ViewModel

What is ViewModel?

A ViewModel is a class that is responsible for preparing and managing the data for an Activity or a Fragment in Android applications. It survives configuration changes (like screen rotations) and helps to keep the UI code cleaner by decoupling it from the data logic. In the context of other platforms beyond Android, the ViewModel is a part of the Model-View-ViewModel (MVVM) architectural pattern, where it acts as an intermediary between the Model (data layer) and the View (UI layer), exposing data streams and commands that the View can bind to.