We adapted standards to design and program Flutter, from high-level architectural principles all the way to indentation rules, from Flutter offical git repo :
https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo
Dart Style Guide focuses primarily on Dart-specific conventions: https://dart.dev/effective-dart
flutter_lints dartfmt
Add flutter_lints to your pubspec.yaml file as a dev dependency under the dev_dependencies section:
dev_dependencies:
flutter_lints: ^1.0.0
run the following command in the terminal to fetch and install the newly added package:
flutter pub get
Configure flutter_lints:
Mac Android Studio: "Preferences/Settings"
Window Android Studio: go to "Languages & Frameworks" > "Dart" > "Lints". Click on the "Configure" link next to the "Package: flutter_lints" option.
Enable flutter_lints rules: In the "Select Dart Lints" window, check the box next to "flutter_lints" to enable its lint rules. Click "OK" to apply the changes.
Checkout here flutter_lints rules
Configure and Enable dartfmt: In the "Preferences/Settings" window, go to "Languages & Frameworks" > "Dart" > "Enable 'Run 'dartfmt' on save' for .dart files". This will automatically format your Dart code using dartfmt whenever you save a file.