This week, let’s take a look at convenient, but sometimes divisive language feature — computed properties — and how they can let us build really elegant convenience APIs, how to avoid accidentally hiding performance problems when deploying them, and a few…

Here's my quick guide to creating Swift packages with Xcode.

In many of us, we’re iOS developers who are desire to reduce your app’s loading time. Many and many articles were written to gave you some tricks & tips to improve it, you can check it here Slow App Startup Times, Someday I go through this WWDC video Optimizing…

This week, let’s take a look at how subscripting works in Swift, and a few different ways to incorporate it into the way we design APIs — including some brand new capabilities that are being added in Swift 5.1.

How to edit a Swift package in an Xcode project that depends on the package.

This week I want to show you how to use Shape API in SwiftUI. We will take a look at ready to use shapes like Circle, Capsule, Rectangle, etc. We will learn how to draw super custom shapes by using Path and GeometryReader. In the end, we will build BarChart…

In this drag and drop tutorial you will build drag and drop support into UICollectionViews and between two separate iOS apps.

Get started with unit testing in Swift with XCTest. Learn advanced iOS unit testing principles and patterns with this tutorial and sharpen your knowledge by several practical examples.

Error handling in Swift Combine explained by covering operators like mapError, catch, replaceError, assertOnFailure, and how to map to the Never error type.

Some tips on squeezing Swift for speed

Out with #if DEBUG in and in with XCConfig

This article will be the first third of my investigation into Combine, covering an effort to re-implement the three key protocols of Combine: `Publisher`, `Subscriber` and `Subscription`

Thread Sanitizer is now available on Linux as part of Swift 5.1! Head over to Swift.org and grab a Swift 5.1 Development snapshot to try it out.

Join the web’s most supportive community of creators and get high-quality tools for hosting, sharing, and streaming videos in gorgeous HD with no ads.

Environment is one of the unique features of SwiftUI which we didn’t have before in UIKit. Today I would like to show you all the benefits of using Environment in your apps. Let’s start with describing the idea of Environment. We already discussed it previously…

Learn how Busy Assertion pattern can replace XCTestExpectation when unit testing asynchronous code on iOS in Swift 5.