我知道你可以轻松地设置bloc的初始状态。当创建一个新的bloc时,是否有可能派发一个事件?
class MyBloc extends Bloc<MyEvent, MyState> {
MyBloc() :
this.dispatch(MyEvent()), // this line doesn't work
super();
@override
MyState get initialState => MyStateInitial();
@override
Stream<MyState> mapEventToState(MyEvent event) async* {
if (event is MyEvent) {
... do some stuff here ...
yield MyStateAfterMyEvent(someParameters, thatCantBe, setManually);
}
}
}
我知道有时将参数传递给bloc构造函数可以起作用。在我的情况下,参数是从互联网获取的,因此我需要更多的动态选项。如何实现这一点?