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<!doctype html><html lang="en"><head><meta charset="utf-8"><title>Who is Dash? | Flutter</title><link rel="icon" href="/assets/images/branding/flutter/icon/64.png"><link rel="apple-touch-icon" href="/assets/images/branding/flutter/logo/flutter-logomark-320px.png"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#ffffff"><link rel="preconnect" href="https://fonts.googleapis.com"><link rel="preconnect" href="https://fonts.gstatic.com" crossorigin><meta name="google-site-verification" content="HFqxhSbf9YA_0rBglNLzDiWnrHiK_w4cqDh2YD2GEY4"><script>window.dataLayer=window.dataLayer||[]</script><script>!function(e,t,a,n){e[n]=e[n]||[],e[n].push({"gtm.start":(new Date).getTime(),event:"gtm.js"});var 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data-toggle="collapse" data-target="#sidenav-5-1" role="button" aria-expanded="false" aria-controls="sidenav-5-1"><span>AI</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-5-1"><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-5-1-1" role="button" aria-expanded="false" aria-controls="sidenav-5-1-1"><span>AI Toolkit guide</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-5-1-1"><li class="nav-item"><a class="nav-link" href="/ai-toolkit"><div><span>Overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ai-toolkit/user-experience"><div><span>User experience</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ai-toolkit/feature-integration"><div><span>Feature integration</span></div></a></li><li class="nav-item"><a 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class="nav-item"><a class="nav-link" href="https://firebase.google.com/docs/flutter" target="_blank" rel="noopener"><div><span>Discover Firebase for Flutter</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://www.youtube.com/watch?v=wUSkeTaBonA" target="_blank" rel="noopener"><div><span>Get to know Firebase for Flutter</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://firebase.google.com/codelabs/firebase-auth-in-flutter-apps" target="_blank" rel="noopener"><div><span>Add a user authentication flow to a Flutter app using FirebaseUI</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://firebase.google.com/codelabs/firebase-get-to-know-web" target="_blank" rel="noopener"><div><span>Get to know Firebase for web</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-5-3" role="button" aria-expanded="false" aria-controls="sidenav-5-3"><span>Games</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-5-3"><li class="nav-item"><a class="nav-link" href="/resources/games-toolkit"><div><span>Overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/games/achievements-leaderboard"><div><span>Add achievements and leaderboards</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://firebase.google.com/codelabs/build-leaderboards-with-firestore#0" target="_blank" rel="noopener"><div><span>Build leaderboards with Firestore</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/plugins/google-mobile-ads"><div><span>Add advertising</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/games/firestore-multiplayer"><div><span>Add multiplayer support</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://codelabs.developers.google.com/codelabs/flutter-in-app-purchases" target="_blank" rel="noopener"><div><span>Add in-app purchases</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://firebase.google.com/codelabs/firebase-auth-in-flutter-apps" target="_blank" rel="noopener"><div><span>Add user authentication</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://firebase.google.com/docs/crashlytics/get-started?platform=flutter" target="_blank" rel="noopener"><div><span>Debug using Crashlytics</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://codelabs.developers.google.com/codelabs/flutter-flame-brick-breaker" target="_blank" rel="noopener"><div><span>Intro to Flame with Flutter</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-5-4" role="button" aria-expanded="false" aria-controls="sidenav-5-4"><span>Monetization</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-5-4"><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-5-4-1" role="button" aria-expanded="false" aria-controls="sidenav-5-4-1"><span>Advertising</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-5-4-1"><li class="nav-item"><a class="nav-link" href="/resources/ads-overview"><div><span>Ads overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/plugins/google-mobile-ads"><div><span>Add advertising</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://codelabs.developers.google.com/codelabs/admob-ads-in-flutter" target="_blank" rel="noopener"><div><span>Add AdMob ads to your Flutter app</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://codelabs.developers.google.com/codelabs/admob-inline-ads-in-flutter" target="_blank" rel="noopener"><div><span>Add an AdMob banner and native inline ads</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://www.youtube.com/watch?v=U8x5n6RwZOo" target="_blank" rel="noopener"><div><span>Integrate multimedia ads (video)</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://developers.google.com/admob/flutter/mediation" target="_blank" rel="noopener"><div><span>Google AdMob mediation</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/packages/interactive_media_ads" target="_blank" rel="noopener"><div><span>Interactive Media Ads SDK</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-5-4-2" role="button" aria-expanded="false" aria-controls="sidenav-5-4-2"><span>In-app purchases</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-5-4-2"><li class="nav-item"><a class="nav-link" href="/resources/in-app-purchases-overview"><div><span>In-app purchases overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://codelabs.developers.google.com/codelabs/flutter-in-app-purchases" target="_blank" rel="noopener"><div><span>Add in-app purchases</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-5-4-3" role="button" aria-expanded="false" aria-controls="sidenav-5-4-3"><span>Payments</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-5-4-3"><li class="nav-item"><a class="nav-link" href="/resources/payments-overview"><div><span>Payments overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/packages/pay" target="_blank" rel="noopener"><div><span>Google pay package</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li></ul></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-5-5" role="button" aria-expanded="false" aria-controls="sidenav-5-5"><span>Maps</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-5-5"><li class="nav-item"><a