CINXE.COM
Flutter - Beautiful native apps in record time
<!DOCTYPE html> <html lang="en"> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("https://flutter.dev/","20210329014543","https://web.archive.org/","web","/_static/", "1616982343"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" /> <!-- End Wayback Rewrite JS Include --> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Flutter - Beautiful native apps in record time </title> <link rel="shortcut icon" href="/web/20210329014543im_/https://flutter.dev/images/favicon.png"> <!-- Google Optimize --> <script src="https://web.archive.org/web/20210329014543js_/https://www.googleoptimize.com/optimize.js?id=GTM-MPZP6R8"></script> <!-- End Google Optimize --> <!-- Google Tag Manager --> <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://web.archive.org/web/20210329014543/https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-ND4LWWZ');</script> <!-- End Google Tag Manager --> <meta name="description" content="Flutter SDK is Google's UI toolkit for crafting beautiful, natively compiled applications for mobile, web, and desktop from a single codebase."> <meta name="keywords" content=" "> <meta name="twitter:card" content="summary_large_image"> <meta name="twitter:site" content="@flutterdev"> <meta property="og:title" content="Flutter - Beautiful native apps in record time"> <meta property="og:url" content="https://web.archive.org/web/20210329014543/https://flutter.dev/"> <meta property="og:description" content="Flutter SDK is Google's UI toolkit for crafting beautiful, natively compiled applications for mobile, web, and desktop from a single codebase."> <meta property="og:image" content="https://web.archive.org/web/20210329014543im_/https://flutter.dev/images/flutter-logo-sharing.png"> <link href="https://web.archive.org/web/20210329014543cs_/https://fonts.googleapis.com/css?family=Google+Sans:400,500|Roboto:300,400,500|Roboto+Mono:400,700|Material+Icons" rel="stylesheet"> <link rel="stylesheet" type="text/css" integrity="" crossorigin="anonymous" href="/web/20210329014543cs_/https://flutter.dev/assets/main-5d31c54008859f17c4c18fbbef531e65ba2004ae86d42d69cbed884aa482a047.css"> <script src="https://web.archive.org/web/20210329014543js_/https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.0/clipboard.min.js"></script> <script integrity="" crossorigin="anonymous" type="text/javascript" src="/web/20210329014543js_/https://flutter.dev/assets/main-3d1fe020941b4eb18d313f0eb6a8ff9fd170a0b3ed6913d333d804fec0136545.js"></script> <script defer src="/web/20210329014543js_/https://flutter.dev/assets/js/dartpad_picker_main.dart.js"></script> <script> (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','//web.archive.org/web/20210329014543/https://www.google-analytics.com/analytics.js','ga'); ga('create', 'UA-67589403-1', 'auto'); ga('send', 'pageview'); </script> <meta name="google-site-verification" content="HFqxhSbf9YA_0rBglNLzDiWnrHiK_w4cqDh2YD2GEY4"/> <meta name="google-site-verification" content="Zom-prnFykfYycmI_nzRWYx5r6Z9OwR-yEsgElRz_Ug"/> </head> <body class="landing-page homepage"> <!-- Google Tag Manager (noscript) --> <noscript><iframe src="https://web.archive.org/web/20210329014543if_/https://www.googletagmanager.com/ns.html?id=GTM-ND4LWWZ" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript> <!-- End Google Tag Manager (noscript) --> <div id="overlay-under-drawer"></div> <header class="site-header"> <nav class="navbar navbar-expand-md justify-content-start justify-content-md-between"> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"> <i class="material-icons">menu</i> </button> <a class="navbar-brand" href="/web/20210329014543/https://flutter.dev/"> <img alt="Flutter logo" height="37" width="129" class="align-middle" integrity="sha256-HK9kdr7tdq3sPEd1htpU3mtVKy9CEI7FvGjcY7ri33U=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/flutter-lockup-1caf6476beed76adec3c477586da54de6b552b2f42108ec5bc68dc63bae2df75.png"> </a> <div class="collapse navbar-collapse flex-grow-0" id="navbarSupportedContent"> <div class="site-header__sheet-bg" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"></div> <div class="site-header__sheet"> <ul class="navbar-nav"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs">Docs</a> </li> <div class="site-sidebar site-sidebar--header d-md-none"> <ul class="nav flex-column"><li class="nav-item"> <a class="nav-link collapsed" data-toggle="collapse" href="#sidenav-1" role="button" aria-expanded="false" aria-controls="sidenav-1">Get started</a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-1"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/install">1. Install</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/editor">2. Set up an editor</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/test-drive">3. Test drive</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/codelab">4. Write your first app</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/learn-more">5. Learn more</a> </li><div class="dropdown-divider"></div><li class="nav-item"> <a class="nav-link collapsable" data-toggle="collapse" data-target="#sidenav-1-7" href="#sidenav-1-7" role="button" aria-expanded="true" aria-controls="sidenav-1-7">From another platform? </a> <ul class="nav flex-column flex-nowrap collapse show" id="sidenav-1-7"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/flutter-for/android-devs">Flutter for Android devs</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/flutter-for/ios-devs">Flutter for iOS devs</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/flutter-for/react-native-devs">Flutter for React Native devs</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/flutter-for/web-devs">Flutter for web devs</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/flutter-for/xamarin-forms-devs">Flutter for Xamarin.Forms devs</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/flutter-for/declarative">Introduction to declarative UI</a> </li></ul> </li> <li class="nav-item"> <a class="nav-link" href="https://web.archive.org/web/20210329014543/https://dart.dev/overview" target="_blank" rel="noopener">Dart