Virtual Display with Media Projection takes many seconds to stop/teardown?












0















I have an app that's using MediaProjection / Virtual Display in a service.



When everything runs and the permission is accepted to record the screen an icon indicating I have the permission appears in my status bar(it's the casting icon triggered by the system, I'm not showing it manually)



When a user leaves my app I begin the tear down process which triggers almost immediately but even after executing the whole tear down method it takes 3-4 seconds after the last log statement to actually remove the icon from the status bar.



Is this just normal, or is there some quicker way I can stop it? I don't want it to look like my app is still able to record a users screen once they've left my app which is what it looks like now.



fun tearDownMediaProjection() {
Log.("TearDown", "Starting Teardown"
virtualDisplay?.release()
mediaProjection?.unregisterCallback(mediaProjectionCallback)
mediaProjection?.stop()
mediaProjection = null
Log.("TearDown", "Ending Teardown"
}


When I'm testing this in the debugger, if I call this method with a stop point on the mediaProjection = null, wait a few seconds and then move forward through the null step, the icon immediately goes away, so the null line is the one that does it, but only after a delay?



Any suggestions on a quicker way to do this that might not be obvious?



Also - When my service starts the icon appears immediately, so there's no delay to start it?










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    0















    I have an app that's using MediaProjection / Virtual Display in a service.



    When everything runs and the permission is accepted to record the screen an icon indicating I have the permission appears in my status bar(it's the casting icon triggered by the system, I'm not showing it manually)



    When a user leaves my app I begin the tear down process which triggers almost immediately but even after executing the whole tear down method it takes 3-4 seconds after the last log statement to actually remove the icon from the status bar.



    Is this just normal, or is there some quicker way I can stop it? I don't want it to look like my app is still able to record a users screen once they've left my app which is what it looks like now.



    fun tearDownMediaProjection() {
    Log.("TearDown", "Starting Teardown"
    virtualDisplay?.release()
    mediaProjection?.unregisterCallback(mediaProjectionCallback)
    mediaProjection?.stop()
    mediaProjection = null
    Log.("TearDown", "Ending Teardown"
    }


    When I'm testing this in the debugger, if I call this method with a stop point on the mediaProjection = null, wait a few seconds and then move forward through the null step, the icon immediately goes away, so the null line is the one that does it, but only after a delay?



    Any suggestions on a quicker way to do this that might not be obvious?



    Also - When my service starts the icon appears immediately, so there's no delay to start it?










    share|improve this question

























      0












      0








      0








      I have an app that's using MediaProjection / Virtual Display in a service.



      When everything runs and the permission is accepted to record the screen an icon indicating I have the permission appears in my status bar(it's the casting icon triggered by the system, I'm not showing it manually)



      When a user leaves my app I begin the tear down process which triggers almost immediately but even after executing the whole tear down method it takes 3-4 seconds after the last log statement to actually remove the icon from the status bar.



      Is this just normal, or is there some quicker way I can stop it? I don't want it to look like my app is still able to record a users screen once they've left my app which is what it looks like now.



      fun tearDownMediaProjection() {
      Log.("TearDown", "Starting Teardown"
      virtualDisplay?.release()
      mediaProjection?.unregisterCallback(mediaProjectionCallback)
      mediaProjection?.stop()
      mediaProjection = null
      Log.("TearDown", "Ending Teardown"
      }


      When I'm testing this in the debugger, if I call this method with a stop point on the mediaProjection = null, wait a few seconds and then move forward through the null step, the icon immediately goes away, so the null line is the one that does it, but only after a delay?



      Any suggestions on a quicker way to do this that might not be obvious?



      Also - When my service starts the icon appears immediately, so there's no delay to start it?










      share|improve this question














      I have an app that's using MediaProjection / Virtual Display in a service.



      When everything runs and the permission is accepted to record the screen an icon indicating I have the permission appears in my status bar(it's the casting icon triggered by the system, I'm not showing it manually)



      When a user leaves my app I begin the tear down process which triggers almost immediately but even after executing the whole tear down method it takes 3-4 seconds after the last log statement to actually remove the icon from the status bar.



      Is this just normal, or is there some quicker way I can stop it? I don't want it to look like my app is still able to record a users screen once they've left my app which is what it looks like now.



      fun tearDownMediaProjection() {
      Log.("TearDown", "Starting Teardown"
      virtualDisplay?.release()
      mediaProjection?.unregisterCallback(mediaProjectionCallback)
      mediaProjection?.stop()
      mediaProjection = null
      Log.("TearDown", "Ending Teardown"
      }


      When I'm testing this in the debugger, if I call this method with a stop point on the mediaProjection = null, wait a few seconds and then move forward through the null step, the icon immediately goes away, so the null line is the one that does it, but only after a delay?



      Any suggestions on a quicker way to do this that might not be obvious?



      Also - When my service starts the icon appears immediately, so there's no delay to start it?







      android android-mediaprojection






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      asked Nov 24 '18 at 18:31









      Ben987654Ben987654

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