AngularJS basics from W3School

Example1: ng-app, ng-model, ng-bind

Android Firebase - How to allow user to sign in with their google account?

Please find the steps for integrating Firebase-google-sign-in using Android studio.

Android Basics - How to show back button on an Activity?

You should have at-least two activities.

Android Basics - How to use Timer to show splash screen?

Here, I’ve created an example of a splash creen just like LaunchScreen.storyboard for iOS. It stays on screen for 3 seconds & it shows login screen. One can refer following example to implement similar spash screen in his/her/their android application.