class="nav-link" href="https://codelabs.developers.google.com/codelabs/google-maps-in-flutter" target="_blank" rel="noopener"><div><span>Add Google maps to a Flutter app</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://developers.google.com/maps/flutter-package" target="_blank" rel="noopener"><div><span>Google Maps package</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-5-6" role="button" aria-expanded="false" aria-controls="sidenav-5-6"><span>News</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-5-6"><li class="nav-item"><a class="nav-link" href="/resources/news-toolkit"><div><span>Build a news app</span></div></a></li></ul></li></ul></li><li aria-hidden="true"><div class="sidenav-divider"></div></li><li class="nav-header">User interface</li><li class="nav-item"><a class="nav-link" href="/ui"><div><span>Introduction</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/widgets"><div><span>Widget catalog</span></div></a></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-10" role="button" aria-expanded="false" aria-controls="sidenav-10"><span>Layout</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-10"><li class="nav-item"><a class="nav-link" href="/ui/layout"><div><span>Introduction</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/layout/tutorial"><div><span>Build a layout</span></div></a></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-10-3" role="button" aria-expanded="false" aria-controls="sidenav-10-3"><span>Lists & grids</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-10-3"><li class="nav-item"><a class="nav-link" href="/cookbook/lists/basic-list"><div><span>Create and use lists</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/horizontal-list"><div><span>Create a horizontal list</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/grid-lists"><div><span>Create a grid view</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/mixed-list"><div><span>Create lists with different types of items</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/spaced-items"><div><span>Create lists with spaced items</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/long-lists"><div><span>Work with long lists</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-10-4" role="button" aria-expanded="false" aria-controls="sidenav-10-4"><span>Scrolling</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-10-4"><li class="nav-item"><a class="nav-link" href="/ui/layout/scrolling"><div><span>Overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/layout/scrolling/slivers"><div><span>Use slivers to achieve fancy scrolling</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/floating-app-bar"><div><span>Place a floating app bar above a list</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/effects/parallax-scrolling"><div><span>Create a scrolling parallax effect</span></div></a></li></ul></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-11" role="button" aria-expanded="false" aria-controls="sidenav-11"><span>Adaptive & responsive design</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-11"><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive"><div><span>Overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/general"><div><span>General approach</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/safearea-mediaquery"><div><span>SafeArea & MediaQuery</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/large-screens"><div><span>Large screens & foldables</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/input"><div><span>User input & accessibility</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/capabilities"><div><span>Capabilities & policies</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/platform-adaptations"><div><span>Automatic platform adaptations</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/best-practices"><div><span>Best practices</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/more-info"><div><span>Additional resources</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-12" role="button" aria-expanded="false" aria-controls="sidenav-12"><span>Design & theming</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-12"><li class="nav-item"><a class="nav-link" href="/cookbook/design/themes"><div><span>Share styles with themes</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/design/material"><div><span>Material design</span></div></a></li><li class="nav-item"><a class="nav-link" href="/release/breaking-changes/material-3-migration"><div><span>Migrate to Material 3</span></div></a></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-12-4" role="button" aria-expanded="false" aria-controls="sidenav-12-4"><span>Text</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-12-4"><li class="nav-item"><a class="nav-link" href="/ui/design/text/typography"><div><span>Fonts & typography</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/fonts"><div><span>Use a custom font</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/package-fonts"><div><span>Export fonts from a package</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/packages/google_fonts" target="_blank" rel="noopener"><div><span>Google Fonts package</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-12-5" role="button" aria-expanded="false" aria-controls="sidenav-12-5"><span>Custom graphics</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-12-5"><li class="nav-item"><a class="nav-link" href="/ui/design/graphics/fragment-shaders"><div><span>Use custom fragment shaders</span></div></a></li></ul></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-13" role="button" aria-expanded="false" aria-controls="sidenav-13"><span>Interactivity</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-13"><li class="nav-item"><a class="nav-link" href="/ui/interactivity"><div><span>Add interactivity to your app</span></div></a></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-13-2" role="button" aria-expanded="false" aria-controls="sidenav-13-2"><span>Gestures</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-13-2"><li class="nav-item"><a class="nav-link" href="/ui/interactivity/gestures"><div><span>Introduction</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/gestures/handling-taps"><div><span>Handle taps</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/interactivity/gestures/drag-outside"><div><span>Drag an object outside an app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/effects/drag-a-widget"><div><span>Drag a UI element within an app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/gestures/ripples"><div><span>Add Material touch