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<!doctype html><html lang="en"><head><meta charset="utf-8"><title>flutter: The Flutter command-line tool | Flutter</title><link rel="icon" href="/assets/images/branding/flutter/icon/64.png" eleventy:ignore><link rel="apple-touch-icon" href="/assets/images/branding/flutter/logo/flutter-logomark-320px.png" eleventy:ignore><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>!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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date</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-4"><li class="nav-item"><a class="nav-link" href="/release/upgrade">Upgrade</a></li><li class="nav-item"><a class="nav-link" href="/release/archive">SDK archive</a></li><div class="dropdown-divider"></div><li class="nav-item"><a class="nav-link" href="/release/whats-new">What's new</a></li><li class="nav-item"><a class="nav-link" href="/release/release-notes">Release notes</a></li><li class="nav-item"><a class="nav-link" href="/release/breaking-changes">Breaking changes</a></li><li class="nav-item"><a class="nav-link" href="/release/compatibility-policy">Compatibility policy</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-5" role="button" aria-expanded="false" aria-controls="header-sidenav-5">App solutions</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-5"><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-5-1" href="#header-sidenav-5-1" role="button" aria-expanded="false" aria-controls="header-sidenav-5-1">AI</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-5-1"><li class="nav-item"><a class="nav-link" href="/resources/ai-overview">Overview</a></li><li class="nav-item"><a class="nav-link" href="https://ai.google.dev/gemini-api/docs/get-started/dart" target="_blank" rel="noopener">Get started with the Gemini API</a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/packages/google_generative_ai" target="_blank" rel="noopener">Google AI Dart SDK (pub.dev)</a></li><li class="nav-item"><a class="nav-link" href="https://www.youtube.com/watch?v=1AuzJEiHjO4" target="_blank" rel="noopener">Build with Google AI Dart SDK (video)</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-5-2" href="#header-sidenav-5-2" role="button" aria-expanded="false" aria-controls="header-sidenav-5-2">Firebase & Firestore</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-5-2"><li class="nav-item"><a class="nav-link" href="/data-and-backend/firebase">Overview</a></li><li class="nav-item"><a class="nav-link" href="https://firebase.google.com/docs/flutter" target="_blank" rel="noopener">Discover Firebase for Flutter</a></li><li class="nav-item"><a class="nav-link" href="https://www.youtube.com/watch?v=wUSkeTaBonA" target="_blank" rel="noopener">Get to know Firebase for Flutter</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">Add a user authentication flow to a Flutter app using FirebaseUI</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">Get to know Firebase for web</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-5-3" href="#header-sidenav-5-3" role="button" aria-expanded="false" aria-controls="header-sidenav-5-3">Games</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-5-3"><li class="nav-item"><a class="nav-link" href="/resources/games-toolkit">Overview</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/games/achievements-leaderboard">Add achievements and leaderboards</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">Build leaderboards with Firestore</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/plugins/google-mobile-ads">Add advertising</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/games/firestore-multiplayer">Add multiplayer support</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">Add in-app purchases</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">Add user authentication</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">Debug using Crashlytics</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">Intro to Flame with Flutter</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-5-4" href="#header-sidenav-5-4" role="button" aria-expanded="false" aria-controls="header-sidenav-5-4">Monetization</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-5-4"><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-5-4-1" href="#header-sidenav-5-4-1" role="button" aria-expanded="false" aria-controls="header-sidenav-5-4-1">Advertising</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-5-4-1"><li class="nav-item"><a class="nav-link" href="/resources/ads-overview">Ads overview</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/plugins/google-mobile-ads">Add advertising</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">Add AdMob ads to your Flutter app</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">Add an AdMob banner and native inline ads</a></li><li class="nav-item"><a class="nav-link" href="https://developers.google.com/admob/flutter/mediation" target="_blank" rel="noopener">Google AdMob mediation</a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/packages/interactive_media_ads" target="_blank" rel="noopener">Interactive Media Ads SDK</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-5-4-2" href="#header-sidenav-5-4-2" role="button" aria-expanded="false" aria-controls="header-sidenav-5-4-2">In-app purchases</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-5-4-2"><li class="nav-item"><a class="nav-link" href="/resources/in-app-purchases-overview">In-app purchases overview</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">Add in-app purchases</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-5-4-3" href="#header-sidenav-5-4-3" role="button" aria-expanded="false" aria-controls="header-sidenav-5-4-3">Payments</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-5-4-3"><li class="nav-item"><a class="nav-link" href="/resources/payments-overview">Payments overview</a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/packages/pay" target="_blank" rel="noopener">Google pay package</a></li></ul></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-5-5" href="#header-sidenav-5-5" role="button" aria-expanded="false" aria-controls="header-sidenav-5-5">Maps</a><ul class="nav flex-column flex-nowrap collapse" id="header-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">Add Google maps to a Flutter app</a></li><li class="nav-item"><a class="nav-link" href="https://developers.google.com/maps/flutter-package" target="_blank" rel="noopener">Google Maps package</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-5-6" href="#header-sidenav-5-6" role="button" aria-expanded="false" aria-controls="header-sidenav-5-6">News</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-5-6"><li class="nav-item"><a class="nav-link" href="/resources/news-toolkit">Build a news app</a></li></ul></li></ul></li><li aria-hidden="true"><div class="sidebar-primary-divider"></div></li><li class="nav-header">User interface</li><li class="nav-item"><a class="nav-link" href="/ui">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/ui/widgets">Widget catalog</a></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-10" role="button" aria-expanded="false" aria-controls="header-sidenav-10">Layout</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-10"><li class="nav-item"><a class="nav-link" href="/ui/layout">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/ui/layout/tutorial">Build a layout</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-10-3" href="/ui/layout/lists" role="button" aria-expanded="false" aria-controls="header-sidenav-10-3">Lists & grids</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-10-3"><li class="nav-item"><a class="nav-link" href="/cookbook/lists/basic-list">Create and use lists</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/horizontal-list">Create a horizontal list</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/grid-lists">Create a grid view</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/mixed-list">Create lists with different types of items</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/spaced-items">Create lists with spaced items</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/long-lists">Work with long lists</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-10-4" href="/ui/layout/scrolling" role="button" aria-expanded="false" aria-controls="header-sidenav-10-4">Scrolling</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-10-4"><li class="nav-item"><a class="nav-link" href="/ui/layout/scrolling">Overview</a></li><li class="nav-item"><a class="nav-link" href="/ui/layout/scrolling/slivers">Use slivers to achieve fancy scrolling</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/floating-app-bar">Place a floating app bar above a list</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/effects/parallax-scrolling">Create a scrolling parallax effect</a></li></ul></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-11" role="button" aria-expanded="false" aria-controls="header-sidenav-11">Adaptive & responsive design</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-11"><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive">Overview</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/general">General approach</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/safearea-mediaquery">SafeArea & MediaQuery</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/large-screens">Large