AsyncNotifier<S> class abstract

A concrete implementation of BaseNotifier for managing asynchronous state using AsyncState.

AsyncNotifier simplifies handling loading, data, and error states for async operations such as network requests, database queries, or any operation that can be in a loading, success, or error state.

S is the type of data managed by the notifier.

This class integrates with AsyncNotifierLifecycle for automatic initialization and provides convenient methods for transitioning between loading, data, and error states.

Example usage:

class MyAsyncNotifier extends AsyncNotifier<String> {
  @override
  Future<AsyncState<String>> onInit() async {
    // Simulate network request
    await Future.delayed(Duration(seconds: 2));
    return const AsyncState.data('Hello from AsyncNotifier!');
  }
}