AttributedTextValueConstraint

Asked on 2025-06-23

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The concept of AttributedTextValueConstraint is discussed in the session titled "Code-along: Cook up a rich text experience in SwiftUI with AttributedString" from WWDC 2025. This session covers how to use SwiftUI's attributed text value constraint protocol to implement logic for text formatting. For example, you can specify constraints for attributes like foreground color based on certain conditions, such as whether an ingredient attribute is set, which would change the text color to green.

If you are interested in learning more about how to implement these constraints, you can refer to the session Code-along: Cook up a rich text experience in SwiftUI with AttributedString (23:54) where this topic is discussed in detail.

Code-along: Cook up a rich text experience in SwiftUI with AttributedString

Learn how to build a rich text experience with SwiftUI’s TextEditor API and AttributedString. Discover how you can enable rich text editing, build custom controls that manipulate the contents of your editor, and customize the formatting options available. Explore advanced capabilities of AttributedString that help you craft the best text editing experiences.

What’s new in SwiftUI

Learn what’s new in SwiftUI to build great apps for any Apple platform. We’ll explore how to give your app a brand new look and feel with Liquid Glass. Discover how to boost performance with framework enhancements and new instruments, and integrate advanced capabilities like web content and rich text editing. We’ll also show you how SwiftUI is expanding to more places, including laying out views in three dimensions.

Enhance your app’s multilingual experience

Create a seamless experience for anyone who uses multiple languages. Learn how Language Discovery allows you to optimize your app using a person’s preferred languages. Explore advances in support for right-to-left languages, including Natural Selection for selecting multiple ranges in bidirectional text. We’ll also cover best practices for supporting multilingual scenarios in your app.