screens & foldables</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/input">User input & accessibility</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/capabilities">Capabilities & policies</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/best-practices">Best practices</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/more-info">Additional resources</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-12" role="button" aria-expanded="false" aria-controls="header-sidenav-12">Design & theming</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-12"><li class="nav-item"><a class="nav-link" href="/cookbook/design/themes">Share styles with themes</a></li><li class="nav-item"><a class="nav-link" href="/ui/design/material">Material design</a></li><li class="nav-item"><a class="nav-link" href="/release/breaking-changes/material-3-migration">Migrate to Material 3</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-12-4" href="/ui/design/text" role="button" aria-expanded="false" aria-controls="header-sidenav-12-4">Text</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-12-4"><li class="nav-item"><a class="nav-link" href="/ui/design/text/typography">Fonts & typography</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/fonts">Use a custom font</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/package-fonts">Export fonts from a package</a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/packages/google_fonts" target="_blank" rel="noopener">Google Fonts package</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-12-5" href="/ui/design/graphics" role="button" aria-expanded="false" aria-controls="header-sidenav-12-5">Custom graphics</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-12-5"><li class="nav-item"><a class="nav-link" href="/ui/design/graphics/fragment-shaders">Use custom fragment shaders</a></li></ul></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-13" role="button" aria-expanded="false" aria-controls="header-sidenav-13">Interactivity</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-13"><li class="nav-item"><a class="nav-link" href="/ui/interactivity">Add interactivity to your app</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-13-2" href="/ui/interactivity/gestures" role="button" aria-expanded="false" aria-controls="header-sidenav-13-2">Gestures</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-13-2"><li class="nav-item"><a class="nav-link" href="/ui/interactivity/gestures">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/gestures/handling-taps">Handle taps</a></li><li class="nav-item"><a class="nav-link" href="/ui/interactivity/gestures/drag-outside">Drag an object outside an app</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/effects/drag-a-widget">Drag a UI element within an app</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/gestures/ripples">Add Material touch ripples</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/gestures/dismissible">Implement swipe to dismiss</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-13-3" href="/ui/interactivity/input" role="button" aria-expanded="false" aria-controls="header-sidenav-13-3">Input & forms</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-13-3"><li class="nav-item"><a class="nav-link" href="/cookbook/forms/text-input">Create and style a text field</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/retrieve-input">Retrieve the value of a text field</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/text-field-changes">Handle changes to a text field</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/focus">Manage focus in text fields</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/validation">Build a form with validation</a></li></ul></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/snackbars">Display a snackbar</a></li><li class="nav-item"><a class="nav-link" href="/ui/interactivity/actions-and-shortcuts">Implement actions & shortcuts</a></li><li class="nav-item"><a class="nav-link" href="/ui/interactivity/focus">Manage keyboard focus</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-14" role="button" aria-expanded="false" aria-controls="header-sidenav-14">Assets & media</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-14"><li class="nav-item"><a class="nav-link" href="/ui/assets/assets-and-images">Add assets and images</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/images/network-image">Display images from the internet</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/images/fading-in-images">Fade in images with a placeholder</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/plugins/play-video">Play and pause a video</a></li><li class="nav-item"><a class="nav-link" href="/ui/assets/asset-transformation">Transform assets at build time</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-15" role="button" aria-expanded="false" aria-controls="header-sidenav-15">Navigation & routing</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-15"><li class="nav-item"><a class="nav-link" href="/ui/navigation">Overview</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/tabs">Add tabs to your app</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/navigation-basics">Navigate to a new screen and back</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/passing-data">Send data to a new screen</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/returning-data">Return data from a screen</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/drawer">Add a drawer to a screen</a></li><li class="nav-item"><a class="nav-link" href="/ui/navigation/deep-linking">Set up deep linking</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/set-up-app-links">Set up app links for Android</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/set-up-universal-links">Set up universal links for iOS</a></li><li class="nav-item"><a class="nav-link" href="/ui/navigation/url-strategies">Configure web URL strategies</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-16" role="button" aria-expanded="false" aria-controls="header-sidenav-16">Animations & transitions</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-16"><li class="nav-item"><a class="nav-link" href="/ui/animations">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/tutorial">Tutorial</a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/implicit-animations">Implicit animations</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/animated-container">Animate the properties of a container</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/opacity-animation">Fade a widget in and out</a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/hero-animations">Hero animations</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/page-route-animation">Animate a page route transition</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/physics-simulation">Animate using a physics simulation</a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/staggered-animations">Staggered animations</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/effects/staggered-menu-animation">Create a staggered menu animation</a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/overview">API overview</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-17" role="button" aria-expanded="false" aria-controls="header-sidenav-17">Accessibility & internationalization</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-17"><li class="nav-item"><a class="nav-link" href="/ui/accessibility-and-internationalization/accessibility">Accessibility</a></li><li class="nav-item"><a class="nav-link" href="/ui/accessibility-and-internationalization/internationalization">Internationalization</a></li></ul></li><li aria-hidden="true"><div class="sidebar-primary-divider"></div></li><li class="nav-header">Beyond UI</li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-20" role="button" aria-expanded="false" aria-controls="header-sidenav-20">Data & backend</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-20"><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-20-1" href="/data-and-backend/state-mgmt" role="button" aria-expanded="false" aria-controls="header-sidenav-20-1">State management</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-20-1"><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/intro">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/declarative">Think declaratively</a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/ephemeral-vs-app">Ephemeral vs app state</a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/simple">Simple app state management</a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/options">Options</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-20-2" href="/data-and-backend/networking" role="button" aria-expanded="false" aria-controls="header-sidenav-20-2">Networking & http</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-20-2"><li class="nav-item"><a class="nav-link" href="/data-and-backend/networking">Overview</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/fetch-data">Fetch data from the internet</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/authenticated-requests">Make authenticated requests</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/send-data">Send data to the internet</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/update-data">Update data over the internet</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/delete-data">Delete