java.lang.NullPointerException

Attempt to invoke virtual method ''android.view.ViewTreeObserver android.view.View.getViewTreeObserver()'' on a null object reference


Solutions on the web21563

Solution icon of github
via GitHub by jsarabia1247
, 8 months ago
Attempt to invoke virtual method 'android.view.ViewTreeObserver android.view.View.getViewTreeObserver()' on a null object reference

Solution icon of github
via GitHub by MinkiPan
, 2 weeks ago
Attempt to invoke virtual method 'android.view.ViewTreeObserver android.view.View.getViewTreeObserver()' on a null object reference

Solution icon of github
Attempt to invoke virtual method 'android.view.ViewTreeObserver android.view.View.getViewTreeObserver()' on a null object reference

Solution icon of web
via mozilla.com by Unknown author, 7 months ago
Attempt to invoke virtual method ''android.view.ViewTreeObserver android.view.View.getViewTreeObserver()'' on a null object reference

Solution icon of github
Attempt to invoke virtual method 'android.view.ViewGroup$LayoutParams android.view.View.getLayoutParams()' on a null object reference `java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.ViewGroup$LayoutParams android.view.View.getLayoutParams()' on a null object reference

Solution icon of github
via GitHub by tlvprasad
, 9 months ago
Attempt to invoke a virtual method on a null object reference

Solution icon of stackoverflow
via Stack Overflow by Cristian Dean
, 6 months ago
Attempt to invoke a virtual method on a null object reference

Solution icon of github
via GitHub by cxmmxc
, 3 months ago
Attempt to invoke virtual method 'long android.graphics.Paint.getNativeInstance()' on a null object reference

Solution icon of github
Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference

Solution icon of github
via GitHub by B--B
, 1 year ago
Attempt to invoke virtual method 'void android.support.v7.widget.SearchView.setImeOptions(int)' on a null object reference

Stack trace

  • java.lang.NullPointerException: Attempt to invoke virtual method ''android.view.ViewTreeObserver android.view.View.getViewTreeObserver()'' on a null object reference at android.widget.PopupWindow.registerForScrollChanged(PopupWindow.java)

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