Let's get authenticate users through social platforms...
Visit : https://medium.com/flutter-community/social-authentication-in-customized-flutter-applications-5c972bff17f3
You can see whole implementation in below images.
1. Social Flutter Home Page
2. Google Sign In Popup
3. Facebook Sign In Page
4. Twitter Sign In Page
5. Sucess In Android Platform
6. Sucess In iOS Platform
For more info : [email protected]