indicator.setViewPager(viewPager) set twice exception

[LiuDeng]

12-17 09:50:04.638 12608-12608/? A/MobUncaughtExceptionHandler: null
java.lang.NullPointerException
at android.animation.AnimatorSet$AnimatorSetListener.onAnimationEnd(AnimatorSet.java:744)
at android.animation.ValueAnimator.endAnimation(ValueAnimator.java:1012)
at android.animation.ValueAnimator.access$400(ValueAnimator.java:51)
at android.animation.ValueAnimator$AnimationHandler.doAnimationFrame(ValueAnimator.java:623)
at android.animation.ValueAnimator$AnimationHandler.run(ValueAnimator.java:639)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
at android.view.Choreographer.doCallbacks(Choreographer.java:562)
at android.view.Choreographer.doFrame(Choreographer.java:531)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)
12-17 09:50:04.646 12608-12608/? E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.NullPointerException
at android.animation.AnimatorSet$AnimatorSetListener.onAnimationEnd(AnimatorSet.java:744)
at android.animation.ValueAnimator.endAnimation(ValueAnimator.java:1012)
at android.animation.ValueAnimator.access$400(ValueAnimator.java:51)
at android.animation.ValueAnimator$AnimationHandler.doAnimationFrame(ValueAnimator.java:623)
at android.animation.ValueAnimator$AnimationHandler.run(ValueAnimator.java:639)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
at android.view.Choreographer.doCallbacks(Choreographer.java:562)
at android.view.Choreographer.doFrame(Choreographer.java:531)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)