelines" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/api-guidelines" >Compose API guidelines</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/kotlin" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/kotlin" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/kotlin" >Kotlin for Compose</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"> UI testing </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/testing" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/testing/testing-cheatsheet" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/testing/testing-cheatsheet" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/testing/testing-cheatsheet" >Cheatsheet</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/testing/semantics" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/testing/semantics" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/testing/semantics" >Semantics</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/testing/apis" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/testing/apis" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/testing/apis" >Testing APIs</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/testing/synchronization" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/testing/synchronization" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/testing/synchronization" >Synchronize tests</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/testing/interoperability" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/testing/interoperability" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/testing/interoperability" >Interoperability</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/testing/common-patterns" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/testing/common-patterns" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/testing/common-patterns" >Common patterns</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/testing/debug" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/testing/debug" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/testing/debug" >Debug tests</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"> Migrate to Compose </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/migrate" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/migrate" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/migrate" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/migrate/strategy" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/migrate/strategy" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/migrate/strategy" >Migration strategy</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"> Interoperability APIs </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/migrate/interoperability-apis" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/migrate/interoperability-apis" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/migrate/interoperability-apis" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/migrate/interoperability-apis/compose-in-views" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/migrate/interoperability-apis/compose-in-views" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/migrate/interoperability-apis/compose-in-views" >Using Compose in Views</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/migrate/interoperability-apis/views-in-compose" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/migrate/interoperability-apis/views-in-compose" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/migrate/interoperability-apis/views-in-compose" >Using Views in Compose</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"> Common migration scenarios </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/migrate/migration-scenarios/recycler-view" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/migrate/migration-scenarios/recycler-view" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/migrate/migration-scenarios/recycler-view" >Migrate RecyclerView to Compose</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/migrate/migration-scenarios/coordinator-layout" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/migrate/migration-scenarios/coordinator-layout" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/migrate/migration-scenarios/coordinator-layout" >Migrate CoordinatorLayout to Compose</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/migrate/migration-scenarios/navigation" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/migrate/migration-scenarios/navigation" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/migrate/migration-scenarios/navigation" >Migrate Jetpack Navigation to Navigation Compose</a></li></ul></div></li><li class="devsite-nav-item"><a href="/develop/ui/compose/migrate/other-considerations" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/migrate/other-considerations" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/migrate/other-considerations" >Other considerations</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/adopt/for-large-teams" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/adopt/for-large-teams" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/adopt/for-large-teams" >Adopt Compose for teams</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/libraries" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/libraries" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/libraries" >Compose and other libraries</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/migrate/compare-metrics" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/migrate/compare-metrics" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/migrate/compare-metrics" >Compare Compose and View metrics</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"> Tools </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling" >Overview</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"> Design </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/previews" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/previews" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/previews" >Preview your UI</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/animation-preview" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/animation-preview" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/animation-preview" >Preview and debug animations</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"> Develop </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/iterative-development" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/iterative-development" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/iterative-development" >Develop code iteratively</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/editor-actions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/editor-actions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/editor-actions" >Editor actions</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"> Debug </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/layout-inspector" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/layout-inspector" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/layout-inspector" >Inspect your layout</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/tracing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/tracing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/tracing" >Trace app performance</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"> Relay designer and developer tooling </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/install-relay" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/install-relay" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/install-relay" >Install Relay</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/android-project-setup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/android-project-setup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/android-project-setup" >Set up your Android project</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"> Basic tutorial </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/basic-tutorial" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/basic-tutorial" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/basic-tutorial" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/create-ui-package-in-figma" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/create-ui-package-in-figma" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/create-ui-package-in-figma" >Create UI Package in Figma</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/convert-designs-android-studio" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/convert-designs-android-studio" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/convert-designs-android-studio" >Convert the designs to code in Android Studio</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/design-updates" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/design-updates" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/design-updates" >Make and propagate design updates</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/content-parameters" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/content-parameters" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/content-parameters" >Content parameters</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"> Advanced tutorial </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/advanced-tutorial" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/advanced-tutorial" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/advanced-tutorial" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/design-variants" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/design-variants" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/design-variants" >Handling