android - Adapter of ListActivity -

i have problem listactivity, hope can me. have created adapter:

public class mylistadapter extends baseadapter {  private arraylist<string> lista= new arraylist<string>(); private layoutinflater myinflater;  public mylistadapter(context context){     myinflater= (layoutinflater)context.getsystemservice(context.layout_inflater_service);  }  public void additem(final string item){     lista.add(item);     notifydatasetchanged(); }  public int getcount() {     return lista.size(); }  public object getitem(int position) {     return lista.get(position); }  public long getitemid(int position) {     return position; }  public view getview(int position, view convertview, viewgroup parent) {     viewholder holder= null;     if (convertview == null){         convertview= myinflater.inflate(r.layout.index, null);         holder= new viewholder();         holder.textview= (textview)convertview.findviewbyid(r.id.empty);         holder.checkbox= (checkbox) convertview.findviewbyid(r.id.check);         convertview.settag(holder);     }else{         holder=(viewholder)convertview.gettag();     }     holder.textview.settext(lista.get(position));     holder.textview.setonclicklistener(new onclicklistener() {          public void onclick(view view) {             intent myintent= new intent (view.getcontext(),chronometer.class);             myintent.putextra(name, value)          }     });     return convertview; } 

}

but have problem onclick in element of list. have 2 problem - when onclick want pass object... here don't have object textview , checkbox - , second when put startactivity isn't recognizer

i call adapter this:

    public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         [...]         mylistadapter myadapter= new mylistadapter(getbasecontext());            (meansurement elem : procesos) {               myadapter.additem(elem.getname());            }         }         setlistadapter(myadapter);    } 

set onitemclicklistener on list, instead of setting onclick on individual textviews:

lista.setonitemclicklistener(new onitemclicklistener() {       @override       public void onitemclick(adapterview<?> list, view view, int position, long id) {         object item = list.getitematposition(position);         intent = new intent(youractivity.this, otheractivity.class);         i.putextra(applicationconstants.extra_id, item.id);         startactivityforresult(i, intent_edit_account);       }     });