Android Login And Registration With Firebase
Most apps need to know the identity of a user. Knowing a user’s identity allows an app to securely save user data in the cloud and provide the same personalized experience across all of the user’s devices.
Firebase Authentication provides back end services, and it is easy to use SDKs, and ready-made UI libraries to authenticate users to your app.
More over, It supports authentication using passwords, phone numbers, popular federated identity providers like Google, Facebook and Twitter, and more.
Firebase users have a fixed set of basic properties like a unique ID, a primary email address, a name and a photo URL stored in the project’s user database, that can be updated by the user (iOS, Android, web).
However, you cannot add other properties to the user object directly.
Instead, you can store the additional properties in any other storage services, like Google Cloud Firestore. The first time a user signs up to your app, the user’s profile data is populated using the available information.
If the user signed up with an email address and password. Only the primary email address property is populated. More over, if the user signed up with a federated identity provider(such as Google or Facebook), and if the account information made available by the provider. It is used to populate the user’s profile If the user signed up with your custom authentication system.
For this reason, you must explicitly add the information you want to the user’s profile Once a user account has been created. In addition, you can reload the user’s information to incorporate any changes, the user might have made on another device.
Firebase tutorial overview
With this tutorial you can create a complete login and registration system by Firebase email and password authentication and real time database and firebase storage.
Firebase email and password authentication is the most powerful authentication. Login and registration system by Firebase provides flexibility and security for your app`s users.
This tutorial you will learn how to set realtime database rules to provide this type of security. More over, you will learn how to send email to reset password for the users(forget password link). How to enable users to change their password.
Also, how to upload images to Firebase store and control image size to reduce Firebase storage consumption. And how to enable the uses to reuse their old images.
Firebase multi user login and registration
More over, with this tutorial you will learn how to create firebase multi user login and registration. Google, Facebook and Phone authentication are the most used types of authentication. But, how to link the different type of authentications with the same user? that what we will learn. Lets start a new android studio project.