Implementing SignIn method is one of the very important requirement for any standard application. You may already implemented the SignIn method to your app or may be not done. But, In both case it is important to implement the social SignIn and Sign-up method to your app. Why you should integrate the social SignIn and SignUp method? We have several benefit if we implement the Social SignIn method. You may don't have any backed to handle the user authorization to validate the genuine user May be you have backed but still its very useful to integrate the social SignIn and Sign-up, because Social login is very fast Social login is one click Sign-up option, which make user on-boarding very easily Many users not prefer to provide lots of info in your long user registration form Prerequisite for this tutorial of " How to implement google sign in Android Example " You need a working google account Latest version of android studio A project configured to co...