Google Sign-In for Android lets you authenticate a user with the same credentials they use on Google. After a user signs in with Google, you can create more engaging experiences and drive usage of your app.
The Google Android API allows you to integrate sign-in and social features into your app.
Key Developer Features
Google Sign-In is a simple, trusted, and secure way to let people sign in to your app with their
Access the profile and social graph
After users have signed in with Google, your app can welcome them by name and display their
picture. If your app requests social scopes, it can connect users with friends, and access
age range, language, and public profile information.
Getting Profile Information.
The Google Android APIs are part of the Google Play services platform. To use Google features, set up the Google Play services SDK in your app development project. For more information, see the Start Integrating guide for Google Sign-In.