Know how to safely run concurrent Swift code — When the first time I saw the WWDC presentation about actors, I was thrilled with what it is capable of and how it will change the way we write asynchronous code in the near future. …

What I discovered is quite fascinating! — A few weeks back, I read an article by Wojciech Kulik, where he talks about some of the pitfalls in the Swift Concurrency framework. …

It is easier than you think — Prior to iOS 16, having a collection view or table view that will display placeholder cells while waiting for data to load is somewhat troublesome to implement. …

Nope… indexPathsForVisibleRows is not the solution — Imagine you are given a task to find out which table view cells are currently fully visible on screen. So you fire up Xcode, access the UITableView’s indexPathsForVisibleRows and expect that to get the job done. Very soon, you will notice that something is not right. The result you get…

What Apple didn’t tell you… — When Apple introduces UIHostingConfiguration in WWDC, they mainly focus on showcasing how we can use it to create custom cells for table and collection view. This makes me wonder if it is possible to create a custom header and footer using UIHostingConfiguration. After a few hours of poking around, it…

Say goodbye to manual cell refreshing — When working with a table view or collection view, it is essential to ensure that the data model is always in sync with what is being shown on screen. Manually ensuring everything is in sync has always been the case when building UI using a table view or collection view. …

A brief guide to selection state changes and swipe actions — UIHostingConfiguration is one of the tools introduced in iOS 16 to help developers add SwiftUI views into their UIKit apps. By using UIHostingConfiguration, developers can easily create a custom cell using SwiftUI and render it in a UITableView or UICollectionView. In my previous article, I discussed in depth how to…

Define your own layouts — Whenever I use a storyboard or XIB file to create a custom UICollectionViewor UITableView cell layout, I always wonder, wouldn’t it be great if I could use SwiftUI to define the layout? In this year’s WWDC (2022), Apple finally made that happen. In this article, we will explore what it…

No more using UIViewControllerRepresentable and PHPickerViewController — In this year’s WWDC, Apple brings in tons of improvements to SwiftUI, one particular that catches my attention is the PhotosPicker view. Yes, you are right! SwiftUI is finally getting its own native photo picker view in iOS 16. The PhotosPicker view supports all the common functionalities that PHPickerViewController has…