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From Idea to App: Creating iOS UI, Animations, and Gestures by Shawn Welch

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Chapter 2. What Makes an iOS App?

Before you start designing or writing any code, it’s important to understand what goes into an iOS app. This chapter gives you some background information on the iOS environment and the iOS app structure, including file types, executables, and resources. For those new to iOS development, you will find this chapter to be a useful reference with some of the more common files, resources, and settings mentioned throughout the iOS development life cycle and this book.

This chapter also provides some insight into the pros and cons of the iOS app runtime environment, that is, which resources your app can and can’t access while running on an iOS device. In addition, we’ll talk briefly about the primary configuration ...

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