Preface
When I started writing this edition of this book (which has been in the field and regularly updated since iOS version 4), I thought to myself: what I should do to really overhaul it and make it even more exciting than the previous editions? The answer was to rewrite the whole book—every single word from scratch. Up to and including the iOS 8 Swift Programming Cookbook (where I made the big switch from Objective-C to Swift) was to base every edition on the previous edition. I would go through all the examples from the previous edition to remove the ones that were irrelevant for the new edition or just expendable because they were very simple and basic. I’d then update the remaining examples to make sure they work great with the new iOS version. Then I would also write new content for the new version of iOS. However, after 5 editions, I noticed that many recipes were not really useful anymore and had stayed almost the same since the beginning. So how could I solve this issue? The solution was to not do this any longer. I had to write all new content, and that’s what I did for this book.
The amount of work that went into writing this book was tremendous, on my side and on O’Reilly’s side. I have had to think long and hard about every new recipe, writing all the example code anew and ensuring it works with the latest production tools from Apple. You will learn a lot about Swift 2 and iOS 9 SDK in this book.
And yes, there is a great deal of watchOS material in this book. The ...
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