Add a user authentication flow to a Flutter app using FirebaseUI

1. Before you begin

In this codelab, you'll learn how to add Firebase Authentication to your Flutter app using the FlutterFire UI package. With this package, you'll add both email and password auth and Google Sign In auth to a Flutter app. You'll also learn how to set up a Firebase project, and use the FlutterFire CLI to initialize Firebase in your Flutter app.

Prerequisites

This codelab assumes that you have some Flutter experience. If not, you might want to first learn the basics. The following links are helpful:

• Take a Tour of the Flutter Widget Framework
• Try the Write Your First Flutter App, part 1 codelab

You should also have some Firebase experience, but it's okay if you've never added Firebase to a Flutter project. If you're unfamiliar with the Firebase console, or you're completely new to Firebase altogether, see the following links first:

• Firebase Fundamentals docs
• Get to Know Firebase with Flutter codelab.

What you'll create

This codelab guides you through building the authentication flow for a Flutter app, using Firebase for Authentication. The application will have a login screen, a ‘Register' screen, a password recovery screen, and a user profile screen.