23 changed files with 1265 additions and 43 deletions
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import 'package:get/get.dart'; |
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import '../controllers/meeting_record_controller.dart'; |
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|
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/// 录音模块依赖绑定类 |
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class MeetingRecordBinding extends Bindings { |
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@override |
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void dependencies() { |
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// 延迟注册 MeetingRecordController 控制器 |
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Get.lazyPut<MeetingRecordController>(() => MeetingRecordController()); |
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} |
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} |
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// meeting_record_controller.dart |
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import 'dart:async'; |
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import 'dart:math'; |
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import 'dart:typed_data'; |
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import 'package:flutter/material.dart'; |
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import 'package:get/get.dart'; |
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import '../../../data/services/asr_service.dart'; |
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import '../../../data/services/ble_manager.dart'; |
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|
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// 新增计时器状态枚举 |
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enum TimerStatus { |
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stopped, // 已停止/未开始 |
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running, // 运行中 |
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paused, // 已暂停 |
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} |
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|
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/// 控制器：处理录音状态、波形、文本转录等逻辑 |
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class MeetingRecordController extends GetxController |
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with SingleGetTickerProviderMixin { |
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//语言服务 |
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final AsrService _asrService = Get.find<AsrService>(); |
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//语言服务监听 |
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StreamSubscription? _recognitionSubscription; |
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//是否开启识别 |
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final RxBool isVoiceRecognitionActive = false.obs; |
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// 音频输入源 |
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bool _audioSourceType = false; |
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|
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//识别文本 |
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RxString intermediateContent = ''.obs; |
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RxString finalContent = ''.obs; |
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// final RxBool isRecording = false.obs; // 是否正在录音 |
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// 蓝牙服务 |
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final _bleManager = Get.find<BleManager>(); |
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final RxInt seconds = 0.obs; // 录音秒数 |
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final RxInt audioTypes = 0.obs; // 音频类型 |
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final RxBool isMarked = false.obs; // 是否标记重点 |
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final RxList<double> waveData = <double>[].obs; // 波形图数据 |
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RxBool showTextContent = false.obs; // 控制文本显示 |
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late TabController tabController; |
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Timer? _timer; |
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int _currentPosition = 0; // 当前播放位置（用于波形图动画） |
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|
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// 新增计时器状态变量 |
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final Rx<TimerStatus> timerStatus = TimerStatus.stopped.obs; |
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int _elapsedMilliseconds = 0; // 累计毫秒数 |
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int? _lastStartTime; // 上次开始计时的时间戳 |
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|
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@override |
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void onInit() { |
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super.onInit(); |
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_asrService.initialize(); |
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tabController = TabController(length: 2, vsync: this); |
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generateWaveData(); |
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// 移除初始化的 startTimer() 调用 |
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} |
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|
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@override |
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void onClose() { |
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_timer?.cancel(); |
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_asrService.dispose(); |
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|
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tabController.dispose(); |
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super.onClose(); |
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} |
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|
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/// 启动/继续计时器 |
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void startTimer() { |
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if (timerStatus.value != TimerStatus.running) { |
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timerStatus.value = TimerStatus.running; |
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_lastStartTime = DateTime.now().millisecondsSinceEpoch; |
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|
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_timer = Timer.periodic(const Duration(milliseconds: 200), (timer) { |
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if (timerStatus.value == TimerStatus.running) { |
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// 计算真实经过的时间（毫秒） |
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final currentTime = DateTime.now().millisecondsSinceEpoch; |
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_elapsedMilliseconds += currentTime - _lastStartTime!; |
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_lastStartTime = currentTime; |
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|
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// 转换为秒（四舍五入） |
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seconds.value = (_elapsedMilliseconds / 1000).round(); |
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update(); |
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} |
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}); |
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} |
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} |
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|
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/// 暂停计时器 |
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void pauseTimer() { |
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if (timerStatus.value == TimerStatus.running) { |
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timerStatus.value = TimerStatus.paused; |
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_timer?.cancel(); |
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_timer = null; |
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|
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// 更新累计时间 |
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final currentTime = DateTime.now().millisecondsSinceEpoch; |
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_elapsedMilliseconds += currentTime - _lastStartTime!; |
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_lastStartTime = null; |
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} |
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} |
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|
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/// 重置计时器 |
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void resetTimer() { |
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_timer?.cancel(); |
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_timer = null; |
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_elapsedMilliseconds = 0; |
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_lastStartTime = null; |
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seconds.value = 0; |
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timerStatus.value = TimerStatus.stopped; |
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} |
