利用Bloc/Cubit实现颤振状态管理

enum TremorEvent {
  start,
  stop,
  increaseIntensity,
  decreaseIntensity,
}

import 'package:bloc/bloc.dart';

enum TremorState {
  idle,
  running,
  intensityChanged,
}

class TremorCubit extends Cubit<TremorState> {
  TremorCubit() : super(TremorState.idle);

  void startTremor() {
    // 处理开始颤振事件，更新状态为运行中
    emit(TremorState.running);
  }

  void stopTremor() {
    // 处理停止颤振事件，更新状态为空闲
    emit(TremorState.idle);
  }

  void increaseIntensity() {
    // 处理增加颤振强度事件，更新状态为强度变化
    emit(TremorState.intensityChanged);
  }

  void decreaseIntensity() {
    // 处理减少颤振强度事件，更新状态为强度变化
    emit(TremorState.intensityChanged);
  }
}

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';

class TremorScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Tremor App'),
      ),
      body: BlocBuilder<TremorCubit, TremorState>(
        builder: (context, state) {
          return Center(
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Text(
                  'Current State: ${state.toString()}',
                  style: TextStyle(fontSize: 20),
                ),
                SizedBox(height: 20),
                ElevatedButton(
                  onPressed: () {
                    BlocProvider.of<TremorCubit>(context).startTremor();
                  },
                  child: Text('Start Tremor'),
                ),
                ElevatedButton(
                  onPressed: () {
                    BlocProvider.of<TremorCubit>(context).stopTremor();
                  },
                  child: Text('Stop Tremor'),
                ),
                ElevatedButton(
                  onPressed: () {
                    BlocProvider.of<TremorCubit>(context).increaseIntensity();
                  },
                  child: Text('Increase Intensity'),
                ),
                ElevatedButton(
                  onPressed: () {
                    BlocProvider.of<TremorCubit>(context).decreaseIntensity();
                  },
                  child: Text('Decrease Intensity'),
                ),
              ],
            ),
          );
        },
      ),
    );
  }
}