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106 lines
3.3 KiB
106 lines
3.3 KiB
import 'dart:async';
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import 'package:audio_service/audio_service.dart';
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import 'package:get/get.dart';
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import 'package:flutter/material.dart';
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import 'package:synchronized/synchronized.dart';
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import 'my_audio_handler.dart';
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class AudioServiceManager extends GetxService {
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static AudioServiceManager get to => Get.find();
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MyAudioHandler? _audioHandler;
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bool _isInitialized = false;
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final _lock = Lock();
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// 添加一个标志，表示是否已经尝试过初始化
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bool _hasAttemptedInit = false;
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Future<AudioServiceManager> init() async {
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print('初始化 AudioServiceManager');
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if (_isInitialized) {
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print('AudioServiceManager 已经初始化');
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return this;
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}
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// 如果已经尝试过初始化但失败了，不再重试
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if (_hasAttemptedInit) {
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print('AudioServiceManager 之前初始化失败，不再重试');
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return this;
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}
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_hasAttemptedInit = true;
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try {
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// 使用锁确保初始化的原子性
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await _lock.synchronized(() async {
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if (_isInitialized) return;
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// 使用 AudioService.init 初始化音频服务
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_audioHandler = await AudioService.init<MyAudioHandler>(
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builder: () => MyAudioHandler(),
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config: AudioServiceConfig(
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androidNotificationChannelId: 'com.example.deep_voice.channel.audio',
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androidNotificationChannelName: 'Deep Voice Audio Service',
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// 使用新创建的通知图标
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androidNotificationIcon: 'drawable/ic_notification',
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// 设置为 false，避免在没有用户交互时启动前台服务
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androidNotificationOngoing: false,
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// 设置为 true，当暂停时停止前台服务
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androidStopForegroundOnPause: true,
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androidShowNotificationBadge: true,
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notificationColor: Colors.blue,
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// 设置为 false，避免自动启动前台服务
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fastForwardInterval: const Duration(seconds: 10),
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rewindInterval: const Duration(seconds: 10),
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preloadArtwork: false,
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),
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);
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// 注册自定义音频处理器
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await Get.put(_audioHandler!, permanent: true);
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_isInitialized = true;
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print('AudioServiceManager 初始化成功');
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});
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return this;
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} catch (e) {
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print('AudioServiceManager初始化失败: $e');
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_isInitialized = false; // 确保失败时重置状态
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return this; // 即使失败也返回实例，避免空指针异常
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}
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}
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// 获取音频处理器
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MyAudioHandler? get audioHandler => _audioHandler;
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// 发送媒体按钮事件
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Future<void> sendMediaButtonEvent() async {
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if (_audioHandler != null) {
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try {
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await _audioHandler!.customAction('media_button');
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} catch (e) {
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print('发送媒体按钮事件失败: $e');
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}
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} else {
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print('AudioHandler 未初始化，无法发送媒体按钮事件');
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}
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}
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@override
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void onClose() async {
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_isInitialized = false;
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// 停止现有的音频处理器
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if (_audioHandler != null) {
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try {
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await _audioHandler!.stop();
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} catch (e) {
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print('停止 AudioHandler 失败: $e');
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}
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_audioHandler = null;
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}
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super.onClose();
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}
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}
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