data on the internet</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/web-sockets">Communicate with WebSockets</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-20-3" href="/data-and-backend/serialization" role="button" aria-expanded="false" aria-controls="header-sidenav-20-3">Serialization</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-20-3"><li class="nav-item"><a class="nav-link" href="/data-and-backend/serialization/json">JSON serialization</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/background-parsing">Parse JSON in the background</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-20-4" href="/data-and-backend/persistence" role="button" aria-expanded="false" aria-controls="header-sidenav-20-4">Persistence</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-20-4"><li class="nav-item"><a class="nav-link" href="/cookbook/persistence/key-value">Store key-value data on disk</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/persistence/reading-writing-files">Read and write files</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/persistence/sqlite">Persist data with SQLite</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-20-5" href="/data-and-backend/firebase" role="button" aria-expanded="false" aria-controls="header-sidenav-20-5">Firebase</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-20-5"><li class="nav-item"><a class="nav-link" href="/data-and-backend/firebase">Overview</a></li><li class="nav-item"><a class="nav-link" href="https://firebase.google.com/docs/flutter/setup" target="_blank" rel="noopener">Add Firebase to your Flutter app</a></li></ul></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/google-apis">Google APIs</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-21" role="button" aria-expanded="false" aria-controls="header-sidenav-21">App architecture</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-21"><li class="nav-item"><a class="nav-link" href="/app-architecture">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/concepts">Architecture concepts</a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/guide">Guide to app architecture</a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/recommendations">Recommendations</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-21-5" href="/cookbook/architecture" role="button" aria-expanded="false" aria-controls="header-sidenav-21-5">Design patterns</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-21-5"><li class="nav-item"><a class="nav-link" href="/cookbook/architecture/optimistic-state">Optimistic state</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/architecture/key-value-data">Persistent storage architecture: Key-value data</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/architecture/sql">Persistent storage architecture: SQL</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/architecture/offline-first">Offline-first</a></li></ul></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-22" role="button" aria-expanded="false" aria-controls="header-sidenav-22">Platform integration</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-22"><li class="nav-item"><a class="nav-link" href="/reference/supported-platforms">Supported platforms</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/desktop">Build desktop apps with Flutter</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/platform-channels">Write platform-specific code</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/platform-adaptations">Automatic platform adaptations</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-22-5" href="/platform-integration/android" role="button" aria-expanded="false" aria-controls="header-sidenav-22-5">Android</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-22-5"><li class="nav-item"><a class="nav-link" href="/platform-integration/android/install-android">Add Android as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/splash-screen">Add a splash screen</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/predictive-back">Add predictive back</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/c-interop">Bind to native code</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/platform-views">Host a native Android view</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/call-jetpack-apis">Calling JetPack APIs</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/compose-activity">Launch a Jetpack Compose activity</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/restore-state-android">Restore state on Android</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/chromeos">Target ChromeOS with Android</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-22-6" href="/platform-integration/ios" role="button" aria-expanded="false" aria-controls="header-sidenav-22-6">iOS</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-22-6"><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/install-ios">Add iOS as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/ios-latest">Flutter on latest iOS</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/apple-frameworks">Leverage Apple's system libraries</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/launch-screen">Add a launch screen</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/ios-app-clip">Add iOS App Clip support</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/app-extensions">Add iOS app extensions</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/c-interop">Bind to native code</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/platform-views">Host a native iOS view</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/ios-debugging">Enable debugging on iOS</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/restore-state-ios">Restore state on iOS</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-22-7" href="/platform-integration/linux" role="button" aria-expanded="false" aria-controls="header-sidenav-22-7">Linux</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-22-7"><li class="nav-item"><a class="nav-link" href="/platform-integration/linux/install-linux">Add Linux as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/linux/building">Build a Linux app</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-22-8" href="/platform-integration/macos" role="button" aria-expanded="false" aria-controls="header-sidenav-22-8">macOS</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-22-8"><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/install-macos">Add macOS as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/building">Build a macOS app</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/c-interop">Bind to native code</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/platform-views">Host a native macOS view</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-22-9" href="/platform-integration/web" role="button" aria-expanded="false" aria-controls="header-sidenav-22-9">Web</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-22-9"><li class="nav-item"><a class="nav-link" href="/platform-integration/web">Web support in Flutter</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/install-web">Add web as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/building">Build a web app</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/wasm">Compile to WebAssembly</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/initialization">Customize app initialization</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/embedding-flutter-web">Add Flutter to any web app</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/web-content-in-flutter">Web content in Flutter</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/renderers">Web renderers</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/web-images">Display images on the web</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/faq">Web FAQ</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-22-10" href="/platform-integration/windows" role="button" aria-expanded="false" aria-controls="header-sidenav-22-10">Windows</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-22-10"><li class="nav-item"><a class="nav-link" href="/platform-integration/windows/install-windows">Add Windows as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/windows/building">Build a Windows app</a></li></ul></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-23" role="button" aria-expanded="false" aria-controls="header-sidenav-23">Packages & plugins</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-23"><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/using-packages">Use packages & plugins</a></li><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/developing-packages">Develop packages & plugins</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-23-3" href="/packages-and-plugins/swift-package-manager" role="button" aria-expanded="false" aria-controls="header-sidenav-23-3">Swift Package Manager</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-23-3"><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/swift-package-manager/for-app-developers">For app developers</a></li><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/swift-package-manager/for-plugin-authors">For plugin authors</a></li></ul></li><div class="dropdown-divider"></div><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/favorites">Flutter Favorites</a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/flutter" target="_blank" rel="noopener">Package