Attempt to invoke virtual method 'void android.widget.Spinner.setSelection(int)' on a null object reference
49
What is a NullPointerException, and how do I fix it?
144658
System.NullPointerException: Attempt to de-reference a null object ,sravn
158745
onActivityResult is not being called in Fragment
32065
Attempt to de-reference a null object: Trigger
9396
NullPointerException on AlarmManager.setRepeating() - ElapsedRealTime - Android
144423
"No enclosing instance of type" error while calling method from another class in Android
31537
Checking for null before event dispatching... thread safe?
96046
Static fields on a null reference in Java
10818
NullPointerException : println needs a message in android
68787
Why The constructor ArrayAdapter(new View.OnKeyListener(){}, int, String[]) is undefined
5052
RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
69771
NullPointerException when setting attribute?
64200
Can Java's NullPointerException be changed to report on which variable was null?
151014
How to get int value from spinner
70532
NullReferenceException after POST
46857
Compiler warning: null reference exception
8793
Android and getting a view with id cast as a string