android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3147)

Question

Any idea why would this crash appear? The trace has only native code so very hard to track it down. Happens on Samsung Galaxy s3 platform 4.1.2 when I run animation inside a Fragment and when animation ends I call notifyDataSetChanged for the FragmentStatePagerAdapter. The issue is not 100% reproducible.

Thanks.

Trace:

03-01 11:50:11.836: E/AndroidRuntime(21136): FATAL EXCEPTION: main
03-01 11:50:11.836: E/AndroidRuntime(21136): java.lang.NullPointerException
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3147)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12646)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12754)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3151)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12646)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12754)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3151)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12646)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12754)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3151)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12646)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12754)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3151)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12646)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12754)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3151)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12646)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12754)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3151)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12646)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12754)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3151)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12646)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12754)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3151)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12646)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12754)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3151)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12646)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12754)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3151)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12646)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.View.getDisplayList(View.java:12754)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.HardwareRenderer$GlRenderer.draw(HardwareRenderer.java:1144)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewRootImpl.draw(ViewRootImpl.java:2273)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2145)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1956)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1112)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4472)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.Choreographer.doCallbacks(Choreographer.java:555)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.Choreographer.doFrame(Choreographer.java:525)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.os.Handler.handleCallback(Handler.java:615)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.os.Handler.dispatchMessage(Handler.java:92)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.os.Looper.loop(Looper.java:137)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at android.app.ActivityThread.main(ActivityThread.java:4898)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at java.lang.reflect.Method.invokeNative(Native Method)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at java.lang.reflect.Method.invoke(Method.java:511)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
03-01 11:50:11.836: E/AndroidRuntime(21136):    at dalvik.system.NativeStart.main(Native Method)

Answer 1

Fix was simple but no idea why works.

In the AnimationListener's onAnimationEnd callback I had a callback which triggered notifyDataSetChanged. I add that callback into Runnable and ran the Runnable with getView().post

@Override
                public void onAnimationEnd(Animation animation) {

                    getView().post(new Runnable() {

                        @Override
                        public void run() {
                            // notifyDataSetChanged here
                        }
                    });
                }