java - Listview With Asynctask get no response from server -

i want send cus_id postparamname web server. according cus_id want fetch data server , listview.

i have no error in code...but code still not able fetch data server..

plz @ code...i have been working on code since last 2 days. not able find mistake

point1.java

            public class points1 extends listactivity implements fetchdatalistener { sessionmanager session; textview tvcuspoints1, tvcuspoints2, tvcusname; textview bus_name; textview cus_points; @override protected void oncreate(bundle savedinstancestate) {     // todo auto-generated method stub     super.oncreate(savedinstancestate);     setcontentview(r.layout.points);     initview();               }             private void initview() {     session = new sessionmanager(getapplicationcontext());     // user data session     hashmap<string, string> user = session.getuserdetails();     // id     string cus_id = user.get(sessionmanager.key_id);     arraylist<namevaluepair> postparamname = new arraylist<namevaluepair>();     postparamname.add(new basicnamevaluepair("cus_id", cus_id));      string url = "http://10.0.2.2/android_api_main/business_points.php";     fetchdatatask task = new fetchdatatask(this);     task.execute(url); }       @override public void onfetchcomplete(list<application> data) {     // dismiss progress dialog      // create new adapter     applicationadapter adapter = new applicationadapter(this, data);     // set adapter list     setlistadapter(adapter); }       @override public void onfetchfailure(string msg) {     // dismiss progress dialog  }         } 

application.java

      public class application         {     private string bus_name;    private string cus_points;  public string getbus_name() {     return bus_name; }  public void setbus_name(string bus_name) {     this.bus_name = bus_name; }  public string getcus_points() {     return cus_points; }  public void setcus_points(string cus_points) {     this.cus_points = cus_points; }     } 

applicationadapter.java

       public class applicationadapter extends arrayadapter<application> {     private list<application> items;   public applicationadapter(context context, list<application> items) {     super(context, r.layout.point_list_item, items);     this.items = items; }  @override public int getcount() {     return items.size(); }  @override public view getview(int position, view convertview, viewgroup parent) {     view v = convertview;     if (v == null) {         layoutinflater li = layoutinflater.from(getcontext());         v = li.inflate(r.layout.point_list_item, null);     }     application app = items.get(position);     if (app != null) {         textview titletext = (textview) v.findviewbyid(r.id.item_bname1);         textview dltext = (textview) v.findviewbyid(r.id.item_bpoint1);          if (titletext != null)             titletext.settext(app.getbus_name());         if (dltext != null)             dltext.settext(app.getcus_points());     }      return v; }        } 

fetchdatatask.java

      public class fetchdatatask extends asynctask<string, void, string> { private final fetchdatalistener listener; private string msg; string cus_id, responsestring, success, bus_name, cus_points; sessionmanager session;  public fetchdatatask(fetchdatalistener listener) {     this.listener = listener; }  @override protected string doinbackground(string... params) {     if (params == null)         return null;      // url params     string url = params[0];     try {          // create http connection         httpclient client = new defaulthttpclient();         httpget httpget = new httpget(url);         // connect         httpresponse response = client.execute(httpget);         // response         httpentity entity = response.getentity();         responsestring = entityutils.tostring(entity);         // response content , convert json string      } catch (ioexception e) {         msg = "no network connection";     }     return responsestring; }  @override protected void onpostexecute(string sjson) {     try {         jsonobject json = new jsonobject(responsestring);         jsonarray jarray = json.getjsonarray("customer");         list<application> apps = new arraylist<application>();         (int = 0; < jarray.length(); i++) {             jsonobject json_data = jarray.getjsonobject(i);             bus_name = json_data.getstring("bus_name");             cus_points = json_data.getstring("cus_points");             success = json_data.getstring("success");             application app = new application();             app.setbus_name(json.getstring("bus_name"));             app.setcus_points(json.getstring("cus_points"));             // add app apps             apps.add(app);         }         if (listener != null)             listener.onfetchcomplete(apps);     } catch (jsonexception e) {         msg = "invalid response";         if (listener != null)             listener.onfetchfailure(msg);         return;     } }               } 

fetchdatalistener.java

     public interface fetchdatalistener { public void onfetchcomplete(list<application> data);  public void onfetchfailure(string msg);      } 

your fetchdatatask constructor accepts fetchdatatasklistener parameter

public fetchdatatask(fetchdatalistener listener) {     this.listener = listener; } 

but have initialized using activity's context

fetchdatatask task = new fetchdatatask(this); 

could please check this.

you should set listener correctly, this

this.mlistener = (fetchdatalistener) activity