14. Working with File Wrappers in iCloud

Part IV of the book gets to the heart of iCloud—the APIs for managing documents and data. You have to go back to the basics and understand how common terms you are familiar with have very specific meanings in iCloud. In particular, you may be among the many people who use “document” and “file” interchangeably. There has always been a distinction between those terms, but it hasn’t mattered too much until iCloud. Now it matters.

This chapter introduces the distinctions between these terms and then explores the APIs you need to use to manage files and file wrappers. The remaining chapters in this part delve into the APIs for managing documents on iOS (Chapter 15) and on OS X (Chapter 16). The Core Data API ...

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