qisdk-tutorials | QiSDK sample , contains the tutorials for the QiSDK | Learning library

I have a problem with some simple kotlin code on a pepper robot. I followed the "get started" tutorial from softbanks (https://qisdk.softbankrobotics.com/sdk/doc/pepper-sdk/ch1_gettingstarted/hello_human_tutorial.html) and it works fine, except to start the function onRobotFocusGained. I have implemented some logs to see, that the program starts the functions "onCreate", "onStart" and "onResume" but never the "onRobotFocusGained". If I start the code from the tutorial on GitHub (https://github.com/aldebaran/qisdk-tutorials), it works fine. But this program is too heavy for any complete beginners. My goal is to implement a minimal example for my colleagues to start with programming on pepper.

So, how pepper starts the function "onRobotFocusGained" (https://qisdk.softbankrobotics.com/sdk/doc/pepper-sdk/ch2_principles/focus_lifecycle.html#focus-lifecycle)?

Here is my short program for pepper to say once "hello humans" if i start the program but pepper never says it.