ACTION_HEADSET_PLUG 广播延迟
我有自己的用于 Intent.ACTION_HEADSET_PLUG 操作的 BroadcastReceiver 实例。实际物理拔出耳机与我的 BroadcastReceiver 收到通知之间大约有 1-2 秒的延迟。
IntentFilter filter = new IntentFilter(Intent.ACTION_HEADSET_PLUG);
filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY - 1);
registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
// my code here
}
}, filter);
有什么想法可以减少延迟吗？
I have my own BroadcastReceiver instance for Intent.ACTION_HEADSET_PLUG action. There is about 1-2 seconds delay between actual physical unplugging a headset and a moment when my BroadcastReceiver is notified about that.
IntentFilter filter = new IntentFilter(Intent.ACTION_HEADSET_PLUG);
filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY - 1);
registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
// my code here
}
}, filter);
Any ideas how to decrease the delay?
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处理 AudioManager.ACTION_AUDIO_BECOMING_NOISY 广播就达到了目的:)它的意图是在耳机拔出后直接广播，没有任何延迟。
Handling
AudioManager.ACTION_AUDIO_BECOMING_NOISYbroadcast did the trick :) Its intent is broadcast directly after headset is unplugged without any delay.你运气不好。
延迟是在框架中硬编码的，查看
延迟为 1000 毫秒，因为音频管道中存在垃圾的风险。
You are out of luck.
The delay is hardcoded in the framework, look in
The delay is 1000 ms, due to the risk of having garbage in the audio pipeline.