android - Volley Offline Working -

ways implement volley json response cache.i tried following way response volley.i response correctly.i dont know how store these json values volley cache

stringrequest strreq = new stringrequest(request.method.post, url,             new response.listener<string>() {                  @override                 public void onresponse(string response) {                     system.out.println("mainresp$$$"+response);                     log.d("volley request success", response.tostring());                     result=response;                     callback.onsuccess(result);                   }             }, new response.errorlistener() {          @override         public void onerrorresponse(volleyerror error) {             volleylog.d("volley request error",                     "error: " + error.getmessage());          }     }) {          @override         protected map<string, string> getparams() {               return params;         }      };      // adding request request queue     appcontroller.getinstance().addtorequestqueue(strreq, tag_string_req); 

together comments, have read answer @ following question:

android setup volley use cache

i have tested post request, following code:

        cacherequest cacherequest = new cacherequest(request.method.post, url, new response.listener<networkresponse>() {             @override             public void onresponse(networkresponse response) {                 try {                     final string jsonstring = new string(response.data,                             httpheaderparser.parsecharset(response.headers));                     // check if jsonobject or jsonarray                     object json = new jsontokener(jsonstring).nextvalue();                     jsonobject jsonobject = new jsonobject();                     if (json instanceof jsonobject) {                         jsonobject = (jsonobject) json;                     } else if (json instanceof jsonarray) {                         jsonobject.put("success", json);                     } else {                         string message = "{\"error\":\"unknown error\",\"code\":\"failed\"}";                         jsonobject = new jsonobject(message);                     }                     textview.settext(jsonobject.tostring(5));                                         } catch (unsupportedencodingexception | jsonexception e) {                     e.printstacktrace();                 }             }         }, new response.errorlistener() {             @override             public void onerrorresponse(volleyerror error) {                 // something...             }         }); 

my sample asp.net web api code following:

        // post api/<controller>         public ihttpactionresult post()         {             string jsonstring = "[" +                                      "{" +                                          "name: \"person 1\"," +                                          "age: 30," +                                          "type: \"post\"," +                                      "}," +                                      "{" +                                          "name: \"person 2\"," +                                          "age: 20," +                                          "type: \"post\"," +                                      "}," +                                      "{" +                                          "name: \"person 3\"," +                                          "age: 40," +                                          "type: \"post\"," +                                      "}" +                                 "]";                         jarray jsonobj = jarray.parse(jsonstring);             return ok(jsonobj);         } 

here result screenshot