language overview<i class="fas fa-external-link-alt"></i></a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/get-started/web">Building a web app</a> </li> </ul> </li><li class="nav-item"> <a class="nav-link collapsed" data-toggle="collapse" href="#sidenav-2" role="button" aria-expanded="false" aria-controls="sidenav-2">Samples & tutorials</a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-2"> <li class="nav-item"> <a class="nav-link" href="https://web.archive.org/web/20210329014543/https://flutter.github.io/gallery/" target="_blank" rel="noopener">Flutter Gallery [running app]<i class="fas fa-external-link-alt"></i></a> </li><li class="nav-item"> <a class="nav-link" href="https://web.archive.org/web/20210329014543/https://github.com/flutter/gallery" target="_blank" rel="noopener">Flutter Gallery [repo]<i class="fas fa-external-link-alt"></i></a> </li><li class="nav-item"> <a class="nav-link" href="https://web.archive.org/web/20210329014543/https://flutter.github.io/samples/" target="_blank" rel="noopener">Sample apps on GitHub<i class="fas fa-external-link-alt"></i></a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/cookbook">Cookbook</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/codelabs">Codelabs</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/reference/tutorials">Tutorials</a> </li> </ul> </li><li class="nav-item"> <a class="nav-link " data-toggle="collapse" href="#sidenav-3" role="button" aria-expanded="true" aria-controls="sidenav-3">Development</a> <ul class="nav flex-column flex-nowrap collapse show" id="sidenav-3"> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-1" href="/web/20210329014543/https://flutter.dev/docs/development/ui" role="button" aria-expanded="false" aria-controls="sidenav-3-1">User interface </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-1"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/widgets-intro">Introduction to widgets</a> </li><li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-1-2" href="/web/20210329014543/https://flutter.dev/docs/development/ui/layout" role="button" aria-expanded="false" aria-controls="sidenav-3-1-2">Building layouts </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-1-2"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/layout">Layouts in Flutter</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/layout/tutorial">Tutorial</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/layout/adaptive-responsive">Creating adaptive and responsive apps</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/layout/constraints">Understanding constraints [NEW]</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/layout/box-constraints">Box constraints</a> </li> </ul> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/interactive">Adding interactivity</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/assets-and-images">Assets and images</a> </li><li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-1-5" href="/web/20210329014543/https://flutter.dev/docs/development/ui/navigation" role="button" aria-expanded="false" aria-controls="sidenav-3-1-5">Navigation & routing </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-1-5"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/navigation">Navigation in Flutter</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/navigation/deep-linking">Deep linking</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/navigation/url-strategies">URL strategies</a> </li> </ul> </li> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-1-6" href="/web/20210329014543/https://flutter.dev/docs/development/ui/animations" role="button" aria-expanded="false" aria-controls="sidenav-3-1-6">Animations </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-1-6"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/animations">Introduction</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/animations/overview">Overview</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/animations/tutorial">Tutorial</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/animations/implicit-animations">Implicit animations</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/animations/hero-animations">Hero animations</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/animations/staggered-animations">Staggered animations</a> </li> </ul> </li> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-1-7" href="/web/20210329014543/https://flutter.dev/docs/development/ui/advanced" role="button" aria-expanded="false" aria-controls="sidenav-3-1-7">Advanced UI </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-1-7"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/advanced/slivers">Slivers</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/advanced/gestures">Gestures</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/advanced/splash-screen">Splash screens</a> </li> </ul> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ui/widgets">Widget catalog</a> </li></ul> </li> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-2" href="/web/20210329014543/https://flutter.dev/docs/development/data-and-backend" role="button" aria-expanded="false" aria-controls="sidenav-3-2">Data & backend </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-2"> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-2-1" href="/web/20210329014543/https://flutter.dev/docs/development/data-and-backend/state-mgmt" role="button" aria-expanded="false" aria-controls="sidenav-3-2-1">State management </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-2-1"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/data-and-backend/state-mgmt/intro">Introduction</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/data-and-backend/state-mgmt/declarative">Think declaratively</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/data-and-backend/state-mgmt/ephemeral-vs-app">Ephemeral vs app state</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/data-and-backend/state-mgmt/simple">Simple app state management</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/data-and-backend/state-mgmt/options">Options</a> </li> </ul> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/data-and-backend/networking">Networking & http</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/data-and-backend/json">JSON and serialization</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/data-and-backend/firebase">Firebase</a> </li></ul> </li> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-3" href="/web/20210329014543/https://flutter.dev/docs/development/accessibility-and-localization" role="button" aria-expanded="false" aria-controls="sidenav-3-3">Accessibility & internationalization </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-3"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/accessibility-and-localization/accessibility">Accessibility</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/accessibility-and-localization/internationalization">Internationalization</a> </li></ul> </li> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-4" href="/web/20210329014543/https://flutter.dev/docs/development/platform-integration" role="button" aria-expanded="false" aria-controls="sidenav-3-4">Platform integration </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-4"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/sdk/release-notes/supported-platforms">Supported platforms</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/platform-integration/ios-app-clip">Adding iOS App Clip support</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/platform-integration/apple-watch">Apple Watch support</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/platform-integration/c-interop">C interop</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/platform-integration/platform-views">Hosting native Android and iOS views</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/platform-integration/web">Web FAQ</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/platform-integration/platform-channels">Writing platform-specific code</a> </li></ul> </li> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-5" href="/web/20210329014543/https://flutter.dev/docs/development/packages-and-plugins" role="button" aria-expanded="false" aria-controls="sidenav-3-5">Packages & plugins </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-5"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/packages-and-plugins/using-packages">Using packages</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/packages-and-plugins/developing-packages">Developing packages & plugins</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/packages-and-plugins/favorites">Flutter Favorites program</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/packages-and-plugins/background-processes">Background processes</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/packages-and-plugins/plugin-api-migration">Android plugin upgrade</a> </li><li class="nav-item"> <a class="nav-link" href="https://web.archive.org/web/20210329014543/https://pub.dev/flutter" target="_blank" rel="noopener">Package site<i class="fas fa-external-link-alt"></i></a> </li></ul> </li> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-6" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app" role="button" aria-expanded="false" aria-controls="sidenav-3-6">Add Flutter to existing app </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-6"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app">Introduction</a> </li><li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-6-2" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/android" role="button" aria-expanded="false" aria-controls="sidenav-3-6-2">Adding to an Android app </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-6-2"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/android/project-setup">Project setup</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/android/add-flutter-screen">Add a single Flutter screen</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/android/add-flutter-fragment">Add a Flutter Fragment</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/android/add-flutter-view">Add a Flutter View</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/android/plugin-setup">Plugin setup</a> </li> </ul> </li> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-6-3" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/ios" role="button" aria-expanded="false" aria-controls="sidenav-3-6-3">Adding to an iOS app </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-6-3"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/ios/project-setup">Project setup</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/ios/add-flutter-screen">Add a single Flutter screen</a> </li> </ul> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/debugging">Debugging & hot reload</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/performance">Loading sequence and performance</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/add-to-app/multiple-flutters">Multiple Flutter instances</a> </li></ul> </li> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-7" href="/web/20210329014543/https://flutter.dev/docs/development/tools" role="button" aria-expanded="false" aria-controls="sidenav-3-7">Tools & features </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-7"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/android-studio">Android Studio & IntelliJ</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/vs-code">Visual Studio Code</a> </li><li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-7-3" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools" role="button" aria-expanded="false" aria-controls="sidenav-3-7-3">DevTools </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-7-3"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/overview">Overview</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/android-studio">Install from Android Studio & IntelliJ</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/vscode">Install from VS Code</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/cli">Install from command line</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/inspector">Flutter