Can someone help me with the provided Qt notification code?

Mena

I used the android Qt notification example code provided to add notifications to my app.
I created an android service that runs in the background.
I now have an app that can produce android notifications and has a service running in the background.

My problem now is that I cannot issue notifications from the service code!
In the C++ app code i simply do this to get a notification:

NotificationClient *notificationClient = new NotificationClient(&engine);
 s="App Hi!";
 ss=QString::fromStdString(s);
notificationClient->setNotification(ss);

But, if I do the same from the C++ service code, nothing happens!