flutter_love_scope

flutter_love_scope provide flutter widgets for supporting solution base on flutter_scope and love.

Prerequisite

Since flutter_love_scope has knowledge dependencies of flutter_scope and love. It's good practice to learn them before using flutter_love_scope. Here are documentation sites:

• flutter_scope
• love

Overview

flutter_love_scope included and re-exported package flutter_scope and love.

flutter_love_scope also provide a configurable FinalSystem for integrating System with flutter.

FinalSystem

FinalSystem is a configuration that creates a running system, then expose its States<State> and Observer<Event>.

System<CounterState, CounterEvent> createCounterSystem() { ... }

...

FlutterScope(
  configure: [
    FinalSystem<CounterState, CounterEvent>(
      equal: (scope) => createCounterSystem(),
    ),
  ],
  child: Builder(
    builder: (context) {
      final myCounterStates = context.scope.getStates<CounterState>();
      final myEventObserver = context.scope.get<Observer<CounterEvent>>();
      return CounterPage(
        counterStates: myCounterStates,
        onIncreasePressed: () => myEventObserver.onData(Increment()),
      );
    },
  ),
);

Which simulates:

void flutterScope() async {

  // create a running system then exposes its states and event observer
  final System<CounterState, CounterEvent> system = createCounterSystem();
  final (states, eventObserver) = runSystemThenExposeStatesAndEventObserver(system);
  
  // resolve states and event observer in current scope
  final States<CounterState> myCounterStates = states;
  final Observer<CounterEvent> myEventObserver = eventObserver;

  // notify user about state updates
  final observation = myCounterStates.observe((count) {
    print('You have pushed the button this many times: $count');
  });
  
  // simulate user tap increase button asynchronously
  await Future.delayed(const Duration(seconds: 3));
  myEventObserver.onData(Increment());
  
}

License

The MIT License (MIT)