Cannot use parent class of provided class about provider HOT 6 CLOSED

Correct. This is unsupported.

If you wish for your object to be used with AbstractCubit instead of IntCubit, have your provider use AbstractCubit:

BlocProvider<AbstractCubit<int>>(

from provider.

Thanks for the quick reply, but simply providing AbstractCubit instead of IntCubit does not work, since I need the IntCubit functionality in another part of the app (in this example the doStuff method). But I don't want to use IntCubit in BlocWidget, because it does not need it.

My only idea right now is to provide IntCubit as AbstractCubit and as IntCubit but I dislike this approach too, because there could be more classes in the hierarchy.

from provider.

What you're asking is not possible in any case. You'll always have to write extra logic to support both context.watch<AbstractCubit<int>> and context.watch<IntCubit>

from provider.

Why cannot context.watch<AbstractCubit<int>> use the IntCubit? I mean, the IntCubit is an AbstractCubit<int>. Is there no simple way how I can use abstractions?

from provider.

That's not how InheritedWidgets work. They use exact type matching. There's no such thing as specifying a type, but getting a subclass instead. You have to manually expose your provider with said type. No way around it.

from provider.

Thank you very much for your explanation

from provider.