android - How to: Create an onclick listener for ListView -

i've used listview show data wamp server using mysql, using json parsing , following code....

public class jsontask extends asynctask<string, string, list<pumpmodel>> {      @override     protected list<pumpmodel> doinbackground(string... params) {         httpurlconnection connection = null;         bufferedreader reader = null;         try {             url url = new url(params[0]);             connection = (httpurlconnection) url.openconnection();             connection.connect();              inputstream stream = connection.getinputstream();              reader = new bufferedreader(new inputstreamreader(stream));             stringbuffer buffer = new stringbuffer();             string line = "";             while ((line = reader.readline()) != null) {                 buffer.append(line);             }              string finaljson = buffer.tostring();             jsonobject parentobject = new jsonobject(finaljson);             jsonarray parentarray = parentobject.getjsonarray("server_response");             list<pumpmodel> pumpmodellist = new arraylist<>();              (int = 0; < parentarray.length(); i++) {                 jsonobject finalobject = parentarray.getjsonobject(i);                 pumpmodel pumpmodel = new pumpmodel();                 pumpmodel.setpump(finalobject.getstring("pump"));                 pumpmodel.setavailable(finalobject.getstring("available"));                 pumpmodellist.add(pumpmodel);             }             return pumpmodellist;           } catch (malformedurlexception e) {             e.printstacktrace();         } catch (ioexception e) {             e.printstacktrace();         } catch (jsonexception e) {             e.printstacktrace();         } {             if (connection != null) {                 connection.disconnect();             }             try {                 if (reader != null) {                     reader.close();                 }             } catch (ioexception e) {                 e.printstacktrace();             }         }         return null;     }      @override     protected void onpostexecute(list<pumpmodel> result) {         super.onpostexecute(result);         //todo need set data list         pumpadapter adapter = new pumpadapter(getapplicationcontext(), r.layout.row, result);         lvpump.setadapter(adapter);     }  }  public class pumpadapter extends arrayadapter {     private list<pumpmodel> pumpmodellist;     private int resource;     private layoutinflater inflater;      public pumpadapter(context context, int resource, list<pumpmodel> objects) {         super(context, resource, objects);         pumpmodellist = objects;         this.resource = resource;         inflater = (layoutinflater) getsystemservice(layout_inflater_service);     }      @override     public view getview(int position, view convertview, viewgroup parent) {         if (convertview == null) {             convertview = inflater.inflate(resource, null);         }         imageview ivicon;         textview tvpump;         ivicon = (imageview) convertview.findviewbyid(r.id.ivicon);         tvpump = (textview) convertview.findviewbyid(r.id.tvpump);         // later, when want display image         imageloader.getinstance().displayimage(pumpmodellist.get(position).getavailable(), ivicon); // default options used         tvpump.settext(pumpmodellist.get(position).getpump());         return convertview;     } } 

now want create onclick listener list view, can used open activity, , show description of pumps in textview.

in activity, defined listview

you can write

listview.setonitemclicklistener(new onitemclicklistener(){   @override public void onitemclick(adapterview<?>adapter,view v, int position){  itemclicked item = adapter.getitematposition(position);  intent intent = new intent(activity.this,destinationactivity.class); //based on item add info intent startactivity(intent);  }   });  public itemclicked getitem(int position){  return items.get(position); }