Android Question Google Play log erro

1. 
   java.lang.AbstractMethodError: abstract method not implemented
   at ice.videoviewExt.canPause(videoviewExt.java)
   at android.widget.MediaController.show(MediaController.java:337)
   at android.widget.MediaController.show(MediaController.java:298)
   at ice.videoviewExt$6.surfaceChanged(videoviewExt.java:422)
   at android.view.SurfaceView.updateWindow(SurfaceView.java:714)
   at android.view.SurfaceView.setFrame(SurfaceView.java:334)
   at android.view.View.layout(View.java:14253)
   at anywheresoftware.b4a.BALayout.onLayout(BALayout.java:41)
   at android.view.View.layout(View.java:14255)
   at android.view.ViewGroup.layout(ViewGroup.java:4413)
   at android.widget.FrameLayout.onLayout(FrameLayout.java:446)
   at android.view.View.layout(View.java:14255)
   at android.view.ViewGroup.layout(ViewGroup.java:4413)
   at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1670)
   at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1528)
   at android.widget.LinearLayout.onLayout(LinearLayout.java:1441)
   at android.view.View.layout(View.java:14255)
   at android.view.ViewGroup.layout(ViewGroup.java:4413)
   at android.widget.FrameLayout.onLayout(FrameLayout.java:446)
   at android.view.View.layout(View.java:14255)
   at android.view.ViewGroup.layout(ViewGroup.java:4413)
   at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1998)
   at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1812)
   at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1050)
   at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4560)
   at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
   at android.view.Choreographer.doCallbacks(Choreographer.java:562)
   at android.view.Choreographer.doFrame(Choreographer.java:532)
   at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
   at android.os.Handler.handleCallback(Handler.java:725)
   at android.os.Handler.dispatchMessage(Handler.java:92)
   at android.os.Looper.loop(Looper.java:137)
   at android.app.ActivityThread.main(ActivityThread.java:5171)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:511)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:564)
   at dalvik.system.NativeStart.main(Native Method)

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