app crashes on second orientation?

view full story

http://stackoverflow.com – i am using fragments and below is my code my app crashes when try to change the orientation more than once i am unable to understand public void Reservation_Dashboardinfo_execute() { String url_main = getActivity().getIntent().getStringExtra( "Detail_Bundle"); url = url_main + "&action=getDashboardInfoDay"; flag = 1; updateList clist = new updateList(); clist.execute(new String[] { url }); } @Override public void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); // setRetainInstance(t (HowTos)