Simplifying State Management in SwiftUI with @Environment: A Practical Guide

Sharing State

Photo by Cody Otto on Unsplash

In SwiftUI it’s possible to share state and pass data across different views with @Environment.

Essentially you are making values globally accessible throughout the view hierarchy, creating a modular and maintainable codebase.

To help you out I’ve created this article to demonstrate a practical example of @Environment that shows how you can use this property wrapper to enhance SwiftUI projects.

What is it?

@Environment is a property wrapper that enables you to access values passed down from parent views or the app’s environment.

To do so we can either use system-provided values or custom properties, although they both work in much the same way.

System-provided environment values

SwiftUI comes built-in with some environment values that are useful in common scenarios.

Here are some interesting ones I have picked to take a look at.

Color scheme

We have an environment value that let’s developers access the current color scheme, be it light or dark mode.