Extend the iOS Simulator by building a plugin for it. A dynamic loader and simctl allow injecting custom code into the Simulator. With that, you can modify its behavior.

Explore how to share layout information in SwiftUI's view hierarchy

Don't let anyone tell you to always avoid force-unwrapping in Swift! Force-unwrapping is just a tool, and you need to learn when to use it.

The cycle for creating great accessible apps starts and ends with testing. Sure, it is always better to get feedback from users to create…

As (possibly) a response to jailbreaking become popular again in recent times, Apple has released their own solution to hackers creating compromised versions of your app.

Many developers find unit testing confusing. In this essential guide I show the simple concepts that will make unit testing more approachable.

Learn how to use the powerful NSPredicate API for searching and filtering.

An overview of the tools and directives that enable us to influence how our Swift code gets compiled, and what sort of situations that each of those tools might be particularly useful in.

In the last couple years, Apple has made some good efforts to improve their testing tools. Today, I’ll walk you through some tips to make sure your test suite run at their best capacity.

Kuba Suder's blog on Mac & iOS development

A journey on how to build a wrapping view in SwiftUI

Learn how to use the Data Protection APIs on iOS and iPadOS.

Every once in a while I look at a feature in Swift and I fall down a rabbit hole to explore it so I can eventually write about it. The protocol is one of these Swift features. If you’ve ever written…

One of the most important things that Apple did release this year was the native app and scene management for SwiftUI apps. This week we will understand how to manage our apps using App protocol without old AppDelegate. We will learn how to achieve the same…

In the past, the way I test a custom URL scheme is to go to Safari and open up any of my custom URLs. If you are still doing that, there is a better alternative.

Discover more about Widgets and WidgetKit on iOS 14 using Swift and SwiftUI with 10 tips covering many use cases and hidden rules.

Our performance optimization journey

iOS 13 introduced a brand new framework — BackgroundTasks for handling the background task when app is sent to background. Let’s see more~