inspector</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/performance">Performance view</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/cpu-profiler">CPU Profiler view</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/memory">Memory view</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/network">Network view</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/debugger">Debugger</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/logging">Logging view</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/devtools/app-size">App size tool</a> </li> </ul> </li> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-7-4" href="/web/20210329014543/https://flutter.dev/docs/development/tools/sdk" role="button" aria-expanded="false" aria-controls="sidenav-3-7-4">Flutter SDK </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-7-4"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/sdk/overview">Overview</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/sdk/upgrading">Upgrading</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/sdk/releases">Releases</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/release/breaking-changes">Breaking changes</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/sdk/release-notes">Release notes</a> </li> </ul> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/pubspec">Flutter and the pubspec file</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/hot-reload">Hot reload</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/flutter-fix">Flutter Fix</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/formatting">Code formatting</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/tools/web-renderers">Web renderers</a> </li></ul> </li> <li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-3-8" href="/web/20210329014543/https://flutter.dev/docs/development/androidx-migration" role="button" aria-expanded="false" aria-controls="sidenav-3-8">Migration notes </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-3-8"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/androidx-migration">AndroidX migration</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/packages-and-plugins/plugin-api-migration">Android plugin upgrade</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ios-14">Developing for iOS 14</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/development/ios-project-migration">Xcode 11.4 support</a> </li></ul> </li> </ul> </li><li class="nav-item"> <a class="nav-link collapsed" data-toggle="collapse" href="#sidenav-4" role="button" aria-expanded="false" aria-controls="sidenav-4">Testing & debugging</a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-4"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/testing/debugging">Debugging tools</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/testing/code-debugging">Debugging apps programmatically</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/testing/oem-debuggers">Using an OEM debugger</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/testing/build-modes">Flutter's build modes</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/testing/common-errors">Common Flutter errors</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/testing/errors">Handling errors</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/testing">Testing</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/testing/integration-tests">Integration testing</a> </li> </ul> </li><li class="nav-item"> <a class="nav-link collapsed" data-toggle="collapse" href="#sidenav-5" role="button" aria-expanded="false" aria-controls="sidenav-5">Performance & optimization</a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-5"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/perf">Overview</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/perf/app-size">App size</a> </li><li class="nav-item"> <a class="nav-link collapsable collapsed" data-toggle="collapse" data-target="#sidenav-5-3" href="/web/20210329014543/https://flutter.dev/docs/perf/rendering" role="button" aria-expanded="false" aria-controls="sidenav-5-3">Rendering performance </a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-5-3"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/perf/rendering">Overview</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/perf/rendering/best-practices">Performance best practices</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/perf/rendering/ui-performance">Performance profiling</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/perf/rendering/shader">Reduce shader compilation jank</a> </li></ul> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/perf/metrics">Performance metrics</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/perf/faq">Performance FAQ</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/perf/appendix">Appendix</a> </li> </ul> </li><li class="nav-item"> <a class="nav-link collapsed" data-toggle="collapse" href="#sidenav-6" role="button" aria-expanded="false" aria-controls="sidenav-6">Deployment</a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-6"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/deployment/obfuscate">Obfuscating Dart code</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/deployment/flavors">Creating flavors for Flutter</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/deployment/android">Build and release an Android app</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/deployment/ios">Build and release an iOS app</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/deployment/linux">Build and release a Linux app</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/deployment/web">Build and release a web app</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/deployment/cd">Continuous deployment</a> </li> </ul> </li><li class="nav-item"> <a class="nav-link collapsed" data-toggle="collapse" href="#sidenav-7" role="button" aria-expanded="false" aria-controls="sidenav-7">Resources</a> <ul class="nav flex-column flex-nowrap collapse " id="sidenav-7"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/resources/bootstrap-into-dart">Dart