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Swift (iOS/macOS) Application Performance
Swift (iOS/macOS) Application Performance
Summary:
The book "Swift (iOS/macOS) Application Performance" is a practical guide for developers who want to create fast, responsive, and energy-efficient applications for the Apple ecosystem. The author, Artyom Belov, shares his experience in profiling and optimizing real-world projects, ranging from simple algorithms to complex graphics.
What is this book about?
The book covers all key aspects of Swift application performance:
- Profiling and Diagnostics — working with Instruments, Time Profiler, Allocations, Leaks, and other Xcode tools.
- Memory Management — ARC, weak/unowned references, avoiding retain cycles, working with large objects.
- Code Optimization — efficient algorithms, working with collections, multithreading (GCD, OperationQueue, async/await).
- Graphics and Animation — Core Animation, Metal, UIKit vs SwiftUI, reducing GPU load.
- Network and Data — caching, serialization (Codable), working with databases (Core Data, Realm).
- Energy Consumption — how to write code that saves device battery.
Who is this book for?
The publication is intended for intermediate and advanced iOS/macOS developers who are already familiar with the basics of Swift and want to take their applications to a new level of speed and stability. The book will be useful both for creators of games and applications with heavy graphics, and for developers of business applications where response speed is critical.
What will you learn?
- How to find and eliminate bottlenecks in code using profilers.
- Why some Swift constructs run slower than others and how to replace them.
- How to properly manage memory to avoid lags and crashes.
- Secrets of UI optimization for smooth animations at 120 FPS.
- How to write multithreaded code without races and locks.
After reading, you will be able to confidently optimize existing projects and build performance into the architecture from the start. The book contains numerous code examples, checklists, and practical tips that can be immediately applied in your work.