When developing an app or a library, it’s pretty common that at least once in the course of development, you’ll need to conditionalize compilation of your code. Maybe you’ll be accounting for a bug in the operating system where things that don’t work quite…

In the previous post, we saw how the SWIFT_ACTIVE_COMPILATION_CONDITIONS build setting can inject values in to our .swift files that we can use to conditionalize code depending on our active SDK and/or architecture.

3D touch is the ability to track user’s touch pressure level and, in my opinion, is one of the most interesting and unexploited feature of iOS touch handling system. With this tutorial we are going to build a custom button that leverages on 3D touch to ask…

Xcodegen is a tool, that allows us to generate the xcodeproj file from a definition in a file called project.yml…

There are 23 classic software development design patterns probably first identified, collected, and explained all in one place by the “Gang of Four” (“GoF”), Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides in their seminal book, “Design Patterns:…

One thing that almost all apps and frameworks have in common is that they tend to grow in both size and complexity as time passes. As a project grows it becomes more and more important to maintain a solid and consistent structure, but at the same time it…

In this article we'll implement the edge-weighted digraph in swift. By the end of the article you'll se how simple graphs are and how useful they can be.

Adventures in Swift value equality.

Investigating compiler magic for automatically synthesizing Equatable conformance.

Making a claim that something will never be the case can feel like an invitation for the universe to prove otherwise. Fortunately for us, Swift lives up to this higher standard thanks to the unlikeliest of types.

A common scenario in app development is to build up a list of objects, perhaps to display to the user or for another purpose. Maybe you’re fetching data from...

How to easily implement custom transitions when you navigate between view controllers

Try Try? Try! throws rethrows throw do catch

One of the most common question regarding swift extensions is about stored properties. How many times have you wished a stored property…

The Significance of Movement Of late, I’ve been feeling very stagnant in life. The Significance of Movement hit me one morning when I…

Type inference is a key feature of the Swift type system and plays a big part in the syntax of the language - making it less verbose by eliminating the need for manual type annotations where the compiler itself can infer the types of various values.

Design patterns are an important tool with which developers can manage complexity. In this tutorial, we will discuss observer and memento patterns in Swift.