Flutter app state

state.dart

// CREATE STATE HERE
class Inherited extends InheritedNotifier<AppState> {
  const Inherited({required super.child, super.key, required super.notifier});

  static AppState? of(BuildContext context) {
    return context.dependOnInheritedWidgetOfExactType<Inherited>()!.notifier;
  }

  @override
  bool updateShouldNotify(InheritedNotifier<AppState> oldState) {
    return true;
  }
}

//BASE STATE CLASS, KEEP APPLICATION DATA IN HERE
class AppState extends ChangeNotifier {
  User? user;

  void login() async {
    user = await serverRequest.getUser();
    notifyListeners();
  }
}


// BASE RENDER WIDGET
class Main extends StatelessWidget  {
  @override
  Widget build(BuildContext context) {
    return Inherited(
      notifier: AppState(),
      child: router(),
    );
  }
}

// RUN FLUTTER LIKE THIS
runApp(Material(
  child: Main(),
));


// QUERY STATE IN RANDOM WIDGETS, NEED TO BE NESTED UNDER MAIN
AppState provider = Inherited.of(context)!;