google cloud messaging - Android GCM example - how to implement in existing project? -

i've downloaded latest gcm example fromm google on github.

it works well, can't make work in own project. i've got donut turning , message "generating instanceid token..."

i didn't understand link class gcmsender in example.

here code

     public class mainactivity extends actionbaractivity {          private static final int play_services_resolution_request = 9000;         private static final string tag = "mainactivity";          private broadcastreceiver mregistrationbroadcastreceiver;         private progressbar mregistrationprogressbar;         private textview minformationtextview;          @override         protected void oncreate(bundle savedinstancestate) {             super.oncreate(savedinstancestate);              setcontentview(r.layout.activity_main);              // url             string url="http://www.monurl.org/";             webview mwview=(webview) this.findviewbyid(r.id.webview);             //autorise javascript             mwview.getsettings().setjavascriptenabled(true);             mwview.loadurl(url);              //partie notif              mregistrationprogressbar = (progressbar) findviewbyid(r.id.registrationprogressbar);             mregistrationbroadcastreceiver = new broadcastreceiver() {                 @override                 public void onreceive(context context, intent intent) {                     mregistrationprogressbar.setvisibility(progressbar.gone);                     sharedpreferences sharedpreferences =                             preferencemanager.getdefaultsharedpreferences(context);                     boolean senttoken = sharedpreferences                             .getboolean(quickstartpreferences.sent_token_to_server, false);                     if (senttoken) {                         minformationtextview.settext(getstring(r.string.gcm_send_message));                     } else {                         minformationtextview.settext(getstring(r.string.token_error_message));                     }                 }             };             minformationtextview = (textview) findviewbyid(r.id.informationtextview);               // check si google play services apk est sur le phone             if (checkplayservices()) {                 // start intentservice register application gcm.                 intent intent = new intent(this, mygcmregistrationintentservice.class);                 startservice(intent);             }          }          @override         public boolean oncreateoptionsmenu(menu menu) {             // inflate menu; adds items action bar if present.             getmenuinflater().inflate(r.menu.menu_main, menu);             return true;         }          @override         public boolean onoptionsitemselected(menuitem item) {             // handle action bar item clicks here. action bar             // automatically handle clicks on home/up button, long             // specify parent activity in androidmanifest.xml.             int id = item.getitemid();              //noinspection simplifiableifstatement             if (id == r.id.action_settings) {                 return true;             }              return super.onoptionsitemselected(item);         }            /**          * check device make sure has google play services apk. if          * doesn't, display dialog allows users download apk          * google play store or enable in device's system settings.          */         private boolean checkplayservices() {             int resultcode = googleplayservicesutil.isgoogleplayservicesavailable(this);             if (resultcode != connectionresult.success) {                 if (googleplayservicesutil.isuserrecoverableerror(resultcode)) {                     googleplayservicesutil.geterrordialog(resultcode, this,                             play_services_resolution_request).show();                 } else {                     log.i(tag, "ce peripherique n'est pas supporte.");                     finish();                 }                 return false;             }             return true;         }     } 

     public class mygcmlistenerservice extends gcmlistenerservice {          private static final string tag = "mygcmlistenerservice";         public mygcmlistenerservice() {         }           /**          * called when message received.          *          * @param senderid of sender.          * @param data data bundle containing message data key/value pairs.          *             set of keys use data.keyset().          */         // [start receive_message]         @override         public void onmessagereceived(string from, bundle data) {             string message = data.getstring("message");             log.d(tag, "from: " + from);             log.d(tag, "message: " + message);              /**              * production applications process message here.              * eg: - syncing server.              *     - store message in local database.              *     - update ui.              */              /**              * in cases may useful show notification indicating user              * message received.              */             sendnotification(message);         }         // [end receive_message]            /**          * create , show simple notification containing received gcm message.          *          * @param message gcm message received.          */         private void sendnotification(string message) {             intent intent = new intent(this, mainactivity.class);             intent.addflags(intent.flag_activity_clear_top);             pendingintent pendingintent = pendingintent.getactivity(this, 0 /* request code */, intent,                     pendingintent.flag_one_shot);              uri defaultsounduri= ringtonemanager.getdefaulturi(ringtonemanager.type_notification);             notificationcompat.builder notificationbuilder = new notificationcompat.builder(this)                     .setsmallicon(r.drawable.ic_stat_ic_notification)                     .setcontenttitle("gcm message")                     .setcontenttext(message)                     .setautocancel(true)                     .setsound(defaultsounduri)                     .setcontentintent(pendingintent);              notificationmanager notificationmanager =                     (notificationmanager) getsystemservice(context.notification_service);              notificationmanager.notify(0 /* id of notification */, notificationbuilder.build());              log.v("notification message",message);         }     } 

