Flutter/アプリアイコン変更

アプリのアイコンを変更

pubspec.yml

dev_dependencies: 
  flutter_test:
    sdk: flutter
  flutter_launcher_icons: any

flutter packages get

アイコン画像を設定

pubspec.yml

flutter_icons:
 android: true 
 ios: true
 image_path: "assets/icon/icon_512x512.png"

アプリのアイコンを変更適応

flutter pub pub run flutter_launcher_icons:main

参考

https://qiita.com/k-nasa/items/33426af4d396b581c101