How to generate Flutter app icons for iOS and Android

#flutter

TL;DR

Use flutter_launcher_icons that Command line tool.

Environment

Flutter 0.1.5
Dart 2.0.0-dev.28.0
flutter_launcher_icons 0.2.0

How to create

1. Add `flutter_launcher_icons` Plugin

Add flutter_launcher_icons to pubspec.yaml

dev_dependencies: 
  flutter_test:
    sdk: flutter

  flutter_launcher_icons: "^0.2.0"

flutter_icons:
  image_path: "icon/icon.png" 
  android: true
  ios: true

2. Prepare app icon

Prepare an app icon for the specified path.
e.g. icon/icon.png

3. Create app icons

Execute this on terminal.

$ flutter pub get
$ flutter pub pub run flutter_launcher_icons:main

File list

These are file list after command execution.

+1 -1 M android/app/src/main/AndroidManifest.xml
+0 -0 M android/app/src/main/res/mipmap-hdpi/ic_launcher.png
+0 -0 M android/app/src/main/res/mipmap-mdpi/ic_launcher.png
+0 -0 M android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
+0 -0 M android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
+0 -0 M android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
+0 -0 A icon/ic_launcher.png
+71 -0 A ios/Podfile
+1 -1 M ios/Runner.xcodeproj/project.pbxproj
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-20x20@1x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-20x20@2x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-20x20@3x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-29x29@1x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-29x29@2x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-29x29@3x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-40x40@1x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-40x40@2x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-40x40@3x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-60x60@1x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-60x60@2x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-60x60@3x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-76x76@1x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-76x76@2x.png
+0 -0 A ios/Runner/Assets.xcassets/AppIcon.appiconset/AppIcon-83.5x83.5@2x.png
+56 -0 M pubspec.lock
+5 -0 M pubspec.yaml