table and list view performance

Generated on 4/8/2025

1 search

For improving table and list view performance, Apple introduced several updates at WWDC 2024. In UIKit, collection and table view APIs have been updated to make it easier to update your cells. All views in UI collection view list sections and UITableViews now have the list environment trait set, which helps ensure that cells are styled appropriately in any given list. This update removes the need to know the style of the list when configuring a cell, simplifying the code and potentially improving performance (What’s new in UIKit).

In SwiftUI, lists can be customized through the use of view modifiers, allowing for advanced constructions and performance optimizations. SwiftUI's declarative system automatically keeps your UI up to date when your view state changes, which can help maintain performance (SwiftUI essentials).

These updates aim to simplify code and enhance performance by leveraging new traits and declarative updates.

SwiftUI essentials

SwiftUI essentials

Join us on a tour of SwiftUI, Apple’s declarative user interface framework. Learn essential concepts for building apps in SwiftUI, like views, state variables, and layout. Discover the breadth of APIs for building fully featured experiences and crafting unique custom components. Whether you’re brand new to SwiftUI or an experienced developer, you’ll learn how to take advantage of what SwiftUI has to offer when building great apps.

Get started with HealthKit in visionOS

Get started with HealthKit in visionOS

Discover how to use HealthKit to create experiences that take full advantage of the spatial canvas. Learn the capabilities of HealthKit on the platform, find out how to bring an existing iPadOS app to visionOS, and explore the special considerations governing HealthKit during a Guest User session. You’ll also learn ways to use SwiftUI, Swift Charts, and Swift concurrency to craft innovative experiences with HealthKit.

Unlock the power of places with MapKit

Unlock the power of places with MapKit

Discover powerful new ways to integrate maps into your apps and websites with MapKit and MapKit JS. Learn how to save and reference unique places using Place ID. Check out improvements to search that make it more efficient to find relevant places. Get introduced to the new Place Card API that lets you display rich information about places so customers can explore destinations right in your app. And, we’ll show you quick ways to embed maps in your website with our simplified token provisioning and Web Embed API.

Demystify SwiftUI containers

Demystify SwiftUI containers

Learn about the capabilities of SwiftUI container views and build a mental model for how subviews are managed by their containers. Leverage new APIs to build your own custom containers, create modifiers to customize container content, and give your containers that extra polish that helps your apps stand out.

What’s new in SwiftUI

What’s new in SwiftUI

Learn how you can use SwiftUI to build great apps for any Apple platform. Explore a fresh new look and feel for tabs and documents on iPadOS. Improve your window management with new windowing APIs, and gain more control over immersive spaces and volumes in your visionOS apps. We’ll also take you through other exciting refinements that help you make expressive charts, customize and layout text, and so much more.

What’s new in UIKit

What’s new in UIKit

Explore everything new in UIKit, including tab and document launch experiences, transitions, and text and input changes. We’ll also discuss better-than-ever interoperability between UIKit and SwiftUI animations and gestures, as well as general improvements throughout UIKit.

Migrate your TVML app to SwiftUI

Migrate your TVML app to SwiftUI

SwiftUI helps you build great apps on all Apple platforms and is the preferred toolkit for bringing your content into the living room with tvOS 18. Learn how to use SwiftUI to create familiar layouts and controls from TVMLKit, and get tips and best practices.