java.lang.NullPointerException: Attempt to invoke virtual method 'int androidx.viewpager2.widget.ViewPager2.getCurrentItem()' on a null object rfernce
49
What is a NullPointerException, and how do I fix it?
77648
How to get the result of OnPostExecute() to main activity because AsyncTask is a separate class?
98866
Null Pointer Exception on getGraphics()
108336
Nullable Object must have a value #2
68426
eclipse can't find android.support.v4.widget.SwipeRefreshLayout
103797
Android:android.view.ViewRoot$CalledFromWrongThreadException - How to solve the problem?
93104
What is a NumberFormatException and how can I fix it?
95009
Call Activity method from adapter
43209
Android, ListView IllegalStateException: "The content of the adapter has changed but ListView did not receive a notification"
26158
Android: java.lang.IllegalArgumentException: Invalid payload item type
45995
"ArrayAdapter requires the resource ID to be a TextView" XML problems
97325
DialogFragment causing nullpointer crash
9396
NullPointerException on AlarmManager.setRepeating() - ElapsedRealTime - Android
37988
System.NullPointerException: Attempt to de-reference a null object:
23999
NullPointerException while parsing XML callout response
64200
Can Java's NullPointerException be changed to report on which variable was null?
44087
ArrayAdapter requires ID to be a TextView error