随着新的隐私更改对 Android Q 生效,现在任何使用 MediaProjection
API 的应用都必须在清单下的服务标记中指定 android:foregroundServiceType 属性。
但是最近,我注意到尽管我设置了android:foregroundServiceType="mediaprojection"
但还是抛出了安全异常。有人知道我做错了什么吗?
清单:
<service
android:name=".services.MediaProjectionService"
android:enabled="true"
android:exported="false"
android:foregroundServiceType="mediaProjection" />
引发的异常:
java.lang.RuntimeException: Unable to start service com.package.app.services.MediaProjectionService@6d0fed2 with Intent { act=com.package.app.services.action.startrecording cmp=com.package.app/.services.MediaProjectionService(has extras) }: java.lang.SecurityException: Media projections require a foreground service of type ServiceInfo.FOREGROUND_SERVICE_TYPE_MEDIA_PROJECTION
at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:4103)
at android.app.ActivityThread.access$1800(ActivityThread.java:219)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1891)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7343)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:933)
Caused by: java.lang.SecurityException: Media projections require a foreground service of type ServiceInfo.FOREGROUND_SERVICE_TYPE_MEDIA_PROJECTION
at android.os.Parcel.createException(Parcel.java:2071)
at android.os.Parcel.readException(Parcel.java:2039)
at android.os.Parcel.readException(Parcel.java:1987)
at android.media.projection.IMediaProjection$Stub$Proxy.start(IMediaProjection.java:231)
at android.media.projection.MediaProjection.<init>(MediaProjection.java:58)
at android.media.projection.MediaProjectionManager.getMediaProjection(MediaProjectionManager.java:104)
at com.package.app.services.MediaProjectionService.startRecording(MediaProjectionService.java:190)
at com.package.app.services.MediaProjectionService.onStartCommand(MediaProjectionService.java:142)
at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:4085)
at android.app.ActivityThread.access$1800(ActivityThread.java:219)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1891)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7343)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:933)
Caused by: android.os.RemoteException: Remote stack trace:
at com.android.server.media.projection.MediaProjectionManagerService$MediaProjection.start(MediaProjectionManagerService.java:476)
at android.media.projection.IMediaProjection$Stub.onTransact(IMediaProjection.java:135)
at android.os.Binder.execTransactInternal(Binder.java:1021)
at android.os.Binder.execTransact(Binder.java:994)
PS:这在目标SDK 29的Android Q DP5 GSI上体验到。该应用程序适用于目标 sdk 28,无需任何更改。
你不要忘记将权限<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
添加到AndroidManifest.xml
吗?
更新
请务必在getMediaProjection()
之前致电startForeground()
!
最好的解决方案是在没有任何条件的情况下从onCreate()
调用startForeground()
,在通知中显示某种默认消息。然后,您可以随时执行逻辑并使用更新的通知调用NotificationManager.notify()
。
更改以下属性
android:foregroundServiceType="mediaProjection"
tools:targetApi="q"
在AndroidManifest中.xml为我工作。
< service
android:name="SERVICE_NAME"
android:foregroundServiceType="mediaProjection"
tools:targetApi="q"
android:enabled="true"
android:exported="false" />