resources</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/resources/compatibility">Compatibility policy</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/resources/architectural-overview">Architectural overview</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/resources/inside-flutter">Inside Flutter</a> </li><li class="nav-item"> <a class="nav-link" href="https://web.archive.org/web/20210329014543/https://pub.dev/packages/google_fonts" target="_blank" rel="noopener">Google Fonts package<i class="fas fa-external-link-alt"></i></a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/resources/platform-adaptations">Platform adaptations</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/resources/videos">Technical videos</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/resources/books">Books</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/resources/faq">FAQ</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/resources/design-docs">Design Documents</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/resources/bug-reports">Creating useful bug reports</a> </li><li class="nav-item"> <a class="nav-link" href="https://web.archive.org/web/20210329014543/https://github.com/flutter/flutter/blob/master/CONTRIBUTING.md" target="_blank" rel="noopener">Contributing to Flutter<i class="fas fa-external-link-alt"></i></a> </li><li class="nav-item"> <a class="nav-link" href="https://web.archive.org/web/20210329014543/https://drive.google.com/drive/folders/1KXNtO9My2AMpDOF9A9Y_4aj4_BcgmDDT" target="_blank" rel="noopener">Official brand assets<i class="fas fa-external-link-alt"></i></a> </li> </ul> </li><li class="nav-item"> <a class="nav-link " data-toggle="collapse" href="#sidenav-8" role="button" aria-expanded="true" aria-controls="sidenav-8">Reference</a> <ul class="nav flex-column flex-nowrap collapse show" id="sidenav-8"> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/dash">Who is Dash?</a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/reference/widgets">Widget index</a> </li><li class="nav-item"> <a class="nav-link" href="https://web.archive.org/web/20210329014543/https://api.flutter.dev/" target="_blank" rel="noopener">API reference<i class="fas fa-external-link-alt"></i></a> </li><li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/docs/reference/flutter-cli">flutter CLI reference</a> </li><li class="nav-item"> <a class="nav-link" href="https://web.archive.org/web/20210329014543/https://pub.dev/flutter" target="_blank" rel="noopener">Package site<i class="fas fa-external-link-alt"></i></a> </li> </ul> </li></ul> </div> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/showcase">Showcase</a> </li> <li class="nav-item"> <a class="nav-link" href="/web/20210329014543/https://flutter.dev/community">Community</a> </li> </ul> <form action="/web/20210329014543/https://flutter.dev/search/" class="site-header__search form-inline"> <input class="site-header__searchfield form-control" type="search" name="q" id="q" autocomplete="off" placeholder="Search" aria-label="Search"> </form> </div> </div> <div class="site-header__social navbar-nav flex-row"> <a class="nav-item nav-link" href="https://web.archive.org/web/20210329014543/https://twitter.com/flutterdev" aria-label="Twittter"><i class="fab fa-twitter fa-lg"></i></a> <a class="nav-item nav-link" href="https://web.archive.org/web/20210329014543/https://www.youtube.com/flutterdev" aria-label="YouTube"><i class="fab fa-youtube fa-lg"></i></a> <a class="nav-item nav-link" href="https://web.archive.org/web/20210329014543/https://github.com/flutter" aria-label="Github"><i class="fab fa-github fa-lg"></i></a> </div> <a class="site-header__cta btn btn-primary" href="/web/20210329014543/https://flutter.dev/docs/get-started/install/">Get started</a> </nav> </header> <!----> <div class="site-banner site-banner--default" role="alert"> <a href="https://web.archive.org/web/20210329014543/https://medium.com/flutter/whats-new-in-flutter-2-0-fe8e95ecc65">Flutter 2 is here!</a><br> Interested in working on Flutter? See our <a href="/web/20210329014543/https://flutter.dev/jobs">open job listings.</a> </div> <div class="container"> <div class="row"> <main class="col-12" role="main"> <section class="homepage__hero text-center carousel slide" data-ride="carousel" data-interval="6500" data-pause="false" aria-hidden="true"> <div class="carousel-inner"> <div class="carousel-item active homepage__hero__slide homepage__hero__slide--beautiful"> <img class="homepage__hero__image homepage__hero__image--layer-1" integrity="sha256-Ti/O+ac0NpKl93hNaCQaeGxXx51V8P435rgqZT0Ua5M=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_1-bg-4e2fcef9a7343692a5f7784d68241a786c57c79d55f0fe37e6b82a653d146b93.jpg"> <img class="homepage__hero__image homepage__hero__image--layer-2" integrity="sha256-1avs7nl4WEMD0+DIBg557KYmV3nq2sWSnGUe4MTsapY=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_1-layer_1-d5abecee7978584303d3e0c8060e79eca6265779eadac5929c651ee0c4ec6a96.png"> <img class="homepage__hero__image homepage__hero__image--layer-3" integrity="sha256-TiUkdthxO3cto38WJhu22CrB9HAc4SH6tMM9nI+psXo=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_1-layer_2-4e252476d8713b772da37f16261bb6d82ac1f4701ce121fab4c33d9c8fa9b17a.png"> <h1 class="homepage__hero__text">Design <span class="color-white">beautiful</span> apps</h1> <img class="homepage__hero__phone-bezel" integrity="sha256-Rnq42Djl4tLT80f3Zhc8zDZSICI2kiFUFuTOc0LyIS8=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/phone_bezel-467ab8d838e5e2d2d3f347f766173ccc365220223692215416e4ce7342f2212f.png"> </div> <div class="carousel-item homepage__hero__slide homepage__hero__slide--productive"> <img class="homepage__hero__image homepage__hero__image--layer-1" integrity="sha256-7CKjn7GCyybsj7iLMAZLwIcH1Oh7DnQVwvB3wg0+YQI=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_2-bg-ec22a39fb182cb26ec8fb88b30064bc08707d4e87b0e7415c2f077c20d3e6102.jpg"> <img class="homepage__hero__image homepage__hero__image--layer-2" integrity="sha256-OIehDVkoDvGINMwcX8z3GizbuhoNlwnLqDXFwTLVHSQ=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_2-layer_2-3887a10d59280ef18834cc1c5fccf71a2cdbba1a0d9709cba835c5c132d51d24.png"> <img