BroadcastReceiver e Service

broadcast_and_service.java

public class MeuGcmBroadcastReceiver extends WakefulBroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        // Explicitly specify that GcmIntentService will handle the intent.
        ComponentName comp = new ComponentName(context.getPackageName(),
                GcmIntentService.class.getName());
        // Start the service, keeping the device awake while it is launching.
        startWakefulService(context, (intent.setComponent(comp)));
        setResultCode(Activity.RESULT_OK);
    }
}

public class MeuGcmService extends IntentService {
    public static final int NOTIFICATION_ID = 1;
    private NotificationManager mNotificationManager;
    NotificationCompat.Builder builder;

    public GcmIntentService() {
        super("GcmIntentService");
    }
    
    @Override
    onHandleIntent(Intent intent){
        Bundle extras = intent.getExtras();
        //processamento como desejar
        processaMensagem(extras);
        MeuGcmService.completeWakefulIntent(intent);
    }