how to use another xml in same Activity in android -

in project want display data on listview on xml of simpleadapter. show right answer if listview in xml of activity refered in setcontentview. show code.

 public class mainactivity extends actionbaractivity {     string name="name";    string fathername = "fname";    listview lst;    arraylist<hashmap<string, string>> arylist ;   @override   protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);     arylist = new arraylist<hashmap<string,string>>();     lst =(listview) findviewbyid(r.id.lst);     hashmap<string,string> hashmap = new hashmap<string, string>();     hashmap.put(name,"aasim");     hashmap.put(fathername,"pervaiz");     arylist.add(hashmap);      simpleadapter sadt = new simpleadapter(mainactivity.this, arylist, r.layout.rss_item_list_row,     new string[]{name,fathername}, new int[]{r.id.title, r.id.pub_date});     lst.setadapter(sadt);     } } 

it show right answer because listview present in xml setcontentview (link) how display on listview if xml not linked in setcontentview.