Is possible get the avatar from facebook in the user register??

I’ve just download the login screen from code generation for Android and works fine. Congratulations for this help!
I have a question, is possible to get in the user init the avatar from facebook?
If the answer is yes ( I supposed that will be yes) can you give me some steps of how can I do it?
What ‘type’ of column I have to set in the user data base?

I just found the solution in this link