🤼‍ Motivation

Delegate is among the most commonly used patterns in Swift apps. Multicast delegate extends the canonical pattern allowing to delegate to more than one object.

Dynamic code injection in Swift allows to insert custom pieces of code to arbitrary methods non-intrusively. In this article let's see how to transparently inject logging to view controllers.

You use Swift AnyObject wrong.

Don't use AnyObject as a generics constraint. Don't do "is AnyObject", "as? AnyObject" to check if a variable is a class type. Don't use "AnyObject". Use "class" for a class-only protocol. Use "Any".

Building an image descriptor type to define image resources and how they should be displayed in a UIImageView

Stop Using Structs! I hear all the time people say ‘prefer value types over reference types’. What if we are all getting it wrong? Important: This article was published for Swift 4.0 and updated …

When and how to write documentation and code comments tends to be something that causes a lot of debate among developers. This week, let's take a look at a few simple tips and tricks that can let us write code that is more self-documenting - code that makes…

The unofficial WWDC app for macOS. Contribute to insidegui/WWDC development by creating an account on GitHub.

I think the biggest problem in adding UITests to your iOS solution is that it feels like a lot of extra work. Not only creating the test…

One feature that iOS purists envy and the primary argument for alternative solutions to Swift is code injection or as others like to call…

Let's take a closer look at Texture and how to get the most of it. We'll implement several interfaces in Texture and will see how it actually works

Realtime maps are very popular nowadays. Especially now that there are many on-demand transportation services like Uber and Lyft that have…

Here’s an inclusive App Store Submission Checklist that’d ensure that Apple doesn’t reject your app submission. Read it before you upload your app on App Store.

Working with random numbers in Swift used to be a bit of pain. Swift 4.2 makes this much easier by including a native and fairly full-featured random number API in the standard library.

Most objects require some form of setup before they're ready to be used in an app. While it’s very common to create subclasses for that purpose, this week, let's take a look at an alternative approach to writing setup code that doesn't require any form of…

Chain of responsibility is a well-known pattern that you probably ran into without realising it. In this article we'll continue our journey on design patterns in swift and learn more about chain of responsibility pattern.

Command pattern is a very simple pattern that allows you to decouple a class that invokes a command from a class that knows how to perform it. This gives you incredible flexibility. In this article we'll go over the theory of what command pattern is after…

iOS applications in most cases use REST API to get and post data, we rely on the data we receive to show feedback UI to the user. In some…

This maintains proposals for changes and user-visible enhancements to the Swift Programming Language. - swiftlang/swift-evolution