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Xcode 16 added a property to asset catalogs to opt-out of asset symbol generation. This is especially useful for Swift Packages which had no way to disable the project settings they inherited. Asset Catalog Symbol Generation – A Recap Xcode 15 introduced a feature to create Swift, and Objective-C, symbols for colors and images in […]
Observation framework came out along with iOS 17 in 2023. Using this framework, we can make objects observable very easily. Please refer to @Observable macro in SwiftUI for quick recap if needed. It also has a function withObservationTracking(_:onChange:) what can be used for cases where we would want to manually get a callback when a tracked […]
The Entry macro reduces the boilerplate when customizing the SwiftUI environment. Creating New Environment Values – A Recap Adding our own values to the SwiftUI environment is a common operation but it requires some boilerplate code each time. See SwiftUI Custom Environment Values for an example but here’s a quick recap: Create the environment key […]
It took a long time, I mean years, but it finally happened. I stumbled on a struct which had a property of the same type. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. […]
In addition to scroll related view modifiers covered in the previous blog post, there is another one for detecting scroll view phases aka the state of the scrolling. The new view modifier is called onScrollPhaseChange(_:) and has three arguments in the change closure: old phase, new phase and a context. ScrollPhase is an enum with […]
WWDC’24 brought some updates to scrolling. One of which is onScrollGeometryChange(for:of:action:) what we can use for reacting to scroll geometry changes. The view modifier has two closures, where the first one is transforming the scroll geometry into an arbitrary equatable type of our liking. If that value changes, the action closure is called. It is […]
WWDC’24 brought a lot of new and SwiftUI received many updates. One of which, is the new NavigationTransition protocol and the zoom transition. And that is pretty much what it contains at the moment. A built-in way to add a zoom transition to the view. Easy to get going, but does not provide customization, at […]
Every year I watch WWDC and write down some notes. But I’ve just realized that I’ve never shared those notes and it felt like something I should do, so I’ve decided to do just that! My approach is to pick a handful of sessions that are immediately useful / interesting to me and ignore the […]
Disclaimer: The trick I’m going to show here is quite powerful, but like every other underscored attribute in Swift, this is something you should avoid messing with unless you know exactly what you’re doing. There are lots of pitfalls attached to these attributes, and the behavior of underscored attributes can change at any time and […]
Balancing Engineering Ambition with Product Realism Introduction In July of 2023, Etsy’s App Updates team, responsible for the Updates feed in Etsy’s mobile apps, set off with an ambitious goal: to revamp the Updates tab to become Deals, a home for a shopper’s coupons and sales, in time for Cyber Week 2023. The Updates tab […]