title: How to add a library to my project on Android Studio?
body: <p>To resolve my previous question (<a href="https://stackoverflow.com/questions/26963219/how-to-create-a-floating-action-button-fab-in-android-using-appcompat-v21">How to create a floating action button (FAB) in android, using AppCompat v21?</a> ), i found a nice library here: <a href="http://android-arsenal.com/details/1/824" rel="nofollow noreferrer">http://android-arsenal.com/details/1/824</a> , and i downloaded a .zip file.
  The web site contains some instructions about the use of the library, but not how to add it to the project with Android Studio (for example: where to copy the downloaded files, and what files i need to copy)</p>
  
  <p>It is the first time that i use a library, and i don't know what i to do.
  How do I put it to my project?</p>