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Chapter 1
Welcome to the Jungle
So, you want to write iPhone, iPod touch, and iPad applications? Well, we can’t say that we blame
you. iOS, the core software of all of these devices, is an exciting platform that has been seeing
explosive growth since it first came out in 2007. The rise of the mobile software platform means that
people are using software everywhere they go. With the release of iOS 6, and the latest incarnation
of the iOS software development kit (SDK), things have only gotten better and more interesting.
What This Book Is
This book is a guide to help you get started down the path to creating your own iOS applications.
Our goal is to get you past the initial difficulties, to help you understand the way iOS applications
work and how they are built.
As you work your way through this book, you will create a number of small applications, each
designed to highlight specific iOS features and to show you how to control or interact with those
features. If you combine the foundation you’ll gain through this book with your own creativity and
determination, and then add in the extensive and well-written documentation provided by Apple,
you’ll have everything you need to build your own professional iPhone and iPad applications.
Tip Dave, Jack, Jeff, and Fredrik have set up a forum for this book. It’s a great place to meet like-minded
folks, get your questions answered, and even answer other people’s questions. The forum is at
http://forum.learncocoa.org. Be sure to check it out!
What You Need
Before you can begin writing software for iOS, you’ll need a few items. For starters, you’ll need
an Intel-based Macintosh, running Lion (OS X 10.7) or later. Any recent Intel-based Macintosh
computer—laptop or desktop—should work just fine.
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