Swift (iOS/macOS): Tips and Best Practices

This book is not another tutorial on the basics of Swift. It is a collection of real, battle-tested techniques that will help you write cleaner, faster, and more reliable code for iOS and macOS. The author, with over ten years of commercial development experience in the Apple ecosystem, shares insights that usually only come with experience.

The book is intended for developers who are already familiar with the Swift language and Apple platforms but want to move to the next level. You will learn to avoid common pitfalls, optimize performance, and design architecture that won't fall apart at the first refactoring.

What you will learn from this book:

• Advanced memory management techniques: managing ARC, preventing retain cycles and leaks.
• Performance optimization: profiling, working with multithreading (GCD, OperationQueue), reducing power consumption.
• Modern design patterns: MVVM, Coordinator, Redux for SwiftUI and UIKit.
• Working with asynchrony: async/await, Combine, proper error handling.
• Testing and debugging: unit tests, UI tests, TDD, and CI/CD setup.
• SwiftUI and UIKit specifics: when to use what, how to migrate and combine them.
• Networking and data: URLSession, Codable, CoreData, and SwiftData.
• Application security: key storage, protection against reverse engineering.

Dedicated chapters cover topics rarely found in documentation: working with the App Store, certificates, publishing, crash monitoring, and analytics. You will also find checklists for code reviews and templates for organizing projects.

The book is written in a lively style, with code examples that can be immediately applied to your projects. Each tip is backed by an explanation of "why it works" and "what alternatives exist."

Who this book is for: iOS/macOS developers with at least 1 year of experience who want to systematize their knowledge, learn best practices from the community, and stop making the same mistakes.

Whether you are working on a startup or maintaining an enterprise application, these tips will help you save hours of debugging and build products you can be proud of.