A story about updating Themis Carthage package with the latest OpenSSL for iOS and macOS apps: scripts, errors, testing matrix and working solution.

Explore how delay and repeatForever affect an animation.

I can't tell it is a stupid or genius algorithm, but it sure got a beauty in it.

Simple support for supporting versioning and migrations in Codable models.

Prerequisite: You will need macOS Catalina (10.15)+ and Xcode 11+ to run Xcode Previews.Apple introduced Xcode Previews in WWDC 2019 alongside with SwiftUI, which allow us to view UI changes immediately after each change, instead of needing to recompile the…

In this article, I share how we investigated a bug in UIKit

Add this progress bar to any screen in less than a minute

Discover techniques to build interactive animations on iOS using UIViewPropertyAnimator

While working on InterposeKit, I had a rather specific need: Create an implementation that simply calls super, but at runtime instead of at compile time. Doesn’t sound so hard, does it? Well, here we go again.

The @discardableResult attribute allows you to remove warnings like "Unusued return value" in Swift. Learn how and when to use this powerful attribute.

Let’s take a look at a few key APIs and techniques that can be really useful when building custom developer tools, scripts, or other kinds of automation, in Swift.

🎨 iOS Design and UX Tips 🎨 I’ll be extrapolating out things I’ve learned, read from the HIG and have seen that make an iOS app look and feel good. Tip 1) Make a table view row animate its selection state as it’s popping and pushing on the nav Stack.

Connect with fellow developers and Apple experts as you give and receive help on a wide variety of development topics, from implementing new technologies to established best practices

Color Blended Layers, Offscreen-Rendered, and more — all without Xcode.

Swift Async/await is still not here, but using a task-based approach gets us pretty far in proposed functionality and close in similarity.

What are Swift Literals and how do they work?

Implement a SwiftUI paginated list with endless scroll using the Combine framework and MVVM iOS app architecture.

WWDC20 is already around the corner, and we are waiting for massive changes and additions to the SwiftUI framework. It is a perfect week to wrap up the season with a post about one of the strongest sides of the SwiftUI framework, which is animation. Today…

A view controller is one component where memory leak usually takes place since it holds many pieces together. One of the easiest ways to detect them is to see if a view controller is not being deallocated. Let's see how Xcode breakpoint can help you find…

How to natively draw gradients on iOS and macOS with CAGradientLayer