About the Sample Code

Each chapter of this book is designed to stand by itself; therefore, each chapter with the exception of Chapter 25, “Debugging and Instruments,” Chapter 12, “Core Data Primer,” and Chapter 14, “Language Features,” has its own sample project. Chapter 3, “Leaderboards,” and Chapter 4, “Achievements,” share a base sample project, but each expands on that base project in unique ways. Each chapter provides a brief introduction to the sample project and walks the reader through any complex sections of the sample project not relating directly to the material in the chapter.

Every effort has been made to create simple-to-understand sample code, which often results in code that is otherwise not well optimized or not specifically ...

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