By Jeff LaMarche, David Mark, Jack Nutting
The authors of the bestselling starting iPhone three improvement are again, with an identical very good fabric thoroughly up to date for iOS four and written from the floor up utilizing the newest model of Apple's Xcode three. All resource code has been up to date to take advantage of the newest Xcode templates and present APIs, and all-new screenshots express Xcode three in action.
Beginning iPhone four improvement is an entire path in iOS improvement. You’ll grasp innovations that paintings on iPhone, iPad, and iPod contact. we begin with the fundamentals, displaying you the way to obtain and set up the instruments you'll want, and the way to create your first uncomplicated program. subsequent you’ll discover ways to combine all of the interface components iOS clients have come to understand and love, reminiscent of buttons, switches, pickers, toolbars, and sliders. You’ll grasp numerous layout styles, from the easiest unmarried view to complicated hierarchical drill-downs. The complicated artwork of desk construction might be demystified, and you’ll examine recommendations to save lots of and retrieve your information utilizing SQLite, iPhone’s integrated database administration procedure and middle facts, the normal for endurance that Apple delivered to iOS with the discharge of SDK 3.
And there’s even more! You’ll discover ways to draw utilizing Quartz second and OpenGL ES, upload multitouch gestural aid (pinches and swipes) on your functions, and paintings with the digital camera, photograph library, accelerometer, and integrated GPS. You’ll realize the superb issues of program personal tastes and how one can localize your apps for a number of languages. You'll additionally methods to use the hot concurrency APIs integrated in iOS four, and make strong multithreaded functions utilizing Grand significant Dispatch.
* The iPhone four replace to the best-selling and so much instructed booklet for Cocoa contact developers
* Written in an available, easy-to-follow style
* choked with helpful suggestions and methods that will help you develop into an iOS professional
<h3>What you’ll learn</h3> * every little thing you want to recognize to improve your personal best-selling iPhone and iPad apps
* top practices for optimizing your code and offering nice consumer studies
* tips on how to create “universal” apps for either iPhone and iPad
<h3>Who this booklet is for</h3>
someone who desires to begin constructing for iPhone, iPad, and iPod contact.
Read or Download Beginning iPhone 4 Development: Exploring the iOS SDK PDF
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Additional resources for Beginning iPhone 4 Development: Exploring the iOS SDK
When the user taps either of the buttons, the label’s text changes. This may seem like a rather simplistic example, but it demonstrates the key concepts of implementing user interaction in your iOS applications. Figure 3–1. The simple two-button application we will build in this chapter 33 34 CHAPTER 3: Handling Basic Interaction The Model-View-Controller Paradigm Before diving in, a bit of theory is in order. The designers of Cocoa Touch were guided by a concept called Model-View-Controller (MVC), which is a very logical way of dividing the code that makes up a GUI-based application.
29 30 CHAPTER 2: Appeasing the Tiki Gods Figure 2–13. Selecting how to add the file to the project. It’s a good idea to copy the added item into the project. When you add any common kind of file to your project, Xcode knows what to do with it, and as a result, this image file will now get compiled into our application automatically without requiring you to do anything further. png image into the project, which will result in the image getting built into our application bundle. The next thing we need to do is to specify that this particular image should be used as our application’s icon.
Since we’re here, why don’t we double-click the word yourcompany in the existing bundle identifier and change that to apress. The value at the end of the string is a special code that will get replaced with your application’s name when your application is built. This allows you to tie your application’s bundle identifier to its name. Once that change is made, compile and run. When the simulator has finished launching, press the button with the white square to go home, and check out your snazzy new icon.