David Kopec's blog.

Master the pattern-matching superpowers of Swift Regex. Learn to write regular expressions that are easy to understand, work with captures and try out RegexBuilder, all while making a Marvel Movies list app!

Don’t change default param’s values when subclassing

The Swift Charts framework became a huge topic on my blog. But I decided to continue this subject to cover everything I’ve experienced with the Charts framework. This week we will learn how to customize the Chart view using a bunch of chart view modifiers…

User Defaults are great for storing user preferences. Share data with other apps and extensions by using App Groups.

Discover how to create captivating animations in SwiftUI using sequential animations. Read practical tips and real-world examples here!

The Swift Cookbook is a collection of common Swift language idioms
and best practices that you can quickly refer to while coding.

This is the beginning of a series of articles about the making of Ice Cubes

Learn how the Mobile Foundations team reduced their time to change a feature by 30 seconds by migrating their Xcode project to Tuist.

In my previous post, I explained how to use symbolic breakpoints to discover when view controllers load their views into memory. Often breakpoints are specif...

Set of best practices for The Composable Architecture projects based on experiences of the team at The Browser Company.

Read how to create thumbnails of images in iOS using Swift and get a recipe that will work most of the times out of the box.

A deep dive into a new feature coming to Swift Package Manager in Swift 5.9: the ability to make network requests from Swift package plugins.

Voice Control is an amazing accessibility technology. Here are some things to look for when building for it.

This is a beginner's guide to learn the basics of the SwiftNIO network app framework by building a basic TCP echo server.

Today's tutorial will focus on using SwiftUI to recreate the UI and functionality of the iOS Timer. We'll construct each of the UI components individually, build out the ViewModel, and then we'll bring everything together.

What’s really the difference between building a piece of UI as a view versus a modifier, and how to choose between those two solutions?

The last but not least post in the series is about accessibility. It is essential to make your app accessible to VoiceOver users. Usually, it is much harder to make your visual content accessible. Fortunately, Apple provides audio graph features allowing…