     public class mygcmregistrationintentservice extends intentservice {           private static final string tag = "mygcmregistrationintentservice";         private static final string[] topics = {"global"};             /**          * starts service perform action foo given parameters. if          * service performing task action queued.          *          * @see intentservice          */         // todo: customize helper method         public static void startactionfoo(context context, string param1, string param2) {             intent intent = new intent(context, mygcmregistrationintentservice.class);             intent.setaction(action_foo);             intent.putextra(extra_param1, param1);             intent.putextra(extra_param2, param2);             context.startservice(intent);         }          /**          * starts service perform action baz given parameters. if          * service performing task action queued.          *          * @see intentservice          */         // todo: customize helper method         public static void startactionbaz(context context, string param1, string param2) {             intent intent = new intent(context, mygcmregistrationintentservice.class);             intent.setaction(action_baz);             intent.putextra(extra_param1, param1);             intent.putextra(extra_param2, param2);             context.startservice(intent);         }          public mygcmregistrationintentservice() {            // super("mygcmregistrationintentservice");             // ajout             super(tag);                     //fin ajout         }          @override         protected void onhandleintent(intent intent) {               sharedpreferences sharedpreferences = preferencemanager.getdefaultsharedpreferences(this);              try {                 // in (unlikely) event multiple refresh operations occur simultaneously,                 // ensure processed sequentially.                 synchronized (tag) {                     // [start register_for_gcm]                     // call goes out network retrieve token, subsequent calls                     // local.                     // [start get_token]                     instanceid instanceid = instanceid.getinstance(this);                     string token = instanceid.gettoken(getstring(r.string.gcm_defaultsenderid),                             googlecloudmessaging.instance_id_scope, null);                     // [end get_token]                     log.i(tag, "gcm registration token: " + token);                      // todo: implement method send registration app's servers.                     sendregistrationtoserver(token);                      // subscribe topic channels                     subscribetopics(token);                      // should store boolean indicates whether generated token has been                     // sent server. if boolean false, send token server,                     // otherwise server should have received token.                     sharedpreferences.edit().putboolean(quickstartpreferences.sent_token_to_server, true).apply();                     // [end register_for_gcm]                 }             } catch (exception e) {                 log.d(tag, "failed complete token refresh", e);                 // if exception happens while fetching new token or updating our registration data                 // on third-party server, ensures we'll attempt update @ later time.                 sharedpreferences.edit().putboolean(quickstartpreferences.sent_token_to_server, false).apply();             }             // notify ui registration has completed, progress indicator can hidden.             intent registrationcomplete = new intent(quickstartpreferences.registration_complete);             localbroadcastmanager.getinstance(this).sendbroadcast(registrationcomplete);           }          /**          * handle action foo in provided background thread provided          * parameters.          */         private void handleactionfoo(string param1, string param2) {             // todo: handle action foo             throw new unsupportedoperationexception("not yet implemented");         }          /**          * handle action baz in provided background thread provided          * parameters.          */         private void handleactionbaz(string param1, string param2) {             // todo: handle action baz             throw new unsupportedoperationexception("not yet implemented");         }           private void subscribetopics(string token) throws ioexception {             (string topic : topics) {                 gcmpubsub pubsub = gcmpubsub.getinstance(this);                 pubsub.subscribe(token, "/topics/" + topic, null);             }         }           /**          * persist registration third-party servers.          *          * modify method associate user's gcm registration token server-side account          * maintained application.          *          * @param token new token.          */         private void sendregistrationtoserver(string token) {             // add custom implementation, needed.         }          private void sendtokentoserver(string token) {           }       }  

      public class myinstanceidlistenerservice extends instanceidlistenerservice {     public myinstanceidlistenerservice() {     }          @override         public ibinder onbind(intent intent) {                 // todo: return communication channel service.                 throw new unsupportedoperationexception("not yet implemented");         }              // pour les notifs         @override         public void ontokenrefresh() {                 // fetch updated instance id token , notify our app's server of changes (if applicable).                 intent intent = new intent(this, mygcmregistrationintentservice.class);                 startservice(intent);         }     }  

hello found happened, i've forgotten in main

         @override         protected void onresume() {             super.onresume();             localbroadcastmanager.getinstance(this).registerreceiver(mregistrationbroadcastreceiver,                     new intentfilter(quickstartpreferences.registration_complete));         }          @override         protected void onpause() {             localbroadcastmanager.getinstance(this).unregisterreceiver(mregistrationbroadcastreceiver);             super.onpause();         }