NullPointerException for ProgressDialog in AsyncTask
49
What is a NullPointerException, and how do I fix it?
53461
Best practice: AsyncTask during orientation change
101059
Android - android.os.NetworkOnMainThreadException
64200
Can Java's NullPointerException be changed to report on which variable was null?
35590
How to fix NullPointerException in Java?
143012
Android AsyncTask for long running operations
25976
Android app crashes when rotating the "Getting preview" or "Posting edit" dialog
92844
getOnClickListener() in Android views
92797
How to debug NullPointerException in selenium-java
62188
Android Progress Bar is not dismissed
78586
Why doesn't "System.out.println" work in Android?
39427
Name the Thread of an AsyncTask
20020
NullPointerException accessing views in onCreate()
60930
How to call asynchronous method from synchronous method in C#?
84078
Why does notifyAll() raise IllegalMonitorStateException when synchronized on Integer?
87728
ArgumentNullException or NullReferenceException from extension method?
156776
AsyncTask threads never die