iPhone Open Application
Development: Write Native Objective-
C Applications for the iPhone by
Jonathan Zdziarski
Great Book, Just Know What You Are Looking For
Certain technologies bring out everyones hidden geek, and iPhone did the
moment it was released. Even though Apple created iPhone as a closed
device, tens of thousands of developers bought them with the express
purpose of designing and running third-party software. In this clear and
concise book, veteran hacker Jonathan Zdziarski -- one of the original
hackers of the iPhone -- explains the iPhones native environment and how
you can build software for this device using its Objective-C, C, and C++
development frameworks. iPhone Open Application Development walks
you through the iPhones native development environment, offers an
overview of the Objective-C language youll use with it, and supplies
background for the iPhone operating system. You also get detailed recipes

and working examples for everyones favorite iPhone features -- graphics
and audio programming, interfaces for adding multitouch functionality to
games, the use of hardware sensors, and the devices vast user interface
kit. This book explains: How to access the iPhones underlying operating
system The makeup of an iPhone application How to get the open source
tool chain running on your desktop The iPhones core user interface
framework, which is heavily tied to major application-level functions Using
the many touted iPhone features such as multitouch, hardware sensors,
and gestures Intercepting and handling event notifications for many
iPhone-related events Raw video surfaces and 3D transformations that
take you deeper into advanced graphics on the iPhone How to record and
play simple sounds and intercept sound events Advanced digital audio
output using Apples new Audio Toolbox framework Advanced user
interfacecomponents such as section lists, keyboards, and image
manipulation The Appendix includes a compendium of miscellaneous code
examples for cool application features, such as using the camera and
creating a CoverFlow(R)-like album browser. This book is a true hackers
book, designed for the millions of users who have run third party
applications on their iPhone, but its concepts and code examples have
shown to be remarkably similar to Apples official SDK, making this book a
valuable resource for both camps. Any programmer can use this book to
write applications with the same spectacular effects that made the device
an immediate hit, and impress users just as much as the official iPhone
software does. That programmer can easily be you.
Personal Review: iPhone Open Application Development: Write
Native Objective-C Applications for the iPhone by Jonathan
Zdziarski
Coming from a PHP world, Object-Oriented Programming can be difficult
to wrap your mind around. Thankfully the introduction chapters here aren't
too far overhead. OOP concepts are a must-have for modern
programmers, and this book makes no contentions to teach you Objective-
C directly. However, the author has included some good references to
where you can take beginner OOP courses.
Through the first year of iPhone's being and well into the pre-2.0 and
post-2.0 environment, this book proves invaluable for its chapters on the
UIKit, a large part of the API that is used to build graphical apps on the
device. Extensive coverage of UIKit classes, as well as undocumented 1.0
enumerations for certain components makes this a frequent reader when
you are getting started.
The examples within the chapters cover just about anything you can think
of doing with the UI, within reason. You will be able to confidently build
apps that rival the ones included by Apple itself. Chapters on audio and
graphics subsystems are as complete as could be at the time, and offer
some examples that would be useful for game developers.

Quirks about the Ojective-C language are briefly discussed, then
wonderfully mastered and repeated frequently to drive the point home.
Object delegates, high-level messging, inherritence; you will get a full
course of modern OOP goodness.
By the time you are done working with the chapter's examples you will feel
like a million bucks. The iPhone platform is now your own lump of clay for
you to mold and shape to your will. Couple this with some in-depth cocoa
publications and you have the all the keys needed to swing the doors wide
open. Feel smart, be informed and discover the tremendously versatile API
that is iPhone OS.
The 2.0 version of Apple software makes some important changes, but for
the most part, this book is still very useful. Great for beginners -- even if
you don't know OOP, you can learn from examples on the 'Net and be way
very soon.
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