repository</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#header-sidenav-24" role="button" aria-expanded="false" aria-controls="header-sidenav-24">Testing & debugging</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-24"><li class="nav-header">Testing</li><li class="nav-item"><a class="nav-link" href="/testing/overview">Overview</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-24-3" href="#header-sidenav-24-3" role="button" aria-expanded="false" aria-controls="header-sidenav-24-3">Unit testing</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-24-3"><li class="nav-item"><a class="nav-link" href="/cookbook/testing/unit/introduction">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/unit/mocking">Mock dependencies</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-24-4" href="#header-sidenav-24-4" role="button" aria-expanded="false" aria-controls="header-sidenav-24-4">Widget testing</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-24-4"><li class="nav-item"><a class="nav-link" href="/cookbook/testing/widget/introduction">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/widget/finders">Find widgets</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/widget/scrolling">Simulate scrolling</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/widget/tap-drag">Simulate user interaction</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#header-sidenav-24-5" href="#header-sidenav-24-5" role="button" aria-expanded="false" aria-controls="header-sidenav-24-5">Integration testing</a><ul class="nav flex-column flex-nowrap collapse" id="header-sidenav-24-5"><li class="nav-item"><a class="nav-link" href="/cookbook/testing/integration/introduction">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/testing/integration-tests">Write and run an integration test</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/integration/profiling">Profile an integration test</a></li></ul></li><li class="nav-item"><a class="nav-link" href="/testing/testing-plugins">Test a plugin</a></li><li class="nav-item"><a class="nav-link" href="/testing/plugins-in-tests">Handle plugin code in tests</a></li><li class="nav-header">Debugging</li><li class="nav-item"><a class="nav-link" href="/testing/debugging">Debugging tools</a></li><li class="nav-item"><a class="nav-link" href="/testing/code-debugging">Debug your app programmatically</a></li><li class="nav-item"><a class="nav-link" href="/testing/native-debugging">Use a native language debugger</a></li><li class="nav-item"><a class="nav-link" href="/testing/build-modes">Flutter's build modes</a></li><li 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collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-5-3" href="#fixed-sidenav-5-3" role="button" aria-expanded="false" aria-controls="fixed-sidenav-5-3">Games</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-5-3"><li class="nav-item"><a class="nav-link" href="/resources/games-toolkit">Overview</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/games/achievements-leaderboard">Add achievements and leaderboards</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">Build leaderboards with Firestore</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/plugins/google-mobile-ads">Add advertising</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/games/firestore-multiplayer">Add multiplayer support</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">Add in-app purchases</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">Add user authentication</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">Debug using Crashlytics</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">Intro to Flame with Flutter</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-5-4" href="#fixed-sidenav-5-4" role="button" aria-expanded="false" aria-controls="fixed-sidenav-5-4">Monetization</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-5-4"><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-5-4-1" href="#fixed-sidenav-5-4-1" role="button" aria-expanded="false" aria-controls="fixed-sidenav-5-4-1">Advertising</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-5-4-1"><li class="nav-item"><a class="nav-link" href="/resources/ads-overview">Ads overview</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/plugins/google-mobile-ads">Add advertising</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">Add AdMob ads to your Flutter app</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">Add an AdMob banner and native inline ads</a></li><li class="nav-item"><a class="nav-link" href="https://developers.google.com/admob/flutter/mediation" target="_blank" rel="noopener">Google AdMob mediation</a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/packages/interactive_media_ads" target="_blank" rel="noopener">Interactive Media Ads SDK</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-5-4-2" href="#fixed-sidenav-5-4-2" role="button" aria-expanded="false" aria-controls="fixed-sidenav-5-4-2">In-app purchases</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-5-4-2"><li class="nav-item"><a class="nav-link" href="/resources/in-app-purchases-overview">In-app purchases overview</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">Add in-app purchases</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-5-4-3" href="#fixed-sidenav-5-4-3" role="button" aria-expanded="false" aria-controls="fixed-sidenav-5-4-3">Payments</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-5-4-3"><li class="nav-item"><a class="nav-link" href="/resources/payments-overview">Payments overview</a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/packages/pay" target="_blank" rel="noopener">Google pay package</a></li></ul></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-5-5" href="#fixed-sidenav-5-5" role="button" aria-expanded="false" aria-controls="fixed-sidenav-5-5">Maps</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-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">Add Google maps to a Flutter app</a></li><li class="nav-item"><a class="nav-link" href="https://developers.google.com/maps/flutter-package" target="_blank" rel="noopener">Google Maps package</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-5-6" href="#fixed-sidenav-5-6" role="button" aria-expanded="false" aria-controls="fixed-sidenav-5-6">News</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-5-6"><li class="nav-item"><a class="nav-link" href="/resources/news-toolkit">Build a news app</a></li></ul></li></ul></li><li aria-hidden="true"><div class="sidebar-primary-divider"></div></li><li class="nav-header">User interface</li><li class="nav-item"><a class="nav-link" href="/ui">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/ui/widgets">Widget catalog</a></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-10" role="button" aria-expanded="false" aria-controls="fixed-sidenav-10">Layout</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-10"><li class="nav-item"><a class="nav-link" href="/ui/layout">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/ui/layout/tutorial">Build a layout</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-10-3" href="/ui/layout/lists" role="button" aria-expanded="false" aria-controls="fixed-sidenav-10-3">Lists & grids</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-10-3"><li class="nav-item"><a class="nav-link" href="/cookbook/lists/basic-list">Create and use lists</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/horizontal-list">Create a horizontal list</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/grid-lists">Create a grid view</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/mixed-list">Create lists with different types of items</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/spaced-items">Create lists with spaced items</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/long-lists">Work with long lists</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-10-4" href="/ui/layout/scrolling" role="button" aria-expanded="false" aria-controls="fixed-sidenav-10-4">Scrolling</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-10-4"><li class="nav-item"><a class="nav-link" href="/ui/layout/scrolling">Overview</a></li><li class="nav-item"><a class="nav-link" href="/ui/layout/scrolling/slivers">Use slivers to achieve fancy scrolling</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/lists/floating-app-bar">Place a floating app bar above a list</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/effects/parallax-scrolling">Create a scrolling parallax effect</a></li></ul></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-11" role="button" aria-expanded="false" aria-controls="fixed-sidenav-11">Adaptive & responsive design</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-11"><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive">Overview</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/general">General approach</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/safearea-mediaquery">SafeArea & MediaQuery</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/large-screens">Large screens & foldables</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/input">User input & accessibility</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/capabilities">Capabilities & policies</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/best-practices">Best practices</a></li><li class="nav-item"><a