listview - Set on click listener to a button in a list view Android -

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i'm creating item order list restaurrant. goal set onclicklistener each button(+/-) in each row in list can count how many items ordered. can please me code? have managed set listener not count items when clicking among rows.

public class mainactivity extends listactivity {      private string[] item_names = {"mozza cheese", "chicken rings", "onion rings", "calamari rings"};     private int item_counter = 1;      protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         this.requestwindowfeature(window.feature_no_title);         setcontentview(r.layout.view_order_list);          listadapter();      }      private void listadapter(){         setlistadapter(new myadapter(this,                 android.r.layout.simple_list_item_2, r.id.items_name_order, item_names));      }      private class myadapter extends arrayadapter<string> {          public myadapter(context context, int resource, int textviewresourceid, string[] strings) {             super(context, resource, textviewresourceid, strings);          }         @suppresslint("viewholder")         public view getview(final int position, view convertview, viewgroup parent) {               layoutinflater inflater = (layoutinflater) getsystemservice(context.layout_inflater_service);             convertview = inflater.inflate(r.layout.view_order, parent, false);              textview item_name = (textview) convertview.findviewbyid(r.id.items_name_order);             final textview item_count = (textview) convertview.findviewbyid(r.id.count_item_order);              button plus = (button) convertview.findviewbyid(r.id.button_plus_order);             button minus = (button) convertview.findviewbyid(r.id.button_minus_order);              item_name.settext(item_names[position]);              plus.setonclicklistener(new onclicklistener() {                  @override                 public void onclick(view v) {                     item_counter++;                     item_count.settext(integer.tostring(item_counter));                  }             });               return convertview;         }     } }

note new int array item_counter, rest in comment question

public class mainactivity extends listactivity {      private string[] item_names = {"mozza cheese", "chicken rings", "onion rings", "calamari rings"};     private int[] item_counter = {0, 0, 0, 0};      protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         this.requestwindowfeature(window.feature_no_title);         setcontentview(r.layout.view_order_list);          listadapter();      }      private void listadapter(){         setlistadapter(new myadapter(this,                 android.r.layout.simple_list_item_2, r.id.items_name_order, item_names));      }      private class myadapter extends arrayadapter<string> {          public myadapter(context context, int resource, int textviewresourceid, string[] strings) {             super(context, resource, textviewresourceid, strings);          }         @suppresslint("viewholder")         public view getview(final int position, view convertview, viewgroup parent) {               layoutinflater inflater = (layoutinflater) getsystemservice(context.layout_inflater_service);             convertview = inflater.inflate(r.layout.view_order, parent, false);              textview item_name = (textview) convertview.findviewbyid(r.id.items_name_order);             final textview item_count = (textview) convertview.findviewbyid(r.id.count_item_order);              button plus = (button) convertview.findviewbyid(r.id.button_plus_order);             button minus = (button) convertview.findviewbyid(r.id.button_minus_order);              item_name.settext(item_names[position]);             item_count.settext(item_counter[position];             plus.setonclicklistener(new onclicklistener() {                  @override                 public void onclick(view v) {                     item_counter[position]++;                     notifydatasetchanged();                  }             });               return convertview;         }     } }

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