如何在Cubit中使用CubitState的变量？颤振/区块

import 'package:flutter_bloc/flutter_bloc.dart';

class MyCubit extends Cubit<CubitState> {
  MyCubit() : super(InitialCubitState()); // 初始化Cubit的初始状态

  // 在这里定义各种操作和逻辑，例如处理用户交互、网络请求等

  void updateState(CubitState newState) {
    emit(newState); // 更新Cubit的状态
  }
}

abstract class CubitState {}

class InitialCubitState extends CubitState {}

class LoadingCubitState extends CubitState {}

class SuccessCubitState extends CubitState {
  final String data;

  SuccessCubitState(this.data);
}

class ErrorCubitState extends CubitState {
  final String errorMessage;

  ErrorCubitState(this.errorMessage);
}

class MyPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return BlocProvider(
      create: (context) => MyCubit(), // 创建Cubit实例
      child: BlocBuilder<MyCubit, CubitState>(
        builder: (context, state) {
          if (state is InitialCubitState) {
            return Text('初始状态');
          } else if (state is LoadingCubitState) {
            return CircularProgressIndicator();
          } else if (state is SuccessCubitState) {
            return Text('成功状态：${state.data}');
          } else if (state is ErrorCubitState) {
            return Text('错误状态：${state.errorMessage}');
          } else {
            return Text('未知状态');
          }
        },
      ),
    );
  }
}