MVVM | Model View View-Model Simple Real App Android

I will implement google's recommended architecture MVVM in simple real application. The goal is to explain in simpler way so that the architecture is easily understandable.

▬ Gradle Dependencies ▬▬▬▬▬▬▬▬▬▬
// Android Architecture components
implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'