In part 1, we developed code to implement an infrastructure that enables multiple trackers. In part 2, we will refactor our code based on SOLID principles to improve its design. SOLID principles consist of five guidelines that help developers create code…

As we’ve previously looked at how to implement offset tracking and stretchable and sticky headers for SwiftUI scroll views, let’s look at...

In Swift, we can do performance testing using the XCTest framework, which is a part of the Xcode development environment. XCTest provides a comprehensive set of tools for writing, running, and analyzing unit and performance tests for Swift applications. This…

Explore SwiftUI toolbars: customization, adaptive layouts, and accessibility for crafting intuitive UIs in this comprehensive guide.

ZMarkupParser HTML to NSAttributedString 渲染引擎的開發實錄

Building a thriving open source ecosystem is important to Swift’s success, and open source packages are the building blocks that help power countless Swift projects. As the number of packages increases, discovery becomes critical for developers needing to…

Swift 6 has a bunch of changes that will change the way we will use Swift in the future, with some of them being breaking changes. Wouldn’t it be handy if we could try out some of these upcoming features ahead of their release, so we can evaluate the impact…

A SwiftUI layout and view modifier for relative sizing. “Make this view 50 % of the width of its container”.

The relative sizing modifier interacts in an interesting way with stack views and other containers that distribute the available space among their children. Understanding why can teach us a lot about SwiftUI’s layout algorithm.

For multiplatform projects where I’m using SwiftUI, it certainly makes developing for multiple platforms at once significantly faster. However, each of Apple...

How to build a custom SwiftUI Text view which only becomes editable on click.

What are your favorite Swift debugging tips?

Swift structured concurrency shortcomings (Part 1)

Today I want to continue the topic of UI testing in Swift by covering another great set of tools the XCTest framework provides us. I love UI testing and protecting the primary user flows in my app. This week we will talk about the hidden gems of the XCTest…