design variants</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/content-parameters-advanced" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/content-parameters-advanced" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/content-parameters-advanced" >Content parameters</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/interaction-handlers" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/interaction-handlers" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/interaction-handlers" >Add interaction handlers to designs</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"> Relay workflow </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/relay-workflow" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/relay-workflow" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/relay-workflow" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/create-ui-packages" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/create-ui-packages" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/create-ui-packages" >Create UI Packages</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/add-parameters" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/add-parameters" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/add-parameters" >Add parameters</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/check-errors" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/check-errors" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/check-errors" >Check errors</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/share-ui-packages" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/share-ui-packages" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/share-ui-packages" >Share UI Packages</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/android-studio-workflow" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/android-studio-workflow" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/android-studio-workflow" >Android Studio workflow</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/understand-ui-package" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/understand-ui-package" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/understand-ui-package" >Understand UI Package & generated code</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/figma-devmode" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/figma-devmode" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/figma-devmode" >Figma DevMode</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"> Design-to-code translation details </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/figma-component-properties" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/figma-component-properties" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/figma-component-properties" >Figma Component Properties</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/children-parameters" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/children-parameters" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/children-parameters" >Children parameters</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/nested-package-instances" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/nested-package-instances" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/nested-package-instances" >Nested package instances</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/vector-graphics" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/vector-graphics" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/vector-graphics" >Vector graphics</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/multiple-styles-in-text" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/multiple-styles-in-text" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/multiple-styles-in-text" >Multiple styles in text</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/absolute-positioning" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/absolute-positioning" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/absolute-positioning" >Absolute positioning within auto layout</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/fill-color" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/fill-color" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/fill-color" >Fill color</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/effects" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/effects" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/effects" >Effects</a></li></ul></div></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/limitations-and-troubleshooting" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/limitations-and-troubleshooting" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/limitations-and-troubleshooting" >Limitations and troubleshooting</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"> Experimental features </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/mapping-styles-to-compose-theme" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/mapping-styles-to-compose-theme" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/mapping-styles-to-compose-theme" >Mapping styles to Compose theme</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/mapping-components-to-existing-code" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/mapping-components-to-existing-code" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/mapping-components-to-existing-code" >Mapping components to existing code</a></li></ul></div></li><li class="devsite-nav-item"><a href="/develop/ui/compose/tooling/relay/releases" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/tooling/relay/releases" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/tooling/relay/releases" >Releases</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"> Leverage system capabilities </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/layouts/insets" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/layouts/insets" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/layouts/insets" >Window Insets</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/system/cutouts" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/system/cutouts" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/system/cutouts" >Cutouts</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/system/picture-in-picture" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/system/picture-in-picture" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/system/picture-in-picture" >Picture-in-picture</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"> Create widgets </div><ul class="devsite-nav-section"><li class="devsite-nav-item"><a href="/develop/ui/compose/glance" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/glance" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/glance" >Overview</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/glance/setup" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/glance/setup" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/glance/setup" >Glance setup</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/glance/create-app-widget" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/glance/create-app-widget" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/glance/create-app-widget" >Create an app widget with Glance</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/glance/error-handling" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/glance/error-handling" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/glance/error-handling" >Handle errors with Glance</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/glance/testing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/glance/testing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/glance/testing" >Unit testing with Glance</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/glance/user-interaction" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/glance/user-interaction" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/glance/user-interaction" >Handle user interaction with Glance</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/glance/glance-app-widget" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/glance/glance-app-widget" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/glance/glance-app-widget" >Manage and update GlanceAppWidget</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/glance/build-ui" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/glance/build-ui" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/glance/build-ui" >Build UI with Glance</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/glance/theme" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/glance/theme" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/glance/theme" >Implement a Glance theme</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/glance/interoperability" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/glance/interoperability" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/glance/interoperability" >Glance interoperability</a></li><li class="devsite-nav-item"><a href="/develop/ui/compose/glance/additional-resources" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /develop/ui/compose/glance/additional-resources" track-type="bookNav" track-name="click" track-metadata-eventdetail="/develop/ui/compose/glance/additional-resources" >Additional resources</a></li></ul></div></li> </ul> <ul class="devsite-nav-list" menu="Essentials" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> Gemini in Android Studio </li> <li class="devsite-nav-item"> <a href="/gemini-in-android" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Learn more" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Learn more </a> </li> <li class="devsite-nav-item"> <a href="/studio" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Get Android Studio" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Get Android Studio </a> </li> <li class="devsite-nav-item devsite-nav-heading"> Get started </li> <li class="devsite-nav-item"> <a href="/get-started/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Hello world" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Hello world </a> </li> <li class="devsite-nav-item"> <a href="/courses" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Training courses" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Training courses </a> </li> <li class="devsite-nav-item"> <a href="/get-started/codelabs" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Tutorials" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Tutorials </a> </li> <li class="devsite-nav-item"> <a href="/kotlin" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Kotlin for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Kotlin for Android </a> </li> <li class="devsite-nav-item"> <a href="https://play.google.com/console/about/guides/monetize/" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Monetization with Play ↗️" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Monetization with Play ↗️ </a> </li> <li class="devsite-nav-item devsite-nav-heading"> Extend by device </li> <li class="devsite-nav-item"> <a href="/adaptive-apps" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Adaptive apps" track-type="navMenu" 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data-label="Responsive Tab: Experimental updates" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Experimental updates </a> </li> <li class="devsite-nav-item"> <a href="/studio/preview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Android Studio preview" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Android Studio preview </a> </li> <li class="devsite-nav-item"> <a href="/jetpack/androidx/versions" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Jetpack & Compose libraries" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Jetpack & Compose libraries </a> </li> <li class="devsite-nav-item"> <a href="/training/wearables/versions/4" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Wear OS preview" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Wear OS preview </a> </li> <li class="devsite-nav-item"> <a href="/design-for-safety/privacy-sandbox" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Privacy Sandbox" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Privacy Sandbox </a> </li> </ul> <ul class="devsite-nav-list" menu="Design & Plan" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> UI Design </li> <li class="devsite-nav-item"> <a href="/design/ui" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Design for Android" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Design for Android </a> </li> <li class="devsite-nav-item"> <a 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data-category="Site-Wide Custom Events" data-label="Responsive Tab: Wear OS" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Wear OS </a> </li> <li class="devsite-nav-item"> <a href="/design/ui/tv" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Android TV" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Android TV </a> </li> <li class="devsite-nav-item devsite-nav-heading"> Architecture </li> <li class="devsite-nav-item"> <a href="/topic/architecture/intro" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Introduction" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Introduction </a> </li> <li class="devsite-nav-item"> <a href="/topic/libraries/view-binding" class="devsite-nav-title gc-analytics-event " 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data-label="Responsive Tab: Testing" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Testing </a> </li> <li class="devsite-nav-item devsite-nav-heading"> Quality </li> <li class="devsite-nav-item"> <a href="/quality" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Overview" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Overview </a> </li> <li class="devsite-nav-item"> <a href="/quality/core-value" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Core value" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Core value </a> </li> <li class="devsite-nav-item"> <a href="/quality/user-experience" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: User experience" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> User experience </a> </li> <li class="devsite-nav-item"> <a href="/quality/technical" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Technical quality" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Technical quality </a> </li> <li class="devsite-nav-item"> <a href="/quality/privacy-and-security" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Security" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Security </a> </li> <li class="devsite-nav-item devsite-nav-heading"> Security </li> <li class="devsite-nav-item"> <a href="/security" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Overview" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Overview </a> </li> <li class="devsite-nav-item"> <a href="/privacy-and-security/about" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Privacy" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Privacy </a> </li> <li class="devsite-nav-item"> <a href="/identity" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Identity" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Identity </a> </li> <li class="devsite-nav-item"> <a href="/security/fraud-prevention" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Fraud prevention" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Fraud prevention </a> </li> <li class="devsite-nav-item devsite-nav-heading"> Build for Billions </li> <li class="devsite-nav-item"> <a href="/build-for-billions" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Overview" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Overview </a> </li> <li class="devsite-nav-item"> <a href="/docs/quality-guidelines/build-for-billions" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: About new markets" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> About new markets </a> </li> <li class="devsite-nav-item"> <a href="/guide/topics/androidgo" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Android (Go edition)" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Android (Go edition) </a> </li> </ul> <ul class="devsite-nav-list" menu="Develop" aria-label="Side menu" hidden> <li class="devsite-nav-item devsite-nav-heading"> Build AI experiences </li> <li class="devsite-nav-item"> <a href="/ai" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Get started" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Get started </a> </li> <li class="devsite-nav-item devsite-nav-heading"> Core areas </li> <li class="devsite-nav-item"> <a href="/samples" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Samples" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Samples </a> </li> <li class="devsite-nav-item"> <a href="/quick-guides" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Try 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track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Background work </a> </li> <li class="devsite-nav-item"> <a href="/guide/topics/data" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Data and files" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Data and files </a> </li> <li class="devsite-nav-item"> <a href="/develop#core-areas" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: All core areas ⤵️" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> All core areas ⤵️ </a> </li> <li class="devsite-nav-item devsite-nav-heading"> Tools and workflow </li> <li class="devsite-nav-item"> <a href="/studio/write" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Write and debug code" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Write and debug code </a> </li> <li class="devsite-nav-item"> <a href="/build/gradle-build-overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Build projects" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Build projects </a> </li> <li class="devsite-nav-item"> <a href="/training/testing" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Test your app" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Test your app </a> </li> <li class="devsite-nav-item"> <a href="/topic/performance/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Performance" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Performance </a> </li> <li class="devsite-nav-item"> <a href="/tools" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Command-line tools" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Command-line tools </a> </li> <li class="devsite-nav-item"> <a href="/reference/tools/gradle-api" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Gradle plugin API" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Gradle plugin API </a> </li> <li class="devsite-nav-item devsite-nav-heading"> Device tech </li> <li class="devsite-nav-item"> <a href="/guide/topics/large-screens/get-started-with-large-screens" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Large screens (e.g., tablets)" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Large screens (e.g., tablets) </a> </li> <li class="devsite-nav-item"> <a href="/training/wearables" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Wear OS" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Wear OS </a> </li> <li class="devsite-nav-item"> <a href="/health-and-fitness/guides" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Android