android - Getting empty array [] response with volley Json -

i getting data api web server call. if use basic web call (with httpget) able data expecting. using volley json getting empty array [] response.

i following jsonarray response.

[   {   "nickname":"panikos",   "username":"panikos@gmail.com",   "user_type":"leader",   "latest_steps":"2"   }, {   "nickname":"nikki",   "username":"nikki@gmail.com",   "user_type":"master",   "latest_steps":"3"   }, ........... ........... ........... ........... ] 

here code data server using volley

jsonarrayrequest arrreq = new jsonarrayrequest(lurl, new          response.listener<jsonarray>()          {     public void onresponse(jsonarray arg0)     {         log.d("debug","json array"+arg0.tostring());          mlistener.notifyresponse(arg0.tostring());     };         }, new response.errorlistener()          {             @override             public void onerrorresponse(volleyerror arg0) {                  log.d("debug", "error response"+arg0.tostring());                   if (arg0.networkresponse == null) {                     if (arg0.getclass().equals(timeouterror.class)) {                         // show timeout error message                            mlistener.notifyconnection("oops.timeout! please check connection.");                     }                 }else{                     mlistener.notifyerror(arg0);                      }             }          }) {     public map<string, string> getheaders() throws authfailureerror {          hashmap<string, string> params = new hashmap<string, string>();         string creds = string.format("%s:%s",xippxx,xxcvxx);         string auth = "basic " + base64.encodetostring(creds.getbytes(), base64.no_wrap);         params.put("authorization", auth);         return params;     } };  appcontroller.getinstance().adtorequestqure(arrreq); 

by using code every time getting empty array [] in volley json response. tried same basic http call (by using asynctask) giving proper data expecting.

this basic code getting data normal web request call::

@override protected void doinbackground(string... params) {      try {          httpget request=new httpget(params[0]);         defaulthttpclient httpclient=new defaulthttpclient();          string creds = string.format("%s:%s","xippxx","xxcvxx");         string auth = "basic " + base64.encodetostring(creds.getbytes(), base64.no_wrap);          request.setheader("authorization", auth);         httpresponse response=httpclient.execute(request);           httpentity entity=response.getentity();         string jsondata = entityutils.tostring(entity);          log.d("debug", "json data in asynctask:: "+jsondata);          jsonarray ljsonarray=new jsonarray(jsondata);          log.d("debug", "json array data:: "+ljsonarray.tostring());       }            catch (exception e) {          e.printstacktrace();                 }      return null; }   

this code working perfectly.. glad know making mistake in volley json ? tried many scenario's (those can't shown here) stringrequest, , other things base64.default no luck.

sorry poor english , long question. 1 can point out me.. thank !!!

i had similar problem, root of issue you're trying perform params, it's different post, need modify request.

this general template might you, try request (with modifications param..):

edited:

       map<string, object> params = new hashmap<>() ;        string creds = string.format("%s:%s",xippxx,xxcvxx);        string auth = "basic " + base64.encodetostring(creds.getbytes(), base64.no_wrap);        params.put("authorization", auth);        string urlwithparams = creategetwithparams(originalurl, params);          decodedstringrequest request = new decodedstringrequest(request.method.get, urlwithparams,                  new response.listener<string>()                 {                     @override                     public void onresponse(string response)                     {                         log.d(tag + ": ", "volley response: " + response.tostring());                      }                 },                 new response.errorlistener()                 {                     @override                     public void onerrorresponse(volleyerror error)                     {                         if (null != error.networkresponse)                         {                             log.d(tag + ": ", "error response code: " + error.networkresponse.statuscode);                         }                     }                 });          requestqueue.add(request); 

and here check response here:

public class decodedstringrequest extends stringrequest {     private static final string tag = "decodedstringrequest";     private final response.listener<string> mlistener;      public decodedstringrequest(int method, string url, response.listener<string> listener, response.errorlistener errorlistener)     {         super(method,url, listener, errorlistener);         mlistener = listener;     }      @override     protected response<string> parsenetworkresponse(networkresponse response)     {         try         {             //add more of magic here if needed... maybe print data see             string responsebody = new string(response.data, "utf-8");             return (response.success(responsebody, getcacheentry()));         }         catch (unsupportedencodingexception e)         {             volleylog.e("unsupportedencodingexception");             log.d(tag +" networkresponse exception", e.getmessage() );             return (response.success("uploaded, problem url return", getcacheentry()));         }     }      @override     protected void deliverresponse(string response)     {         mlistener.onresponse(response);     } } 

oh and:

private string creategetwithparams(string url, map<string, object> params) {     stringbuilder builder = new stringbuilder();     (string key : params.keyset())     {         object value = params.get(key);         if (value != null)         {             try             {                 value = urlencoder.encode(string.valueof(value), http.utf_8);                 if (builder.length() > 0)                     builder.append("&");                 builder.append(key).append("=").append(value);             }             catch (unsupportedencodingexception e)             {                 log.d(tag + " creategetwithparams: ", e.getmessage());             }         }     }     return (url + "?" + builder.tostring()); } 

hope helps!