React Native应用用HBRecorder时，Play Store装应用致录音静音问题

问题描述 #

在React Native应用中使用HBRecorder实现屏幕音视频录制时，遇到一个异常情况：从Play Store安装其他应用时，录音功能会被静音，推测是音频权限冲突导致录音失效。该问题在HBRecorder的演示项目和实际集成场景中均会出现，期望实现以下任一效果：

• 权限被抢占时收到通知
• 自动停止录制（当前视频仍能正常录制，但音频丢失）
• 保持应用对音频权限的独占性

核心错误日志 #

2023-08-29 11:53:46.844 1505-7216 AppOps system_server E evalMode() Foreground Record OP returned IGNORE, uid - 10980, capability - 8
2023-08-29 11:53:46.845 1291-1751 AudioPolicyService audioserver I App op 27 missing, silencing record AttributionSourceState{pid: 15457, uid: 10980, packageName: com.hbisoft.hbrecorderexample, attributionTag: (null), token: {no toString() implemented}, renouncedPermissions: [], next: []}

完整日志信息 #

2023-08-29 11:53:46.811 1246-15535 QC2C2DEngine media.hwcodec I calcYSize: unsupported or RGB color format, RGBA8888(1)
2023-08-29 11:53:46.828 1246-15535 QC2C2DEngine media.hwcodec I calcYSize: unsupported or RGB color format, RGBA8888(1)
2023-08-29 11:53:46.840 1225-8088 sensors-hal and....sensors@2.0-service.multihal I handle_sns_std_sensor_event:231, [SSC_LIGHT] P: 43(43),als:169,green:36,ir:4,delta_avg:0,delta_max:94,stdev:0,stdev_per_4sample:1,magig_code or itime:384
2023-08-29 11:53:46.844 1246-15535 QC2C2DEngine media.hwcodec I calcYSize: unsupported or RGB color format, RGBA8888(1)

2023-08-29 11:53:46.844 1505-7216 AppOps system_server E evalMode() Foreground Record OP returned IGNORE, uid - 10980, capability - 8
2023-08-29 11:53:46.845 1291-1751 AudioPolicyService audioserver I App op 27 missing, silencing record AttributionSourceState{pid: 15457, uid: 10980, packageName: com.hbisoft.hbrecorderexample, attributionTag: (null), token: {no toString() implemented}, renouncedPermissions: [], next: []}

2023-08-29 11:53:46.862 1246-15535 QC2C2DEngine media.hwcodec I calcYSize: unsupported or RGB color format, RGBA8888(1)
2023-08-29 11:53:46.868 3282-4415 ViewRootIm...orOverlay] com.android.systemui I dispatchDetachedFromWindow
2023-08-29 11:53:46.871 1505-7260 InputManager-JNI system_server W Input channel object '1e63692 ScreenDecorOverlay (client)' was disposed without first being removed with the input manager!
2023-08-29 11:53:46.873 1505-7260 WindowManager system_server I Destroying surface Surface(name=ScreenDecorOverlay$_3282)/@0x6b21ba2 called by com.android.server.wm.WindowStateAnimator.destroySurface:942 com.android.server.wm.WindowStateAnimator.destroySurfaceLocked:536 com.android.server.wm.WindowState.removeImmediately:2969 com.android.server.wm.WindowState.removeIfPossible:3227 com.android.server.wm.WindowState.removeIfPossible:3040 com.android.server.wm.WindowManagerService.removeWindow:2282 com.android.server.wm.Session.remove:236 android.view.IWindowSession$Stub.onTransact:743
2023-08-29 11:53:46.875 1505-1607 Looper system_server W Drained

设备与环境信息 #

• 设备：三星A52s (SM-A528B)
• Android版本：13
• SDK版本：33

已声明权限（AndroidManifest.xml） #

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.RECORD_AUDIO"/>
<uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
<uses-permission android:name="android.permission.VIBRATE"/>
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
<uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM"/>
<uses-permission android:name="android.permission.USE_EXACT_ALARM"/>
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>

解决方案尝试方向 #

1. 监听音频录制状态变化 #

Android 10+提供AudioManager.ACTION_AUDIO_RECORDING_STATE_CHANGED广播，注册接收器监听录制状态，当状态变为停止时，触发录制停止逻辑并通知React Native：

val filter = IntentFilter(AudioManager.ACTION_AUDIO_RECORDING_STATE_CHANGED)
registerReceiver(object : BroadcastReceiver() {
    override fun onReceive(context: Context?, intent: Intent?) {
        val state = intent?.getIntExtra(AudioManager.EXTRA_AUDIO_RECORDING_STATE, -1)
        if (state == AudioManager.AUDIO_RECORDING_STATE_STOPPED) {
            // 通知React Native音频丢失，停止录制
            sendEventToReactNative("recording_audio_lost", null)
        }
    }
}, filter)

2. 强化前台服务优先级 #

录制时确保服务以前台模式运行，提升进程优先级：

• 确认FOREGROUND_SERVICE权限已声明
• 启动录制时调用HBRecorder的前台服务配置接口，设置持续显示的通知内容

3. 主动检查AppOps权限状态 #

日志中App op 27 missing对应录音权限的AppOps状态异常，可在录制前后主动检查：

val appOpsManager = getSystemService(Context.APP_OPS_SERVICE) as AppOpsManager
val mode = appOpsManager.checkOpNoThrow(AppOpsManager.OPSTR_RECORD_AUDIO, android.os.Process.myUid(), packageName)
if (mode != AppOpsManager.MODE_ALLOWED) {
    // 权限异常，停止录制并提示用户
}

4. 尝试独占音频输入设备 #

修改HBRecorder底层音频配置，设置独占模式：

val audioAttributes = AudioAttributes.Builder()
    .setUsage(AudioAttributes.USAGE_MEDIA)
    .setContentType(AudioAttributes.CONTENT_TYPE_MUSIC)
    .build()
val audioFormat = AudioFormat.Builder()
    .setSampleRate(44100)
    .setEncoding(AudioFormat.ENCODING_PCM_16BIT)
    .setChannelMask(AudioFormat.CHANNEL_IN_MONO)
    .build()
val audioRecord = AudioRecord.Builder()
    .setAudioAttributes(audioAttributes)
    .setAudioFormat(audioFormat)
    .setBufferSizeInBytes(AudioRecord.getMinBufferSize(44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT))
    .setExclusive(true)
    .build()

5. 三星设备特殊适配 #

三星Android 13可能有自定义音频策略，可尝试添加三星特定权限：

<uses-permission android:name="com.samsung.android.providers.context.permission.WRITE_USE_APP_FEATURE_SURVEY"/>

同时检查设备权限管理器中是否有额外的录音限制项，确保应用允许后台录制音频。

内容的提问来源于stack exchange，提问作者rkenan