MVVM(Model-View-ViewModel)

MVVM (Model-View-ViewModel) is a design pattern used in Android development to create maintainable and testable code. MVVM (Model-View-ViewModel) is a design pattern used in Android development to create maintainable and testable code. It separates the development of the graphical user interface from the business logic and the back-end logic (data). Components of MVVM Model Purpose: Represents the data layer of the application. This includes data sources like databases, web services, and repositories. Role: Responsible for handling the data and business logic. Implementation: Can be implemented using plain Java/Kotlin classes, Room database, Retrofit for network operations, etc. View Purpose: Represents the UI layer. This includes activities, fragments, and any custom views. Role: Displays the data and forwards user interactions to the ViewModel. Implementation: XML layout files and UI compon...