java - Android: Make list navigation callback fire on selection of the same list item -

i using list menu in action bar code follows:

context context = getsupportactionbar().getthemedcontext();         arrayadapter<charsequence> list = arrayadapter.createfromresource(context, r.array.locations, r.layout.sherlock_spinner_item);         list.setdropdownviewresource(r.layout.sherlock_spinner_dropdown_item);      getsupportactionbar().setnavigationmode(actionbar.navigation_mode_list);     getsupportactionbar().setlistnavigationcallbacks(list, this); }  @override public boolean onnavigationitemselected(int itemposition, long itemid) {  // when menu item selected , different selected menu item } 

right callback fired if menu item selected different selected item. how can make fire if newly selected menu item same?