Health" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> Android Health </a> </li> <li class="devsite-nav-item"> <a href="/guide/topics/connectivity/cross-device-sdk/overview" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Cross-device SDK" track-type="navMenu" 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track-metadata-eventdetail="Jetpack Compose" > UI </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://developer.android.com/develop/ui/compose/documentation" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="5" track-type="globalNav" track-name="breadcrumb" track-metadata-position="5" track-metadata-eventdetail="" > Guides </a> </li> </ul> <devsite-thumb-rating position="header"> </devsite-thumb-rating> </div> <h1 class="devsite-page-title" tabindex="-1"> State and Jetpack Compose </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> Stay organized with collections Save and categorize content based on your preferences. </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 "> <div class="video-wrapper"> <iframe class="devsite-embedded-youtube-video" data-video-id="mymWGMy9pYI" data-autohide="1" data-showinfo="0" allowfullscreen> </iframe> </div> State in an app is any value that can change over time. This is a very broad definition and encompasses everything from a Room database to a variable in a class. All Android apps display state to the user. A few examples of state in Android apps: <ul> <li>A Snackbar that shows when a network connection can't be established.</li> <li>A blog post and associated comments.</li> <li>Ripple animations on buttons that play when a user clicks them.</li> <li>Stickers that a user can draw on top of an image.</li> </ul> Jetpack Compose helps you be explicit about where and how you store and use state in an Android app. This guide focuses on the connection between state and composables, and on the APIs that Jetpack Compose offers to work with state more easily. <h2 id="state-and-composition" data-text="State and composition" tabindex="-1">State and composition</h2> Compose is declarative and as such the only way to update it is by calling the same composable with new arguments. These arguments are representations of the UI state. Any time a state is updated a recomposition takes place. As a result, things like <code translate="no" dir="ltr">TextField</code> don’t automatically update like they do in imperative XML based views. A composable has to explicitly be told the new state in order for it to update accordingly. <div></div><devsite-code><pre id="android_compose_state_overview-code-sample" data-scope="android_compose_state_overview" data-code-snippet="true" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_overview" data-copy-event-label="android_compose_state_overview-StateOverviewSnippets" class="devsite-click-to-copy notranslate" dir="ltr" is-upgraded syntax="Kotlin">@Composable private fun HelloContent() { Column(modifier = Modifier.padding(16.dp)) { Text( text = "Hello!", modifier = Modifier.padding(bottom = 8.dp), style = MaterialTheme.typography.bodyMedium ) OutlinedTextField( value = "", onValueChange = { }, label = { Text("Name") } ) } }<div class="devsite-github-link nocode no-select"><a target="_top" href="https://github.com/android/snippets/blob/f595a0d317fd8aca6b33d4344bf87696cd45c481/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#L53-L67" class="gc-analytics-event" data-category="github_link" data-label="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#android_compose_state_overview" data-code-snippet="true" data-git-revision="main" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_overview">StateOverviewSnippets.kt</a></div></pre></devsite-code> If you run this and try to enter text, you'll see that nothing happens. That's because the <code translate="no" dir="ltr">TextField</code> doesn't update itself—it updates when its <code translate="no" dir="ltr">value</code> parameter changes. This is due to how composition and recomposition work in Compose. <aside class="key-term">Key Term: Composition: a description of the UI built by Jetpack Compose when it executes composables. Initial composition: creation of a Composition by running composables the first time. Recomposition: re-running composables to update the Composition when data changes. </aside> To learn more about initial composition and recomposition, see <a href="/develop/ui/compose/mental-model">Thinking in Compose</a>. <h2 id="state-in-composables" data-text="State in composables" tabindex="-1">State in composables</h2> Composable functions can use the <a href="/reference/kotlin/androidx/compose/runtime/package-summary#remember(kotlin.Function0)"><code translate="no" dir="ltr">remember</code></a> API to store an object in memory. A value computed by <code translate="no" dir="ltr">remember</code> is stored in the Composition during initial composition, and the stored value is returned during recomposition. <code translate="no" dir="ltr">remember</code> can be used to store both mutable and immutable objects. <aside class="note">Note: <code translate="no" dir="ltr">remember</code> stores objects in the Composition, and forgets the object when the composable that called <code translate="no" dir="ltr">remember</code> is removed from the Composition.</aside> <a href="/reference/kotlin/androidx/compose/runtime/package-summary#mutableStateOf(kotlin.Any,androidx.compose.runtime.SnapshotMutationPolicy)"><code translate="no" dir="ltr">mutableStateOf</code></a> creates an observable <a href="/reference/kotlin/androidx/compose/runtime/MutableState"><code translate="no" dir="ltr">MutableState<T></code></a>, which is an observable type integrated with the compose runtime. <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Kotlin"><code translate="no" dir="ltr">interface MutableState<T> : State<T> { override var value: T } </code></pre></devsite-code> Any changes to <code translate="no" dir="ltr">value</code> schedules recomposition of any composable functions that read <code translate="no" dir="ltr">value</code>. There are three ways to declare a <code translate="no" dir="ltr">MutableState</code> object in a composable: <ul> <li><code translate="no" dir="ltr">val mutableState = remember { mutableStateOf(default) }</code></li> <li><code translate="no" dir="ltr">var value by remember { mutableStateOf(default) }</code></li> <li><code translate="no" dir="ltr">val (value, setValue) = remember { mutableStateOf(default) }</code></li> </ul> These declarations are equivalent, and are provided as syntax sugar for different uses of state. You should pick the one that produces the easiest-to-read code in the composable you're writing. The <code translate="no" dir="ltr">by</code> delegate syntax requires the following imports: <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Kotlin"><code translate="no" dir="ltr">import androidx.compose.runtime.getValue import androidx.compose.runtime.setValue </code></pre></devsite-code> You can use the remembered value as a parameter for other composables or even as logic in statements to change which composables are displayed. For example, if you don't want to display the greeting if the name is empty, use the state in an <code translate="no" dir="ltr">if</code> statement: <div></div><devsite-code><pre id="android_compose_state_remember-code-sample" data-scope="android_compose_state_remember" data-code-snippet="true" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_remember" data-copy-event-label="android_compose_state_remember-StateOverviewSnippets" class="devsite-click-to-copy notranslate" dir="ltr" is-upgraded syntax="Kotlin">@Composable fun HelloContent() { Column(modifier = Modifier.padding(16.dp)) { var name by remember { mutableStateOf("") } if (name.isNotEmpty()) { Text( text = "Hello, $name!", modifier = Modifier.padding(bottom = 8.dp), style = MaterialTheme.typography.bodyMedium ) } OutlinedTextField( value = name, onValueChange = { name = it }, label = { Text("Name") } ) } }<div class="devsite-github-link nocode no-select"><a target="_top" href="https://github.com/android/snippets/blob/f595a0d317fd8aca6b33d4344bf87696cd45c481/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#L72-L89" class="gc-analytics-event" data-category="github_link" data-label="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#android_compose_state_remember" data-code-snippet="true" data-git-revision="main" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_remember">StateOverviewSnippets.kt</a></div></pre></devsite-code> While <code translate="no" dir="ltr">remember</code> helps you retain state across recompositions, the state is not retained across configuration changes. For this, you must use <code translate="no" dir="ltr">rememberSaveable</code>. <code translate="no" dir="ltr">rememberSaveable</code> automatically saves any value that can be saved in a <code translate="no" dir="ltr">Bundle</code>. For other values, you can pass in a custom saver object. <aside class="caution">Caution: Using mutable objects such as <code translate="no" dir="ltr">ArrayList<T></code> or <code translate="no" dir="ltr">mutableListOf()</code> as state in Compose causes your users to see incorrect or stale data in your app. Mutable objects that are not observable, such as ArrayList<T> or a mutable data class, are not observable by Compose and don't trigger a recomposition when they change. Instead of using non-observable mutable objects, the recommendation is to use an observable data holder such as <code translate="no" dir="ltr">State<List<T>></code> and the immutable <code translate="no" dir="ltr">listOf()</code>.