Weekly articles about Swift and iOS Development

How to use the @available attribute in Swift

Learn to make Swift code only available for certain language versions or platforms.

How to import Objective-C types as optionals or non-optionals into Swift

Learn how to use nullability declarations and macros.

Developer guide on keychain for iOS

Learn how to securely store passwords with Apple's Keychain API.

Understanding basic animations in SwiftUI

Learn different options to animate SwiftUI views.

How to store a Swift struct in UserDefaults

Learn about the pitfalls when using Codable types in UserDefaults.

Preparing for a technical iOS job interview with questions and answers

This is a book preview including one example question and answer for every main topic.

Authorizing App Store Connect API requests

Learn how to create and use a JSON Web Token when communicating with the App Store Connect API.

How to perform a lightweight migration in Core Data

Learn the possibilities Core Data provides to migrate model changes.

Developer guide on iOS code signing & provisioning

Understanding provisioning profiles & certificates.

How to bridge completions handlers to Swift's async/await

Understand Swift continuations to create your own async/await functions.

Developer guide on the App Store Connect API

Learn how to automate App Store Connect.

Cheat sheet on Combine operators for iOS development

Get an overview on Publisher operators in Combine.