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The Complete Idiot's Guide® To iPad and iPhone App Development by Troy Brant

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Onward and Upward

That’s a wrap for Part 4. You have covered a sampling of some of the most exciting APIs in the iPhone SDK: multi-touch, location services, media, and maps. There are many more APIs out there that you can use in your app, and the Xcode API documentation is your greatest asset for figuring out how to use them.
The next part is quite possibly the most important sequence of chapters in this book. You see how to fix broken code, how to test your apps on your phone, tools for optimizing your code, and finally how to submit your app to the App Store. You kick off Part 5 by going over debugging techniques no iPhone programmer should be without.

The Least You Need to Know

• To support background processing, set the UIBackgroundModes ...

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