android - SetEmptyText() dosen't show up when ListFragment is Empty -

i'm working listfragments .. want use setemptytext() when list empty doesn't show keep displaying progress keeps displaying progress bar don't know layout contains list , here's code

@override public void onactivitycreated(bundle savedinstancestate) {     // todo auto-generated method stub     super.onactivitycreated(savedinstancestate);      new getdata().execute(); }  private class getdata extends asynctask<void, void, arraylist<object>> {      @override     protected arraylist<object> doinbackground(void... params) {         // todo auto-generated method stub         try {             artists = new arraylist<object>();             artists = loadartists("taqwa.xml");             return loadxml("taqwa.xml");         } catch (xmlpullparserexception e) {             e.printstacktrace();              utils.log("xml exception", "true");             return null;         } catch (ioexception e) {             e.printstacktrace();              utils.log("ioexception", "true");              return null;         }     }      @override     protected void onpostexecute(arraylist<object> result) {         // todo auto-generated method stub         super.onpostexecute(result);          if (result != null) {             listadapter ladapter = new listadapter(getactivity(),                     r.layout.list_row, null, artists, 3);             setlistadapter(ladapter);         } else {             setemptytext("not found wallahi!");         }      }  } 

as can see don't use layout contains @id/android:list add @id/android:empty .. send the list item baseadapter

looks don't have adapter list view, setemptytext() doesn't work.