ANR at DecoderWrapper.java line 107

[Zookey]

Hi,

I am using the library and it works great, but I see some ANR reports in Firebase Crashlytics.

One of the is at DecoderWrapper.java line 107.

This is full log that I have:

main (native): tid=1 systid=3145 
#00 pc 0xa1fb8 libc.so 
#01 pc 0x5b988 libc.so 
#02 pc 0x46070 libbinder.so 
#03 pc 0x472ac libbinder.so 
#04 pc 0x46ff0 libbinder.so 
#05 pc 0x3eafc libbinder.so 
#06 pc 0x67ce4 libcamera_client.so 
#07 pc 0x5886c libcamera_client.so 
#08 pc 0x198628 libandroid_runtime.so 
       at android.hardware.Camera._stopPreview(Native method)
       at android.hardware.Camera.stopPreview(Camera.java:775)
       at com.budiyev.android.codescanner.CodeScanner.stopPreviewInternal(CodeScanner.java:600)
       at com.budiyev.android.codescanner.CodeScanner.stopPreviewInternalSafe(CodeScanner.java:612)
       at com.budiyev.android.codescanner.CodeScanner.access$2000(CodeScanner.java:54)
       at com.budiyev.android.codescanner.CodeScanner$SurfaceCallback.surfaceDestroyed(CodeScanner.java:777)
       at android.view.SurfaceView.notifySurfaceDestroyed(SurfaceView.java:2186)
       at android.view.SurfaceView.updateSurface(SurfaceView.java:1318)
       at android.view.SurfaceView.onWindowVisibilityChanged(SurfaceView.java:419)
       at android.view.View.dispatchWindowVisibilityChanged(View.java:15475)
       at android.view.ViewGroup.dispatchWindowVisibilityChanged(ViewGroup.java:1637)
       at android.view.ViewGroup.dispatchWindowVisibilityChanged(ViewGroup.java:1637)
       at android.view.ViewGroup.dispatchWindowVisibilityChanged(ViewGroup.java:1637)
       at com.android.internal.policy.DecorView.dispatchWindowVisibilityChanged(DecorView.java:4745)
       at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:3459)
       at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:2893)
       at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:10445)
       at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1108)
       at android.view.Choreographer.doCallbacks(Choreographer.java:866)
       at android.view.Choreographer.doFrame(Choreographer.java:797)
       at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1092)
       at android.os.Handler.handleCallback(Handler.java:938)
       at android.os.Handler.dispatchMessage(Handler.java:99)
       at android.os.Looper.loopOnce(Looper.java:226)
       at android.os.Looper.loop(Looper.java:313)
       at android.app.ActivityThread.main(ActivityThread.java:8663)
       at java.lang.reflect.Method.invoke(Native method)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:567)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1135)

Is it possible to fix this?

[yuriy-budiyev]

It's in camera:
at android.hardware.Camera._stopPreview(Native method)
at android.hardware.Camera.stopPreview(Camera.java:775)

[yuriy-budiyev]

DecoderWrapper works at background thread, ANR isn't possible there.

[Zookey]

@yuriy-budiyev So, it seems that is the issue in Android Camera, right?