Android targetSdkVersion 29时出现错误
我正在构建一个屏幕录制应用程序。但它只适用于targetsdkversion28,当传递google请求的targetsdkversion29时,会出现错误 代码 错误Android targetSdkVersion 29时出现错误,android,mediaprojection,Android,Mediaprojection,我正在构建一个屏幕录制应用程序。但它只适用于targetsdkversion28,当传递google请求的targetsdkversion29时,会出现错误 代码 错误 E/AndroidRuntime:致命异常:主 过程:com.megamestudio.screen_record_和_booster,PID:21862 java.lang.RuntimeException:向活动{com.megamestudio.screen_record_和_booster/com.megamestudi
E/AndroidRuntime:致命异常:主
过程:com.megamestudio.screen_record_和_booster,PID:21862
java.lang.RuntimeException:向活动{com.megamestudio.screen_record_和_booster/com.megamestudio.screen_record_和_booster/com.megamestudio.screen_record_和_booster.main activity}传递结果结果ResultInfo{who=null,request=1000,result=-1,data=Intent{(有额外功能)}失败:java.lang.SecurityException:媒体投影需要ServiceInfo.foreground\u service\u type\u Media\u PROJECTION类型的前台服务
位于android.app.ActivityThread.deliverResults(ActivityThread.java:4927)
位于android.app.ActivityThread.handleSendResult(ActivityThread.java:4968)
在android.app.servertransaction.ActivityResultItem.execute(ActivityResultItem.java:51)
在android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)中
在android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)中
在android.app.ActivityThread$H.handleMessage(ActivityThread.java:2043)上
位于android.os.Handler.dispatchMessage(Handler.java:107)
位于android.os.Looper.loop(Looper.java:224)
位于android.app.ActivityThread.main(ActivityThread.java:7548)
位于java.lang.reflect.Method.invoke(本机方法)
位于com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:539)
位于com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)
原因:java.lang.SecurityException:媒体投影需要ServiceInfo.foreground\u service\u type\u Media\u PROJECTION类型的前台服务
位于android.os.Parcel.createException(Parcel.java:2074)
位于android.os.Parcel.readException(Parcel.java:2042)
在android.os.Parcel.readException(Parcel.java:1990)上
在android.media.projection.imediprojection$Stub$Proxy.start(imediprojection.java:231)
在android.media.projection.MediaProjection.(MediaProjection.java:58)
在android.media.projection.MediaProjectionManager.getMediaProjection(MediaProjectionManager.java:104)
在com.megamestudio.screen_record_和_booster.MainActivity.onActivityResult(MainActivity.java:426)上
非常感谢 在API 29中添加了一个新的服务属性,显然,
MediaProjection
需要使用前台服务,因为异常说明了这一点。以下是您需要做的:
android:foregroundServiceType=“mediaProjection”
请注意,对于API 26或更高版本,前台服务需要一个持久通知和一个通知通道。
原因:java.lang.SecurityException:媒体投影需要类型为ServiceInfo.foreground\u service\u type\u Media\u PROJECTION的前台服务
@blackapps如何修复?谢谢使用ServiceInfo.foreground\u service\u type\u MEDIA\u PROJECTION类型的前台服务。非常感谢@你能给我一个特定的代码吗?谢谢不,我不能。很抱歉谢谢非常感谢!!!!如何在MyService类上获取MediaProjection并返回MainActivity?谢谢兄弟!
@SuppressLint("MissingSuperCall")
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode != REQUEST_CODE) {
Toast.makeText(this, "Error!", Toast.LENGTH_SHORT).show();
return;
}
if (resultCode != RESULT_OK) {
Toast.makeText(this,
"Screen Cast Permission Denied", Toast.LENGTH_SHORT).show();
return;
}
mMediaProjectionCallback = new MediaProjectionCallback();
mMediaProjection = mProjectionManager.getMediaProjection(resultCode, data);
mMediaProjection.registerCallback(mMediaProjectionCallback, null);
mVirtualDisplay = createVirtualDisplay();
mMediaRecorder.start();
}
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.megamestudio.screen_record_and_booster, PID: 21862
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1000, result=-1, data=Intent { (has extras) }} to activity {com.megamestudio.screen_record_and_booster/com.megamestudio.screen_record_and_booster.MainActivity}: java.lang.SecurityException: Media projections require a foreground service of type ServiceInfo.FOREGROUND_SERVICE_TYPE_MEDIA_PROJECTION
at android.app.ActivityThread.deliverResults(ActivityThread.java:4927)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:4968)
at android.app.servertransaction.ActivityResultItem.execute(ActivityResultItem.java:51)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2043)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:224)
at android.app.ActivityThread.main(ActivityThread.java:7548)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:539)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)
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:2074)
at android.os.Parcel.readException(Parcel.java:2042)
at android.os.Parcel.readException(Parcel.java:1990)
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.megamestudio.screen_record_and_booster.MainActivity.onActivityResult(MainActivity.java:426)