GcmIntentService.java

public class GcmIntentService extends IntentService {
  @Override
  protected void onHandleIntent(Intent intent) {
      Bundle extras = intent.getExtras();
      GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);
      String messageType = gcm.getMessageType(intent);
  
      if (!extras.isEmpty() && GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) {
              sendNotification(extras.getString("descricao"), extras.getString("endereco"));
      }
  
      GcmBroadcastReceiver.completeWakefulIntent(intent);
  }
  
  ...
}