android - Whats the best way to do a loop for listview selections -

i have listview populated list of checkboxes..i want add button when press it sth each item user selected in listview..whats best way find check box checked?i know can use setoncheckedchangelistener how call if each checkbox in list?and if create array string , each time checkbox checked addes text array list can loop each selected item? here code pupulate list view

@override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_database_list);     file path=new file(clubcp.sdcardpath);     list<string> file_lists =   main.directorypath(path);     listview database_list=(listview)findviewbyid(r.id.database_list);     arrayadapter<string> adapter = new arrayadapter<string>(this,             r.layout.database_list_item,r.id.chk_database_list_item,file_lists);     arrayadapter<string> adapter1 = new interactivearrayadapter(this,file_lists);     database_list.setadapter(adapter1);  } 

i searched , think must use arrayadapter ..i writing class..this class package co.tosca.persianpoem;

import java.util.list;  import android.app.activity; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.arrayadapter; import android.widget.checkbox; import android.widget.compoundbutton;  public class interactivearrayadapter extends arrayadapter<string> {        private final list<string> list;       private final activity context;        public interactivearrayadapter(activity context, list<string> list) {         super(context, r.layout.database_list_item, list);         this.context = context;         this.list = list;       }        static class viewholder {         protected checkbox checkbox;       }        @override       public view getview(int position, view convertview, viewgroup parent) {         view view = null;         if (convertview == null) {           layoutinflater inflator = context.getlayoutinflater();           view = inflator.inflate(r.layout.database_list_item, null);           final viewholder viewholder = new viewholder();           viewholder.checkbox = (checkbox) view.findviewbyid(r.id.chk_database_list_item);           viewholder.checkbox               .setoncheckedchangelistener(new compoundbutton.oncheckedchangelistener() {                  @override                 public void oncheckedchanged(compoundbutton buttonview,                     boolean ischecked) {                   ///do sth                  }               });           view.settag(viewholder);           viewholder.checkbox.settag(list.get(position));         } else {           view = convertview;           ((viewholder) view.gettag()).checkbox.settag(list.get(position));         }           return view;       }     }  

thanks help

you need subclass arrayadapter , override getview method can call setonclicklistener on per-view basis. see arrayadapter docs: here

public view getview (int position, view convertview, viewgroup parent) {     view itemview = convertview;     if (itemview == null) {         layoutinflater li = layoutinflater.from(getcontext());         itemview = li.inflate(r.layout.database_list_item);     }      checkbox cb = (checkbox)itemview.findviewbyid(r.id.checkbox); // whatever id of checkbox in layout     cb.setonclicklistener(new view.onclicklistener() {         @override         public void onclick(view v) {             checkbox mycb = (checkbox)v;             if (mycb.ischecked()) {                 // add position array representing selected items             } else {                 // remove position array             }         }     });      return itemview; }