listview - How to set default fragment in android? -


i have tried several ways set default fragment 1st list item when app open's first time , last opened fragment when app not opened first time. both scenarios not working. please help.

  mdrawerlist.setonitemclicklistener(new adapterview.onitemclicklistener() {          @override         public void onitemclick(adapterview<?> parent, view view,                                 int stupid, long id) {             // getting values selected listitem             name = ((textview) view.findviewbyid(r.id.name))                     .gettext().tostring();             strpath = ((textview) view.findviewbyid(r.id.email))                     .gettext().tostring();             string description = ((textview) view.findviewbyid(r.id.mobile))                     .gettext().tostring();             source_id = integer.parseint(description);             // starting single contact activity             bundle data = new bundle();             data.putstring(tag_name,name);             data.putstring(tag_sources, strpath);             fragment fragment = new singlecontactactivity();             fragment.setarguments(data);             fragmentmanager fragmentmanager = getfragmentmanager();             fragmentmanager.begintransaction()                     .replace(r.id.frame_container, fragment).commit();             mdrawerlayout.closedrawer(mdrawerlist);         }     }); new getcontacts().execute();

fmi, didnt use switch case in program. have tried 

mdrawerlist.setselection(0);

here array list adapter 

 listadapter adapter = new simpleadapter(                 mainactivity.this, navdraweritems,                 r.layout.list_item, new string[] { tag_name, tag_sources,                 tag_id }, new int[] { r.id.name,                 r.id.email, r.id.mobile });

navdraweritem , item in navdrawer retrieve mysql

 try {                 jsonobject jsonobj = new jsonobject(jsonstr);                  // getting json array node                 contacts = jsonobj.getjsonarray(tag_iptv);                  // looping through contacts                 (int = 0; < contacts.length(); i++) {                     jsonobject c = contacts.getjsonobject(i);                      string id = c.getstring(tag_id);                     string name = c.getstring(tag_name);                     string email = c.getstring(tag_sources);                     string address = c.getstring(tag_package);                        // tmp hashmap single contact                     hashmap<string, string> contact = new hashmap<string, string>();                      // adding each child node hashmap key => value                     contact.put(tag_id, id);                     contact.put(tag_name, name);                     contact.put(tag_sources, email);                     contact.put(tag_package, address);                       // adding contact contact list                     navdraweritems.add(contact);                  }             } catch (jsonexception e) {                 e.printstacktrace();


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