class="nav-link" href="/ui/adaptive-responsive/more-info">Additional resources</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-12" role="button" aria-expanded="false" aria-controls="fixed-sidenav-12">Design & theming</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-12"><li class="nav-item"><a class="nav-link" href="/cookbook/design/themes">Share styles with themes</a></li><li class="nav-item"><a class="nav-link" href="/ui/design/material">Material design</a></li><li class="nav-item"><a class="nav-link" href="/release/breaking-changes/material-3-migration">Migrate to Material 3</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-12-4" href="/ui/design/text" role="button" aria-expanded="false" aria-controls="fixed-sidenav-12-4">Text</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-12-4"><li class="nav-item"><a class="nav-link" href="/ui/design/text/typography">Fonts & typography</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/fonts">Use a custom font</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/package-fonts">Export fonts from a package</a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/packages/google_fonts" target="_blank" rel="noopener">Google Fonts package</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-12-5" href="/ui/design/graphics" role="button" aria-expanded="false" aria-controls="fixed-sidenav-12-5">Custom graphics</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-12-5"><li class="nav-item"><a class="nav-link" href="/ui/design/graphics/fragment-shaders">Use custom fragment shaders</a></li></ul></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-13" role="button" aria-expanded="false" aria-controls="fixed-sidenav-13">Interactivity</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-13"><li class="nav-item"><a class="nav-link" href="/ui/interactivity">Add interactivity to your app</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-13-2" href="/ui/interactivity/gestures" role="button" aria-expanded="false" aria-controls="fixed-sidenav-13-2">Gestures</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-13-2"><li class="nav-item"><a class="nav-link" href="/ui/interactivity/gestures">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/gestures/handling-taps">Handle taps</a></li><li class="nav-item"><a class="nav-link" href="/ui/interactivity/gestures/drag-outside">Drag an object outside an app</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/effects/drag-a-widget">Drag a UI element within an app</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/gestures/ripples">Add Material touch ripples</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/gestures/dismissible">Implement swipe to dismiss</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-13-3" href="/ui/interactivity/input" role="button" aria-expanded="false" aria-controls="fixed-sidenav-13-3">Input & forms</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-13-3"><li class="nav-item"><a class="nav-link" href="/cookbook/forms/text-input">Create and style a text field</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/retrieve-input">Retrieve the value of a text field</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/text-field-changes">Handle changes to a text field</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/focus">Manage focus in text fields</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/forms/validation">Build a form with validation</a></li></ul></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/snackbars">Display a snackbar</a></li><li class="nav-item"><a class="nav-link" href="/ui/interactivity/actions-and-shortcuts">Implement actions & shortcuts</a></li><li class="nav-item"><a class="nav-link" href="/ui/interactivity/focus">Manage keyboard focus</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-14" role="button" aria-expanded="false" aria-controls="fixed-sidenav-14">Assets & media</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-14"><li class="nav-item"><a class="nav-link" href="/ui/assets/assets-and-images">Add assets and images</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/images/network-image">Display images from the internet</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/images/fading-in-images">Fade in images with a placeholder</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/plugins/play-video">Play and pause a video</a></li><li class="nav-item"><a class="nav-link" href="/ui/assets/asset-transformation">Transform assets at build time</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-15" role="button" aria-expanded="false" aria-controls="fixed-sidenav-15">Navigation & routing</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-15"><li class="nav-item"><a class="nav-link" href="/ui/navigation">Overview</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/tabs">Add tabs to your app</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/navigation-basics">Navigate to a new screen and back</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/passing-data">Send data to a new screen</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/returning-data">Return data from a screen</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/design/drawer">Add a drawer to a screen</a></li><li class="nav-item"><a class="nav-link" href="/ui/navigation/deep-linking">Set up deep linking</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/set-up-app-links">Set up app links for Android</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/navigation/set-up-universal-links">Set up universal links for iOS</a></li><li class="nav-item"><a class="nav-link" href="/ui/navigation/url-strategies">Configure web URL strategies</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-16" role="button" aria-expanded="false" aria-controls="fixed-sidenav-16">Animations & transitions</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-16"><li class="nav-item"><a class="nav-link" href="/ui/animations">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/tutorial">Tutorial</a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/implicit-animations">Implicit animations</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/animated-container">Animate the properties of a container</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/opacity-animation">Fade a widget in and out</a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/hero-animations">Hero animations</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/page-route-animation">Animate a page route transition</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/animation/physics-simulation">Animate using a physics simulation</a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/staggered-animations">Staggered animations</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/effects/staggered-menu-animation">Create a staggered menu animation</a></li><li class="nav-item"><a class="nav-link" href="/ui/animations/overview">API overview</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-17" role="button" aria-expanded="false" aria-controls="fixed-sidenav-17">Accessibility & internationalization</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-17"><li class="nav-item"><a class="nav-link" href="/ui/accessibility-and-internationalization/accessibility">Accessibility</a></li><li class="nav-item"><a class="nav-link" href="/ui/accessibility-and-internationalization/internationalization">Internationalization</a></li></ul></li><li aria-hidden="true"><div class="sidebar-primary-divider"></div></li><li class="nav-header">Beyond UI</li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-20" role="button" aria-expanded="false" aria-controls="fixed-sidenav-20">Data & backend</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-20"><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-20-1" href="/data-and-backend/state-mgmt" role="button" aria-expanded="false" aria-controls="fixed-sidenav-20-1">State management</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-20-1"><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/intro">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/declarative">Think declaratively</a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/ephemeral-vs-app">Ephemeral vs app state</a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/simple">Simple app state management</a></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/state-mgmt/options">Options</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-20-2" href="/data-and-backend/networking" role="button" aria-expanded="false" aria-controls="fixed-sidenav-20-2">Networking & http</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-20-2"><li class="nav-item"><a class="nav-link" href="/data-and-backend/networking">Overview</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/fetch-data">Fetch data from the internet</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/authenticated-requests">Make authenticated requests</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/send-data">Send data to the internet</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/update-data">Update data over the internet</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/delete-data">Delete data on the internet</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/web-sockets">Communicate with