如何将通过Timer.periodic从API检索到的数据集成到Flutter Cubit项目中

class DataCubit extends Cubit<DataState> {
  DataCubit() : super(DataInitial());

  // TODO: Add methods to fetch data from API periodically
}

class DataCubit extends Cubit<DataState> {
  DataCubit() : super(DataInitial()) {
    Timer.periodic(Duration(seconds: 10), (timer) {
      // TODO: Fetch data from API and emit new state
    });
  }

  // TODO: Add methods to fetch data from API periodically
}

class DataCubit extends Cubit<DataState> {
  DataCubit() : super(DataInitial()) {
    Timer.periodic(Duration(seconds: 10), (timer) {
      fetchDataFromAPI();
    });
  }

  Future<void> fetchDataFromAPI() async {
    try {
      // TODO: Send API request and handle response
      // Example using Dio library:
      final response = await Dio().get('https://api.example.com/data');
      
      // TODO: Process response data and emit new state
      final data = response.data;
      emit(DataLoaded(data));
    } catch (error) {
      emit(DataError(error.toString()));
    }
  }
}

class DataScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return BlocBuilder<DataCubit, DataState>(
      builder: (context, state) {
        if (state is DataInitial) {
          return Text('Initializing...');
        } else if (state is DataLoaded) {
          return Text('Data: ${state.data}');
        } else if (state is DataError) {
          return Text('Error: ${state.error}');
        } else {
          return Text('Unknown state');
        }
      },
    );
  }
}