Are there any embed codes for the "Sign in with" widget, but not on the site, but in the mobile application?

Question

Android

There are many ways to register in the system through other accounts. For example OAuth, OpenID, Loginza... But mostly examples of their use as an insert on the site are given. And I want the same, but in a mobile application. What can be applied and how?

Answer 1

You need to dig through the API of specific services through which authorization is planned, for example, VK