81 lines
2.9 KiB
Dart
81 lines
2.9 KiB
Dart
import 'dart:async';
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import 'package:audio_session/audio_session.dart';
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import 'package:hgdj/hj_page/short_video/view/video_player_base_logic.dart';
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import 'package:hgdj/tools_base/debug_log.dart';
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import 'package:hgdj/tools_base/event_bus/event_bus_util.dart';
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import 'package:hgdj/tools_base/event_bus/events.dart';
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/// 监听音频环境变化，自动暂停所有视频播放，防止音频通过手机外放泄露隐私：
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/// 1. 耳机 / 蓝牙断开（音频切回外放）
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/// 2. 来电、微信通话等其他 App 抢占音频（中断）
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class HeadphoneMonitor {
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HeadphoneMonitor._();
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static final HeadphoneMonitor instance = HeadphoneMonitor._();
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/// 断开后会导致音频切回外放的「私密」输出设备类型（移除时需暂停）
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static const _privateOutputTypes = {
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AudioDeviceType.bluetoothA2dp,
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AudioDeviceType.bluetoothSco,
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AudioDeviceType.wiredHeadset,
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AudioDeviceType.wiredHeadphones,
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AudioDeviceType.usbAudio,
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};
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bool _started = false;
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StreamSubscription? _noisySub;
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StreamSubscription? _interruptSub;
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StreamSubscription? _deviceSub;
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Future<void> start() async {
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if (_started) return;
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_started = true;
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try {
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final session = await AudioSession.instance;
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await session.configure(const AudioSessionConfiguration.music());
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// 耳机拔出 / 蓝牙断开（音频切回外放）
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_noisySub = session.becomingNoisyEventStream.listen((_) {
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debugLog('耳机断开 → 自动暂停所有播放');
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pauseAll();
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});
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// 兜底：部分机型(华为/荣耀等)蓝牙断开不发 becomingNoisy 广播，改用更底层的设备移除回调兜底
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_deviceSub = session.devicesChangedEventStream.listen((event) {
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final unplugged = event.devicesRemoved
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.any((d) => d.isOutput && _privateOutputTypes.contains(d.type));
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if (unplugged) {
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debugLog('音频输出设备移除(蓝牙/耳机) → 自动暂停所有播放');
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pauseAll();
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}
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});
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// 来电 / 微信通话等抢占音频（中断）→ 暂停；duck（短促提示音降音量）不处理
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_interruptSub = session.interruptionEventStream.listen((event) {
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if (event.begin && event.type != AudioInterruptionType.duck) {
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debugLog('音频被打断(来电/通话等) → 自动暂停所有播放');
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pauseAll();
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}
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});
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} catch (e) {
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_started = false;
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debugLog('HeadphoneMonitor.start error: $e');
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}
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}
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/// 暂停所有正在播放的视频（长视频/直播/简单播放器/短视频列表）
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void pauseAll() {
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// 长视频详情页 / 直播 / 简单播放器（统一走 eventBus）
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eventBus.emit(PauseVideoEvent());
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// 短视频列表页
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VideoPlayerBaseLogic.pauseAll();
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}
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void dispose() {
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_noisySub?.cancel();
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_noisySub = null;
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_interruptSub?.cancel();
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_interruptSub = null;
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_deviceSub?.cancel();
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_deviceSub = null;
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_started = false;
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}
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}
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