NullpointerException when setting adapter for listview in dialog

Question

I want to display a custom dialog that have a listview inside it. First take a look on my code below.

Dialog:

protected void onPostExecute(String file_ur         


        

Answer 1

Change this:

ListviewContactAdapter adapter = new ListviewContactAdapter(getActivity(), listContact);

to this:

ListviewContactAdapter adapter = new ListviewContactAdapter(YourCLassName.this, listContact);

OR, may be you didn't initialize listContact