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|
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void toggleTextDisplay() { |
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showTextContent.toggle(); // 点击按钮切换显示状态 |
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} |
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|
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/// 切换录音状态 |
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Future<void> toggleRecording() async { |
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if (timerStatus.value == TimerStatus.stopped) { |
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await _startRecording(); |
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} else if (timerStatus.value == TimerStatus.running) { |
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await _pauseRecording(); |
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} else if (timerStatus.value == TimerStatus.paused) { |
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await _resumeRecording(); |
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} |
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} |
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|
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/// 生成模拟波形图数据 |
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void generateWaveData() { |
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waveData.value = List.generate(120, (i) { |
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final rand = (i % 20) / 20; |
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final baseHeight = (sin(i / 5) * 0.5 + 0.5) * 25; |
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return baseHeight + rand * 10; |
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}); |
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} |
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|
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// 处理语音识别事件 |
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void _handleRecognitionEvent(RecognitionEvent event) { |
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switch (event.type) { |
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case RecognitionEventType.intermediateResult: |
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print( |
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"_handleRecognitionEvent,intermediateResult,event.text=${event.text}"); |
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intermediateContent.value = event.text; |
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break; |
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case RecognitionEventType.finalResult: |
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print("_handleRecognitionEvent,finalResult,event.text=${event.text}"); |
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finalContent.value += _spliceText(event); |
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intermediateContent.value = ''; |
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//_originaBytes.add(event.audio!); |
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break; |
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default: |
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// 不做任何处理 |
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break; |
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} |
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} |
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|
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String _spliceText(RecognitionEvent event) { |
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String eventText = event.text; |
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String text = ''; |
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if (finalContent.value.isNotEmpty) { |
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if (event.role != '') { |
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final punctuations = { |
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'，', |
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'。', |
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'！', |
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'？', |
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'；', |
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'：', |
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',', |
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'.', |
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':', |
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';', |
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'!', |
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'?' |
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}; |
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final firstChar = eventText[0]; |
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if (punctuations.contains(firstChar)) { |
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text += '$firstChar\n'; |
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eventText = eventText.substring(1); |
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} else { |
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text += '\n'; |
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} |
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text += '说话人${event.role}：'; |
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} |
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} else { |
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text += '说话人${event.role}：'; |
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} |
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text += eventText; |
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return text; |
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} |
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|
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Future<void> _startRecording() async { |
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// 开始录音 |
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final recognitionStream = |
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await _asrService.startContinuousRecognition(_audioSourceType); |
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_recognitionSubscription?.cancel(); |
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_recognitionSubscription = |
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recognitionStream.listen(_handleRecognitionEvent); |
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await _asrService.enableRecord("录音"); |
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|
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startTimer(); |
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|
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// 蓝牙处理 |
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if (audioTypes == 0) { |
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_bleManager.openEncoder(); |
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} else if (audioTypes == 1) { |
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_bleManager.openDecoder(); |
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} else if (audioTypes == 2) { |
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_bleManager.openA2DPDecoder(); |
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} |
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} |
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|
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Future<void> _pauseRecording() async { |
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// 暂停录音 |
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await _asrService.stopContinuousRecognition(); |
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await _asrService.pauseRecord(); |
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pauseTimer(); |
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//await _asrService.pauseRecognition(); // 假设ASR服务有暂停方法 |
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} |
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|
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Future<void> _resumeRecording() async { |
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// 开始录音 |
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final recognitionStream = |
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await _asrService.startContinuousRecognition(_audioSourceType); |
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_recognitionSubscription?.cancel(); |
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_recognitionSubscription = |
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recognitionStream.listen(_handleRecognitionEvent); |
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startTimer(); |
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|
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//await _asrService.resumeRecognition(); // 假设ASR服务有继续方法 |
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} |
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|
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/// 切换是否标记为重点 |
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void toggleMarked() { |
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isMarked.toggle(); |
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} |
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|
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/// 格式化时间为 mm:ss |
