android - ListView checkbox issue after check -

my issue when check checkbox turns checked duplicates checked state next listview item isn't on visible list (e.g. when can see item on positions 0-5/6 on 1 screen element on position 7-8)...

this onclick method:

viewholder.messageselectbox.setonclicklistener(new view.onclicklistener() {             @override             public void onclick(view v) {                 if (viewholder.messageselectbox.ischecked()) {                     log.i("itemid", string.valueof(getitemid(position)));                     log.i("position", string.valueof(position));                     mlistofitemstodelete.add(position);                     collections.sort(mlistofitemstodelete);                     collections.reverse(mlistofitemstodelete);                 } else {                     (int = 0; < mlistofitemstodelete.size(); i++) {                         int pos = mlistofitemstodelete.get(i);                         if (pos == position) {                             mlistofitemstodelete.remove(i);                         }                     }                 }             }         }); 

setonclicklistener in getview() in listview adapter...

getview() method:

final viewholder viewholder;          if (convertview == null) {             layoutinflater inflater = (layoutinflater) context                     .getsystemservice(context.layout_inflater_service);              convertview = inflater.inflate(r.layout.messages_list_view_single, parent, false);         }          viewholder = new viewholder(convertview);          viewholder.messageselectbox = (checkbox) convertview.findviewbyid(r.id.messageselectbox); 

so guys, have got idea wrong?

in getview() have load checked state following before setonclicklistener.

viewholder.messageselectbox.setchecked(mlistofitemstodelete.contains(position)) 

so checked state maintained in mlistofitemstodelete , using state loaded checked state checkbox.