Build WhatsApp Chat App Kotlin Android Studio Part 4 Sign Up Fragment

WhatsApp Messenger, or simply WhatsApp, is an American freeware, cross-platform centralized instant messaging and voice-over-IP service owned by Facebook, Inc. It allows users to send text messages and voice messages, make voice and video calls, and share images, documents, user locations, and other content.
In this video we build the authentication activity in which we uses viewpager tablayout and a xml file for background curve. ViewPagerAdapter for controlling the fragment state.
Mobile app projects can be the X factor in your resume, and they can give you an upper edge when it comes to job interviews. Good app dev projects can be crucial to crack jobs in both startups and MNCs.
So maybe this project can be helpful for your minor College project or part of your minor or major college project.
Android Studio is the official Integrated Development Environment (IDE) for Android app development, based on IntelliJ IDEA . On top of IntelliJ's powerful code editor and developer tools, Android Studio offers even more features that enhance your productivity when building Android apps, such as:
1= A flexible Gradle-based build system
2= A fast and feature-rich emulator
3= A unified environment where you can develop for all Android devices
4= Apply Changes to push code and resource changes to your running app without restarting your app
5= Code templates and GitHub integration to help you build common app features and import sample code
6= Extensive testing tools and frameworks
7= Lint tools to catch performance, usability, version compatibility, and other problems
8= C++ and NDK support
Built-in support for Google Cloud Platform, making it easy to integrate Google Cloud Messaging and App Engine
Kotlin is a cross-platform, statically typed, general-purpose programming language with type inference. Kotlin is designed to interoperate fully with Java, and the JVM version of Kotlin's standard library depends on the Java Class Library, but type inference allows its syntax to be more concise. Kotlin mainly targets the JVM, but also compiles to JavaScript (e.g., for frontend web applications using React or native code (via LLVM); e.g., for native iOS apps sharing business logic with Android apps. Language development costs are borne by JetBrains, while the Kotlin Foundation protects the Kotlin trademark.

On 7 May 2019, Google announced that the Kotlin programming language is now its preferred language for Android app developers. Since the release of Android Studio 3.0 in October 2017, Kotlin has been included as an alternative to the standard Java compiler. The Android Kotlin compiler produces Java 6 bytecode by default (which runs in any later JVM), but lets the programmer choose to target Java 8 up to 15, for optimization, or allows for more features, e.g. Java 8 related with Kotlin 1.4, and has experimental record class support for Java 16 compatibility.
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