OAuth2.0 Authentication for Google API's without using Account Manager on Android

Question

I would like to know if it is possible to authenticate user accounts on Android for Google API's without Account Manager handling it. I do not want to add the account to the device but would want it such that email id and password are stored in the app database and the authentication performed by retrieving the stored id and password. Is there any such alternative which allows me to authenticate by entering the id and password manually or any such third party alternatives which help me do that cos I am really stuck at this junction. Any pointers will be gladly welcome.

Answer 1

That would completely defeat the purpose of OAuth. The whole idea is that you DO NOT store the credentials in your app. So, the answer is no.