ripples</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/gestures/dismissible"><div><span>Implement swipe to dismiss</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-13-3" role="button" aria-expanded="false" aria-controls="sidenav-13-3"><span>Input & forms</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-13-3"><li class="nav-item"><a class="nav-link" href="/cookbook/forms/text-input"><div><span>Create and style a text field</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/retrieve-input"><div><span>Retrieve the value of a text field</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/text-field-changes"><div><span>Handle changes to a text field</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/focus"><div><span>Manage focus in text fields</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/validation"><div><span>Build a form with validation</span></div></a></li></ul></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/snackbars"><div><span>Display a snackbar</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/interactivity/actions-and-shortcuts"><div><span>Implement actions & shortcuts</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/interactivity/focus"><div><span>Manage keyboard focus</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-14" role="button" aria-expanded="false" aria-controls="sidenav-14"><span>Assets & media</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-14"><li class="nav-item"><a class="nav-link" href="/ui/assets/assets-and-images"><div><span>Add assets and images</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/images/network-image"><div><span>Display images from the internet</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/images/fading-in-images"><div><span>Fade in images with a placeholder</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/plugins/play-video"><div><span>Play and pause a video</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/assets/asset-transformation"><div><span>Transform assets at build time</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-15" role="button" aria-expanded="false" aria-controls="sidenav-15"><span>Navigation & routing</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-15"><li class="nav-item"><a class="nav-link" href="/ui/navigation"><div><span>Overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/tabs"><div><span>Add tabs to your app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/navigation-basics"><div><span>Navigate to a new screen and back</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/passing-data"><div><span>Send data to a new screen</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/returning-data"><div><span>Return data from a screen</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/drawer"><div><span>Add a drawer to a screen</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/navigation/deep-linking"><div><span>Set up deep linking</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/set-up-app-links"><div><span>Set up app links for Android</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/set-up-universal-links"><div><span>Set up universal links for iOS</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/navigation/url-strategies"><div><span>Configure web URL strategies</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-16" role="button" aria-expanded="false" aria-controls="sidenav-16"><span>Animations & transitions</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-16"><li class="nav-item"><a class="nav-link" href="/ui/animations"><div><span>Introduction</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/tutorial"><div><span>Tutorial</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/implicit-animations"><div><span>Implicit animations</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/animated-container"><div><span>Animate the properties of a container</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/opacity-animation"><div><span>Fade a widget in and out</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/hero-animations"><div><span>Hero animations</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/page-route-animation"><div><span>Animate a page route transition</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/physics-simulation"><div><span>Animate using a physics simulation</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/staggered-animations"><div><span>Staggered animations</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/effects/staggered-menu-animation"><div><span>Create a staggered menu animation</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/overview"><div><span>API overview</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-17" role="button" aria-expanded="false" aria-controls="sidenav-17"><span>Accessibility & internationalization</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-17"><li class="nav-item"><a class="nav-link" href="/ui/accessibility-and-internationalization/accessibility"><div><span>Accessibility</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/accessibility-and-internationalization/internationalization"><div><span>Internationalization</span></div></a></li></ul></li><li aria-hidden="true"><div class="sidenav-divider"></div></li><li class="nav-header">Beyond UI</li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-20" role="button" aria-expanded="false" aria-controls="sidenav-20"><span>Data & backend</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-20"><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-20-1" role="button" aria-expanded="false" aria-controls="sidenav-20-1"><span>State management</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-20-1"><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/intro"><div><span>Introduction</span></div></a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/declarative"><div><span>Think declaratively</span></div></a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/ephemeral-vs-app"><div><span>Ephemeral vs app state</span></div></a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/simple"><div><span>Simple app state management</span></div></a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/options"><div><span>Options</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-20-2" role="button" aria-expanded="false" aria-controls="sidenav-20-2"><span>Networking & http</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-20-2"><li class="nav-item"><a class="nav-link" href="/data-and-backend/networking"><div><span>Overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/fetch-data"><div><span>Fetch data from the