I have developed an android application that uses the GoogleDrive api,
When under debug or running the debug version, the application works fine, and correctly authenticates to the attached google account..etc. When I build a release version, (with my signed keys), and install the apk file, when I run, the Googleapiclient fails to "connect", using the same google account that works under debug, giving me a "Sign in Failed" message, after it tries once to resolve.
solution was here https://developers.google.com/drive/android/get-started
I need to create a seperate OAuth 2.0 client ID for the released version of my application, using the sha1 key from my release key.