Enforce architecture and best practices in your iOS apps as unit tests, with a modern, open-source linter for Swift.

Swift error messages can be cryptic, but as a community, we can make them clearer. Help others (and your future self) by contributing better explanations.

Explore how LLMs are changing the way we code and the exciting opportunities ahead as Apple brings 'vibe coding' to the Xcode ecosystem for Swift developers.

Today’s example shows a static property providing the current date.
Perfect mechanism when we don’t want to inject it everywhere where it’s used.
How to test it? Check it out ⤵️
Initial setup
let currentDateFormatter: DateFormatter = {
let formatter =…

A deep dive into using PiP mode.

I’m very passionate about my health routine and have built a bunch of health-related apps. Almost all of them are integrated with Apple Health and provide tons of additional calculations over the functionality that the Apple Health app gives us. Today, we…

Learn how to further customize intents for your SwiftUI apps with parameters and dialogs.

Explore ways to create and customize mesh gradients in SwiftUI, including color adjustments, finer control with Bezier points, and color position animations to add variety and emphasis to your design.

Manual QA is slow, clumsy and error-prone. When you click through every flow in your app by hand, you lose precious time—and you still might wake up at 3 AM wondering if you forgot to ... <a title="Getting Started with Unit Testing for iOS Development" class="read…

If you’ve ever shipped a bug where a button did nothing, a sheet didn’t show, or the wrong item appeared on screen—this post is for you. Most iOS app bugs happen in the UI layer. ... <a title="XCUITest: How to Write UI Tests for SwiftUI Apps" class="read…

Writing tests sounds boring until your app breaks and you have no idea why. In this post, we’ll walk through how to write simple, focused unit tests for a SwiftUI app using Apple’s built-in framework: ... <a title="Introduction to XCTest: How to Write Unit…

As we started getting closer to the release of Swift 6.0, I had this a bright idea. I decided to write about every evolution proposal related to concurrency that would ship with that release. This resulted in 12 posts and let me tell you, it was a lot of…

Learn how to implement dependency injection in modular iOS apps. Compare manual DI, dependency providers, and third-party solutions for clean, maintainable code.

In this video, you'll learn 3 different ways to initialize @State in SwiftUI, including one you might not be using yet!

Sorting App: https://github.com/pitt500/SortingApp
New Observation Pattern in SwiftUI: https://swiftandtips.com/implementing-observation…

This week, I am taking things further by handling deep linking from notifications. I will show you how to direct users to a specific screen when they tap a notification.

Intro
If you’re able to solve this, it means you understand TaskLocal really well.
Riddle
Look at the attached code snippet and guess:

What will be printed at each step?
Is the order of prints always the same?

class Riddler {
@TaskLocal static var message…

A lot of modern apps have a networking component to them. This could be because your app relies on a server entirely for all data, or you’re just sending a couple of requests as a back up or to kick…

It’s no secret that Swift concurrency can be pretty difficult to learn. There are a lot of concepts that are different from what you’re used to when you were writing code in GCD.

Explore how SwiftUI’s .ignoredByLayout() keeps visual transforms from affecting layout, enabling precise geometry reading and fixing complex layout issues.