为什么Android 6.0以上版本需要RECORD_AUDIO权限才能发送Intent.ACTION_HEADSET_PLUG

Question

我有一个BroadcastReceiver，我可以在运行时构造并注册以接收Intent.ACTION_HEADSET_PLUG以便无论何时插入或拔出耳机，都会收到通知。

在Android 6.0之前，它可以完美运行，但是从那以后，如果已授予RECORD_AUDIO权限，我只会收到Intent。

我本想使用该Intent的通知来询问用户RECORD_AUDIO权限，但是现在我没有这样做的好处。 因此，无论他们是否对音频感兴趣，我都必须请求启动许可。

我看不到为什么该应用程序仅要求您是否已插入耳机就需要RECORD_AUDIO 。

有没有一种方法可以接收ACTION_HEADSET_PLUG而无需在Android 6.0+和Android 23+中定位RECORD_AUDIO ？

注意，系统确实识别出已插入耳机（如下所示的系统日志），但是ACTION_HEADSET_PLUG不会发送到我的应用程序，除非已将其授予RECORD_AUDIO 。

06-13 22:18:21.176 5509-7053/? V/WiredAccessoryManager: notifyWiredAccessoryChanged: when=24261279475000 bits=SW_HEADPHONE_INSERT SW_MICROPHONE_INSERT mask=94
06-13 22:18:21.177 5509-7053/? V/WiredAccessoryManager: newName=h2w newState=1 headsetState=1 prev headsetState=0
06-13 22:18:21.177 5509-7053/? I/WiredAccessoryManager: MSG_NEW_DEVICE_STATE
06-13 22:18:21.178 5509-5509/? V/WiredAccessoryManager: headsetName:  connected
06-13 22:18:21.205 4345-4345/? I/AudioFlinger: openOutput(), module 10 Device 4, SamplingRate 8000, Format 0x1000000, Channels 1, flags 31
06-13 22:18:21.206 4345-4345/? I/AudioFlinger: HAL output buffer size 262144 frames, normal sink buffer size 262144 frames
06-13 22:18:21.215 4345-26896/? I/AudioFlinger: AudioFlinger's thread 0xe94fc000 ready to run
06-13 22:18:21.227 4345-26896/? D/audio_hw_primary: out_set_parameters: enter: usecase(3: compress-offload-playback) kvpairs: closing=true
06-13 22:18:21.227 4345-4345/? D/audio_hw_primary: out_set_parameters: enter: usecase(3: compress-offload-playback) kvpairs: exiting=1
06-13 22:18:21.229 4345-26892/? E/audio_hw_primary: offload_thread_loop: Compress handle is NULL
06-13 22:18:21.230 4345-4696/? D/audio_hw_primary: out_set_parameters: enter: usecase(1: low-latency-playback) kvpairs: routing=0
06-13 22:18:21.237 4345-26897/? I/AudioFlinger: AudioFlinger's thread 0xe6e039c0 ready to run
06-13 22:18:21.239 4345-26898/? I/AudioFlinger: AudioFlinger's thread 0xe6d83dc0 ready to run
06-13 22:18:21.248 8921-8921/? V/MediaRouter: Updating audio routes: AudioRoutesInfo{ type=HEADSET }
06-13 22:18:21.248 8921-8921/? V/MediaRouter: Dispatching route change: RouteInfo{ name=Headphones, description=null, status=null, category=RouteCategory{ name=null types=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO  groupable=false }, supportedTypes=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO , presentationDisplay=null }
06-13 22:18:21.250 25097-25097/? V/MediaRouter: Updating audio routes: AudioRoutesInfo{ type=HEADSET }
06-13 22:18:21.251 25097-25097/? V/MediaRouter: Dispatching route change: RouteInfo{ name=Headphones, description=null, status=null, category=RouteCategory{ name=null types=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO  groupable=false }, supportedTypes=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO , presentationDisplay=null }
06-13 22:18:21.253 5509-5509/? V/MediaRouter: Updating audio routes: AudioRoutesInfo{ type=HEADSET }
06-13 22:18:21.253 5509-5509/? V/MediaRouter: Dispatching route change: RouteInfo{ name=Headphones, description=null, status=null, category=RouteCategory{ name=null types=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO  groupable=false }, supportedTypes=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO , presentationDisplay=null }
06-13 22:18:21.274 7274-7335/? I/vol.Events: writeEvent level_changed STREAM_VOICE_CALL 5
06-13 22:18:21.275 7274-7335/? I/vol.Events: writeEvent level_changed STREAM_SYSTEM 7
06-13 22:18:21.282 7274-7274/? V/MediaRouter: Updating audio routes: AudioRoutesInfo{ type=HEADSET }
06-13 22:18:21.282 7274-7274/? V/MediaRouter: Dispatching route change: RouteInfo{ name=Headphones, description=null, status=null, category=RouteCategory{ name=null types=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO  groupable=false }, supportedTypes=ROUTE_TYPE_LIVE_AUDIO ROUTE_TYPE_LIVE_VIDEO , presentationDisplay=null }
06-13 22:18:21.300 5509-5509/? I/Telecom: WiredHeadsetManager: ACTION_HEADSET_PLUG event, plugged in: true, : WHC.oADA@A60
06-13 22:18:21.302 5509-7538/? I/Telecom: CallAudioRouteStateMachine: Message received: CONNECT_WIRED_HEADSET=1, arg1=0: WHC.oADA->CARSM.pM_CONNECT_WIRED_HEADSET@A60_0
06-13 22:18:21.303 5509-7538/? I/Telecom: Telecom: Non-call EVENT: AUDIO_ROUTE, Wired headset connected: WHC.oADA->CARSM.pM_CONNECT_WIRED_HEADSET@A60_0
06-13 22:18:21.303 5509-7538/? I/Telecom: CallAudioRouteStateMachine: Message received: SWITCH_HEADSET=1003, arg1=0: WHC.oADA->CARSM.pM_CONNECT_WIRED_HEADSET->CARSM.pM_SWITCH_HEADSET@A60_0_0
06-13 22:18:21.303 5509-7538/? I/Telecom: Telecom: Non-call EVENT: AUDIO_ROUTE, Leaving state QuiescentEarpieceRoute: WHC.oADA->CARSM.pM_CONNECT_WIRED_HEADSET->CARSM.pM_SWITCH_HEADSET@A60_0_0
06-13 22:18:21.303 5509-7538/? I/Telecom: Telecom: Non-call EVENT: AUDIO_ROUTE, Entering state QuiescentHeadsetRoute: WHC.oADA->CARSM.pM_CONNECT_WIRED_HEADSET->CARSM.pM_SWITCH_HEADSET@A60_0_0