The Android SDK the UserService.java file these two functions (loginWithGooglePlus and loginWithGoogleSDK) are signatures are defined but not documented and they are not included in the only API documentation.
Please describe what the purpose of each function, when to use, what gets returned.
Hey Barry
You are right, this functionality is not documented yet.
I have created an internal ticket to cover this
I would recommend you reading an article describing Login with Facebook functionality
which shares the idea