internet</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/authenticated-requests"><div><span>Make authenticated requests</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/send-data"><div><span>Send data to the internet</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/update-data"><div><span>Update data over the internet</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/delete-data"><div><span>Delete data on the internet</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/web-sockets"><div><span>Communicate with WebSockets</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-20-3" role="button" aria-expanded="false" aria-controls="sidenav-20-3"><span>Serialization</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-20-3"><li class="nav-item"><a class="nav-link" href="/data-and-backend/serialization/json"><div><span>JSON serialization</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/background-parsing"><div><span>Parse JSON in the background</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-20-4" role="button" aria-expanded="false" aria-controls="sidenav-20-4"><span>Persistence</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-20-4"><li class="nav-item"><a class="nav-link" href="/cookbook/persistence/key-value"><div><span>Store key-value data on disk</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/persistence/reading-writing-files"><div><span>Read and write files</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/persistence/sqlite"><div><span>Persist data with SQLite</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-20-5" role="button" aria-expanded="false" aria-controls="sidenav-20-5"><span>Firebase</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-20-5"><li class="nav-item"><a class="nav-link" href="/data-and-backend/firebase"><div><span>Overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://firebase.google.com/docs/flutter/setup" target="_blank" rel="noopener"><div><span>Add Firebase to your Flutter app</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li></ul></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/google-apis"><div><span>Google APIs</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-21" role="button" aria-expanded="false" aria-controls="sidenav-21"><span>App architecture</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-21"><li class="nav-item"><a class="nav-link" href="/app-architecture"><div><span>Introduction</span></div></a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/concepts"><div><span>Architecture concepts</span></div></a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/guide"><div><span>Guide to app architecture</span></div></a></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-21-4" role="button" aria-expanded="false" aria-controls="sidenav-21-4"><span>Architecture case study</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-21-4"><li class="nav-item"><a class="nav-link" href="/app-architecture/case-study"><div><span>Overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/case-study/ui-layer"><div><span>UI layer</span></div></a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/case-study/data-layer"><div><span>Data layer</span></div></a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/case-study/dependency-injection"><div><span>Dependency injection</span></div></a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/case-study/testing"><div><span>Testing each layer</span></div></a></li></ul></li><li class="nav-item"><a class="nav-link" href="/app-architecture/recommendations"><div><span>Recommendations</span></div></a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/design-patterns"><div><span>Design patterns</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-22" role="button" aria-expanded="false" aria-controls="sidenav-22"><span>Platform integration</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-22"><li class="nav-item"><a class="nav-link" href="/reference/supported-platforms"><div><span>Supported platforms</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/desktop"><div><span>Build desktop apps with Flutter</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/platform-channels"><div><span>Write platform-specific code</span></div></a></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-22-4" role="button" aria-expanded="false" aria-controls="sidenav-22-4"><span>Android</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-22-4"><li class="nav-item"><a class="nav-link" href="/platform-integration/android/install-android"><div><span>Add Android as build target</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/splash-screen"><div><span>Add a splash screen</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/predictive-back"><div><span>Add predictive back</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/c-interop"><div><span>Bind to native code</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/platform-views"><div><span>Host a native Android view</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/call-jetpack-apis"><div><span>Calling JetPack APIs</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/compose-activity"><div><span>Launch a Jetpack Compose activity</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/restore-state-android"><div><span>Restore state on Android</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/chromeos"><div><span>Target ChromeOS with Android</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-22-5" role="button" aria-expanded="false" aria-controls="sidenav-22-5"><span>iOS</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-22-5"><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/install-ios"><div><span>Add iOS as build target</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/ios-latest"><div><span>Flutter on latest iOS</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/apple-frameworks"><div><span>Leverage Apple's system libraries</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/launch-screen"><div><span>Add a launch screen</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/ios-app-clip"><div><span>Add iOS App Clip support</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/app-extensions"><div><span>Add iOS app extensions</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/c-interop"><div><span>Bind to native code</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/platform-views"><div><span>Host a native iOS view</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/ios-debugging"><div><span>Enable debugging on iOS</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/restore-state-ios"><div><span>Restore