android - SeekBar in ListView Item is reset -

in application have listview custom item view. each item has own seekbar holds age different persons displayed in listview. problem can scroll seekbar each person if item scrolled out , came in next time seekbar reseted 0. customadapter looks this:

public view getview(int position, view convertview, viewgroup parent)  {     view row = convertview;     peopleholder holder = null;      if(row == null)     {         layoutinflater inflater = layoutinflater.from(context);         row = inflater.inflate(layoutresourceid, parent, false);          holder = new peopleholder();          final textview tvage = (textview) row.findviewbyid(r.id.age);         tvnote.settag(position);          holder.age = (seekbar) row.findviewbyid(r.id.agekbar);          holder.age.setonseekbarchangelistener(new onseekbarchangelistener()         {             @override             public void onstoptrackingtouch(seekbar seekbar){   }              @override             public void onstarttrackingtouch(seekbar seekbar){   }              @override             public void onprogresschanged(seekbar seekbar, int progress, boolean fromuser)             {                     tvage.settext("" + progress);             }         });           holder.name  = (textview) row.findviewbyid(r.id.name);         row.settag(holder);     }     else     {         holder = (peopleholder) row.gettag();     }      people p = data.get(position);      holder.name.settext(p.getfullname());     holder.age.setprogress(p.getage());      return row; }  private static class peopleholder {     textview name;     seekbar age; } 

be sure change value of person's age when progress changes:

    // adding final int can accessed inside listener     final int personposition = position;     holder.age.setonseekbarchangelistener(new onseekbarchangelistener()     {         ...          @override         public void onprogresschanged(seekbar seekbar, int progress, boolean fromuser)         {                 tvage.settext("" + progress);                 // change age of person in data                 data.get(personposition).setage(progress);         }     });