[flutter_bloc_0.19.0] Old BlocProvider

main.dart

class MyWidget extends StatefulWidget {
  State<MyWidget> createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  MyBloc _myBloc;
  
  @override
  void initState() {
    super.initState();
    _myBloc = MyBloc();
  }
  
  @override
  Widget build(BuildContext context) {
    return BlocProvider(
      bloc: _myBloc,
      child: MyChild(),
    );
  }
  
  @override
  void dispose() {
    _myBloc.dispose();
    super.dispose();
  }
}