This is a simple Tick-Tak-Toe game for Android phones and tablets which has been made for the purpose of learning.
To build this simply follow the standard steps to import project to Android Studio. Here is a link that should help https://www.youtube.com/watch?v=E0MjorpDWxc
Refer here to learn how to integrate Android Studio with GitHub.
APK of this project is avilable here.