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tech 14 July 2026

WWDC 26 Update: Building a Mac-assed App with SwiftUI

WWDC 26 introduced significant improvements for building 'Mac-assed' apps with SwiftUI. Discover how new APIs and environments can transform your Mac app development.

Article inspired by the original source
A WWDC 26 Update on Building a Mac-assed App with SwiftUI ↗ pfandrade.me

Introduction

With WWDC 26, SwiftUI is evolving into a powerful tool for macOS app development. The growing attention around "Mac-assed" apps—a term that captures the aesthetic and functional essence of native macOS applications—highlights the importance of these updates. The goal is clear: provide developers with tools to create apps that seamlessly integrate into the Mac ecosystem.

Selected States

Before the conference, managing selected states in SwiftUI posed a challenge. The \.backgroundProminence property is an elegant solution that automates the update of foreground view background prominence. This simplifies development when using components like List and Table. The impact is notable: cleaner code and better future compatibility when integrating custom rows into these components.

Practical Example

Imagine you're developing a task management app. Using \.backgroundProminence in a task list automatically highlights the selected task, providing a consistent and intuitive user experience.

Drag & Drop

The \.onDragSessionUpdated API, introduced for OS 27 releases but already available on macOS 26, solves a longstanding issue of visibility into drag-and-drop sessions. This means you can now trigger UI updates as soon as a drag starts and clean them up reliably once the session ends.

Case Study

Take a file management app, for instance. The ability to update the interface when the user starts dragging a file allows you to highlight potential drop targets, enhancing interactivity and user satisfaction.

Conclusion

The SwiftUI updates presented at WWDC 26 mark a significant step towards creating truly native Mac-assed applications. They provide developers with the necessary tools to create user experiences that are both aesthetically pleasing and functionally robust. If you'd like to discuss how these improvements can transform your project, let's discuss it in 15 minutes.

Let's discuss your project in 15 minutes

Ready to leverage these new features for your application? Let's discuss your project in 15 minutes.

SwiftUI Mac-assed WWDC 26 Drag & Drop App Development
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