java - group list facebook sdk on android not working -

im trying users group list.

before ask how extract information "response" code:

permissions:

this.login = (loginbutton)findviewbyid(r.id.login_button); login.setreadpermissions(arrays.aslist("user_groups", "friends_groups")); 

request:

request share = request.newgraphpathrequest(session, "/me/groups", new request.callback() {          @override         public void oncompleted(response response) {             graphobject go = response.getgraphobject();             log.d("getting groups", go.tostring());          }     }); 

first of few issues: 1. log.d line not showing. meaning app dosent call back.

1. is code ok?

2. how handle response, meaning how extract information?

3. thank !