class="homepage__hero__image homepage__hero__image--layer-3" integrity="sha256-1HyBzkIE0N672waf/vMEt01qohwwmHOlkwegPGgKqAA=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_2-layer_1-d47c81ce4204d0debbdb069ffef304b74d6aa21c309873a59307a03c680aa800.png"> <h1 class="homepage__hero__text"><span class="color-white">Productively</span> build apps</h1> <img class="homepage__hero__phone-bezel" integrity="sha256-Rnq42Djl4tLT80f3Zhc8zDZSICI2kiFUFuTOc0LyIS8=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/phone_bezel-467ab8d838e5e2d2d3f347f766173ccc365220223692215416e4ce7342f2212f.png"> </div> <div class="carousel-item homepage__hero__slide homepage__hero__slide--faster"> <img class="homepage__hero__image homepage__hero__image--layer-1" integrity="sha256-it1gG9qNMT6u8GnAutQOTt7gGOGHd6uveUdPGreDyn0=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_3-bg-8add601bda8d313eaef069c0bad40e4edee018e18777abaf79474f1ab783ca7d.jpg"> <img class="homepage__hero__image homepage__hero__image--layer-2" integrity="sha256-zpNEDnlnCvnCZScd81jxqFaVr4qBdkiqKpa8KRd9Ozo=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_3-layer_2-ce93440e79670af9c265271df358f1a85695af8a817648aa2a96bc29177d3b3a.png"> <img class="homepage__hero__image homepage__hero__image--layer-3" integrity="sha256-9VC/eYPdQs9FYnqJRN//GoHZepRDd8+BEFxuYirnLOQ=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_3-layer_1-f550bf7983dd42cf45627a8944dfff1a81d97a944377cf81105c6e622ae72ce4.png"> <h1 class="homepage__hero__text">Create <span class="color-white">faster</span> apps</h1> <img class="homepage__hero__phone-bezel" integrity="sha256-Rnq42Djl4tLT80f3Zhc8zDZSICI2kiFUFuTOc0LyIS8=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/phone_bezel-467ab8d838e5e2d2d3f347f766173ccc365220223692215416e4ce7342f2212f.png"> </div> <div class="carousel-item homepage__hero__slide homepage__hero__slide--publish"> <img class="homepage__hero__image homepage__hero__image--layer-1" integrity="sha256-G8qmbfN+VwfFxYs4y/gXWQKlRJBdTA6BqsXxnuLKps0=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_4-bg-1bcaa66df37e5707c5c58b38cbf8175902a544905d4c0e81aac5f19ee2caa6cd.jpg"> <img class="homepage__hero__image homepage__hero__image--layer-2" integrity="sha256-dFWmezxp9PXww/YTIsUhbTKsGR+o3bOTZUqH3GfJ6tI=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_4-layer_2-7455a67b3c69f4f5f0c3f61322c5216d32ac191fa8ddb393654a87dc67c9ead2.png"> <img class="homepage__hero__image homepage__hero__image--layer-3" integrity="sha256-rpn3IlH9ebfjrjC4N/ttbnhlJ/TofZMjmlg3Fa+r6AM=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/slide_4-layer_1-ae99f72251fd79b7e3ae30b837fb6d6e786527f4e87d93239a583715afabe803.png"> <h1 class="homepage__hero__text">Target <span class="color-white">mobile, web, & desktop</span> apps</h1> <img class="homepage__hero__phone-bezel" integrity="sha256-Rnq42Djl4tLT80f3Zhc8zDZSICI2kiFUFuTOc0LyIS8=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/carousel/phone_bezel-467ab8d838e5e2d2d3f347f766173ccc365220223692215416e4ce7342f2212f.png"> </div> </div> </section> <section class="homepage__intro card text-center"> <div class="card-body"> <div class="row"> <div class="col-md-12 col-lg-8 offset-lg-2"> <span class="homepage__intro__partner">Made by <img alt="Google logo" integrity="sha256-+5A9gpYC3TVsUA78nd31C1jyJ/8diDc8bKpk+Ze2Y9M=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/logo-google-fb903d829602dd356c500efc9dddf50b58f227ff1d88373c6caa64f997b663d3.svg"></span> <p class="homepage__intro__statement text-center"> Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for <a href="/web/20210329014543/https://flutter.dev/docs">mobile</a>, <a href="/web/20210329014543/https://flutter.dev/web">web</a>, and <a href="/web/20210329014543/https://flutter.dev/desktop">desktop</a> from a single codebase. </p> <div class="homepage__intro__buttons"> <a class="btn btn-primary btn-cta" href="/web/20210329014543/https://flutter.dev/docs/get-started/install">Get started</a> <button class="btn btn-link btn-icon" type="button" data-toggle="modal" data-target="#videoModal" data-video="5VbAwhBBHsg"><i class="material-icons" aria-hidden="true">play_circle_filled</i> Watch video</button> </div> <p> Coming from another platform? Docs: <a href="/web/20210329014543/https://flutter.dev/docs/get-started/flutter-for/ios-devs">iOS</a>, <a href="/web/20210329014543/https://flutter.dev/docs/get-started/flutter-for/android-devs">Android</a>, <a href="/web/20210329014543/https://flutter.dev/docs/get-started/flutter-for/web-devs">Web</a>, <a href="/web/20210329014543/https://flutter.dev/docs/get-started/flutter-for/react-native-devs">React Native</a>, <a href="/web/20210329014543/https://flutter.dev/docs/get-started/flutter-for/xamarin-forms-devs">Xamarin</a>. </p> </div> </div> </div> </section> <section class="homepage__key-points card"> <div class="card-body"> <div class="row text-center"> <div class="homepage__key-point col-lg-4"> <div class="homepage__icon" aria-hidden="true"><img integrity="sha256-ArEgxWMt6Lz+uqmvjZOTjEAyF7W+jUDVlq9XbE7YWqY=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/icon-development-02b120c5632de8bcfebaa9af8d93938c403217b5be8d40d596af576c4ed85aa6.svg"></div> <h3>Fast Development</h3> <p> Paint your app to life in milliseconds with Stateful Hot Reload. Use a rich set of fully-customizable widgets to build native interfaces in minutes. </p> </div> <div class="homepage__key-point col-lg-4"> <div class="homepage__icon" aria-hidden="true"><img integrity="sha256-WRfQnvDY+VOGFbQoGHCWC4ZbukyLaSa1ra75FDOvCwc=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/icon-ui-5917d09ef0d8f9538615b4281870960b865bba4c8b6926b5adaef91433af0b07.svg"></div> <h3>Expressive and Flexible UI</h3> <p> Quickly ship features with a focus on native end-user experiences. Layered architecture allows for full customization, which results in incredibly fast rendering and expressive and flexible designs. </p> </div> <div class="homepage__key-point col-lg-4"> <div class="homepage__icon" aria-hidden="true"><img integrity="sha256-aA+zaHEJun6gwiYn2jqfp2GUSue1IUaAA7kyqpEzyls=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/icon-performance-680fb3687109ba7ea0c22627da3a9fa761944ae7b521468003b932aa9133ca5b.svg"></div> <h3>Native Performance</h3> <p> Flutter’s widgets incorporate all critical platform differences such as scrolling, navigation, icons and fonts, and your Flutter code is compiled to native ARM machine code using <a href="https://web.archive.org/web/20210329014543/https://dart.dev/platforms">Dart's native compilers</a>. </p> </div> </div> </div> </section> <section id="dartpad-landing-page" class="landing-page__cta card text-center"> <div class="card-body"> <div class="dash-dartpad"> <a name="try-dart"></a> <h2>Try Flutter in your browser</h2> <select id="dartpad-select" aria-label="Select a Flutter demo"></select> <div id="dartpad-host"></div> <h3>Want more practice? <a href="/web/20210329014543/https://flutter.dev/codelabs">Try a codelab</a>.</h3> </div> </div> </section> <section class="homepage__hot-reload card"> <div class="card-body"> <div class="row"> <div class="landing-page__card-graphic--fill col-lg-8"> <video src="/web/20210329014543im_/https://flutter.dev/videos/FastDev.mp4" autoplay playsinline muted loop title="Hot reload demo"></video> </div> <div class="col-lg-4"> <div class="homepage__icon" aria-hidden="true"><img integrity="sha256-ArEgxWMt6Lz+uqmvjZOTjEAyF7W+jUDVlq9XbE7YWqY=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/icon-development-02b120c5632de8bcfebaa9af8d93938c403217b5be8d40d596af576c4ed85aa6.svg"></div> <h2>Fast development</h2> <p> Flutter's <em>hot reload</em> helps you quickly and easily experiment, build UIs, add features, and fix bugs faster. Experience sub-second reload times without losing state on emulators, simulators, and hardware. </p> <a href="/web/20210329014543/https://flutter.dev/docs/development/tools/hot-reload">Learn more</a> </div> </div> </div> </section> <section class="homepage__beautiful-uis card "> <div class="card-body"> <div class="row"> <div class="landing-page__card-graphic--fill col-lg-8 order-lg-1"> <div> <div class="homepage__beautiful-uis__app-info"> <h5>Reflectly</h5> <p>An award winning mindfulness app built with Flutter.</p> <small> Download: <a href="https://web.archive.org/web/20210329014543/https://itunes.apple.com/us/app/reflectly-mindfulness-journal/id1241229134" target="_blank" rel="noopener">iOS</a>, <a href="https://web.archive.org/web/20210329014543/https://play.google.com/store/apps/details?id=com.reflectlyApp&e=-EnableAppDetailsPageRedesign" target="_blank" rel="noopener">Android</a><br> <a href="https://web.archive.org/web/20210329014543/https://reflect.ly/" target="blank">Learn more</a> </small> </div> <video src="/web/20210329014543im_/https://flutter.dev/videos/Filters.mp4" autoplay playsinline muted loop title="Reflectly app demo"></video> </div> </div> <div class="col-lg-4"> <div class="homepage__icon" aria-hidden="true"><img integrity="sha256-WRfQnvDY+VOGFbQoGHCWC4ZbukyLaSa1ra75FDOvCwc=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/icon-ui-5917d09ef0d8f9538615b4281870960b865bba4c8b6926b5adaef91433af0b07.svg"></div> <h2>Expressive, beautiful UIs</h2> <p> Delight your users with Flutter's built-in beautiful Material Design and Cupertino (iOS-flavor) widgets, rich motion APIs, smooth natural scrolling, and platform awareness. </p> <a href="/web/20210329014543/https://flutter.dev/docs/development/ui/widgets/catalog">Browse the widget catalog</a> </div> </div> </div> </section> <section class="homepage__native-performance card "> <div class="card-body"> <div class="row"> <div class="landing-page__card-graphic--fill col-lg-8"> <video src="/web/20210329014543im_/https://flutter.dev/videos/NativePerformance.mp4" autoplay playsinline muted loop title="Demo showcasing animations and transition performance"></video> </div> <div class="col-lg-4"> <div class="homepage__icon" aria-hidden="true"><img integrity="sha256-aA+zaHEJun6gwiYn2jqfp2GUSue1IUaAA7kyqpEzyls=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/icon-performance-680fb3687109ba7ea0c22627da3a9fa761944ae7b521468003b932aa9133ca5b.svg"></div> <h2>Native Performance</h2> <p> Flutter’s widgets incorporate all critical platform differences such as scrolling, navigation, icons and fonts to provide full native performance on both iOS and Android. </p> <p> <a href="/web/20210329014543/https://flutter.dev/showcase">Examples of apps built with Flutter</a> </p> <p class="small mb-0"> <small>Demo design inspired by <a href="https://web.archive.org/web/20210329014543/https://dribbble.com/aureliensalomon">Aurélien Salomon</a>'s <a href="https://web.archive.org/web/20210329014543/https://dribbble.com/shots/2940231-Google-Newsstand-Navigation-Pattern">Google Newsstand Navigation Pattern</a> </small> </p> </div> </div> </div> </section> <section class="homepage__learn card "> <div class="card-body"> <div class="row"> <div class="homepage__card-graphic col-lg-8 order-lg-1"> <div class="embedded-video-wrapper"> <iframe class="embedded-video-wrapper__frame" width="auto" height="auto" src="https://web.archive.org/web/20210329014543if_/https://www.youtube.com/embed/IdrCyS7EF8M" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe> </div> </div> <div class="col-lg-4"> <h2 class="homepage__headline-after-image">Learn from developers</h2> <p> Watch these videos to learn from Google and developers as you build with Flutter. </p> <a href="https://web.archive.org/web/20210329014543/https://www.youtube.com/flutterdev">Visit our YouTube playlist</a> </div> </div> </div> </section> <section class="homepage__use-cases card "> <div class="card-body"> <div class="row"> <div class="homepage__card-graphic col-lg-7 order-lg-1"> <div> <div class="landing-page__card-graphic__logo-row row align-items-center"> <img alt="Google logo" class="col-4" integrity="sha256-XJ7yhB3aXQJH5T1WqRpwoblhoI8dLwiY0URBw7yUNYY=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/garden-logos-color/google-5c9ef2841dda5d0247e53d56a91a70a1b961a08f1d2f0898d14441c3bc943586.png"> <img alt="Ebay