Apple has deprecated UIWebView and will not be accepting new apps with UIWebView starting April 2020 and app updates with UIWebView starting December 2020. If your app uses UIWebView you should replace it with WKWebView.

Debugging asynchronous code is hard. Learn how you can use Timelane to make debugging your Combine and RxSwift much easier by visualizing your streams.

Exploring iOS, SwiftUI & much more.

Ordered Collection Diffing is a feature added in Swift 5.1 that allows you to calculate and apply the difference between two collections. Using diffing libraries is common in iOS for a few reasons, the most popular one being to handle the addition and removal…

Testing private methods and variables is not easy. Dependency injection and the @testable attribute allows us to write the required tests in Swift.

And why you will never directly use UITableViewDataSource again

Learn Swift by building a classic To Do app on top of Apple’s CloudKit

This article shows you how to handle user sign in, sign out and Apple ID’s credential revoke when your app is using Firebase Authentication.

Today we will continue mastering view preferences in SwiftUI that we touched a few weeks ago. Anchor preferences are another type of view preferences provided by SwiftUI. The main goal of anchor preferences is to pass layout data like bounds, center coordinates…

Let’s take a look at the SwiftUI layout system by starting to build a full-screen view from scratch. Along the way, we’ll use many different techniques and APIs, which lets us explore the underlying rules of the SwiftUI layout system.

A gentle introduction to using Combine to validate user input.

Slides and materials for talks I've given 🎤. Contribute to zntfdr/talks development by creating an account on GitHub.

People can use a pointing device like a trackpad or mouse to navigate the interface and initiate actions.

Apple introduced new pointer events in iOS 13.4 to better support trackpad and mouse devices.

Gui Rambo writes about his coding and reverse engineering adventures.

Apple introduced the hover effect a few years ago to improve the interaction of the trackpads on iPadOS. Later, it became available on tvOS, producing the same effect while the user navigated through the app using Apple TV Remote. Nowadays, we can use the…

Global functions, or functions that can be accessed from anywhere without the scope of a specific type is an old concept that was popular in languages like C and Objective-C, but unrecommended in Swift as we would rather have things that are nicely typed…