Firebase, Android, Google Plus Login - Not Able To Retrieve User's Email Address
问题 I am playing around with Google Plus Authentication and Firebase. I am working through the basic auth example with Android at the moment. The basic authentication part is working fine with the code on github, and it works as it should. https://github.com/firebase/firebase-login-demo-android The problem now arises when I am trying to fetch the email address, for some reason it doesn't seem to exist in the authData object. From the Firebase documentation on Google authentication: