Getting Oauth2 Credentials For Use In An Android Application With A Google Drive Application-owned Account

I'm developing an Android application where the user has requested to use Google Drive as a bootstrap CMS while they develop a real CMS for the second version of the app. This mea

Solution 1:

You can get the auth token by following the steps here:

Using OAuth 2.0 for Web Server Applications

The state parameter is described here:

google oauth2 redirect_uri with several parameters

and is an encoded string that allows the redirect URL to pass back state to the web app being used to get the OAuth2 token.