Programming in Objective-C for iOS and macOS: A Complete Guide to Building Apple Apps Using Xcode, UIKit, and Foundation-Master Legacy Codebases, and

Still trying to understand Objective-C in an age dominated by Swift? Wondering why Apple's original language still matters? Curious about how to maintain legacy apps or build robust macOS tools from scratch?

You're not alone—and this book has the answers you are seeking.

Programming in Objective-C for iOS and macOS is your ultimate guide to mastering Objective-C, the powerful and enduring language behind thousands of Apple apps still running today. Whether you're a complete beginner or an experienced Swift developer needing to maintain legacy codebases, this guide walks you through everything you need to know—without overwhelming jargon or outdated practices.

Inside, you'll explore:

• How Objective-C really works in the Apple ecosystem—understand messaging, memory, and runtime
• Hands-on projects using Xcode, UIKit, and Foundation to solidify your learning
• Side-by-side comparisons with Swift to help you bridge the knowledge gap
• Expert techniques like memory management, blocks, delegation, categories, and protocols
• Real-world solutions to multithreading, JSON parsing, networking, and Core Data
• Debugging tricks and performance tips you won't find in most tutorials
• How to integrate Objective-C with Swift codebases and safely modernize legacy apps

You’ll also learn how to build user interfaces with UIKit, distribute your apps on the App Store, and follow best practices for maintainable Objective-C architecture.

This is not just another syntax manual. It’s a full-stack, full-cycle guide written for developers who want to build real apps, understand Objective-C’s role today, and stay competitive in Apple’s evolving world.

Ready to master Objective-C and unlock a deeper understanding of Apple development? Start learning today.