You can generate app icon from this website https://app icon.co.
- Go to
<project>/assets/images/
and replace app_logo.png with your own logo. - Then run the command given bellow in your command terminal or follow instruction from https://pub.dev/packages/flutter_launcher_icons
flutter pub get
flutter pub run flutter_launcher_icons:main
Go to <project>/assets/images/
and replace product_skelleton.png with your own logo which show as a placeholder image( A square(24×24 or 370×370 or any) shape png image would be ideal- ).