WebSockets</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-20-3" href="/data-and-backend/serialization" role="button" aria-expanded="false" aria-controls="fixed-sidenav-20-3">Serialization</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-20-3"><li class="nav-item"><a class="nav-link" href="/data-and-backend/serialization/json">JSON serialization</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/networking/background-parsing">Parse JSON in the background</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-20-4" href="/data-and-backend/persistence" role="button" aria-expanded="false" aria-controls="fixed-sidenav-20-4">Persistence</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-20-4"><li class="nav-item"><a class="nav-link" href="/cookbook/persistence/key-value">Store key-value data on disk</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/persistence/reading-writing-files">Read and write files</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/persistence/sqlite">Persist data with SQLite</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-20-5" href="/data-and-backend/firebase" role="button" aria-expanded="false" aria-controls="fixed-sidenav-20-5">Firebase</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-20-5"><li class="nav-item"><a class="nav-link" href="/data-and-backend/firebase">Overview</a></li><li class="nav-item"><a class="nav-link" href="https://firebase.google.com/docs/flutter/setup" target="_blank" rel="noopener">Add Firebase to your Flutter app</a></li></ul></li><li class="nav-item"><a class="nav-link" href="/data-and-backend/google-apis">Google APIs</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-21" role="button" aria-expanded="false" aria-controls="fixed-sidenav-21">App architecture</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-21"><li class="nav-item"><a class="nav-link" href="/app-architecture">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/concepts">Architecture concepts</a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/guide">Guide to app architecture</a></li><li class="nav-item"><a class="nav-link" href="/app-architecture/recommendations">Recommendations</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-21-5" href="/cookbook/architecture" role="button" aria-expanded="false" aria-controls="fixed-sidenav-21-5">Design patterns</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-21-5"><li class="nav-item"><a class="nav-link" href="/cookbook/architecture/optimistic-state">Optimistic state</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/architecture/key-value-data">Persistent storage architecture: Key-value data</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/architecture/sql">Persistent storage architecture: SQL</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/architecture/offline-first">Offline-first</a></li></ul></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-22" role="button" aria-expanded="false" aria-controls="fixed-sidenav-22">Platform integration</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-22"><li class="nav-item"><a class="nav-link" href="/reference/supported-platforms">Supported platforms</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/desktop">Build desktop apps with Flutter</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/platform-channels">Write platform-specific code</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/platform-adaptations">Automatic platform adaptations</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-22-5" href="/platform-integration/android" role="button" aria-expanded="false" aria-controls="fixed-sidenav-22-5">Android</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-22-5"><li class="nav-item"><a class="nav-link" href="/platform-integration/android/install-android">Add Android as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/splash-screen">Add a splash screen</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/predictive-back">Add predictive back</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/c-interop">Bind to native code</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/platform-views">Host a native Android view</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/call-jetpack-apis">Calling JetPack APIs</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/compose-activity">Launch a Jetpack Compose activity</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/restore-state-android">Restore state on Android</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/android/chromeos">Target ChromeOS with Android</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-22-6" href="/platform-integration/ios" role="button" aria-expanded="false" aria-controls="fixed-sidenav-22-6">iOS</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-22-6"><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/install-ios">Add iOS as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/ios-latest">Flutter on latest iOS</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/apple-frameworks">Leverage Apple's system libraries</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/launch-screen">Add a launch screen</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/ios-app-clip">Add iOS App Clip support</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/app-extensions">Add iOS app extensions</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/c-interop">Bind to native code</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/platform-views">Host a native iOS view</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/ios-debugging">Enable debugging on iOS</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/ios/restore-state-ios">Restore state on iOS</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-22-7" href="/platform-integration/linux" role="button" aria-expanded="false" aria-controls="fixed-sidenav-22-7">Linux</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-22-7"><li class="nav-item"><a class="nav-link" href="/platform-integration/linux/install-linux">Add Linux as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/linux/building">Build a Linux app</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-22-8" href="/platform-integration/macos" role="button" aria-expanded="false" aria-controls="fixed-sidenav-22-8">macOS</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-22-8"><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/install-macos">Add macOS as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/building">Build a macOS app</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/c-interop">Bind to native code</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/macos/platform-views">Host a native macOS view</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-22-9" href="/platform-integration/web" role="button" aria-expanded="false" aria-controls="fixed-sidenav-22-9">Web</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-22-9"><li class="nav-item"><a class="nav-link" href="/platform-integration/web">Web support in Flutter</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/install-web">Add web as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/building">Build a web app</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/wasm">Compile to WebAssembly</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/initialization">Customize app initialization</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/embedding-flutter-web">Add Flutter to any web app</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/web-content-in-flutter">Web content in Flutter</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/renderers">Web renderers</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/web-images">Display images on the web</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/web/faq">Web FAQ</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-22-10" href="/platform-integration/windows" role="button" aria-expanded="false" aria-controls="fixed-sidenav-22-10">Windows</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-22-10"><li class="nav-item"><a class="nav-link" href="/platform-integration/windows/install-windows">Add Windows as build target</a></li><li class="nav-item"><a class="nav-link" href="/platform-integration/windows/building">Build a Windows app</a></li></ul></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-23" role="button" aria-expanded="false" aria-controls="fixed-sidenav-23">Packages & plugins</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-23"><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/using-packages">Use packages & plugins</a></li><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/developing-packages">Develop packages & plugins</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-23-3" href="/packages-and-plugins/swift-package-manager" role="button" aria-expanded="false" aria-controls="fixed-sidenav-23-3">Swift Package Manager</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-23-3"><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/swift-package-manager/for-app-developers">For app developers</a></li><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/swift-package-manager/for-plugin-authors">For plugin authors</a></li></ul></li><div class="dropdown-divider"></div><li class="nav-item"><a class="nav-link" href="/packages-and-plugins/favorites">Flutter Favorites</a></li><li class="nav-item"><a class="nav-link" href="https://pub.dev/flutter" target="_blank" rel="noopener">Package repository</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-24" role="button" aria-expanded="false" aria-controls="fixed-sidenav-24">Testing & debugging</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-24"><li class="nav-header">Testing</li><li class="nav-item"><a class="nav-link" href="/testing/overview">Overview</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-24-3" href="#fixed-sidenav-24-3" role="button" aria-expanded="false" aria-controls="fixed-sidenav-24-3">Unit testing</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-24-3"><li class="nav-item"><a class="nav-link" href="/cookbook/testing/unit/introduction">Introduction</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/unit/mocking">Mock dependencies</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-24-4" href="#fixed-sidenav-24-4" role="button" aria-expanded="false" aria-controls="fixed-sidenav-24-4">Widget 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href="/testing/integration-tests">Write and run an integration test</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/testing/integration/profiling">Profile an integration test</a></li></ul></li><li class="nav-item"><a class="nav-link" href="/testing/testing-plugins">Test a plugin</a></li><li class="nav-item"><a class="nav-link" href="/testing/plugins-in-tests">Handle plugin code in tests</a></li><li class="nav-header">Debugging</li><li class="nav-item"><a class="nav-link" href="/testing/debugging">Debugging tools</a></li><li class="nav-item"><a class="nav-link" href="/testing/code-debugging">Debug your app programmatically</a></li><li class="nav-item"><a class="nav-link" href="/testing/native-debugging">Use a native language debugger</a></li><li class="nav-item"><a class="nav-link" href="/testing/build-modes">Flutter's build modes</a></li><li class="nav-item"><a class="nav-link" href="/testing/common-errors">Common Flutter errors</a></li><li class="nav-item"><a class="nav-link" href="/testing/errors">Handle errors</a></li><li class="nav-item"><a class="nav-link" href="/cookbook/maintenance/error-reporting">Report errors to a service</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-25" role="button" aria-expanded="false" aria-controls="fixed-sidenav-25">Performance & optimization</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-25"><li class="nav-item"><a class="nav-link" href="/perf">Overview</a></li><li class="nav-item"><a class="nav-link" href="/perf/impeller">Impeller</a></li><li class="nav-item"><a class="nav-link" href="/perf/best-practices">Performance best practices</a></li><li class="nav-item"><a class="nav-link" href="/perf/app-size">App size</a></li><li class="nav-item"><a class="nav-link" href="/perf/deferred-components">Deferred components</a></li><li class="nav-item"><a class="nav-link" href="/perf/rendering-performance">Rendering performance</a></li><li class="nav-item"><a class="nav-link" href="/perf/ui-performance">Performance profiling</a></li><li class="nav-item"><a class="nav-link" href="/perf/web-performance">Performance profiling for web</a></li><li class="nav-item"><a class="nav-link" href="/perf/shader">Shader compilation jank</a></li><li class="nav-item"><a class="nav-link" href="/perf/metrics">Performance metrics</a></li><li class="nav-item"><a class="nav-link" href="/perf/isolates">Concurrency and isolates</a></li><li class="nav-item"><a class="nav-link" href="/perf/faq">Performance FAQ</a></li><li class="nav-item"><a class="nav-link" href="/perf/appendix">Appendix</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-26" role="button" aria-expanded="false" aria-controls="fixed-sidenav-26">Deployment</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-26"><li class="nav-item"><a class="nav-link" href="/deployment/obfuscate">Obfuscate Dart code</a></li><li class="nav-item"><a class="nav-link" href="/deployment/flavors">Create flavors of an app</a></li><li class="nav-item"><a class="nav-link" href="/deployment/android">Build and release an Android app</a></li><li class="nav-item"><a class="nav-link" href="/deployment/ios">Build and release an iOS app</a></li><li class="nav-item"><a class="nav-link" href="/deployment/macos">Build and release a macOS app</a></li><li class="nav-item"><a class="nav-link" href="/deployment/linux">Build and release a Linux app</a></li><li class="nav-item"><a class="nav-link" href="/deployment/windows">Build and release a Windows app</a></li><li class="nav-item"><a class="nav-link" href="/deployment/web">Build and release a web app</a></li><li class="nav-item"><a class="nav-link" href="/deployment/cd">Set up continuous deployment</a></li></ul></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-27" role="button" aria-expanded="false" aria-controls="fixed-sidenav-27">Add to an existing app</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-27"><li class="nav-item"><a class="nav-link" href="/add-to-app">Introduction</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-27-2" href="/add-to-app/android" role="button" aria-expanded="false" aria-controls="fixed-sidenav-27-2">Add to an Android app</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-27-2"><li class="nav-item"><a class="nav-link" href="/add-to-app/android/project-setup">Set up Android project</a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/android/add-flutter-screen">Add a single Flutter screen</a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/android/add-flutter-fragment">Add a Flutter Fragment</a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/android/add-flutter-view">Add a Flutter View</a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/android/plugin-setup">Use a Flutter plugin</a></li></ul></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-27-3" href="/add-to-app/ios" role="button" aria-expanded="false" aria-controls="fixed-sidenav-27-3">Add to an iOS app</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-27-3"><li class="nav-item"><a class="nav-link" href="/add-to-app/ios/project-setup">Set up iOS project</a></li><li class="nav-item"><a class="nav-link" href="/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="/platform-integration/web/embedding-flutter-web">Add to a web app</a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/debugging">Debug embedded Flutter module</a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/multiple-flutters">Add multiple Flutter instances</a></li><li class="nav-item"><a class="nav-link" href="/add-to-app/performance">Loading sequence and performance</a></li></ul></li><li aria-hidden="true"><div class="sidebar-primary-divider"></div></li><li class="nav-item"><a class="nav-link collapsed collapsible" data-toggle="collapse" href="#fixed-sidenav-29" role="button" aria-expanded="false" aria-controls="fixed-sidenav-29">Tools & editors</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-29"><li class="nav-item"><a class="nav-link" href="/tools/android-studio">Android Studio & IntelliJ</a></li><li class="nav-item"><a class="nav-link" href="/tools/vs-code">Visual Studio Code</a></li><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-29-3" href="/tools/devtools" role="button" aria-expanded="false" aria-controls="fixed-sidenav-29-3">DevTools</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-29-3"><li class="nav-item"><a class="nav-link" href="/tools/devtools">Overview</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/android-studio">Run from Android Studio & IntelliJ</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/vscode">Run from VS Code</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/cli">Run from command line</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/inspector">Flutter inspector</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/performance">Performance view</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/cpu-profiler">CPU Profiler view</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/memory">Memory view</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/console">Debug console view</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/network">Network view</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/debugger">Debugger</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/logging">Logging view</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/app-size">App size tool</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/extensions">DevTools extensions</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/deep-links">Validate deep links</a></li><li class="nav-item"><a class="nav-link" href="/tools/devtools/release-notes">Release notes</a></li></ul></li><li class="nav-item"><a class="nav-link" href="/tools/sdk">SDK overview</a></li><li class="nav-item"><a class="nav-link" href="/tools/pubspec">Flutter's pubspec options</a></li><li class="nav-item"><a class="nav-link" href="/tools/flutter-fix">Automated fixes</a></li><li class="nav-item"><a class="nav-link" href="/tools/formatting">Code 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aria-controls="fixed-sidenav-31">Resources</a><ul class="nav flex-column flex-nowrap collapse show" id="fixed-sidenav-31"><li class="nav-item"><a class="nav-link" href="/resources/faq">FAQ</a></li><li class="nav-item"><a class="nav-link" href="/resources/books">Books</a></li><li class="nav-item"><a class="nav-link" href="/resources/videos">Videos</a></li><li class="nav-item"><a class="nav-link" href="/resources/courses">Courses</a></li><li class="nav-item"><a class="nav-link" href="/resources/bootstrap-into-dart">Learn Dart</a></li><li class="nav-item"><a class="nav-link" href="/resources/support">Get support</a></li><div class="dropdown-divider"></div><li class="nav-item"><a class="nav-link collapsible collapsed" data-toggle="collapse" data-target="#fixed-sidenav-31-8" href="#fixed-sidenav-31-8" role="button" aria-expanded="false" aria-controls="fixed-sidenav-31-8">Contribute</a><ul class="nav flex-column flex-nowrap collapse" id="fixed-sidenav-31-8"><li class="nav-item"><a class="nav-link" href="/resources/bug-reports">Create useful bug reports</a></li><li class="nav-item"><a class="nav-link" href="https://github.com/flutter/flutter/blob/main/CONTRIBUTING.md" target="_blank" rel="noopener">Contribute to Flutter</a></li><li class="nav-item"><a class="nav-link" href="/resources/design-docs">Discover proposed features</a></li></ul></li><li class="nav-item"><a class="nav-link active collapsible" data-toggle="collapse" data-target="#fixed-sidenav-31-9" href="/reference" role="button" aria-expanded="true" aria-controls="fixed-sidenav-31-9">Reference</a><ul class="nav flex-column flex-nowrap collapse show" id="fixed-sidenav-31-9"><li class="nav-item"><a class="nav-link" href="/dash">Who is Dash?