Datasheet

Chapter 1: Introducing Xcode 4

Figure 1.15

Create a very simple iOS app, and test it in the Simulator. The Simulator is best considered an educa-

tional rather than a production environment. It’s adequate for apps with simple text and graphics, but it

doesn’t fully implement the GPS, accelerometer, gyroscope, or other hardware options in iOS devices.

OS X and iOS cross-development

In theory, you can migrate projects between platforms. In practice, Cocoa on OS X and Cocoa

Touch on iOS have so many differences that dual-platform development of a non-trivial appli-

cation is either challenging or unrealistic.

Currently iOS and OS X applications have distinct markets and partially distinct distribution

models. Although a few applications have appeared on both—social networking tools and

games are the most popular choices—Xcode does little to simplify the development of multi-

platform projects.

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