How can the dependency between system components be reduced?

To reduce dependencies between components in Flutter, you can use the following approaches:

• Dependency Injection: injecting dependencies through constructors or special DI libraries (e.g., Provider, GetIt).
• Using abstractions and interfaces: components interact through abstract classes or interfaces, not directly.
• Separation of concerns: dividing UI logic, business logic, and data access.
• Event-driven architecture: using streams, events, or patterns like BLoC to pass data.
• Using design patterns: such as MVVM, BLoC, Redux, which help structure code and minimize tight coupling.

Example using Provider for dependency injection:

class ApiService {
  void fetchData() {}
}

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final apiService = Provider.of<ApiService>(context);
    apiService.fetchData();
    return Container();
  }
}

void main() {
  runApp(
    Provider<ApiService>(
      create: (_) => ApiService(),
      child: MaterialApp(home: MyWidget()),
    ),
  );
}