logo" class="col-4" integrity="sha256-9KSf5kxbau2uDoVp9z6RYq6HTJ0nNGTlBHzuPrk4jP8=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/garden-logos-color/ebay-f4a49fe64c5b6aedae0e8569f73e9162ae874c9d273464e5047cee3eb9388cff.png"> <img alt="BMW logo" class="col-4" integrity="sha256-5JgcKy4iMmd64h3v0AdyhgIWsW5cHj/Zb+sADk9mHww=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/garden-logos-color/bmw-e4981c2b2e2232677ae21defd00772860216b16e5c1e3fd96feb000e4f661f0c.jpg"> </div> <div class="landing-page__card-graphic__logo-row row align-items-center"> <img alt="Square logo" class="col-4" integrity="sha256-GtD4BIqsMS10ZIzgvcOxv9NXJdiqA4ItUULg7uwDU+c=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/garden-logos-color/square-1ad0f8048aac312d74648ce0bdc3b1bfd35725d8aa03822d5142e0eeec0353e7.png"> <img alt="Alibaba logo" class="col-4" integrity="sha256-l7cTloVYXLkgHyt7Urvvn1td8zNJ3TdHOPrYapmi7wE=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/garden-logos-color/alibaba-97b7139685585cb9201f2b7b52bbef9f5b5df33349dd374738fad86a99a2ef01.png"> <img alt="Capital One logo" class="col-4" integrity="sha256-MLAq1tTkXd/EQBSY8S5A2FdcBusqAQnWLNSrVThq8NM=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/garden-logos-color/capital-one-30b02ad6d4e45ddfc4401498f12e40d8575c06eb2a0109d62cd4ab55386af0d3.png"> </div> </div> </div> <div class="col-lg-5"> <h2 class="homepage__headline-after-image">Who's using Flutter?</h2> <p> Organizations around the world are building apps with Flutter. </p> <a href="/web/20210329014543/https://flutter.dev/showcase">See what’s being created</a> </div> </div> </div> </section> <div class="homepage__news card-deck"> <div class="card"> <img alt="A news item image" class="card-img-top" integrity="sha256-kbu3sfX9fxRfNX/hU7EbdX9I93OCO7Eu+jsicu97L2c=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/news-1-91bbb7b1f5fd7f145f357fe153b11b757f48f773823bb12efa3b2272ef7b2f67.png"> <div class="card-body"> <p class="card-text"><small class="text-muted">News</small></p> <h3>Announcing Flutter 2</h3> <a href="https://web.archive.org/web/20210329014543/https://developers.googleblog.com/2021/03/announcing-flutter-2.html">Read more</a> </div> </div> <div class="card"> <img alt="A news item image" class="card-img-top" integrity="sha256-HNUBBkpakHqxtmpnq5axgQQKShm+pgOV1hQkT+BvcrA=" crossorigin="anonymous" src="/web/20210329014543im_/https://flutter.dev/assets/homepage/news-2-1cd501064a5a907ab1b66a67ab96b181040a4a19bea60395d614244fe06f72b0.png"> <div class="card-body"> <p class="card-text"><small class="text-muted">News</small></p> <h3>Announcing stable web</h3> <a href="https://web.archive.org/web/20210329014543/https://medium.com/flutter/flutter-web-support-hits-the-stable-milestone-d6b84e83b425">Read more</a> </div> </div> </div> <section class="landing-page__cta card text-center"> <div class="card-body"> <h2 class="landing-page__cta__headline">Install Flutter today.</h2> <p class="landing-page__cta__body">It’s free and open source.</p> <a class="landing-page__cta__button btn btn-primary btn-cta" href="/web/20210329014543/https://flutter.dev/docs/get-started/install">Get started</a> </div> </section> <!-- Modal --> <div class="modal fade" data-video-modal id="videoModal" tabindex="-1" role="dialog" aria-hidden="true"> <div class="modal-dialog modal-dialog-centered modal-lg" role="document"> <div class="modal-content"> <div class="modal-body"> <div class="embedded-video-wrapper"> <iframe id="video-player-iframe" class="embedded-video-wrapper__frame" width="auto" height="auto" src="https://web.archive.org/web/20210329014543if_/https://www.youtube.com/embed/fq4N0hgOWzU?cc_lang_pref=en&cc_load_policy=1&enablejsapi=1" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe> </div> </div> </div> </div> </div> </main> </div> </div> <footer class="site-footer"> <div class="container-fluid"> <div class="row"> <div class="col-md-12 site-footer__wrapper"> <div class="site-footer__logo"> <img src="/web/20210329014543im_/https://flutter.dev/images/flutter-mono-81x100.png" alt="Flutter Logo" width="81" height="100"> </div> <div class="site-footer__content"> <ul class="site-footer__link-list"> <li><a href="https://web.archive.org/web/20210329014543/https://groups.google.com/forum/#!forum/flutter-dev">flutter-dev@</a></li> <li><a href="/web/20210329014543/https://flutter.dev/tos">terms</a></li> <li><a href="/web/20210329014543/https://flutter.dev/brand">brand usage</a></li> <li><a href="/web/20210329014543/https://flutter.dev/security">security</a></li> <li><a href="https://web.archive.org/web/20210329014543/https://www.google.com/intl/en/policies/privacy">privacy</a></li> <li><a href="https://web.archive.org/web/20210329014543/https://esflutter.dev/">español</a></li> <li><a href="https://web.archive.org/web/20210329014543/https://flutter.cn/" class="text-nowrap">社区中文资源</a></li> <li><a href="https://web.archive.org/web/20210329014543/https://flutter-ko.dev/" class="text-nowrap">한국어</a></li> <li><a href="https://web.archive.org/web/20210329014543/https://blog.google/inside-google/company-announcements/standing-with-black-community">We stand in solidarity with the Black community. Black Lives Matter.</a></li> </ul> <p class="licenses"> Except as otherwise noted, this work is licensed under a <a rel="license" href="https://web.archive.org/web/20210329014543/https://creativecommons.org/licenses/by/4.0">Creative Commons Attribution 4.0 International License</a>, and code samples are licensed under the BSD License. </p> </div> </div> </div> </div> </footer> <script async="" defer="" src="//web.archive.org/web/20210329014543js_/https://survey.g.doubleclick.net/async_survey?site=at3ul57xpub2vk3oxt2ytw365i"></script> </body> </html> <!-- FILE ARCHIVED ON 01:45:43 Mar 29, 2021 AND RETRIEVED FROM THE INTERNET ARCHIVE ON 23:35:56 Nov 30, 2024. JAVASCRIPT APPENDED BY WAYBACK MACHINE, COPYRIGHT INTERNET ARCHIVE. ALL OTHER CONTENT MAY ALSO BE PROTECTED BY COPYRIGHT (17 U.S.C. SECTION 108(a)(3)). --> <!-- playback timings (ms): captures_list: 0.506 exclusion.robots: 0.032 exclusion.robots.policy: 0.023 esindex: 0.01 cdx.remote: 6.457 LoadShardBlock: 236.746 (3) PetaboxLoader3.datanode: 146.993 (4) PetaboxLoader3.resolve: 96.948 (2) load_resource: 94.165 -->