Attempt to read from field 'int android.view.View.mViewFlags' on a null object reference

在做动画是碰到这个错误，后面发现是我在加动画图片这边也在移除动画，

10-09 15:07:15.400: E/AndroidRuntime(10878): FATAL EXCEPTION: main
10-09 15:07:15.400: E/AndroidRuntime(10878): Process: com.geometry, PID: 10878
10-09 15:07:15.400: E/AndroidRuntime(10878): java.lang.NullPointerException: Attempt to read from field 'int android.view.View.mViewFlags' on a null object reference
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3198)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.View.updateDisplayListIfDirty(View.java:14056)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.View.getDisplayList(View.java:14084)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3389)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3368)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.View.updateDisplayListIfDirty(View.java:14021)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.View.getDisplayList(View.java:14084)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3389)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3368)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.View.updateDisplayListIfDirty(View.java:14021)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.View.getDisplayList(View.java:14084)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:3389)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:3368)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.View.updateDisplayListIfDirty(View.java:14021)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.View.getDisplayList(View.java:14084)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:266)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:272)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:311)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewRootImpl.draw(ViewRootImpl.java:2550)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2388)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2019)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1075)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5853)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.Choreographer.doCallbacks(Choreographer.java:580)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.Choreographer.doFrame(Choreographer.java:550)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.os.Handler.handleCallback(Handler.java:739)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.os.Handler.dispatchMessage(Handler.java:95)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.os.Looper.loop(Looper.java:135)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at android.app.ActivityThread.main(ActivityThread.java:5336)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at java.lang.reflect.Method.invoke(Native Method)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at java.lang.reflect.Method.invoke(Method.java:372)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
10-09 15:07:15.400: E/AndroidRuntime(10878):
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)

new Handler().post(new Runnable() {
public void run() {
parent.removeView(imageView);
}
});

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