Learn more about SwiftUI

In iOS 18, Apple has revamped the way that tab bars look. They used to be positioned at the bottom of the screen with an icon and a text underneath. Starting with iOS 18, tab bars will no longer be displayed in that manner. Instead, on iPad you will have your tab bar on the […]

In iOS 18, SwiftUI’s ScrollView has gotten lots of love. We have several new features for ScrollView that give tons of control to us as developers. One of my favorite interactions with scroll views is when I can drag on a list an a header image animates along with it. In UIKit we’d implement a […]

One of the key features that was missing from SwiftUI when it first shipped was a good way to do programmatic navigation. There were some ways to handle this before iOS 16 introduced NavigationPath but it wasn’t very satisfying to use those APIs and they could be rather unreliable at times. To see an example, […]

By default, a NavigationSplitView in SwiftUI will show users an option to toggle the visibility of the sidebar. If you want to prevent this button from showing up so that users will always have to see your sidebar, you can do this by applying the toolbar(removing:) view modifier to your split view’s sidebar as follows: […]

With iOS 17, we’ve gained a new way to provide observable data to our SwiftUI views. Until iOS 17, we’d use either an ObservableObject with @StateObject, @ObservedObject, or @EnvironmentObject whenever we had a reference type that we wanted to observe in one of our SwiftUI views. For lots of apps this worked absolutely fine, but […]

WIth the introduction of Xcode 15 beta and its corresponding beta OSses (I would say iOS 17 beta, but of course we also get macOS, iPadOS, and other betas…) Apple has introduced new state mangement tools for SwiftUI. One of these new tools is the @Bindable property wrapper. In an earlier post I explained that […]

Sometimes in SwiftUI apps I’ll find that I have a model with an optional value that I’d like to pass to a view that requires a non optional value. This is especially the case when you’re using Core Data in your SwiftUI apps and use auto-generated models. These models will usually include optional values for […]

UPDATE FOR XCODE 14.1: This issue appears to have been partially fixed in Xcode 14.1. Some occurences of the warning are fixed, others aren’t. In this post I’m collecting situations me and others run into and track whether they are fixed or not. If you have another sample that you think is similar, please send […]

This post is up to date for Xcode 15 and newer. It supersedes a version of this post that you can find here On iOS 15, Apple granted developers the ability to present partially visible bottom sheets using a component called UISheetPresentationController. Originally, we had to resort to using a UIHostingController to bring this component […]

It’s been a while since I published my post that helps you wrap your head around Swift’s property wrappers. Since then, I’ve done more and more SwiftUI related work and one challenge that I recently had to dig into was passing dependencies from SwiftUI’s environment into a custom property wrapper. While figuring this out I […]