Professional Swift (iOS/macOS): Advanced Techniques

This book is not another introduction to Swift. It is a concentrate of advanced techniques and architectural solutions for those who already write in Swift and want to reach a new level of professional mastery. The author, Alexey Vorontsov, a leading iOS developer with 10 years of experience, shares techniques that are usually mastered through years of practice.

What is this book about?

The book covers the most complex and important aspects of modern iOS and macOS development:

• Advanced language features: generics with associated types, opaque types, result builders, property wrappers, macros, and metaprogramming.
• Multithreading and asynchrony: deep dive into GCD, NSOperation, async/await, actors, and Sendable. How to avoid deadlocks and race conditions.
• Next-generation frameworks: Combine (operators, Subjects, Schedulers, testing) and SwiftUI (custom layout, preference key, animations at the UIKit level).
• Architecture and design: MVVM, Redux, TCA (The Composable Architecture), Coordinator, Dependency Injection in practice.
• Performance optimization: profiling with Instruments, memory management (ARC, weak/unowned, cyclic references), working with Core Data and SwiftData.
• Professional tools: advanced debugging, Xcode Tips & Tricks, CI/CD, testing (Unit, UI, Snapshot).

Who is this book for?

• iOS/macOS developers with 2+ years of experience who want to deepen their Swift knowledge.
• Developers transitioning from UIKit to SwiftUI or mastering asynchrony.
• Tech leads and architects looking for proven patterns for complex projects.
• Anyone who wants to write clean, maintainable, and fast code for Apple platforms.

What will you learn?

After reading this book, you will be able to:

• Design scalable architectures for applications of any size.
• Work effectively with multithreading, avoiding common mistakes.
• Use Combine and async/await for reactive programming.
• Create complex custom UI components in SwiftUI.
• Optimize performance and manage memory at a professional level.
• Set up testing and continuous integration processes.

Each chapter contains real code examples, ready to use, and assignments for independent work. The book is written in a lively, understandable language without fluff — only practice and deep understanding.

If you feel you have hit a ceiling in your development as a Swift developer, this book will be your springboard to new heights.