</aside> <h2 id="use-other-types-of-state-in-jetpack-compose" data-text="Other supported types of state" tabindex="-1">Other supported types of state</h2> Compose doesn't require that you use <code translate="no" dir="ltr">MutableState<T></code> to hold state; it supports other observable types. Before reading another observable type in Compose, you must convert it to a <code translate="no" dir="ltr">State<T></code> so that composables can automatically recompose when the state changes. Compose ships with functions to create <a href="/reference/kotlin/androidx/compose/runtime/State"><code translate="no" dir="ltr">State<T></code></a> from common observable types used in Android apps. Before using these integrations, add the appropriate <a href="/jetpack/androidx/releases/compose-runtime#declaring_dependencies">artifact(s)</a> as outlined below: <ul> <li><a href="https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.flow/-flow/index.html" class="external"><code translate="no" dir="ltr">Flow</code></a>: <a href="/reference/kotlin/androidx/lifecycle/compose/package-summary#extension-functions"><code translate="no" dir="ltr">collectAsStateWithLifecycle()</code></a> <a href="/reference/kotlin/androidx/lifecycle/compose/package-summary#extension-functions"><code translate="no" dir="ltr">collectAsStateWithLifecycle()</code></a> collects values from a <a href="https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.flow/-flow/index.html" class="external"><code translate="no" dir="ltr">Flow</code></a> in a lifecycle-aware manner, allowing your app to conserve app resources. It represents the latest emitted value from the Compose <a href="/reference/kotlin/androidx/compose/runtime/State"><code translate="no" dir="ltr">State</code></a>. Use this API as the recommended way to collect flows on Android apps. <aside class="note">Note: To learn more about collecting flows safely in Android with <code translate="no" dir="ltr">collectAsStateWithLifecycle()</code> API , you can read <a href="https://medium.com/androiddevelopers/consuming-flows-safely-in-jetpack-compose-cde014d0d5a3" class="external">this blog post</a>.</aside> The following <a href="/jetpack/androidx/releases/lifecycle">dependency</a> is required in the <code translate="no" dir="ltr">build.gradle</code> file (it should be 2.6.0-beta01 or newer):</li> </ul> <div class="ds-selector-tabs" data-ds-scope="code-sample"> <section><h3 id="kotlin" data-text="Kotlin" tabindex="-1">Kotlin</h3><div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Kotlin"><code translate="no" dir="ltr">dependencies { ... implementation("androidx.lifecycle:lifecycle-runtime-compose:2.8.7") } </code></pre></devsite-code></section> <section><h3 id="groovy" data-text="Groovy" tabindex="-1">Groovy</h3><div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Groovy"><code translate="no" dir="ltr">dependencies { ... implementation "androidx.lifecycle:lifecycle-runtime-compose:2.8.7" } </code></pre></devsite-code></section> </div> <ul> <li><a href="https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.flow/-flow/index.html" class="external"><code translate="no" dir="ltr">Flow</code></a>: <a href="/reference/kotlin/androidx/compose/runtime/package-summary#(kotlinx.coroutines.flow.StateFlow).collectAsState(kotlin.coroutines.CoroutineContext)"><code translate="no" dir="ltr">collectAsState()</code></a> <code translate="no" dir="ltr">collectAsState</code> is similar to <code translate="no" dir="ltr">collectAsStateWithLifecycle</code>, because it also collects values from a <code translate="no" dir="ltr">Flow</code> and transforms it into Compose <a href="/reference/kotlin/androidx/compose/runtime/State"><code translate="no" dir="ltr">State</code></a>. Use <code translate="no" dir="ltr">collectAsState</code> for platform-agnostic code instead of <code translate="no" dir="ltr">collectAsStateWithLifecycle</code>, which is Android-only. Additional dependencies are not required for <code translate="no" dir="ltr">collectAsState</code>, because it is available in <code translate="no" dir="ltr">compose-runtime</code>.</li> <li><a href="/reference/kotlin/androidx/compose/runtime/livedata/package-summary"><code translate="no" dir="ltr">LiveData</code></a>: <a href="/reference/kotlin/androidx/compose/runtime/livedata/package-summary#(androidx.lifecycle.LiveData).observeAsState(kotlin.Any)"><code translate="no" dir="ltr">observeAsState()</code></a> <code translate="no" dir="ltr">observeAsState()</code> starts observing this <a href="/reference/kotlin/androidx/lifecycle/LiveData"><code translate="no" dir="ltr">LiveData</code></a> and represents its values via <a href="/reference/kotlin/androidx/compose/runtime/State"><code translate="no" dir="ltr">State</code></a>. The following <a href="/jetpack/androidx/releases/compose-runtime">dependency</a> is required in the <code translate="no" dir="ltr">build.gradle</code> file:</li> </ul> <div class="ds-selector-tabs" data-ds-scope="code-sample"> <section><h3 id="kotlin_1" data-text="Kotlin" tabindex="-1">Kotlin</h3><div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Kotlin"><code translate="no" dir="ltr">dependencies { ... implementation("androidx.compose.runtime:runtime-livedata:1.7.5") } </code></pre></devsite-code></section> <section><h3 id="groovy_1" data-text="Groovy" tabindex="-1">Groovy</h3><div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Groovy"><code translate="no" dir="ltr">dependencies { ... implementation "androidx.compose.runtime:runtime-livedata:1.7.5" } </code></pre></devsite-code></section> </div> <ul> <li><a href="/reference/kotlin/androidx/compose/runtime/rxjava2/package-summary"><code translate="no" dir="ltr">RxJava2</code></a>: <a href="/reference/kotlin/androidx/compose/runtime/rxjava2/package-summary#extension-functions"><code translate="no" dir="ltr">subscribeAsState()</code></a> <code translate="no" dir="ltr">subscribeAsState()</code> are extension functions that transform RxJava2’s reactive streams (e.g. <a href="http://reactivex.io/RxJava/2.x/javadoc/2.0.8/io/reactivex/Single.html" class="external"><code translate="no" dir="ltr">Single</code></a>, <a href="http://reactivex.io/RxJava/2.x/javadoc/2.0.8/io/reactivex/Observable.html" class="external"><code translate="no" dir="ltr">Observable</code></a>, <a href="http://reactivex.io/RxJava/2.x/javadoc/2.0.8/io/reactivex/Completable.html" class="external"><code translate="no" dir="ltr">Completable</code></a>) into Compose <a href="/reference/kotlin/androidx/compose/runtime/State"><code translate="no" dir="ltr">State</code></a>. The following <a href="/jetpack/androidx/releases/compose-runtime">dependency</a> is required in the <code translate="no" dir="ltr">build.gradle</code> file:</li> </ul> <div class="ds-selector-tabs" data-ds-scope="code-sample"> <section><h3 id="kotlin_2" data-text="Kotlin" tabindex="-1">Kotlin</h3><div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Kotlin"><code translate="no" dir="ltr">dependencies { ... implementation("androidx.compose.runtime:runtime-rxjava2:1.7.5") } </code></pre></devsite-code></section> <section><h3 id="groovy_2" data-text="Groovy" tabindex="-1">Groovy</h3><div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Groovy"><code translate="no" dir="ltr">dependencies { ... implementation "androidx.compose.runtime:runtime-rxjava2:1.7.5" } </code></pre></devsite-code></section> </div> <ul> <li><a href="/reference/kotlin/androidx/compose/runtime/rxjava3/package-summary"><code translate="no" dir="ltr">RxJava3</code></a>: <a href="/reference/kotlin/androidx/compose/runtime/rxjava3/package-summary#extension-functions"><code translate="no" dir="ltr">subscribeAsState()</code></a> <code translate="no" dir="ltr">subscribeAsState()</code> are extension functions that transform RxJava3’s reactive streams (e.g. <a href="http://reactivex.io/RxJava/3.x/javadoc/io/reactivex/rxjava3/core/Single.html" class="external"><code translate="no" dir="ltr">Single</code></a>, <a href="http://reactivex.io/RxJava/3.x/javadoc/io/reactivex/rxjava3/core/Observable.html" class="external"><code translate="no" dir="ltr">Observable</code></a>, <a href="http://reactivex.io/RxJava/3.x/javadoc/io/reactivex/rxjava3/core/Completable.html" class="external"><code translate="no" dir="ltr">Completable</code></a>) into Compose <a href="/reference/kotlin/androidx/compose/runtime/State"><code translate="no" dir="ltr">State</code></a>. The following <a href="/jetpack/androidx/releases/compose-runtime">dependency</a> is required in the <code translate="no" dir="ltr">build.gradle</code> file:</li> </ul> <div class="ds-selector-tabs" data-ds-scope="code-sample"> <section><h3 id="kotlin_3" data-text="Kotlin" tabindex="-1">Kotlin</h3><div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Kotlin"><code translate="no" dir="ltr">dependencies { ... implementation("androidx.compose.runtime:runtime-rxjava3:1.7.5") } </code></pre></devsite-code></section> <section><h3 id="groovy_3" data-text="Groovy" tabindex="-1">Groovy</h3><div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Groovy"><code translate="no" dir="ltr">dependencies { ... implementation "androidx.compose.runtime:runtime-rxjava3:1.7.5" } </code></pre></devsite-code></section> </div><aside class="key-point">Key Point: Compose automatically recomposes from reading <code translate="no" dir="ltr">State</code> objects. If you use another observable type such as <code translate="no" dir="ltr">LiveData</code> in Compose, you should convert it to <code translate="no" dir="ltr">State</code> before reading it. Make sure that type conversion happens in a composable, using a composable extension function like <code translate="no" dir="ltr">LiveData<T>.observeAsState()</code>.