java.lang.NullPointerException

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  • java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getVisibility()' on a null object reference at com.example.zigo.photoencryption.ViewImageActivity.toggleTopBottomViews(ViewImageActivity.java:273) at com.example.zigo.photoencryption.TouchImageView$GestureListener.onSingleTapConfirmed(TouchImageView.java:764) at android.view.GestureDetector$GestureHandler.handleMessage(GestureDetector.java:300) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
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