I want to use a sample Android project in Android Studio.
it project struct is different. how to use that sample project.

the project structure is like

[![enter image description here](https://i.stack.imgur.com/ngbY2.png)](https://i.stack.imgur.com/ngbY2.png)

what I tried:

I try to open projects as "Open projects as Eclipse ADT, Gradle, etc..".
After opening, the application is not runnable using the run icon (icon not in green color).