Localhost data doesnot run on genymotion

I want to run my .Net Web Api simple program on Android App. But it does not run I don't know what is going wrong. the following is the Visual Studio code:

namespace MyFirstWebApi.Controllers
   {
     public class ValuesController : ApiController
      {
       // GET api/values
      public IEnumerable<string> Get()
       {
      return new string[] { "value1", "value2" };
       }

        // GET api/values/5
       public string Get(int id)
       {
      return "value";
        }

        // POST api/values
       public void Post([FromBody]string value)
      {
       }

       // PUT api/values/5
        public void Put(int id, [FromBody]string value)
       {
        }

        // DELETE api/values/5
        public void Delete(int id)
       {
       }
      }
    }

I want to run my .Net Web Api simple program on Android App. But it does not run I don't know what is going wrong. the following is the Visual Studio code:

               namespace MyFirstWebApi.Controllers
     {
       public class ValuesController : ApiController
        {
         // GET api/values
        public IEnumerable<string> Get()
         {
        return new string[] { "value1", "value2" };
         }

          // GET api/values/5
         public string Get(int id)
         {
        return "value";
          }

          // POST api/values
         public void Post([FromBody]string value)
        {
         }

         // PUT api/values/5
          public void Put(int id, [FromBody]string value)
         {
          }

          // DELETE api/values/5
          public void Delete(int id)
         {
         }
        }
      }
And this is the Android stude code:

             srvr.setOnClickListener(new View.OnClickListener() {
                @Override
               public void onClick(View view) {
                  String url="http://192.168.56.1:8240/api/values";
            final RequestQueue requestQueue = 
               Volley.newRequestQueue(MainActivity.this);
            StringRequest stringRequest = new 
                  StringRequest(Request.Method.POST, url,
                    new Response.Listener<String>() {

                        @Override
                        public void onResponse(String response) {
                            srveces.setText(response);
                            requestQueue.stop();

                        }
                    }, new Response.ErrorListener() {

                @Override
                public void onErrorResponse(VolleyError error) {
                    srveces.setText("error");
                    error.printStackTrace();
                    requestQueue.stop();
                }

            });
            requestQueue.add(stringRequest);




             }

          });
I used ip but did'nt work.I used genymotion ip which 10.0.3.15 it also did'nt work. I used http://localhost:8240/api/values it also not work. It run on computer Browser correctly. But I want to show this simple text on my app textview