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String formatTime(int seconds) { |
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// 实现你的时间格式化逻辑 |
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return '${(seconds ~/ 60).toString().padLeft(2, '0')}:${(seconds % 60).toString().padLeft(2, '0')}'; |
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} |
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|
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/// 游标在波形图中的位置（0~1） |
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double get cursorPosition => _currentPosition / waveData.length; |
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|
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/// 保存录音（目前模拟为返回上一页） |
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Future<void> saveRecording() async { |
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resetTimer(); // 重置计时器 |
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_bleManager.closeCodec(); |
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await _asrService.stopRecord(); |
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await _asrService.stopContinuousRecognition(); |
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Get.back(); |
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} |
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} |
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@ -0,0 +1,239 @@ |
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import 'package:flutter/material.dart'; |
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import 'package:flutter_screenutil/flutter_screenutil.dart'; |
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import 'package:get/get.dart'; |
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import 'package:lottie/lottie.dart'; |
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import '../controllers/meeting_record_controller.dart'; |
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|
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class MeetingRecordView extends GetView<MeetingRecordController> { |
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const MeetingRecordView({super.key}); |
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|
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@override |
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Widget build(BuildContext context) { |
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return Scaffold( |
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appBar: AppBar( |
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leading: const BackButton(), |
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title: const Text('新录音 29', style: TextStyle(fontSize: 18)), // 更新为29 |
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elevation: 0, |
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backgroundColor: Colors.white, |
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foregroundColor: Colors.black, |
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), |
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body: Column( |
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children: [ |
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TabBar( |
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controller: controller.tabController, |
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indicatorColor: Colors.red, |
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labelColor: Colors.black, |
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unselectedLabelColor: Colors.grey, |
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tabs: const [ |
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Tab(text: '音频'), |
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Tab(text: '文本'), |
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], |
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), |
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Expanded( |
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child: TabBarView( |
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controller: controller.tabController, |
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children: [ |
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_buildAudioTab(context), |
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_buildTextTab(context), |
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], |
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), |
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), |
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], |
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), |
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); |
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} |
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|
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Widget _buildAudioTab(BuildContext context) { |
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return Obx(() => Column( |
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children: [ |
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const SizedBox(height: 24), |
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SizedBox( |
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height: 120, |
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child: Stack( |
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alignment: Alignment.center, |
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children: [ |
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CustomPaint( |
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painter: WaveformPainter( |
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controller.waveData, |
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cursorPosition: controller.cursorPosition, |
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), |
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size: Size.infinite, |
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), |
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Positioned( |
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left: MediaQuery.of(context).size.width * |
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controller.cursorPosition, |
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child: Container( |
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width: 2, |
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height: 120, |
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color: Colors.red, |
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), |
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), |
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], |
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), |
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), |
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const SizedBox(height: 16), |
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Text( |
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controller.formatTime(controller.seconds.value), |
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style: const TextStyle(fontSize: 48, fontWeight: FontWeight.bold), |
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), |
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const Spacer(), |
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_buildBottomBar(context), |
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const SizedBox(height: 32), |
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], |
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)); |
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} |
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|
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Widget _buildTextTab(BuildContext context) { |
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return Obx(() => Column( |
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children: [ |
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const SizedBox(height: 48), |
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Center( |
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child: Column( |
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children: [ |
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const Icon(Icons.graphic_eq, color: Colors.red, size: 32), |
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const SizedBox(height: 8), |
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Text( |
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controller.formatTime(controller.seconds.value), |
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style: const TextStyle( |
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fontSize: 36, fontWeight: FontWeight.bold), |
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), |
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], |
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), |
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), |
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const SizedBox(height: 24), |
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// 新增：转文本提示区域 |
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if (!controller.showTextContent.value) ...[ |
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const Text('无文本', |
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style: TextStyle( |
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color: Colors.grey, |
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fontSize: 16, |
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)), |
