service - Binder mechanisam to update UI in android -

in project using binder mechanism communicate remote service. remote service class call jni function , updates ui every 10 seconds. jni function has below code

static int n = 100;   return ++n; 

this jni function calling in service class , updating ui below

   public class myservice extends service{         private static final string tag = "myservice";            private final handler servicehandler = new handler();          @override         public void oncreate() {             // todo auto-generated method stub             super.oncreate();                system.out.println("inside service oncreate");             log.d(tag, "entered onstart");             servicehandler.removecallbacks(sendupdatestoui);             servicehandler.postdelayed(sendupdatestoui, 1000); // 1 second               }  1.      private imyservice.stub biostub = new imyservice.stub() { 2.           3.          @override 4.          public int intfromjni() throws remoteexception { 5.              // todo auto-generated method stub     6.              int libdata = abcd.intfromjni(); 7.              system.out.println("inside ****** stub"+libdata); 8.              return libdata;                      }                };                 @override         public ibinder onbind(intent arg0) {                      // todo auto-generated method stub             system.out.println("inside binder ");                    return biostub;          }             private runnable sendupdatestoui = new runnable() {             public void run() {                  log.d(tag, "entered runnable");                       try {                         biostub.intfromjni();                         servicehandler.postdelayed(this, 10000);                      } catch (remoteexception e) {                         // todo auto-generated catch block                         e.printstacktrace();                     }                     }         };         }  service class calling in activty         @override             protected void onresume() {                 // todo auto-generated method stub                 super.onresume();                  intent serviceintent=new intent();                 serviceintent.setclass(context, myservice.class);                 boolean ok=bindservice(serviceintent, mserviceconnection , context.bind_auto_create);                 log.v("ok", string.valueof(ok));             }              private serviceconnection mserviceconnection=new serviceconnection(){                  @override                 public void onserviceconnected(componentname arg0, ibinder service) {                     // todo auto-generated method stub                        system.out.println("inside serviceconnection");                         myservice = imyservice.stub.asinterface(service);                      try {                           log.d("client", "entered mserviceconnection");              8.                       int jnivalue = myservice.intfromjni();                       9.                       system.out.println("value if jni==>"+jnivalue);              10.                                           } catch (remoteexception e) {                         // todo auto-generated catch block                         e.printstacktrace();                     }                  }                  @override                 public void onservicedisconnected(componentname arg0) {                     // todo auto-generated method stub                  }              }; 

here problem is, service class not updating ui every 10 seconds , value not incremeting in ui value incrementing every 10 seconds in service class i.e print statement below updating every 10 seconds in line number 7 in above code(service).

system.out.println("inside ****** stub"+libdata); 

but want update in ui also. i.e statement line num 10.

system.out.println("value if jni==>"+jnivalue);   i`t not happening in code . how solve 1 .` 

you missing way service tell activity new events. call activity service, intfromjni, one-off function call happens once - has no ongoing responsibility telling ui changes in future.

you should add listener class. example, add imyservicelistener.aidl this:

package com.something;  interface imyservicelistener {     void valueupdated(int newvalue); } 

and in imyservice.aidl add this:

import com.something.imyservicelistener;  void addlistener(in imyservicelistener newlistener); 

then, within imyservice.stub class need implement addlistener - should add resulting object array of listeners, , call valueupdated on each listener, each time value changes.

within activity, should call myservice.addlistener , pass in object receives notification of changes. can display on ui within activity.