</aside><aside class="note">Note: You are not limited to these integrations. You can build an extension function for Jetpack Compose that reads other observable types. If your app uses a custom observable class, convert it to produce <code translate="no" dir="ltr">State<T></code> using the <a href="/reference/kotlin/androidx/compose/runtime/package-summary#produceState(kotlin.Any,kotlin.coroutines.SuspendFunction1)"><code translate="no" dir="ltr">produceState</code></a> API. See the implementation of the builtins for examples of how to do this: <a href="https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:lifecycle/lifecycle-runtime-compose/src/main/java/androidx/lifecycle/compose/FlowExt.kt;l=168?q=collectAsStateWithLifecycle" class="external">collectAsStateWithLifecycle</a>. Any object that allows Jetpack Compose to subscribe to every change can be converted to <code translate="no" dir="ltr">State<T></code> and read in a Composable.</aside> <h3 id="stateful-vs-stateless" data-text="Stateful versus stateless" tabindex="-1">Stateful versus stateless</h3> A composable that uses <code translate="no" dir="ltr">remember</code> to store an object creates internal state, making the composable stateful. <code translate="no" dir="ltr">HelloContent</code> is an example of a stateful composable because it holds and modifies its <code translate="no" dir="ltr">name</code> state internally. This can be useful in situations where a caller doesn't need to control the state and can use it without having to manage the state themselves. However, composables with internal state tend to be less reusable and harder to test. A stateless composable is a composable that doesn't hold any state. An easy way to achieve stateless is by using <a href="/develop/ui/compose/state#state-hoisting">state hoisting</a>. As you develop reusable composables, you often want to expose both a stateful and a stateless version of the same composable. The stateful version is convenient for callers that don't care about the state, and the stateless version is necessary for callers that need to control or hoist the state. <h2 id="state-hoisting" data-text="State hoisting" tabindex="-1">State hoisting</h2> State hoisting in Compose is a pattern of moving state to a composable's caller to make a composable stateless. The general pattern for state hoisting in Jetpack Compose is to replace the state variable with two parameters: <ul> <li><code translate="no" dir="ltr">value: T</code>: the current value to display</li> <li><code translate="no" dir="ltr">onValueChange: (T) -> Unit</code>: an event that requests the value to change, where <code translate="no" dir="ltr">T</code> is the proposed new value</li> </ul> However, you are not limited to <code translate="no" dir="ltr">onValueChange</code>. If more specific events are appropriate for the composable, you should define them using lambdas. State that is hoisted this way has some important properties: <ul> <li>Single source of truth: By moving state instead of duplicating it, we're ensuring there's only one source of truth. This helps avoid bugs.</li> <li>Encapsulated: Only stateful composables can modify their state. It's completely internal.</li> <li>Shareable: Hoisted state can be shared with multiple composables. If you wanted to read <code translate="no" dir="ltr">name</code> in a different composable, hoisting would allow you to do that.</li> <li>Interceptable: callers to the stateless composables can decide to ignore or modify events before changing the state.</li> <li>Decoupled: the state for the stateless composables may be stored anywhere. For example, it's now possible to move <code translate="no" dir="ltr">name</code> into a <code translate="no" dir="ltr">ViewModel</code>.</li> </ul> In the example case, you extract the <code translate="no" dir="ltr">name</code> and the <code translate="no" dir="ltr">onValueChange</code> out of <code translate="no" dir="ltr">HelloContent</code> and move them up the tree to a <code translate="no" dir="ltr">HelloScreen</code> composable that calls <code translate="no" dir="ltr">HelloContent</code>. <div></div><devsite-code><pre id="android_compose_state_hoisting-code-sample" data-scope="android_compose_state_hoisting" data-code-snippet="true" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_hoisting" data-copy-event-label="android_compose_state_hoisting-StateOverviewSnippets" class="devsite-click-to-copy notranslate" dir="ltr" is-upgraded syntax="Kotlin">@Composable fun HelloScreen() { var name by rememberSaveable { mutableStateOf("") } HelloContent(name = name, onNameChange = { name = it }) } @Composable fun HelloContent(name: String, onNameChange: (String) -> Unit) { Column(modifier = Modifier.padding(16.dp)) { Text( text = "Hello, $name", modifier = Modifier.padding(bottom = 8.dp), style = MaterialTheme.typography.bodyMedium ) OutlinedTextField(value = name, onValueChange = onNameChange, label = { Text("Name") }) } }<div class="devsite-github-link nocode no-select"><a target="_top" href="https://github.com/android/snippets/blob/f595a0d317fd8aca6b33d4344bf87696cd45c481/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#L95-L112" class="gc-analytics-event" data-category="github_link" data-label="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#android_compose_state_hoisting" data-code-snippet="true" data-git-revision="main" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_hoisting">StateOverviewSnippets.kt</a></div></pre></devsite-code> By hoisting the state out of <code translate="no" dir="ltr">HelloContent</code>, it's easier to reason about the composable, reuse it in different situations, and test. <code translate="no" dir="ltr">HelloContent</code> is decoupled from how its state is stored. Decoupling means that if you modify or replace <code translate="no" dir="ltr">HelloScreen</code>, you don't have to change how <code translate="no" dir="ltr">HelloContent</code> is implemented. <figure> <img src="/static/develop/ui/compose/images/udf-hello-screen.png" class="screenshot" alt="" width="300"> </figure> The pattern where the state goes down, and events go up is called a unidirectional data flow. In this case, the state goes down from <code translate="no" dir="ltr">HelloScreen</code> to <code translate="no" dir="ltr">HelloContent</code> and events go up from <code translate="no" dir="ltr">HelloContent</code> to <code translate="no" dir="ltr">HelloScreen</code>. By following unidirectional data flow, you can decouple composables that display state in the UI from the parts of your app that store and change state. <aside class="key-point">Key Point: When hoisting state, there are three rules to help you figure out where state should go: <ol> <li>State should be hoisted to at least the lowest common parent of all composables that use the state (read).</li> <li>State should be hoisted to at least the highest level it may be changed (write).</li> <li>If two states change in response to the same events they should be hoisted together.</li> </ol> You can hoist state higher than these rules require, but underhoisting state makes it difficult or impossible to follow unidirectional data flow. </aside> See the <a href="/develop/ui/compose/state-hoisting">Where to hoist state</a> page to learn more. <h2 id="restore-ui-state" data-text="Restoring state in Compose" tabindex="-1">Restoring state in Compose</h2> The <a href="/reference/kotlin/androidx/compose/runtime/saveable/package-summary#rememberSaveable(kotlin.Array,androidx.compose.runtime.saveable.Saver,kotlin.String,kotlin.Function0)"><code translate="no" dir="ltr">rememberSaveable</code></a> API behaves similarly to <code translate="no" dir="ltr">remember</code> because it retains state across recompositions, and also across activity or process recreation using the saved instance state mechanism. For example, this happens, when the screen is rotated. <aside class="note">Note: <code translate="no" dir="ltr">rememberSaveable</code> will not retain state if the activity is <a href="/topic/libraries/architecture/saving-states#ui-dismissal-user">completely dismissed by the user</a>. For example, it does not retain state if the user swipes the current activity up from the <a href="/guide/components/activities/recents">recents screen</a>.</aside> <h3 id="ways-to-store" data-text="Ways to store state" tabindex="-1">Ways to store state</h3> All data types that are added to the <code translate="no" dir="ltr">Bundle</code> are saved automatically. If you want to save something that cannot be added to the <code translate="no" dir="ltr">Bundle</code>, there are several options. <h4 id="parcelize" data-text="Parcelize" tabindex="-1">Parcelize</h4> The simplest solution is to add the <a href="https://github.com/Kotlin/KEEP/blob/master/proposals/extensions/android-parcelable.md" class="external"><code translate="no" dir="ltr">@Parcelize</code></a> annotation to the object. The object becomes parcelable, and can be bundled. For example, this code makes a parcelable <code translate="no" dir="ltr">City</code> data type and saves it to the state. <div></div><devsite-code><pre id="android_compose_state_restoring_parcelize-code-sample" data-scope="android_compose_state_restoring_parcelize" data-code-snippet="true" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_restoring_parcelize" data-copy-event-label="android_compose_state_restoring_parcelize-StateOverviewSnippets" class="devsite-click-to-copy notranslate" dir="ltr" is-upgraded syntax="Kotlin">@Parcelize data class City(val name: String, val country: String) : Parcelable @Composable fun CityScreen() { var selectedCity = rememberSaveable { mutableStateOf(City("Madrid", "Spain")) } }<div class="devsite-github-link nocode no-select"><a target="_top" href="https://github.com/android/snippets/blob/f595a0d317fd8aca6b33d4344bf87696cd45c481/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#L118-L126" class="gc-analytics-event" data-category="github_link" data-label="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#android_compose_state_restoring_parcelize" data-code-snippet="true" data-git-revision="main" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_restoring_parcelize">StateOverviewSnippets.kt</a></div></pre></devsite-code> <h4 