The main difference between Cubit and Bloc is that in Bloc you have Event class in addition to State. So, you are able to use EventTransformer function in order to manipulate your events.
The 'bloc' package contains things you will use in your Bloc layer, like the Bloc class. This isn't necessarily flutter dependent, it is just the logic architecture of your app. The 'flutter bloc' package contains elements you will use in your UI layer. It includes widgets like BlocProvider and BlocBuilder, which are widgets and thus flutter dependent.
I have built an app where I use flutter_bloc. i want to use go_router for navigation.but for dynamic routing how can i use GoRouter refreshListener parameter with flutter_bloc GoRouter( routes: [...
BLoC and MVVM seemed to be different when BLoC was introduced, but that differences faded away as BLoC implementations changed over time. Right now the only real difference is that BLoC doesn't specify a separate presentation logic and business logic, or at least it doesn't do it in an obvious manner. Presentation logic is the layer that understands interactions between UI elements and the ...
2 Actually if you need this bloc only in bottom sheet and nowhere else, the better and cleaner solution is create the StatefullWidget for bottom sheet content, create the Bloc inside this widget in initState() work with bloc in build() method and free resources in dispose() method.
BLoC is a very promising approach for state management in Flutter because of one signature ingredient: streams. They allow for decoupling the UI from the business logic and they play well with the Flutter-ish approach of rebuilding entire widget subtrees once they're outdated.
Since bloc 8.0.0 the syntax changed and you need to pass it as a transformer to the on function. Apart from the debouncing you should think about concurrency. To combine sequential processing with a debounce, you can provide the following function:
Like if you have one bloc named testbloc with multiple state then you can define multiple copies of bloc using bloc provider and in bloc builder you can reference the bloc.Catch is that your bloc can emit one state at one time and based on your requirement you can manage state.
Our case is to fire initial event on Bloc creation Possibilities overview case with inserting Bloc with BlocProvider - this is preferred way create: callback is fired only once when BlocProvider is mounted & BlocProvider would close () bloc when BlocProvider is unmounted dart
BlocProvider.value( value: BlocProvider.of<BlocA>(context), child: ScreenA(), ); when you have already created a bloc in a different BlocProvider and you just want that same bloc to be available somewhere else in the widget tree. I'm assuming that because this bloc wasn't created by the BlocProvider you're currently using (with BlocProvider.value) it won't handle closing the bloc - that will ...
