如何从B-BLoC函数调用A-BLoC函数？

Question

所以，像大多数人一样，我对Flutter，Bloc和Firebase Analytics是个新手。有几种方法可以通过让一个监听另一个来同步区块，但它不太符合我的情况，因为我想跟踪一些“分析相关的状态变量”。

AnalyticsBloc extends Bloc<AnalyticsEvent, AnalyticsState> {
  final FirebaseAnalytics analytics;
  final FirebaseAnalyticsObserver observer;

  @override
    FirebaseAnalyticsState get initialState => FirebaseAnalyticsState.initial();

  void setScreen(String currentScreen) {
    // sends and stores the currentScreen in Bloc State
    dispatch(SetScreenEvent(currentScreen));
  }

  void sendEvent(String eventName) {
    // uses the stored currentScreen in Bloc State
    dispatch(SendEventEvent(eventName));
  }
  ...
}

class AppBloc extends Bloc<AppEvent, AppState> {
  @override
  AppState get initialState => AppState.initial();

  void someApplicationEvent() {
    // Problem: is there any way to trigger sendEvent from this Bloc?
    sendEvent('someAppEventTriggered');
    dispatch(ResetAppEvent());
  }
}

问题:有没有办法从AppBloc触发AnalyticsBloc.sendEvent

或者我应该用不同的方式设计它？

Answer 1

将blocA实例传递给blocB构造函数并调用blocA的函数