state on iOS</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-22-6" role="button" aria-expanded="false" aria-controls="sidenav-22-6"><span>Linux</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-22-6"><li class="nav-item"><a class="nav-link" href="/platform-integration/linux/install-linux"><div><span>Add Linux as build target</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/linux/building"><div><span>Build a Linux app</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-22-7" role="button" aria-expanded="false" aria-controls="sidenav-22-7"><span>macOS</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-22-7"><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/install-macos"><div><span>Add macOS as build target</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/building"><div><span>Build a macOS app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/c-interop"><div><span>Bind to native code</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/platform-views"><div><span>Host a native macOS view</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-22-8" role="button" aria-expanded="false" aria-controls="sidenav-22-8"><span>Web</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-22-8"><li class="nav-item"><a class="nav-link" href="/platform-integration/web"><div><span>Web support in Flutter</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/install-web"><div><span>Add web as build target</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/building"><div><span>Build a web app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/wasm"><div><span>Compile to WebAssembly</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/initialization"><div><span>Customize app initialization</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/embedding-flutter-web"><div><span>Add Flutter to any web app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/web-content-in-flutter"><div><span>Web content in Flutter</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/renderers"><div><span>Web renderers</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/web-images"><div><span>Display images on the web</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/faq"><div><span>Web FAQ</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-22-9" role="button" aria-expanded="false" aria-controls="sidenav-22-9"><span>Windows</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-22-9"><li class="nav-item"><a class="nav-link" href="/platform-integration/windows/install-windows"><div><span>Add Windows as build target</span></div></a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/windows/building"><div><span>Build a Windows app</span></div></a></li></ul></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-23" role="button" aria-expanded="false" aria-controls="sidenav-23"><span>Packages & plugins</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-23"><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/using-packages"><div><span>Use packages & plugins</span></div></a></li><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/developing-packages"><div><span>Develop packages & plugins</span></div></a></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-23-3" role="button" aria-expanded="false" aria-controls="sidenav-23-3"><span>Swift Package Manager</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-23-3"><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/swift-package-manager/for-app-developers"><div><span>For app developers</span></div></a></li><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/swift-package-manager/for-plugin-authors"><div><span>For plugin authors</span></div></a></li></ul></li><li aria-hidden="true"><div class="sidenav-divider"></div></li><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/favorites"><div><span>Flutter Favorites</span></div></a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/flutter" target="_blank" rel="noopener"><div><span>Package repository</span><span class="material-symbols" aria-hidden="true">open_in_new</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-24" role="button" aria-expanded="false" aria-controls="sidenav-24"><span>Testing & debugging</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-24"><li class="nav-header">Testing</li><li class="nav-item"><a class="nav-link" href="/testing/overview"><div><span>Overview</span></div></a></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-24-3" role="button" aria-expanded="false" aria-controls="sidenav-24-3"><span>Unit testing</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-24-3"><li class="nav-item"><a class="nav-link" href="/cookbook/testing/unit/introduction"><div><span>Introduction</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/unit/mocking"><div><span>Mock dependencies</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-24-4" role="button" aria-expanded="false" aria-controls="sidenav-24-4"><span>Widget testing</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-24-4"><li class="nav-item"><a class="nav-link" href="/cookbook/testing/widget/introduction"><div><span>Introduction</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/widget/finders"><div><span>Find widgets</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/widget/scrolling"><div><span>Simulate scrolling</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/widget/tap-drag"><div><span>Simulate user interaction</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-24-5" role="button" aria-expanded="false" aria-controls="sidenav-24-5"><span>Integration testing</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-24-5"><li class="nav-item"><a class="nav-link" href="/cookbook/testing/integration/introduction"><div><span>Introduction</span></div></a></li><li class="nav-item"><a class="nav-link" href="/testing/integration-tests"><div><span>Write and run an integration test</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/integration/profiling"><div><span>Profile an integration test</span></div></a></li></ul></li><li class="nav-item"><a class="nav-link" href="/testing/testing-plugins"><div><span>Test a plugin</span></div></a></li><li class="nav-item"><a class="nav-link" href="/testing/plugins-in-tests"><div><span>Handle plugin code in tests</span></div></a></li><li class="nav-header">Debugging</li><li class="nav-item"><a class="nav-link" href="/testing/debugging"><div><span>Debugging tools</span></div></a></li><li class="nav-item"><a class="nav-link" href="/testing/code-debugging"><div><span>Debug your app programmatically</span></div></a></li><li class="nav-item"><a