How to Add Libraries to Android Studio

http://gmariotti.blogspot.com/2013/06/quick-tips-convert-to-new-gradle-based.html

https://www.youtube.com/watch?v=wCKWIDGULfY

https://www.youtube.com/watch?v=1MyBO9z7ojk

create new dir on root folder called "libraries'
copy the library project to 'libraries'

edit settings.gradle
include ':libraries:mylib'

Now add the dependency to project

File, project structure, project settings

click on "Dependencies" tab, click on "+" and select "Module dependencies"