Xcode Instruments, like the Time Profiler, help you identify code problems, memory issues and more. Improve your app performance using detailed insights.

Absolute vs. relative sizing

How can you make sure your AppDelegate has a single responsibility?

Let’s take a look at how caching can be an incredibly powerful tool in various situations, how to build an efficient and elegant caching API in Swift, and how strategically caching various values and objects can have a big impact on the overall performance…

In todays tutorial we will learn how to create a side menu using SwiftUI. I have never created a side menu with UIKit, so I thought it…

A detailed explanation of Bézier curves, and how to do the many things that we commonly want to do with them.

This week, let’s take a look at a few key characteristics of the most common Swift data structures, and also how we sometimes might need to venture outside the standard library to find the right data structure for our needs.

In this article, we’ll show you how to optimize the code and speed up the compiler.

This week I want to talk about the styling of views in SwiftUI. SwiftUI provides a pretty composable architecture for building your apps. Every screen in terms of SwiftUI is a function on some data which returns a view. So let’s talk today about composable…

Swift 5.1 gives us yet another occasion to ponder ontological questions and weigh in the relative merits of various built-in types as stable identifiers.

Github introduced CI and CD based on actions. It allows you to automate how you lint, build, test, and deploy your projects on any…

When working with RxSwift, you should know how to prevent leaks and write tests on Rx memory leaks

Since Xcode 7, iOS developers can generate a code coverage for their app: a report showing which area of their app is covered by unit tests. However, this is isn’t always accurate, let’s see why you should not base your code health only on code coverage.

From nested menus to custom previews, use this guide to become a context menu wizard 🧙‍♂️

I promised myself once: “I will never write an article about architecture, cause it is the banalest topic”. I have never been so wrong in…