Blockstack -android basic tutorial

Hi guys
I’m new to blockstack -android , as i know very limited information is there on running and building app, can anyone provide or tell basic tutorials for beginners . Like tools for running app ,building ,basic hello world app.

@larry, I am developing an dapp using Blockstack mobile platform (android) in hackathon.

Can I use “app gen” to create initial app. if so were I can find it within android project?