我正在使用三个Flutter包来实现一项功能，用户通过拉动来刷新，使用BLoC逻辑检索地理坐标并将其传回Flutter。PulltoRefreshBLoCGeolocator问题是，当我在pull-to-refresh中发送调用时，我无法让BLoC产生返回结果。geolocation_bloc.dartclassGeolocationBlocextendsBloc{@overrideGeolocationStategetinitialState=>GeolocationUninitialized();@overrideStreammapEventToState(GeolocationE