id="mapsaver" data-text="MapSaver" tabindex="-1">MapSaver</h4> If for some reason <code translate="no" dir="ltr">@Parcelize</code> is not suitable, you can use <code translate="no" dir="ltr">mapSaver</code> to define your own rule for converting an object into a set of values that the system can save to the <code translate="no" dir="ltr">Bundle</code>. <div></div><devsite-code><pre id="android_compose_state_restoring_mapSaver-code-sample" data-scope="android_compose_state_restoring_mapSaver" data-code-snippet="true" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_restoring_mapSaver" data-copy-event-label="android_compose_state_restoring_mapSaver-StateOverviewSnippets" class="devsite-click-to-copy notranslate" dir="ltr" is-upgraded syntax="Kotlin">data class City(val name: String, val country: String) val CitySaver = run { val nameKey = "Name" val countryKey = "Country" mapSaver( save = { mapOf(nameKey to it.name, countryKey to it.country) }, restore = { City(it[nameKey] as String, it[countryKey] as String) } ) } @Composable fun CityScreen() { var selectedCity = rememberSaveable(stateSaver = CitySaver) { mutableStateOf(City("Madrid", "Spain")) } }<div class="devsite-github-link nocode no-select"><a target="_top" href="https://github.com/android/snippets/blob/f595a0d317fd8aca6b33d4344bf87696cd45c481/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#L132-L148" class="gc-analytics-event" data-category="github_link" data-label="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#android_compose_state_restoring_mapSaver" data-code-snippet="true" data-git-revision="main" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_restoring_mapSaver">StateOverviewSnippets.kt</a></div></pre></devsite-code> <h4 id="listsaver" data-text="ListSaver" tabindex="-1">ListSaver</h4> To avoid needing to define the keys for the map, you can also use <code translate="no" dir="ltr">listSaver</code> and use its indices as keys: <div></div><devsite-code><pre id="android_compose_state_restoring_listSaver-code-sample" data-scope="android_compose_state_restoring_listSaver" data-code-snippet="true" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_restoring_listSaver" data-copy-event-label="android_compose_state_restoring_listSaver-StateOverviewSnippets" class="devsite-click-to-copy notranslate" dir="ltr" is-upgraded syntax="Kotlin">data class City(val name: String, val country: String) val CitySaver = listSaver<City, Any>( save = { listOf(it.name, it.country) }, restore = { City(it[0] as String, it[1] as String) } ) @Composable fun CityScreen() { var selectedCity = rememberSaveable(stateSaver = CitySaver) { mutableStateOf(City("Madrid", "Spain")) } }<div class="devsite-github-link nocode no-select"><a target="_top" href="https://github.com/android/snippets/blob/f595a0d317fd8aca6b33d4344bf87696cd45c481/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#L155-L167" class="gc-analytics-event" data-category="github_link" data-label="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#android_compose_state_restoring_listSaver" data-code-snippet="true" data-git-revision="main" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_restoring_listSaver">StateOverviewSnippets.kt</a></div></pre></devsite-code> <h2 id="managing-state" data-text="State holders in Compose" tabindex="-1">State holders in Compose</h2> Simple state hoisting can be managed in the composable functions itself. However, if the amount of state to keep track of increases, or the logic to perform in composable functions arises, it's a good practice to delegate the logic and state responsibilities to other classes: state holders. <aside class="key-term"> Key Term: State holders manage logic and state of composables. Note that in other materials, state holders are also called hoisted state objects. </aside> See the <a href="/develop/ui/compose/state-hoisting">state hoisting in Compose</a> documentation or, more generally, the <a href="/topic/architecture/ui-layer/stateholders">State holders and UI State</a> page in the architecture guide to learn more. <h2 id="retrigger-remember" data-text="Retrigger remember calculations when keys change" tabindex="-1">Retrigger remember calculations when keys change</h2> The <a href="/reference/kotlin/androidx/compose/runtime/package-summary#remember(kotlin.Any,kotlin.Any,kotlin.Any,kotlin.Function0)"><code translate="no" dir="ltr">remember</code></a> API is frequently used together with <a href="/reference/kotlin/androidx/compose/runtime/MutableState"><code translate="no" dir="ltr">MutableState</code></a>: <div></div><devsite-code><pre id="android_compose_state_remember_definition-code-sample" data-scope="android_compose_state_remember_definition" data-code-snippet="true" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_remember_definition" data-copy-event-label="android_compose_state_remember_definition-StateOverviewSnippets" class="devsite-click-to-copy notranslate" dir="ltr" is-upgraded syntax="Kotlin">var name by remember { mutableStateOf("") }<div class="devsite-github-link nocode no-select"><a target="_top" href="https://github.com/android/snippets/blob/f595a0d317fd8aca6b33d4344bf87696cd45c481/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#L174-L174" class="gc-analytics-event" data-category="github_link" data-label="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#android_compose_state_remember_definition" data-code-snippet="true" data-git-revision="main" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_remember_definition">StateOverviewSnippets.kt</a></div></pre></devsite-code> Here, using the <code translate="no" dir="ltr">remember</code> function makes the <code translate="no" dir="ltr">MutableState</code> value survive recompositions. In general, <code translate="no" dir="ltr">remember</code> takes a <code translate="no" dir="ltr">calculation</code> lambda parameter. When <code translate="no" dir="ltr">remember</code> is first run, it invokes the <code translate="no" dir="ltr">calculation</code> lambda and stores its result. During recomposition, <code translate="no" dir="ltr">remember</code> returns the value that was last stored. Apart from caching state, you can also use <code translate="no" dir="ltr">remember</code> to store any object or result of an operation in the Composition that is expensive to initialize or calculate. You might not want to repeat this calculation in every recomposition. An example is creating this <a href="/reference/kotlin/androidx/compose/ui/graphics/ShaderBrush"><code translate="no" dir="ltr">ShaderBrush</code></a> object, which is an expensive operation: <div></div><devsite-code><pre id="android_compose_state_remember_brush-code-sample" data-scope="android_compose_state_remember_brush" data-code-snippet="true" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_remember_brush" data-copy-event-label="android_compose_state_remember_brush-StateOverviewSnippets" class="devsite-click-to-copy notranslate" dir="ltr" is-upgraded syntax="Kotlin">val brush = remember { ShaderBrush( BitmapShader( ImageBitmap.imageResource(res, avatarRes).asAndroidBitmap(), Shader.TileMode.REPEAT, Shader.TileMode.REPEAT ) ) }<div class="devsite-github-link nocode no-select"><a target="_top" href="https://github.com/android/snippets/blob/f595a0d317fd8aca6b33d4344bf87696cd45c481/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#L183-L191" class="gc-analytics-event" data-category="github_link" data-label="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#android_compose_state_remember_brush" data-code-snippet="true" data-git-revision="main" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_remember_brush">StateOverviewSnippets.kt</a></div></pre></devsite-code> <code translate="no" dir="ltr">remember</code> stores the value until it leaves the Composition. However, there is a way to invalidate the cached value. The <code translate="no" dir="ltr">remember</code> API also takes a <code translate="no" dir="ltr">key</code> or <code translate="no" dir="ltr">keys</code> parameter. If any of these keys change, the next time the function recomposes, <code translate="no" dir="ltr">remember</code> invalidates the cache and executes the calculation lambda block again. This mechanism gives you control over the lifetime of an object in the Composition. The calculation remains valid until the inputs change, instead of until the remembered value leaves the Composition. The following examples show how this mechanism works. In this snippet, a <a href="/reference/kotlin/androidx/compose/ui/graphics/ShaderBrush"><code translate="no" dir="ltr">ShaderBrush</code></a> is created and used as the background paint of a <code translate="no" dir="ltr">Box</code> composable. <code translate="no" dir="ltr">remember</code> stores the <a href="/reference/kotlin/androidx/compose/ui/graphics/ShaderBrush"><code translate="no" dir="ltr">ShaderBrush</code></a> instance because it is expensive to recreate, as explained earlier. <code translate="no" dir="ltr">remember</code> takes <code translate="no" dir="ltr">avatarRes</code> as the <code translate="no" dir="ltr">key1</code> parameter, which is the selected background image. If <code translate="no" dir="ltr">avatarRes</code> changes, the brush recomposes with the new image, and reapplies to the <code translate="no" dir="ltr">Box</code>. This can occur when the user selects another image to be the background from a picker. <div></div><devsite-code><pre id="android_compose_state_remember_keys_brush-code-sample" data-scope="android_compose_state_remember_keys_brush" data-code-snippet="true" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_remember_keys_brush" data-copy-event-label="android_compose_state_remember_keys_brush-StateOverviewSnippets" class="devsite-click-to-copy