The Never type in Swift allows you to tell the compiler about an exit point in your code. It’s a type with no values that prevents writing unuseful code by creating dead ends. While the type Never on its own might be a little unknown, you might have been…

Today, we'll take a closer look at the proxy design pattern. We'll get the formal definition out of the way quickly and then we'll jump into some practical examples.


What Is The Proxy Pattern?

The proxy pattern is a structural pattern that helps you limit…

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Kotlin Multiplatform Mobile – a technology that allows developers to share the logic of iOS and Android apps – is now in Beta and is on track to becoming Stable!

Learn how to work with files and directories in iOS. Understand the app sandbox, access system directories, and read and write files using FileManager and URL in Swift.

Learn how to build a small reusable API client with URLSession in Swift, including request creation, response validation, JSON decoding, configuration, and cancellation.

Before iOS 13, if you wanted to have a vertical collection view with horizontally scrolling sections it required embedding a scroll view inside the collection view cell, passing the model around, handling touch events, a lot of delegation, and complicated…

If you call SwiftUI’s task modifier inside a view’s body property, the async operation will run on the main actor. However, this isn’t the case if you call task from a helper property or function that isn’t main-actor-annotated. Why?

Add color gradients and drop shadows to your SwiftUI views.

Mac apps built with Xcode 14.0 and 14.0.1 may contain concurrency bugs because the Swift 5.7 compiler can generate invalid code when targeting the macOS 12 SDK. If you distribute Mac apps, you should build them with Xcode 13.4.1 until Xcode 14.1 is released.

A simple and clean solution to find all the index paths for cells that are fully visible in a table view or collection view.

A practical look at the new protocol introduced in SwiftUI

Apple introduced their Combine framework at the 2019 WWDC, alongside iOS 13, macOS 10.15, and, maybe most notably, SwiftUI. At the time, it seemed like there was quite a bit of excitement that Apple was giving us a first-party reactive programming solution.

Learn the basics of a login screen in SwiftUI gradient colors, custom colors placeholder for text fields and enable or disable buttons.

Let’s see how to store objects in an array with many options And Many Pitfalls.

Alternate App Icons allow your users to customize the icon to fit their home screen. Learn how to change icons in Xcode and Swift.