Hydrated Notifier

Features

An extension to the state_notifier library which automatically persists and restores states built on top of hive.

Usage

Setup HydratedStorage

void main() async {
  WidgetsFlutterBinding.ensureInitialized();

  /// Initialize storage
  HydratedStateNotifier.storage = await HydratedStorage.build(
    storageDirectory: kIsWeb
        ? HydratedStorage.webStorageDirectory
        : await getTemporaryDirectory(),
  );

  runApp(App())
}

Create a HydratedStateNotifier

class CounterNotifier extends HydratedStateNotifier<int> {
  CounterNotifier() : super(0);

  void increment() => state = state + 1;

  @override
  int fromJson(Map<String, dynamic> json) => json['value'] as int;

  @override
  Map<String, int> toJson(int state) => { 'value': state };
}

Now the CounterNotifier will automatically persist/restore their state. We can increment the counter value, hot restart, kill the app, etc... and the previous state will be retained.

Additional information

This is a fork of hydrated_bloc.