class="nav-link" href="/testing/native-debugging"><div><span>Use a native language debugger</span></div></a></li><li class="nav-item"><a class="nav-link" href="/testing/common-errors"><div><span>Common Flutter errors</span></div></a></li><li class="nav-item"><a class="nav-link" href="/testing/errors"><div><span>Handle errors</span></div></a></li><li class="nav-item"><a class="nav-link" href="/cookbook/maintenance/error-reporting"><div><span>Report errors to a service</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-25" role="button" aria-expanded="false" aria-controls="sidenav-25"><span>Performance & optimization</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-25"><li class="nav-item"><a class="nav-link" href="/perf"><div><span>Overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/perf/impeller"><div><span>Impeller</span></div></a></li><li class="nav-item"><a class="nav-link" href="/perf/best-practices"><div><span>Performance best practices</span></div></a></li><li class="nav-item"><a class="nav-link" href="/perf/app-size"><div><span>App size</span></div></a></li><li class="nav-item"><a class="nav-link" href="/perf/deferred-components"><div><span>Deferred components</span></div></a></li><li class="nav-item"><a class="nav-link" href="/perf/rendering-performance"><div><span>Rendering performance</span></div></a></li><li class="nav-item"><a class="nav-link" href="/perf/ui-performance"><div><span>Performance profiling</span></div></a></li><li class="nav-item"><a class="nav-link" href="/perf/web-performance"><div><span>Performance profiling for web</span></div></a></li><li class="nav-item"><a class="nav-link" href="/perf/metrics"><div><span>Performance metrics</span></div></a></li><li class="nav-item"><a class="nav-link" href="/perf/isolates"><div><span>Concurrency and isolates</span></div></a></li><li class="nav-item"><a class="nav-link" href="/perf/faq"><div><span>Performance FAQ</span></div></a></li><li class="nav-item"><a class="nav-link" href="/perf/appendix"><div><span>Appendix</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-26" role="button" aria-expanded="false" aria-controls="sidenav-26"><span>Deployment</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-26"><li class="nav-item"><a class="nav-link" href="/deployment/obfuscate"><div><span>Obfuscate Dart code</span></div></a></li><li class="nav-item"><a class="nav-link" href="/deployment/flavors"><div><span>Create app flavors for Android</span></div></a></li><li class="nav-item"><a class="nav-link" href="/deployment/flavors-ios"><div><span>Create app flavors for iOS and macOS</span></div></a></li><li class="nav-item"><a class="nav-link" href="/deployment/android"><div><span>Build and release an Android app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/deployment/ios"><div><span>Build and release an iOS app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/deployment/macos"><div><span>Build and release a macOS app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/deployment/linux"><div><span>Build and release a Linux app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/deployment/windows"><div><span>Build and release a Windows app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/deployment/web"><div><span>Build and release a web app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/deployment/cd"><div><span>Set up continuous deployment</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-27" role="button" aria-expanded="false" aria-controls="sidenav-27"><span>Add to an existing app</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-27"><li class="nav-item"><a class="nav-link" href="/add-to-app"><div><span>Introduction</span></div></a></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-27-2" role="button" aria-expanded="false" aria-controls="sidenav-27-2"><span>Add to an Android app</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-27-2"><li class="nav-item"><a class="nav-link" href="/add-to-app/android/project-setup"><div><span>Set up Android project</span></div></a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/android/add-flutter-screen"><div><span>Add a single Flutter screen</span></div></a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/android/add-flutter-fragment"><div><span>Add a Flutter Fragment</span></div></a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/android/add-flutter-view"><div><span>Add a Flutter View</span></div></a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/android/plugin-setup"><div><span>Use a Flutter plugin</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-27-3" role="button" aria-expanded="false" aria-controls="sidenav-27-3"><span>Add to an iOS app</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-27-3"><li class="nav-item"><a class="nav-link" href="/add-to-app/ios/project-setup"><div><span>Set up iOS project</span></div></a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/ios/add-flutter-screen"><div><span>Add a single Flutter screen</span></div></a></li></ul></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/embedding-flutter-web"><div><span>Add to a web app</span></div></a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/debugging"><div><span>Debug embedded Flutter module</span></div></a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/multiple-flutters"><div><span>Add multiple Flutter instances</span></div></a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/performance"><div><span>Loading sequence and performance</span></div></a></li></ul></li><li aria-hidden="true"><div class="sidenav-divider"></div></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-29" role="button" aria-expanded="false" aria-controls="sidenav-29"><span>Tools & editors</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-29"><li class="nav-item"><a class="nav-link" href="/tools/android-studio"><div><span>Android Studio & IntelliJ</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/vs-code"><div><span>Visual Studio Code</span></div></a></li><li class="nav-item"><button class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#sidenav-29-3" role="button" aria-expanded="false" aria-controls="sidenav-29-3"><span>DevTools</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-29-3"><li class="nav-item"><a class="nav-link" href="/tools/devtools"><div><span>Overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/android-studio"><div><span>Run from Android Studio & IntelliJ</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/vscode"><div><span>Run from VS Code</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/cli"><div><span>Run from command line</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/inspector"><div><span>Flutter