java - How to add user to SignalR Group in Android -


i wanna add user signalr group says failed. android code add user in group below

hubconnection connection = new hubconnection("http://www.planetskool.in/");     hubproxy proxy = connection.createhubproxy("chathub");       try {         //log.d(tag, "connection.start()...");         signalrfuture<void> awaitconnection = connection.start();         // log.d(tag, "started");         awaitconnection.get();         // log.d(tag, "got");     } catch (interruptedexception e) {         /// log.e(tag,"interruptedexception");         e.printstacktrace();     } catch (executionexception e) {         //log.e(tag, "executionexception");         e.printstacktrace();     }      signalrfuture<void> isgroupcreated2 =  proxy.invoke("joingroup", loginuserinfoid);     log.d("isgroupcreated", "isgroupcreated2 = " + proxy.invoke("joingroup", loginuserinfoid).isdone());      proxy.on("broadcastmessage",             new subscriptionhandler1<string>() {                 @override                 public void run(final string status) {                     //getapplicationcontext().runonuithread(new runnable() {                     //public void run() {                     log.d("signalrresult=", status);                     if(status.touppercase().equals("false".touppercase())) {                         new syncmessagefromserver().execute();                     }                     else {                         new syncgroupmessagefromserver().execute();                     }                     // }                     //});                 }              }             , string.class);

and code in chathub in mvc web application is

public task joingroup(string groupname)     {         return groups.add(context.connectionid, groupname);     }  public void sendall(string ruid, string message)         {             clients.group(ruid).broadcastmessage(message);         }

how can make work send notification particular user


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