MVVM in SwiftUI: A Complete Guide with Real-World Examples

Master the Model-View-ViewModel (MVVM) architecture in SwiftUI with practical examples that make your code clean, maintainable, and scalable.

Photo by Jonathan Kemper on Unsplash

SwiftUI embraces a declarative syntax, and to get the most out of it, adopting the Model-View-ViewModel (MVVM) architecture is often the way to go. MVVM helps separate the app’s logic from its user interface, making code more modular and testable. However, getting it right in SwiftUI requires some specific strategies to make data flow efficiently between views and models.

In this article, I’ll guide you through MVVM basics in SwiftUI with real-world examples that bring the concepts to life.

1. What is MVVM?

MVVM, or Model-View-ViewModel, is a design pattern that separates the code into three key parts:

• Model: Contains the data and business logic.
• View: Displays the UI and renders the content.
• ViewModel: Acts as an intermediary that binds the Model to the View, handling data formatting and view logic.

The ViewModel is key to maintaining clean SwiftUI code. By isolating view logic in the ViewModel, your View stays purely focused…