notranslate" dir="ltr" is-upgraded syntax="Kotlin">@Composable private fun BackgroundBanner( @DrawableRes avatarRes: Int, modifier: Modifier = Modifier, res: Resources = LocalContext.current.resources ) { val brush = remember(key1 = avatarRes) { ShaderBrush( BitmapShader( ImageBitmap.imageResource(res, avatarRes).asAndroidBitmap(), Shader.TileMode.REPEAT, Shader.TileMode.REPEAT ) ) } Box( modifier = modifier.background(brush) ) { /* ... */ } }<div class="devsite-github-link nocode no-select"><a target="_top" href="https://github.com/android/snippets/blob/f595a0d317fd8aca6b33d4344bf87696cd45c481/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#L196-L217" class="gc-analytics-event" data-category="github_link" data-label="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#android_compose_state_remember_keys_brush" data-code-snippet="true" data-git-revision="main" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_remember_keys_brush">StateOverviewSnippets.kt</a></div></pre></devsite-code> In the next snippet, state is hoisted to a <a href="/topic/architecture/ui-layer/stateholders#choose_between_a_viewmodel_and_plain_class_for_a_state_holder">plain state holder class</a> <code translate="no" dir="ltr">MyAppState</code>. It exposes a <code translate="no" dir="ltr">rememberMyAppState</code> function to initialize an instance of the class using <code translate="no" dir="ltr">remember</code>. Exposing such functions to create an instance that survives recompositions is a common pattern in Compose. The <code translate="no" dir="ltr">rememberMyAppState</code> function receives <a href="/reference/kotlin/androidx/compose/material3/windowsizeclass/WindowSizeClass"><code translate="no" dir="ltr">windowSizeClass</code></a>, which serves as the <code translate="no" dir="ltr">key</code> parameter for <code translate="no" dir="ltr">remember</code>. If this parameter changes, the app needs to recreate the plain state holder class with the latest value. This may occur if, for example, the user rotates the device. <div></div><devsite-code><pre id="android_compose_state_remember_keys_app_state-code-sample" data-scope="android_compose_state_remember_keys_app_state" data-code-snippet="true" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_remember_keys_app_state" data-copy-event-label="android_compose_state_remember_keys_app_state-StateOverviewSnippets" class="devsite-click-to-copy notranslate" dir="ltr" is-upgraded syntax="Kotlin">@Composable private fun rememberMyAppState( windowSizeClass: WindowSizeClass ): MyAppState { return remember(windowSizeClass) { MyAppState(windowSizeClass) } } @Stable class MyAppState( private val windowSizeClass: WindowSizeClass ) { /* ... */ }<div class="devsite-github-link nocode no-select"><a target="_top" href="https://github.com/android/snippets/blob/f595a0d317fd8aca6b33d4344bf87696cd45c481/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#L221-L233" class="gc-analytics-event" data-category="github_link" data-label="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#android_compose_state_remember_keys_app_state" data-code-snippet="true" data-git-revision="main" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_remember_keys_app_state">StateOverviewSnippets.kt</a></div></pre></devsite-code> <aside class="note">Note: For more information about plain state holder classes, see the <a href="/develop/ui/compose/state-hoisting#plain-state">Plain state holder class as state owner</a> documentation, or the <a href="/topic/architecture/ui-layer/stateholders">State holders and UI State</a> documentation in the Architecture guide.</aside> Compose uses the class's <a href="/reference/java/lang/Object#equals(java.lang.Object)">equals</a> implementation to decide if a key has changed and invalidate the stored value. <aside class="note">Note: At first glance, using <code translate="no" dir="ltr">remember</code> with keys might seem similar to using other Compose APIs, like <a href="/reference/kotlin/androidx/compose/runtime/package-summary#derivedStateOf(kotlin.Function0)"><code translate="no" dir="ltr">derivedStateOf</code></a>. See the <a href="https://medium.com/androiddevelopers/jetpack-compose-when-should-i-use-derivedstateof-63ce7954c11b" class="external">Jetpack Compose — When should I use derivedStateOf?</a> blog post to learn about the difference.</aside> <h3 id="store-state" data-text="Store state with keys beyond recomposition" tabindex="-1">Store state with keys beyond recomposition</h3> The <a href="/reference/kotlin/androidx/compose/runtime/saveable/package-summary#rememberSaveable(kotlin.Array,androidx.compose.runtime.saveable.Saver,kotlin.String,kotlin.Function0)"><code translate="no" dir="ltr">rememberSaveable</code></a> API is a wrapper around <code translate="no" dir="ltr">remember</code> that can store data in a <a href="/reference/android/os/Bundle"><code translate="no" dir="ltr">Bundle</code></a>. This API allows state to survive not only recomposition, but also activity recreation and system-initiated process death. <code translate="no" dir="ltr">rememberSaveable</code> receives <code translate="no" dir="ltr">input</code> parameters for the same purpose that <code translate="no" dir="ltr">remember</code> receives <code translate="no" dir="ltr">keys</code>. The cache is invalidated when any of the inputs change. The next time the function recomposes, <code translate="no" dir="ltr">rememberSaveable</code> re-executes the calculation lambda block. <aside class="note">Note: There is a difference in API naming that you should note. In the <code translate="no" dir="ltr">remember</code> API, you use the parameter name <code translate="no" dir="ltr">keys</code>, and in <code translate="no" dir="ltr">rememberSaveable</code> you use <code translate="no" dir="ltr">inputs</code> for the same purpose. If any of these parameters changes, the cached value is invalidated.</aside> In the following example, <code translate="no" dir="ltr">rememberSaveable</code> stores <code translate="no" dir="ltr">userTypedQuery</code> until <code translate="no" dir="ltr">typedQuery</code> changes: <div></div><devsite-code><pre id="android_compose_state_rememberSaveable_keys-code-sample" data-scope="android_compose_state_rememberSaveable_keys" data-code-snippet="true" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_rememberSaveable_keys" data-copy-event-label="android_compose_state_rememberSaveable_keys-StateOverviewSnippets" class="devsite-click-to-copy notranslate" dir="ltr" is-upgraded syntax="Kotlin">var userTypedQuery by rememberSaveable(typedQuery, stateSaver = TextFieldValue.Saver) { mutableStateOf( TextFieldValue(text = typedQuery, selection = TextRange(typedQuery.length)) ) }<div class="devsite-github-link nocode no-select"><a target="_top" href="https://github.com/android/snippets/blob/f595a0d317fd8aca6b33d4344bf87696cd45c481/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#L240-L244" class="gc-analytics-event" data-category="github_link" data-label="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt#android_compose_state_rememberSaveable_keys" data-code-snippet="true" data-git-revision="main" data-github-path="android/snippets/compose/snippets/src/main/java/com/example/compose/snippets/state/StateOverviewSnippets.kt" data-region-tag="android_compose_state_rememberSaveable_keys">StateOverviewSnippets.kt</a></div></pre></devsite-code> <h2 id="learn-more" data-text="Learn more" tabindex="-1">Learn more</h2> To learn more about state and Jetpack Compose, consult the following additional resources. <h3 id="samples" data-text="Samples" tabindex="-1">Samples</h3> <devsite-dynamic-content initial-results="3" maxresults="24" query="type:sample +category:JetpackComposeArchitectureAndState +-title:Architecture" sortorder="recency" template="card"> </devsite-dynamic-content> <h3 id="codelabs" data-text="Codelabs" tabindex="-1">Codelabs</h3> <ul> <li><a href="https://codelabs.developers.google.com/codelabs/jetpack-compose-state/index.html?index=..%2F..index#0" class="external">Using State in Jetpack Compose</a> </li> </ul> <h3 id="videos" data-text="Videos" tabindex="-1">Videos</h3> <ul> <li><a href="https://www.youtube.com/watch?v=rmv2ug-wW4U">A Compose state of mind</a></li> </ul> <h3 id="blogs" data-text="Blogs" tabindex="-1">Blogs</h3> <ul> <li><a href="https://medium.com/androiddevelopers/effective-state-management-for-textfield-in-compose-d6e5b070fbe5" class="external">Effective State Management for <code translate="no" dir="ltr">TextField</code> in Compose</a> </li> </ul> <devsite-recommendations> <h2 id="recommended_for_you" data-text="Recommended for you" tabindex="-1">Recommended for you</h2> <ul> <li>Note: link text is displayed when JavaScript is off</li> <li><a href="/develop/ui/compose/architecture">Architecting your Compose UI</a></li> <li><a href="/develop/ui/compose/state-saving">Save UI state in Compose</a></li> <li><a href="/develop/ui/compose/side-effects">Side-effects in Compose</a></li> </ul> </devsite-recommendations> <devsite-hats-survey class="nocontent" hats-id="m71UDKaJT0kxBYCLVTd0U6CJGcqa" listnr-id="5207477"></devsite-hats-survey> </div> <devsite-recommendations display="in-page" hidden yield> </devsite-recommendations> <devsite-thumb-rating position="footer"> </devsite-thumb-rating> <devsite-recommendations id="recommendations-link" yield></devsite-recommendations> <div class="devsite-floating-action-buttons"> </div> </article> <devsite-content-footer class="nocontent"> Content and code samples on this page are subject to the licenses described in the <a href="/license">Content License</a>. 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