Android Service Notification back to APP

Service:private Notificationmanager Manager;manager = (notificationmanager) getsystemservice (Context.NOTIFICATION_    SERVICE); private void Shownotification (String beaconid) {Taskstackbuilder Stackbuilder = taskstackbuilder.create (getApplica        Tioncontext ());        Adds the back Stack stackbuilder.addparentstack (mainactivity.class); Adds the Intent to the top of the stack Intent resultintent = new Intent (Getapplicationcontext (), mainactivity.c        LASS);        Bundle bundle = new bundle ();        Bundle.putstring ("Bid", Beaconid);        Resultintent.putextras (bundle);        Stackbuilder.addnextintent (resultintent); Gets a pendingintent containing the entire back stack pendingintent resultpendingintent = Stackbuilder.getpendin        Gintent (0, pendingintent.flag_update_current); Notification Notification = new Notification.builder (Getapplicationcontext ()). Setlargeicon (Bitmapfactory.d Ecoderesource (getresources(), R.drawable.ic_launcher)). Setsmallicon (R.drawable.ic_launcher). Setticker ("Buzz Exhibiti On "). Setcontentinfo (" Go "). Setcontenttitle (" exhibit Information "). Setcontenttext (String.fo Rmat ("You are viewing the exhibits no.%s, please click for details", Beaconid)). Setcontentintent (resultpendingintent). Setautocan        Cel (True). SetDefaults (Notification.default_all). build ();    Manager.notify (0, notification);        }mainactivity:bundle Bundle = This.getintent (). Getextras ();            if (bundle! = null) {if (Bundle.containskey ("bid")) {ShowImage (bundle.getstring ("bid")); }        }

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Android Service Notification back to APP