java.lang.NullPointerException: Attempt to read from field 'int android.view.View.mViewFlags' on a null object reference
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3552)
at android.view.View.updateDisplayListIfDirty(View.java:16183)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3751)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3731)
at android.view.View.updateDisplayListIfDirty(View.java:16151)
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3751)
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3731)
at android.view.View.updateDisplayListIfDirty(View.java:16151)
at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:669)
at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:675)
at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:787)
at android.view.ViewRootImpl.draw(ViewRootImpl.java:3071)
at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2877)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2483)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1494)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6977)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:883)
at android.view.Choreographer.doCallbacks(Choreographer.java:689)
at android.view.Choreographer.doFrame(Choreographer.java:624)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:869)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:159)
at android.app.ActivityThread.main(ActivityThread.java:6326)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1096)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:883)