listview - How to add the text at the particular position in custom adapter in android -

i creating android app populates list of gps co-ordinates entered user using custom adapter

selection         lat        long         distance -------------------------------------------------   checkbox1    123.4546     456.48751      text   checkbox2    123.4546     456.48751      text   checkbox3    123.4546     456.48751      text   checkbox4    123.4546     456.48751      text 

if user selects check-box 1 have find distance check-box 1 lat long check-box 2,check-box 3,check-box-4 lat long .here need display result text in field of text respective position here getting result @ last position can tell me how achieve fyi:[![enter image description here][2]][2] sc explain in detail. if check 1 value updating result @ last value need update , display result whole data code

check_locations.setoncheckedchangelistener(new compoundbutton.oncheckedchangelistener() {         @override         public void oncheckedchanged(compoundbutton buttonview, boolean ischecked) {             if (ischecked) {                  latitude_string = location.getlatitude();                 longitude_string = location.getlongitude();                 baselat_double = double.parsedouble(latitude_string);                 baselong_double = double.parsedouble(longitude_string);                 location_a = new location("base position");                 location_a.setlatitude(double.parsedouble(latitude_string));                 location_a.setlongitude(double.parsedouble(longitude_string));                 location_b = new location("end position");                 (int = 0; < objects.size(); i++) {                     finallat_double = double.parsedouble(objects.get(i).getlatitude());                     finallong_double = double.parsedouble(objects.get(i).getlongitude());                     location_b.setlatitude(finallat_double);                     location_b.setlongitude(finallong_double);                     distance = location_a.distanceto(location_b);                     distance = distance * 1.609344;                     objects.get(i).setdistance(string.valueof(distance));                     }                 notifydatasetchanged();                 distance_text.settext(location.getdistance());              }         }     });       return locations_row; } 

modify getview() methods this

@override     public view getview(final int position, view convertview, final viewgroup parent) {      final view locations_row = layoutinflater.from(context).inflate(r.layout.layout_adapter_list_details, null);     final locations_modle location = (locations_modle) objects.get(position);     textview text_cust_name = (textview) locations_row.findviewbyid(r.id.txt_cust_name_heading);     textview latitude = (textview) locations_row.findviewbyid(r.id.txt_latitude);     latitude.settext(location.getlatitude());     textview longitude = (textview) locations_row.findviewbyid(r.id.txt_longitude);     textview distance_text = (textview) locations_row.findviewbyid(r.id.txt_distance);     if (stringutils.isempty(location.getdistance()))         distance_text.settext("distance");     longitude.settext(location.getlongitude());     text_cust_name.settext(location.getlocationname());     checkbox check_locations = (checkbox) locations_row.findviewbyid(r.id.check_locations);     check_locations.settag(position);      if (position == selectedpostion) {         check_locations.setchecked(true);     } else {         check_locations.setchecked(false);     }     check_locations.setoncheckedchangelistener(new compoundbutton.oncheckedchangelistener() {         @override         public void oncheckedchanged(compoundbutton buttonview, boolean ischecked) {             if (ischecked) {                  selectedpostion = (int) buttonview.gettag();                  latitude_string = objects.get(selectedpostion).getlatitude();                 longitude_string = objects.get(selectedpostion).getlongitude();                  baselat_double = double.parsedouble(latitude_string);                 baselong_double = double.parsedouble(longitude_string);                  location_a = new location("base position");                 location_a.setlatitude(double.parsedouble(latitude_string));                 location_a.setlongitude(double.parsedouble(longitude_string));                  location_b = new location("end position");                   (int = 0; < objects.size(); i++) {                     finallat_double = double.parsedouble(objects.get(i).getlatitude());                     finallong_double = double.parsedouble(objects.get(i).getlongitude());                     location_b.setlatitude(finallat_double);                     location_b.setlongitude(finallong_double);                     distance = location_a.distanceto(location_b);                     distance = distance * 1.609344;                     objects.get(i).setdistance(distance);                 }                 locations_adapter.this.notifydatasetchanged();             }         }     });      return locations_row; }