test001/lib/scenes/RecordScene.dart

import 'dart:async';
import 'dart:io';
import 'dart:typed_data';
import 'package:record/record.dart';
import 'package:flutter/material.dart';
import 'package:logger/logger.dart';
import 'package:path_provider/path_provider.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:demo001/xunfei/xunfei_translate.dart';

/*
  录音测试场景
*/
class RecordScene extends StatefulWidget {
  @override
  _RecordSceneState createState() => _RecordSceneState();
}

class _RecordSceneState extends State<RecordScene> {
  late Directory savedirectory;

  final XunFeiTranslate xunfei = XunFeiTranslate(
      appId: "137dc132",
      apiKey: "1c1891a475e71250ecd1320303ad6545",
      apiSecret: "MjZhNDA1NTI1NWZkZDQxOTMxYzMyN2Yw");

  AudioRecorder _recorder = AudioRecorder();
  bool _isRecorderReady = false; //是否录音已准备
  bool _isRecording = false; //是否录音中

  @override
  void initState() {
    super.initState();
    _requestPermissions();
  }

  // 初始化录音器
  void _initRecorder() async {
    try {
      // 获取外部存储目录路径
      savedirectory = (await getExternalStorageDirectory())!;
      setState(() {
        _isRecorderReady = true;
      });
      _log('录音器初始化成功');
    } catch (e) {
      _log('初始化录音器失败: $e');
      setState(() {
        _isRecorderReady = false;
      });
    }
  }

  // 请求麦克风权限
  void _requestPermissions() async {
    try {
      if (await Permission.microphone.request().isGranted) {
        _log('麦克风权限已授予');
      } else {
        _log('麦克风权限被拒绝');
        setState(() {
          _isRecorderReady = false;
        });
      }
    } catch (e) {
      _log('请求麦克风权限失败: $e');
      setState(() {
        _isRecorderReady = false;
      });
    }
  }

  // 切换按钮状态
  void _toggleCallStatus() {
    if (!_isRecording) {
      //开始通话
      _startRecorder();
    } else {
      //结束通话
      _stopRecorder();
    }

    setState(() {
      _isRecording = !_isRecording;
    });
  }

  //开始录音
  void _startRecorder() async {
    try {
      if (!_isRecorderReady) {
        _initRecorder();
      }
      if (_isRecording) return; // 防止重复调用
      Stream<Uint8List> dataStream = await _recorder.startStream(RecordConfig(
          sampleRate: 16000, encoder: AudioEncoder.pcm16bits, numChannels: 1));
      xunfei.starttranslate(dataStream);
      setState(() {
        _isRecording = true;
      });
      _log('录音开始');
    } catch (e) {
      _log('录音开始 异常: $e');
    }
  }

  //结束录音
  void _stopRecorder() async {
    try {
      if (!_isRecording) return; // 防止重复调用
      await _recorder.stop();
      await _recorder.cancel();
      xunfei.stoptranslate();
      setState(() {
        _isRecorderReady = false;
        _isRecording = false;
      });
      _log('录音停止');
    } catch (e) {
      _log('录音停止 异常: $e');
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text("录音测试")),
      // body: ListView.builder(
      //   itemCount: _records.length,
      //   itemBuilder: (context, index) {
      //     var audio = _records[index];
      //     return _buildAudioMessage(audio);
      //   },
      // ),
      bottomNavigationBar: Padding(
          padding: const EdgeInsets.all(20.0),
          child: InkWell(
              onTap: _toggleCallStatus,
              child: Container(
                decoration: BoxDecoration(
                  borderRadius: BorderRadius.circular(30), // 圆角按钮
                  color: _isRecording
                      ? Colors.red
                      : Colors.green, // 通话状态红色，非通话状态绿色
                ),
                padding: EdgeInsets.symmetric(
                    vertical: 15, horizontal: 40), // 调整按钮大小
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    Icon(
                      _isRecording ? Icons.call_end : Icons.mic, // 图标变化
                      color: Colors.white,
                      size: 30,
                    ),
                    SizedBox(width: 10),
                    Text(
                      _isRecording ? '挂断' : '开始通话', // 状态文字变化
                      style: TextStyle(
                        color: Colors.white,
                        fontSize: 18,
                      ),
                    ),
                  ],
                ),
              ))),
    );
  }

  // 构建语音消息
  // Widget _buildAudioMessage(RecordData data) {
  //   Color buttColor = data.state == 0 ? Colors.red : Colors.green;
  //   return Padding(
  //     padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 15),
  //     child: Column(
  //       crossAxisAlignment: CrossAxisAlignment.start,
  //       children: [
  //         // 音频播放按钮
  //         GestureDetector(
  //           onTap: () {
  //             // _playRecording(data);
  //           },
  //           child: Container(
  //             padding: EdgeInsets.symmetric(vertical: 10, horizontal: 20),
  //             decoration: BoxDecoration(
  //               color: buttColor,
  //               borderRadius: BorderRadius.circular(30),
  //             ),
  //             child: Row(
  //               children: [
  //                 Icon(
  //                   Icons.play_arrow,
  //                   color: Colors.white,
  //                 ),
  //                 SizedBox(width: 10),
  //                 Text(
  //                   '播放音频',
  //                   style: TextStyle(color: Colors.white),
  //                 ),
  //               ],
  //             ),
  //           ),
  //         ),
  //         SizedBox(height: 5),
  //         // 文字内容
  //         // Text(
  //         //   message['text'],
  //         //   style: TextStyle(fontSize: 16),
  //         // ),
  //       ],
  //     ),
  //   );
  // }

  void _log(String msg) {
    Logger().f("LIWEI---------------:$msg");
  }
}