How to reload a spinner in Android? -

can tell me code reload spinner?

i have created small app can add items , delete unwanted items. items added showed in spinner. once select item spinner , delete clicking delete button, item getting deleted database & toast displayed "item deleted". still showing in spinner until logout , logs in once again. here, think need reload spinner once again on delete button click. can me out that?

public class deletechildactivity extends activity {     textview name;     button delete;     spinner spinner2;      private string url = "/parentprofileservlet";     private string url1 = "/childprofileservlet";     private string url2 = "/deletechildservlet";     arraylist<namevaluepair> postparameter;      public static int selectchildid;     public static string imei;      parentdetailsmod parentmodel;     private arraylist<childdetails> childarray = null;      public void oncreate(bundle savedinstancestate) {          super.oncreate(savedinstancestate);         setcontentview(r.layout.delete_child);          delete = (button) findviewbyid(r.id.b_delchild);          spinner2 = (spinner) findviewbyid(r.id.childspinner);           childarray = new selectparser().parseselectxml(response);         arraylist<string> stringarray = new arraylist<string>();         (childdetails childmodel : childarray) {             string str;             str = childmodel.getname();             stringarray.add(str);         }         // spinner = (spinner) findviewbyid(r.id.spinner11);         arrayadapter<string> adapter = new arrayadapter<string>(                 getapplicationcontext(), android.r.layout.simple_list_item_1,                 stringarray);         adapter.setdropdownviewresource(android.r.layout.simple_spinner_dropdown_item);         spinner2.setadapter(adapter);         spinner2.setprompt(getstring(r.string.selectlabel));         spinner2.setonitemselectedlistener(new adapterview.onitemselectedlistener() {              @override             public void onitemselected(adapterview<?> arg0, view arg1,                     int position, long arg3) {                 imei = childarray.get(position).getimei_num();                 selectchildid = childarray.get(position).getchild_id();              }              @override             public void onnothingselected(adapterview<?> arg0) {                 // todo auto-generated method stub              }         });           delete.setonclicklistener(new view.onclicklistener() {             @override             public void onclick(view v) {                 // spinner.performclick();                 // string id = spinner2.getselecteditem().tostring();                 // selectchildid = id.substring(0, id.indexof("--"));                 postparameter = new arraylist<namevaluepair>();                  string parent_id = loginpageactivity.id;                 postparameter                         .add(new basicnamevaluepair("parent_id", parent_id));                 postparameter.add(new basicnamevaluepair("child_id",                         selectchildid + ""));                 string response = null;                  try {                     response = customhttpclient.executehttppost(url2,                             postparameter);                     system.out.println("response:" + response);                      if (response.trim().compareto("success") == 0) {                         toast.maketext(getapplicationcontext(),                                 "child deleted", toast.length_long).show();                      } else {                         toast.maketext(getapplicationcontext(),                                 "failed delete", toast.length_long).show();                     }                 } catch (exception e) {                     // todo auto-generated catch block                     e.printstacktrace();                 }             }         }); 

you can use notifydatasetchanged(); method reload adapter or display changed data.