Can you tell how the MVVM architectural pattern is…

The MVVM (Model-View-ViewModel) architectural pattern in applications divides logic into three components:

Model — responsible for data and business logic.
View — displays the interface and interacts with the user.
ViewModel — acts as an intermediary between Model and View, containing presentation logic and state.

In Flutter, MVVM is implemented as follows:

Model — classes that describe data and methods to work with it (e.g., fetching from an API).
ViewModel — a class that contains state and methods to manage data, and notifies the View of changes (often using ChangeNotifier or Stream).
View — Flutter widgets that subscribe to changes in the ViewModel and update when the state changes.

Example of a simple ViewModel using ChangeNotifier:

class CounterViewModel extends ChangeNotifier {
  int _count = 0;

  int get count => _count;

  void increment() {
    _count++;
    notifyListeners();
  }
}

In the widget:

class CounterView extends StatelessWidget {
  final CounterViewModel viewModel;

  CounterView(this.viewModel);

  @override
  Widget build(BuildContext context) {
    return ChangeNotifierProvider(
      create: (_) => viewModel,
      child: Consumer<CounterViewModel>(
        builder: (context, vm, child) => Column(
          children: [
            Text('Count: \\${vm.count}'),
            ElevatedButton(
              onPressed: vm.increment,
              child: Text('Increment'),
            ),
          ],
        ),
      ),
    );
  }
}

Thus, the ViewModel manages state and logic, the View displays the UI and reacts to changes, and the Model stores data.

Can you tell how the MVVM architectural pattern is implemented in applications?