</a></li><li class="nav-item"><a class="nav-link" href="/reference/widgets">Widget index</a></li><li class="nav-item"><a class="nav-link active" href="/reference/flutter-cli">flutter CLI</a></li><li class="nav-item"><a class="nav-link" href="https://api.flutter.dev" target="_blank" rel="noopener">API docs</a></li></ul></li></ul></li></ul></div><main class="site-content col-12 col-md-9 offset-md-3 col-xl-8 offset-xl-2 col-xxl-8 offset-xxl-2"><div class="container"><header class="site-content__title" id="site-content-title"><h1>flutter: The Flutter command-line tool</h1></header><p>The <code>flutter</code> command-line tool is how developers (or IDEs on behalf of developers) interact with Flutter. For Dart related commands, you can use the <a href="https://dart.dev/tools/dart-tool"><code>dart</code></a> command-line tool.</p><p>Here's how you might use the <code>flutter</code> tool to create, analyze, test, and run an app:</p><div class="code-block-wrapper language-console"><div class="code-block-body"><pre class="shiki dash-light" tabindex="0"><code><span class="line"><span style="color:#222222" class="undefined terminal-command">flutter create my_app</span></span> <span class="line"><span style="color:#222222" class="undefined terminal-command">cd my_app</span></span> <span class="line"><span style="color:#222222" class="undefined terminal-command">flutter analyze</span></span> <span class="line"><span style="color:#222222" class="undefined terminal-command">flutter test</span></span> <span class="line"><span style="color:#222222" class="undefined terminal-command">flutter run lib/main.dart</span></span></code></pre></div></div><p>To run <a href="https://dart.dev/tools/dart-pub"><code>pub</code></a> commands using the <code>flutter</code> tool:</p><div class="code-block-wrapper language-console"><div class="code-block-body"><pre class="shiki dash-light" tabindex="0"><code><span class="line"><span style="color:#222222" class="undefined terminal-command">flutter pub get</span></span> <span class="line"><span style="color:#222222" class="undefined terminal-command">flutter pub outdated</span></span> <span class="line"><span style="color:#222222" class="undefined terminal-command">flutter pub upgrade</span></span></code></pre></div></div><p>To view all commands that <code>flutter</code> supports:</p><div class="code-block-wrapper language-console"><div class="code-block-body"><pre class="shiki dash-light" tabindex="0"><code><span class="line"><span style="color:#222222" class="undefined terminal-command">flutter --help --verbose</span></span></code></pre></div></div><p>To get the current version of the Flutter SDK, including its framework, engine, and tools:</p><div class="code-block-wrapper language-console"><div class="code-block-body"><pre class="shiki dash-light" tabindex="0"><code><span class="line"><span style="color:#222222" class="undefined terminal-command">flutter --version</span></span></code></pre></div></div><div class="header-wrapper"><h2 id="flutter-commands"><code>flutter</code> commands</h2><a class="heading-link" href="#flutter-commands" aria-label="Link to 'flutter commands' section">#</a></div><p>The following table shows which commands you can use with the <code>flutter</code> tool:</p><div class="table-wrapper"><table class="table table-striped nowrap"><thead><tr><th>Command</th><th>Example of use</th><th>More information</th></tr></thead><tbody><tr><td>analyze</td><td><code>flutter analyze -d <DEVICE_ID></code></td><td>Analyzes the project's Dart source code.<br>Use instead of <a href="https://dart.dev/tools/dart-analyze"><code>dart analyze</code></a>.</td></tr><tr><td>assemble</td><td><code>flutter assemble -o <DIRECTORY></code></td><td>Assemble and build flutter resources.</td></tr><tr><td>attach</td><td><code>flutter attach -d <DEVICE_ID></code></td><td>Attach to a running application.</td></tr><tr><td>bash-completion</td><td><code>flutter bash-completion</code></td><td>Output command line shell completion setup scripts.</td></tr><tr><td>build</td><td><code>flutter build <DIRECTORY></code></td><td>Flutter build commands.</td></tr><tr><td>channel</td><td><code>flutter channel <CHANNEL_NAME></code></td><td>List or switch flutter channels.</td></tr><tr><td>clean</td><td><code>flutter clean</code></td><td>Delete the <code>build/</code> and <code>.dart_tool/</code> directories.</td></tr><tr><td>config</td><td><code>flutter config --build-dir=<DIRECTORY></code></td><td>Configure Flutter settings. To remove a setting, configure it to an empty string.</td></tr><tr><td>create</td><td><code>flutter create <DIRECTORY></code></td><td>Creates a new project.</td></tr><tr><td>custom-devices</td><td><code>flutter custom-devices list</code></td><td>Add, delete, list, and reset custom devices.</td></tr><tr><td>devices</td><td><code>flutter devices -d <DEVICE_ID></code></td><td>List all connected devices.</td></tr><tr><td>doctor</td><td><code>flutter doctor</code></td><td>Show information about the installed tooling.</td></tr><tr><td>downgrade</td><td><code>flutter downgrade</code></td><td>Downgrade Flutter to the last active version for the current channel.</td></tr><tr><td>drive</td><td><code>flutter drive</code></td><td>Runs Flutter Driver tests for the current project.</td></tr><tr><td>emulators</td><td><code>flutter emulators</code></td><td>List, launch and create emulators.</td></tr><tr><td>gen-l10n</td><td><code>flutter gen-l10n <DIRECTORY></code></td><td>Generate localizations for the Flutter project.</td></tr><tr><td>install</td><td><code>flutter install -d <DEVICE_ID></code></td><td>Install a Flutter app on an attached device.</td></tr><tr><td>logs</td><td><code>flutter logs</code></td><td>Show log output for running Flutter apps.</td></tr><tr><td>precache</td><td><code>flutter precache <ARGUMENTS></code></td><td>Populates the Flutter tool's cache of binary artifacts.</td></tr><tr><td>pub</td><td><code>flutter pub <PUB_COMMAND></code></td><td>Works with packages.<br>Use instead of <a href="https://dart.dev/tools/dart-pub"><code>dart pub</code></a>.</td></tr><tr><td>run</td><td><code>flutter run <DART_FILE></code></td><td>Runs a Flutter program.</td></tr><tr><td>screenshot</td><td><code>flutter screenshot</code></td><td>Take a screenshot of a Flutter app from a connected device.</td></tr><tr><td>symbolize</td><td><code>flutter symbolize --input=<STACK_TRACK_FILE></code></td><td>Symbolize a stack trace from the AOT compiled flutter application.</td></tr><tr><td>test</td><td><code>flutter test [<DIRECTORYDART_FILE>]</code></td><td>Runs tests in this package.<br>Use instead of <a href="https://dart.dev/tools/dart-test"><code>dart test</code></a>.</td></tr><tr><td>upgrade</td><td><code>flutter upgrade</code></td><td>Upgrade your copy of Flutter.</td></tr></tbody></table></div><p>For additional help on any of the commands, enter <code>flutter help <command></code> or follow the links in the <strong>More information</strong> column. You can also get details on <code>pub</code> commands — for example, <code>flutter help pub outdated</code>.</p><p id="page-github-links"><span>Unless stated otherwise, the documentation on this site reflects the latest stable version of Flutter. Page last updated on 2024-04-04.</span> <a href="https://github.com/flutter/website/tree/main/src/content/reference/flutter-cli.md" target="_blank" rel="noopener">View source</a> <span>or </span><a href="https://github.com/flutter/website/issues/new?template=1_page_issue.yml&&page-url=https://docs.flutter.dev/reference/flutter-cli/&page-source=https://github.com/flutter/website/tree/main/src/content/reference/flutter-cli.md" title="Report an issue with this page" target="_blank" rel="noopener">report an issue</a>.</p></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="/assets/images/branding/flutter/logo/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="/tos">terms</a></li><li><a href="/brand">brand usage</a></li><li><a href="/security">security</a></li><li><a href="https://www.google.com/intl/en/policies/privacy">privacy</a></li><li><a href="https://esflutter.dev/">español</a></li><li><a href="https://flutter.cn" class="text-nowrap">社区中文资源</a></li><li><a href="https://blog.google/inside-google/company-announcements/standing-with-black-community">We stand in solidarity with the Black community. 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