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const SizedBox(height: 16), |
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ElevatedButton( |
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onPressed: controller.toggleTextDisplay, |
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style: ElevatedButton.styleFrom( |
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backgroundColor: Colors.red, |
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foregroundColor: Colors.white, |
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shape: RoundedRectangleBorder( |
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borderRadius: BorderRadius.circular(20), |
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), |
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padding: const EdgeInsets.symmetric( |
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horizontal: 24, |
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vertical: 8, |
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), |
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), |
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child: const Text('转文本'), |
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), |
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], |
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// 文本内容区域（转文本后显示） |
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if (controller.showTextContent.value) |
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Expanded( |
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child: Padding( |
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padding: const EdgeInsets.symmetric(horizontal: 24), |
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child: SingleChildScrollView( |
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child: Text( |
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'${controller.finalContent.value}${controller.intermediateContent.value}', |
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style: const TextStyle(fontSize: 16), |
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), |
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), |
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), |
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), |
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const Spacer(), |
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_buildBottomBar(context), |
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const SizedBox(height: 32), |
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], |
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)); |
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} |
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|
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Widget _buildBottomBar(BuildContext context) { |
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return Row( |
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mainAxisAlignment: MainAxisAlignment.spaceEvenly, |
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children: [ |
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GestureDetector( |
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onTap: controller.toggleMarked, |
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child: Obx(() => CircleAvatar( |
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radius: 32, |
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backgroundColor: Colors.white, |
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child: Icon( |
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controller.isMarked.value ? Icons.star : Icons.star_border, |
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size: 36, |
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color: |
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controller.isMarked.value ? Colors.orange : Colors.grey, |
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), |
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)), |
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), |
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GestureDetector( |
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onTap: controller.toggleRecording, |
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child: Obx(() => CircleAvatar( |
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radius: 40, |
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backgroundColor: Colors.white, |
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child: Icon( |
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controller.timerStatus.value == TimerStatus.running |
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? Icons.pause |
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: Icons.play_arrow, |
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size: 44, |
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color: Colors.red, |
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), |
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)), |
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), |
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GestureDetector( |
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onTap: controller.saveRecording, |
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child: const CircleAvatar( |
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radius: 32, |
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backgroundColor: Colors.white, |
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child: Icon( |
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Icons.check, |
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size: 36, |
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color: Colors.green, |
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), |
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), |
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), |
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], |
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); |
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} |
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} |
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|
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class WaveformPainter extends CustomPainter { |
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final List<double> data; |
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final double cursorPosition; |
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|
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WaveformPainter(this.data, {required this.cursorPosition}); |
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|
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@override |
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void paint(Canvas canvas, Size size) { |
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final paint = Paint() |
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..color = Colors.blue[300]! |
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..strokeWidth = 2 |
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..strokeCap = StrokeCap.round; |
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|
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final cursorPaint = Paint() |
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..color = Colors.red |
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..strokeWidth = 2; |
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|
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final double barWidth = size.width / data.length; |
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final centerY = size.height / 2; |
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|
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for (int i = 0; i < data.length; i++) { |
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final x = i * barWidth + barWidth / 2; |
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final height = data[i]; |
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canvas.drawLine( |
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Offset(x, centerY - height), |
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Offset(x, centerY + height), |
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paint, |
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); |
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} |
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|
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final cursorX = size.width * cursorPosition; |
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canvas.drawLine( |
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Offset(cursorX, 0), |
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Offset(cursorX, size.height), |
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cursorPaint, |
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); |
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} |
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|
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@override |
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bool shouldRepaint(covariant WaveformPainter oldDelegate) { |
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return oldDelegate.data != data || |
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oldDelegate.cursorPosition != cursorPosition; |
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} |
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} |
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