inspector</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/legacy-inspector"><div><span>Legacy Flutter inspector</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/performance"><div><span>Performance view</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/cpu-profiler"><div><span>CPU Profiler view</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/memory"><div><span>Memory view</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/console"><div><span>Debug console view</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/network"><div><span>Network view</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/debugger"><div><span>Debugger</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/logging"><div><span>Logging view</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/app-size"><div><span>App size tool</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/extensions"><div><span>DevTools extensions</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/deep-links"><div><span>Validate deep links</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/release-notes"><div><span>Release notes</span></div></a></li></ul></li><li class="nav-item"><a class="nav-link" href="/tools/sdk"><div><span>SDK overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/pubspec"><div><span>Flutter's pubspec options</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/flutter-fix"><div><span>Automated fixes</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/formatting"><div><span>Code formatting</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link collapsed collapsible" data-toggle="collapse" data-target="#sidenav-30" role="button" aria-expanded="false" aria-controls="sidenav-30"><span>Flutter concepts</span> <span class="material-symbols expander" aria-hidden="true">expand_more</span></button><ul class="nav collapse" id="sidenav-30"><li class="nav-item"><a class="nav-link" href="/resources/architectural-overview"><div><span>Architectural overview</span></div></a></li><li class="nav-item"><a class="nav-link" href="/resources/inside-flutter"><div><span>Inside Flutter</span></div></a></li><li class="nav-item"><a class="nav-link" href="/ui/layout/constraints"><div><span>Understanding constraints</span></div></a></li><li class="nav-item"><a class="nav-link" href="/testing/build-modes"><div><span>Flutter's build modes</span></div></a></li><li class="nav-item"><a class="nav-link" href="/tools/hot-reload"><div><span>Hot reload</span></div></a></li></ul></li><li class="nav-item"><button class="nav-link active collapsible" data-toggle="collapse" data-target="#sidenav-31" role="button" aria-expanded="true" 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aria-expanded="false" aria-controls="toc-dropdown" aria-label="Toggle the table of contents dropdown"><span class="toc-intro"><span class="material-symbols" aria-hidden="true">list</span> <span aria-label="On this page">On this page</span> </span><span class="toc-current"><span class="material-symbols" aria-hidden="true">chevron_right</span> <span id="current-header">Who is Dash?</span></span></button><div id="toc-dropdown" class="dropdown-content"><a href="#document-title" id="return-to-top"><span class="material-symbols" aria-hidden="true">vertical_align_top</span> <span>Who is Dash?</span></a><div aria-hidden="true" class="dropdown-divider" role="separator"></div><nav role="menu"><ul class="styled-toc-list"><li><span class="sidenav-item"><a href="#how-did-it-all-start">How did it all start?</a></span></li><li><span class="sidenav-item"><a href="#why-a-hummingbird">Why a hummingbird?</a></span></li><li><span class="sidenav-item"><a href="#dash-facts">Dash facts</a></span></li></ul></nav></div></div><aside id="side-menu"><nav id="toc-side" class="site-toc"><header><span class="material-symbols" aria-hidden="true">list</span> <span>On this page</span></header><ul class="styled-toc-list"><li><span class="sidenav-item"><a href="#how-did-it-all-start">How did it all start?</a></span></li><li><span class="sidenav-item"><a href="#why-a-hummingbird">Why a hummingbird?</a></span></li><li><span class="sidenav-item"><a href="#dash-facts">Dash facts</a></span></li></ul></nav></aside><article><header id="site-header-wrapper"><h1 id="document-title">Who is Dash?</h1><nav class="breadcrumbs" aria-label="breadcrumb"><ol vocab="https://schema.org/" typeof="BreadcrumbList"><li class="breadcrumb-item active" property="itemListElement" typeof="ListItem" aria-current="page"><a href="/dash" property="item" typeof="WebPage"><span property="name">Who is Dash?</span></a><meta property="position" content="0"></li></ol></nav></header><p>This is Dash:</p><p><img src="/assets/images/dash/Dash.png" alt="Dash by herself" width="50%"><br></p><p>Dash is the mascot for the Dart language and the Flutter framework.</p><aside class="alert alert-info"><div class="alert-header"><i class="material-symbols" aria-hidden="true">info</i> <span>Note</span></div><div class="alert-content"><p>You can now make your <strong>own</strong> digital Dash using <a href="https://dashatar-dev.web.app/#/">Dashatar</a>, a Flutter app for web and mobile!</p></div></aside><p><img src="/assets/images/dash/Dashatars.png" alt="A sample of Dashatars" width="100%"><br></p><p><img src="/assets/images/dash/dash-fainting.webp" alt="GIF of Dash fainting created for Flutter Engage"></p><div class="header-wrapper"><h2 id="how-did-it-all-start">How did it all start?</h2><a class="heading-link" href="#how-did-it-all-start" aria-label="Link to 'How did it all start?' section">#</a></div><p>As soon as Shams Zakhour started working as a Dart writer at Google in December 2013, she started advocating for a Dart mascot. After documenting Java for 14 years, she had observed how beloved the Java mascot, <a href="https://www.oracle.com/java/duke.html">Duke</a>, had become, and she wanted something similar for Dart.</p><p>But the idea didn't gain momentum until 2017, when one of the Flutter engineers, Nina Chen, suggested it on an internal mailing list. The Flutter VP at the time, Joshy Joseph, approved the idea and asked the organizer for the <a href="https://events.dartlang.org/2018/dartconf/">2018 Dart Conference</a>, Linda Rasmussen, to make it happen.</p><p>Once Shams heard about these plans, she rushed to Linda and asked to own and drive the project to produce the plushies for the conference. Linda had already elicited some design sketches, which she handed off. Starting with the sketches, Shams located a vendor who could work within an aggressive deadline (competing with Lunar New Year), and started the process of creating the specs for the plushy.