SwiftUI Weekly - Issue #151

The curated collection of links about SwiftUI. Delivered every Monday.

Reading

Unidirectional flow in Swift

This week I will talk about the state management approach I have used in my apps for years. We will cover building a predictable, testable, debuggable, and modular state management system in Swift.

The Ultimate Guide to Building SwiftData Applications

SwiftData made its debut at WWDC 2023 as a replacement for the Core Data framework. Serving as a wrapper on top of Core Data, SwiftData enables on-device persistence and seamless syncing to the cloud.

Observation Framework in iOS 17

In SwiftUI, data is a source of truth. SwiftUI view would adapt to the data changes without our intervention.

Set a Preview Shape for Views Presenting Context Menus

When presenting a context menu from a SwiftUI view, it defaults to a rectangle shape. To customize the shape, simply use the .contentShape<S>(_ kind: ContentShapeKinds, _ shape: S) modifier and use contextMenuPreview for the first argument, along with the desired shape in the next one.

SwiftUI onChange Deprecation

In iOS 17, Apple deprecated the onChange(of:perform) view modifier replacing it with two new variations.

Videos

SwiftUI AlignmentGuides

In this video, I want to show you how you can use AlignmentGuides in SwiftUI to align views differently in your UI.