Where to find the source code for getting AuthToken. In the folder with the android source (core/java/android/accounts), I found the code only works stored in a database and extracts from it. But I am interested in the code that makes a request to the server for AuthToken I'm wondering which of the four methods (OAuth 1.0, AuthSub, ClientLogin and OAuth 2.0) use, because OAuth 1.0, AuthSub, and ClientLogin have been deprecated.