Implementation of MVVM Architecture

[Grandolf49]

Currently, all the logic of app is written in Activities. It is recommended to follow the MVVM Architectural pattern for developing android apps that are going to be scalable.

Here are some articles

1. https://blog.mindorks.com/mvvm-architecture-android-tutorial-for-beginners-step-by-step-guide
2. https://developer.android.com/jetpack/guide
3. https://proandroiddev.com/mvvm-architecture-viewmodel-and-livedata-part-1-604f50cda1