if you want to develop a basic android app and user interface then this app help you alot.
this app provide a complete guide for learning android application learning with android studio. It's a complete offline android tutorial for basic level of android app developers.
9Apps 4.9
![How to Root Android Phone | One click ROOT Easy Tutorial [English] screenshot 3](https://i.ytimg.com/vi/1Y0jfjCB2WQ/mqdefault.jpg)
