Learn everything you need to know about Swift mocking protocols, in addition to dummies, stubs, and fakes.

In this Swift algorithm tutorial, we'll look into how we can implement a heap based priority queue to search a graph for the shortest path.

The typical audio environment for HomePod has many challenges — echo, reverberation, and noise. Unlike Siri on iPhone, which operates close…

Simple macOS editor app to help you manage iOS and macOS app localizations by allowing you to edit all the translations side by side - igorkulman/iOSLocalizationEditor

Scroll views with images are featured ubiquitously in iOS apps. Images help engage users but showcasing them on a small device as the…

How do you deal with the system interrupting your UI tests to ask the user for permissions?

Thanks to SE-0228, you can control exactly how you want string interpolations to print. Thank you Brent for giving this to us. It’s a doozy! Let me share some examples. Consider printing opti…

In this article we'll get you started with memory graph debugging and show you some of the cool features of this great tool.

I’ll explore how to apply the power of RxSwift, a reactive framework, to make animation code look much cleaner, and easier to read. My client wanted a story told through a sequence of animations rather than by playing a pre-rendered video, and with RxSwift…

Optimize your workflow in Xcode with optimized behaviors to quickly navigate to relevant navigators and keep yourself in your development flow.

A look at how we generate our screenshots for the iOS App Store.

One of the very intriguing sessions carried out by some of Apple’s finest debugging engineers during 2018’s WWDC was Advanced Debugging…

In the first part of this three parts tutorial, we’ve covered how to utilize Xcode breakpoints to manipulate an existing property value…

Using plain functions to compose views

When using syntactic sugar, what we ideally want is to be able to strike a nice balance between low verbosity and clarity, and this week, let’s take a look at a few different ways that type aliases can enable us to do just that.

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In this tutorial, I’ll try to develop an image classifier iOS app to see how I can use Apple’s ML tools to detect pediatric pneumonia.

When Xcode runs your unit tests, it uses the App as a host for the tests. The tests only run after the App has finished launching. Loading core data, networking or other setup work you do from the App delegate slows down your unit tests. Here’s a quick tip…