java - Android -How can I open different list for single list row -

i have xml (i don't know if it's perfect):

   <?xml version="1.0" encoding="utf-8"?> <lista>     <riga>         <id>1</id>         <title>fornace</title>         <thumb_url>http://i43.tinypic.com/29lzjpv.jpg</thumb_url>         <prova>         <title>prova1 - fornace</title>         </prova>     </riga>     <riga>         <id>2</id>         <title>basilica</title>         <thumb_url>http://i40.tinypic.com/qs8ihe.jpg</thumb_url>         <prova>         <title>prova2</title>         </prova>     </riga>      <riga>          <id>3</id>         <title>foro boario</title>         <prova>         <title>prova3</title>         </prova>     </riga> </lista> 

and want parse , open different lists single list row. how can do?

mainactivity:

   public class lista extends activity {         // static variables         static string convertstreamtostring(java.io.inputstream is) {             @suppresswarnings("resource")             java.util.scanner s = new        java.util.scanner(is).usedelimiter("\\a");              return s.hasnext() ? s.next() : "";         };     //  static final string url = "lista_principale.xml";         // xml node keys         static final string key_riga = "riga"; // parent node         static final string key_id = "id";         static final string key_title = "title";         static final string key_thumb_url = "thumb_url";         static final string key_prova = "prova";          listview list;         lazyadapter adapter;          @override         public void oncreate(bundle savedinstancestate) {             super.oncreate(savedinstancestate);             setcontentview(r.layout.activity_lista); 

arraylist> listaelem = new arraylist>();

            xmlparser parser = new xmlparser();             //string xml = parser.getxmlfromurl(url); // getting xml url              inputstream = getresources().openrawresource(r.raw.lista_principale);              string xml=convertstreamtostring(is);               document doc = parser.getdomelement(xml); // getting dom element              nodelist nl = doc.getelementsbytagname(key_riga);             // looping through song nodes <song>             (int = 0; < nl.getlength(); i++) {                 // creating new hashmap                 hashmap<string, string> map = new hashmap<string, string>();                 element e = (element) nl.item(i);                 // adding each child node hashmap key => value                 map.put(key_id, parser.getvalue(e, key_id));                 map.put(key_title, parser.getvalue(e, key_title));                 map.put(key_thumb_url, parser.getvalue(e, key_thumb_url));                 map.put(key_prova, parser.getvalue(e, key_prova));                   // adding hashlist arraylist                 listaelem.add(map);             }               list=(listview)findviewbyid(r.id.list);              // getting adapter passing xml data arraylist             adapter=new lazyadapter(this, listaelem);                     list.setadapter(adapter);              // click event single list row             list.setonitemclicklistener(new onitemclicklistener() {                 @override                 public void onitemclick(adapterview<?> parent, view view,                         int position, long id)  {                      intent = new intent(getapplicationcontext(), lista2.class);                      string posto_id = ((textview) view.findviewbyid(r.id.title)).gettext().tostring();                      toast.maketext(getapplicationcontext(), "album id: " + posto_id , toast.length_short).show();                      i.putextra("posto_id", posto_id);                      startactivity(i);                     }             });               }        } 

singlelistactivity

public class lista2 extends activity {       string posto_id = null;      lazyadapter adapter;     static string convertstreamtostring(java.io.inputstream is) {         @suppresswarnings("resource")         java.util.scanner s = new java.util.scanner(is).usedelimiter("\\a");         return s.hasnext() ? s.next() : "";     };      static final string key_title = "title";     static final string key_prova = "prova";        public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_lista2);          arraylist<hashmap<string, string>> listaelem = new arraylist<hashmap<string, string>>();          xmlparser parser = new xmlparser();         //string xml = parser.getxmlfromurl(url); // getting xml url          inputstream = getresources().openrawresource(r.raw.lista_principale);          string xml=convertstreamtostring(is);           intent = getintent();         int k=0;         k = i.getintextra("posto_id",k);         // i.getstringextra(posto_id);            document doc = parser.getdomelement(xml);                nodelist nl = doc.getelementsbytagname(key_prova);              (k=0; k< nl.getlength();k++){                hashmap<string, string> map2 = new hashmap<string, string>();              element f = (element) nl.item(k);             map2.put(key_title, parser.getvalue(f, key_title));              listaelem.add(map2);             }           // displaying values on screen         listview lblsong = (listview) findviewbyid(r.id.list2);          adapter=new lazyadapter(this, listaelem);            lblsong.setadapter(adapter);     } }