Linuxtag 2020

Prerequisites

Flutter & Dart

sudo snap install android-studio --classic
sudo snap install flutter --classic

Add ~/snap/flutter/common/flutter/bin/cache/dart-sdk/bin to path for dart.

Android Studio & Android SDK

https://flutter.dev/docs/get-started/install/linux

• Tools → SDK Manager → Android 10.0 (29)
• Tools → AVD Manager → Create Virtual Device
• File → Settings → Plugins → Flutter
• File → Settings → Plugins → Dart

Dart

• dart scripting
• list, maps, files, print
• async, await
• http
• json

Flutter command line

• flutter doctor
• flutter create
• flutter run
• pubspec.yaml → flutter pub get

Emulator

• flutter emulators
• flutter emulators --create
• flutter emulators --launch flutter_emulator

App

• MaterialApp
  • Theme
  • Hot Reloading
• Widgets → StatefulWidget
  • setState
• Navigator with parameters

Debugging

Testing

• flutter test
• test driver → flutter drive --target=test_driver/screenshot.dart

Deployment

• flutter build appbundle --no-shrink
• flutter build apk --no-shrink --split-per-abi
• https://flutter.dev/docs/deployment/android#configure-signing-in-gradle
• https://github.com/elsamuko/clusterup
• https://play.google.com/store/apps/details?id=com.devsamuko.clusterup