c# - I've Got This Response From The GCM Server {"success":1} But the Notification not Come to the Device

Question

I am trying to Notify the Device by the Push Notification

I Received this Response From THE GCM Server

{"multicast_id":8594338261894783737,"success":1,"failure":0,"canonical_ids":0,"results":[{"message_id":"0:1355822022916886%8ae6056ef9fd7ecd"}]}

But Still Not get the Notification

With Knowledge That --> "success":1

But I Think there is something Wrong Here --> "canonical_ids":0

---

This Is My Code ...

 private string SendGCMNotification(string apiKey, string postData, string postDataContentType = "application/json")
 {
     ServicePointManager.ServerCertificateValidationCallback += new RemoteCertificateValidationCallback(ValidateServerCertificate);

     //
     //  MESSAGE CONTENT
     byte[] byteArray = Encoding.UTF8.GetBytes(postData);

     //
     //  CREATE REQUEST
     HttpWebRequest Request = (HttpWebRequest)WebRequest.Create("https://android.googleapis.com/gcm/send");
     Request.Method = "POST";
     Request.KeepAlive = false;
     Request.ContentType = postDataContentType;
     Request.Headers.Add(HttpRequestHeader.Authorization, string.Format("key={0}",apiKey));
     Request.ContentLength = byteArray.Length;

     Stream dataStream = Request.GetRequestStream();
     dataStream.Write(byteArray, 0, byteArray.Length);
     dataStream.Close();

     try
     {
         WebResponse Response = Request.GetResponse();
         HttpStatusCode ResponseCode = ((HttpWebResponse)Response).StatusCode;
         if (ResponseCode.Equals(HttpStatusCode.Unauthorized) || ResponseCode.Equals(HttpStatusCode.Forbidden))
         {
          Label1.Text = "Unauthorized - need new token";

         }
         else if (!ResponseCode.Equals(HttpStatusCode.OK))
         {
             Label1.Text = "Response from web service isn't OK";
         }

         StreamReader Reader = new StreamReader(Response.GetResponseStream());
         string responseLine = Reader.ReadToEnd();
         Reader.Close();

         return responseLine;
     }
     catch (Exception e)
     {
         return "error";
     }
    // return "error";
 }

and i call this method using

     string deviceId = "APA91bHomX3zb6Y87fb4GAjyj8zIaI-tt1n6ZFmgtmu16nmLW7ntwnOyv4BXMH7RzQWk3JrKdLjttJMxKzvpFd3Kmrid_RzsC3zR46GLJGiZKERXOSIR8fYReBEfz1f0G_FIm5bPttWUBDwz9jPuF2lS8RQh-0DKbw";
     string message = "some test message";
     string tickerText = "example test GCM";
     string contentTitle = "content title GCM";
     string postData =
     "{ "registration_ids": [ "" + deviceId + "" ], " +
       ""data": {"tickerText":"" + tickerText + "", " +
                  ""contentTitle":"" + contentTitle + "", " +
                  ""message": "" + message + ""}}";

     Label1.Text = SendGCMNotification("AIzaSyBEvtrtbbfy2-p2zS8Zi8DweZiRy8M-nZc", postData);

Thanks In Advance

Answer 1

Waitting for answers