A NEW HOPE Sebastiano Poggi Android GDE, Novoda Eugenio Marletti Android GDE, Clue

No content

SDK for building high-performance, high-fidelity, apps for iOS and Android, from a single codebase

TECH PREVIEW

flapping wings quickly and lightly rapid variation of signal parameters a small bet

QUIZ TIME!

QUIZ TIME!

No content

No content

No content

No content

Open-source language Made by (and for) Google “Familiar” Java-like syntax More modern than Java

Dynamic language Statically checked (strong mode) Mixins, reified generics, async (streams!) const constructs Snapshots (serialisation) Runs in Dart VM, JS or AOT native

FRAMEWORK ENGINE

C++ FRAMEWORK ENGINE

FRAMEWORK ENGINE C++ TEXT (BLINK) SKIA

FRAMEWORK WIDGETS RENDERING DART:UI DART CUPERTINO MATERIAL ENGINE C++ TEXT (BLINK) SKIA

WIDGETS WIDGETS WIDGETS WIDGETS WIDGETS WIDGETS EVERYWHERE WIDGETS EVERYWHERE WIDGETS EVERYWHERE WIDGETS EVERYWHERE WIDGETS EVERYWHERE

Composition over inheritance Everything is a widget Declaration and binding together

No content

Stateless Stateful

Stateless class BoringText extends StatelessWidget { @override Widget build(BuildContext context) { return new Text("Hello world") } }

Stateful class Counter extends StatefulWidget { @override _CounterState createState() => new _CounterState(); }

Stateful class _CounterState extends State { int _counter = 0; void _increment() { setState(() { ++_counter; }); } @override Widget build(BuildContext context) { return new Text("Count: " + _counter); } }

Animations

No content

No content

Unit tests Instrumentation tests Widget tests

Smoooth (60 fps) Performance? Smoooth (60 fps)

Full control No OEM customisation Always up to date Inspect real source code which will be run Minimal Apk size: 8MB

Development experience

$ flutter doctor [✓] Flutter (on Mac OS X 10.12.4 16E195, channel unknown) • Flutter at /Users/takhion/flutter • Framework revision 031e042eee (3 weeks ago), 2017-03-17 15:24:54 • Engine revision c4edec7417 • Tools Dart version 1.23.0-dev.9.0 [✓] Host Executable Compatibility • Downloaded executables execute on host [✓] Android toolchain - develop for Android devices (Android SDK 25.0.2) • Android SDK at /Users/takhion/Android/sdk • Platform android-25, build-tools 25.0.2 • ANDROID_HOME = /Users/takhion/Android/sdk • Java binary at: /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/bin/java • Java version: Java(TM) SE Runtime Environment (build 1.8.0_25-b17) [✓] iOS toolchain - develop for iOS devices (Xcode 8.2.1) • Xcode at /Applications/Xcode.app/Contents/Developer • Xcode 8.2.1, Build version 8C1002 • ios-deploy 1.9.1 • CocoaPods version 1.2.0 [✓] Android Studio (version 2.2) • Android Studio at /Applications/Android Studio.app/Contents • Gradle version 2.14.1 [✓] Connected devices • Pixel • FA69N0309825 • android-arm • Android 7.1.1 (API 25)

Full control

$ flutter run Launching lib/main.dart on Pixel in debug mode... Running 'gradle assembleDebug'... Built build/app/outputs/apk/app-debug.apk (21.8MB). Uninstalling old version... Installing build/app/outputs/apk/app.apk... 6.0s Syncing files to device... 2.8s ! To hot reload your app on the fly, press "r". To restart the app entirely, press "R". The Observatory debugger and profiler is available at: http://127.0.0.1:8106/ For a more detailed help message, press "h". To quit, press "q".

No content

No content

No content

Full control

Full control

API 16+ ARM only iOS 8+ 64 bit (iPhone 5S+)

No content

No content

Eric Seidel Adam Barth Ian Hickson

flutter.io github.com/rock3r/squanchy-flutter bit.ly/a-new-hope-flutter

Eugenio Marletti @workingkills @seebrock3r Sebastiano Poggi