Adding static library to ofAndroid app

Hi there, with of for Android 0.10 I can’t find a clue to add static libs to my app… I searched for hours in Google dev reference, gradle examples, and of course in this forum (the topic was left unanswered for of 0.10)

I successfully compiled versions of FFmpeg and libvpx libraries outside of Android Studio
The compilation results lies somewhere in
/development/android/of_compiled/lib contains all the .a files
/development/android/of_compiled/include contains all the header files

How can I reference them from my Android Studio project ?