git clone flutter-flutter_-_2018-07-14_20-37-30.bundle -b master 

Flutter

A new mobile app SDK to help developers and designers build modern mobile apps for iOS and Android. Flutter is an open-source project currently in beta.

Documentation

• Main site: flutter.io
• Install
• Get started
• Contribute

Fast development

Flutter's hot reload helps you quicklyand easily experiment, build UIs, add features, and fixbugs. Experience sub-second reload times,without losing state, onemulators, simulators, and hardware for iOSand Android.

Expressive, beautiful UIs

Delight your users with Flutter's built-inbeautiful Material Design andCupertino (iOS-flavor) widgets, rich motion APIs,smooth natural scrolling, and platform awareness.

Browse the widget catalog.

Modern, reactive framework

Easily compose your UI with Flutter'smodern functional-reactive framework andrich set of platform, layout, and foundation widgets.Solve your tough UI challenges withpowerful and flexible APIs for 2D, animation, gestures,effects, and more.

```dartclass CounterState extends State { int counter = 0;

void increment() { // Tells the Flutter framework that state has changed, // so the framework can run build() and update the display. setState(() { counter++; }); }

Widget build(BuildContext context) { // This method is rerun every time setState is called. // The Flutter framework has been optimized to make rerunning // build methods fast, so that you can just rebuild anything that // needs updating rather than having to individually change // instances of widgets. return new Row( children: [ new RaisedButton( onPressed: increment, child: new Text('Increment'), ), new Text('Count: $counter'), ], ); }}```

Browse the widget catalogand learn more about thefunctional-reactive framework.

Access native features and SDKs

Make your app come to lifewith platform APIs, 3rd party SDKs,and native code.Flutter lets you reuse your existing Java/Kotlin and ObjC/Swift code,and access native features and SDKs on Android and iOS.

Accessing platform features is easy. Here is a snippet from our interop example:

dartFuture getBatteryLevel() async { var batteryLevel = 'unknown'; try { int result = await methodChannel.invokeMethod('getBatteryLevel'); batteryLevel = 'Battery level: $result%'; } on PlatformException { batteryLevel = 'Failed to get battery level.'; } setState(() { _batteryLevel = batteryLevel; });}

Learn how to use packages, orwrite platform channels,to access native code, APIs, and SDKs.

Unified app development

Flutter has the tools and libraries to help you easilybring your ideas to life on iOS and Android.If you don't have any mobile development experience, Flutteris an easy and fast way to build beautiful mobile apps.If you are an experienced iOS or Android developer,you can use Flutter for your views and leverage much of yourexisting Java/Kotlin/ObjC/Swift investment.

Build

• Beautiful app UIs
  • Rich 2D GPU-accelerated APIs
  • Reactive framework
  • Animation/motion APIs
  • Material Design and iOS widgets
• Fluid coding experience
  • Sub-second, stateful hot reload
  • IntelliJ: refactor, code completion, etc
  • Dart language and core libs
  • Package manager
• Full-featured apps
  • Interop with mobile OS APIs & SDKs
  • Gradle/Java/Kotlin
  • Cocoapods/ObjC/Swift

Optimize

• Test
  • Unit testing
  • Integration testing
  • On-device testing
• Debug
  • IDE debugger
  • Web-based debugger
  • async/await aware
  • Expression evaluator
• Profile
  • Timeline
  • CPU and memory
  • In-app perf charts

Deploy

• Compile
  • Native ARM code
  • Dead code elimination
• Distribution
  • App Store
  • Play Store

Learn more about what makes Flutter special in thetechnical overview.

Join us in our Gitter chat room or join our public mailing list,flutter-dev@googlegroups.com.

plus-circle Add Review

comment

Reviews