</p><p>That's right, Dash was originally a <strong>Dart</strong> mascot, not a Flutter mascot.</p><p>Here are some early mockups and one of the first prototypes:</p><p><img src="/assets/images/dash/early-dash-sketches.png" alt="1st mockup made by Novicell.dk" width="35%"> <img src="/assets/images/dash/early-dash-sketches2.jpg" alt="2nd mockup by Squishable.com" width="35%"><br></p><p><img src="/assets/images/dash/early-dash-sketches3.jpg" alt="Prototype 1" width="35%"> <img src="/assets/images/dash/early-dash-sketches4.jpg" alt="Playing with embroidery ideas" width="35%"><br></p><p><img src="/assets/images/dash/early-dash-sketches5.jpg" alt="First prototype" width="50%"><br>The first prototype had uneven eyes</p><div class="header-wrapper"><h2 id="why-a-hummingbird">Why a hummingbird?</h2><a class="heading-link" href="#why-a-hummingbird" aria-label="Link to 'Why a hummingbird?' section">#</a></div><p>Early on, a hummingbird image was created for the Dart team to use for presentations and the web. The hummingbird represents that Dart is a speedy language.</p><p><img src="/assets/images/dash/DartHummingbird.jpg" alt="Early hummingbird drawing" width="35%"><br></p><p>However, hummingbirds are pointed and angular and we wanted a cuddly plushy, so we chose a round hummingbird.</p><p>Shams specified which color would go where, the tail shape, the tuft of hair, the eyes...all the little details. The vendor sent the specs to two manufacturers who returned the prototypes some weeks later.</p><p><img src="/assets/images/dash/dash-prototypes.jpg" alt="The first Dash prototypes" width="35%"> <img src="/assets/images/dash/dash-prototypes2.jpg" alt="The first Dash prototypes" width="35%"><br></p><lite-youtube videoid="R5vIUjRZaZA" videotitle="Introducing Dash at the January 2018 Dart Conference"><p><a class="lite-youtube-fallback" href="https://www.youtube.com/watch/R5vIUjRZaZA" target="_blank" rel="noopener">Watch on YouTube in a new tab: "Introducing Dash at the January 2018 Dart Conference"</a></p></lite-youtube><p>While the manufacturing process was proceeding, Shams chose a name for the plushy: Dash, because it was an early code name for the Dart project, it was gender neutral, and it seemed appropriate for a hummingbird.</p><p>Many boxes of Dash plushies arrived in southern California just in time for the conference. They were eagerly adopted by Dart <em>and</em> Flutter enthusiasts.</p><p>The people have spoken, so Dash is now the mascot for Flutter <strong>and</strong> Dart.</p><p><img src="/assets/images/dash/dash-1.0.jpg" alt="Dash 1.0" width="35%"><br>Dash 1.0</p><p><img src="/assets/images/dash/dash-conference-swag.jpg" alt="Piles of Dashes awaiting conference goers" width="50%"><br>Conference swag</p><p>Since the creation of Dash 1.0, we've made two more versions. Marketing slightly changed the Dart and Flutter color scheme after Dash 1.0 was created, so Dash 2.0 reflects the updated scheme (which removed the green color). Dash 2.1 is a smaller size and has a few more color tweaks. The smaller size is easier to ship, and fits better in a claw machine!</p><p><img src="/assets/images/dash/BigDashAndLittleDash.png" alt="Dash 2.0 and 2.1" width="50%"><br>Dash 2.0 and 2.1</p><p><img src="/assets/images/dash/DashClawMachine.png" alt="Flutter Interact claw machine" width="50%"><br></p><div class="header-wrapper"><h2 id="dash-facts">Dash facts</h2><a class="heading-link" href="#dash-facts" aria-label="Link to 'Dash facts' section">#</a></div><ul><li><p>Dash is female, but she doesn't mind being called <em>they</em>, <em>their</em>, <em>he</em>, or <em>him</em>.</p></li><li><p>Dash has an <a href="https://www.instagram.com/dash_the_dartlang_plushy/">Instagram account</a>.</p></li><li><p>Dash has a <strong>straight</strong> beak. <strong>Please, don't depict Dash with a curved beak.</strong></p></li><li><p>We also have Mega-Dash, a life-sized mascot who is currently resting in a Google office.</p><p><img src="/assets/images/dash/MegaDashChilling.png" alt="Mega-Dash in the office" width="50%"></p><p>Mega-Dash made her first appearance at the <a href="https://www.youtube.com/playlist?list=PLjxrf2q8roU0o0wKRJTjyN0pSUA6TI8lg">Flutter Interact</a> event in Brooklyn, New York, on December 11, 2019.</p></li></ul><lite-youtube videoid="EgBMGDtHZhE" videotitle="Flutter Interact 2019 highlights"><p><a class="lite-youtube-fallback" href="https://www.youtube.com/watch/EgBMGDtHZhE" target="_blank" rel="noopener">Watch on YouTube in a new tab: "Flutter Interact 2019 highlights"</a></p></lite-youtube><ul><li><p>We also have a Dash puppet that Shams made from one of the first plushies.</p><p><img src="/assets/images/dash/NilayDashPuppet.png" alt="Nilay and the Dash puppet" width="50%"></p><p>A number of our YouTube videos feature the Dash puppet, voiced by Emily Fortuna, one of the early (and much loved) Flutter Developer Advocates.</p></li></ul><lite-youtube videoid="oyy_1CjNdBU" videotitle="Building DashCast, a Flutter-based podcast app"><p><a class="lite-youtube-fallback" href="https://www.youtube.com/watch/oyy_1CjNdBU" target="_blank" rel="noopener">Watch on YouTube in a new tab: "Building DashCast, a Flutter-based podcast app"</a></p></lite-youtube><lite-youtube videoid="dsiLVNDJ3t0" videotitle="Revisiting DashCast, a Flutter-based podcast app"><p><a class="lite-youtube-fallback" href="https://www.youtube.com/watch/dsiLVNDJ3t0" target="_blank" rel="noopener">Watch on YouTube in a new tab: "Revisiting DashCast, a Flutter-based podcast app"</a></p></lite-youtube><p><img src="/assets/images/dash/ShamsDashJacket.png" alt="Born to Hot Reload jacket" width="35%"></p><div id="trailing-content"><div id="page-feedback"><div class="feedback initial-feedback"><div>Was this page's content helpful?</div><div class="feedback-buttons"><button id="feedback-up-button" class="icon-button" aria-label="Yes, this page was helpful" title="Helpful"><span class="material-symbols" aria-hidden="true">thumb_up</span></button> <button id="feedback-down-button" class="icon-button" aria-label="No, this page was not helpful or had an issue" title="Not helpful or had issue"><span class="material-symbols" aria-hidden="true">thumb_down</span></button></div></div><div class="feedback good-feedback"><div>Thank you for your feedback!</div><a href="https://github.com/flutter/website/issues/new?labels=from.page-feedback" class="text-button" aria-label="Provide feedback"><span class="material-symbols" aria-hidden="true">feedback</span> <span>Provide details</span></a></div><div class="feedback bad-feedback"><div>Thank you for your feedback! 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