如何使用flutter_bloc包将现有的存储库实例传递到Flutter中的下一个页面？

dependencies:
  flutter_bloc: ^7.0.0

class UserRepository {
  Future<User> getUserInfo() async {
    // 从数据源获取用户信息的逻辑
    return User(/* 用户信息 */);
  }
}

class UserBloc extends Bloc<UserEvent, UserState> {
  final UserRepository userRepository;

  UserBloc(this.userRepository) : super(UserInitial());

  @override
  Stream<UserState> mapEventToState(UserEvent event) async* {
    if (event is FetchUser) {
      yield UserLoading();

      try {
        final user = await userRepository.getUserInfo();
        yield UserLoaded(user);
      } catch (error) {
        yield UserError(error.toString());
      }
    }
  }
}

BlocProvider(
  create: (context) => UserBloc(userRepository),
  child: BlocBuilder<UserBloc, UserState>(
    builder: (context, state) {
      if (state is UserLoading) {
        return CircularProgressIndicator();
      } else if (state is UserLoaded) {
        final user = state.user;
        return Text(user.name);
      } else if (state is UserError) {
        return Text('Error: ${state.error}');
      }

      return Container();
    },
  ),
);

final userBloc = BlocProvider.of<UserBloc>(context);
userBloc.add(FetchUser());