Please advise me on a basic strategy for adding BlueNRG2 STEVAL-IDB008V2 button press (PUSH1 or PUSH2) recognition to the Android ST BlueMS application.

My application is to have an Android app that detects a single GPIO input (a button press) from the BlueNRG2 module. Is there a more simple starting point than the BlueMS application and it's companion firmware project?

I am using Atollic (thank you for Atollic TrueStudio!) and Android Studio. I can build and load both the firmware stack and application and the Android app BlueMS application. I'm having trouble understanding how to modify the examples to recognize a button press on the STEVAL-IDB008V2.