Sams Teach Yourself Xcode 4 in 24 Hours
John Ray, William Ray
Format: PDF / Kindle (mobi) / ePub
In just 24 sessions of one hour or less, Sams Teach Yourself Xcode 4 in 24 Hours will help you achieve breakthrough productivity with Apple’s new Xcode 4.3+ development environment for OS X and iOS devices. Every lesson introduces new concepts and builds on what you’ve already learned, giving you a rock-solid foundation for real-world success!
Step-by-step instructions carefully walk you through the most common Xcode 4 development tasks.
Quizzes and Exercises at the end of each chapter help you test your knowledge.
By the Way notes present interesting information related to the discussion.
Did You Know? tips offer advice or show you easier ways to perform tasks.
Watch Out! cautions alert you to possible problems and give you advice on how to avoid them.
Printed in full color–figures and code appear as they do in Xcode 4.3+
Master the MVC design pattern at the heart of iOS and OS X development
Use Xcode project templates to get a head start on advanced application features
Efficiently use the Xcode Code Editor and get fast, contextually-aware answers with the built-in help system
Use iOS Storyboards to visually describe an application’s workflow
Get started with Core Data to simplify data management and data-driven user interfaces
Use frameworks and libraries to package functionality and promote time-saving code reuse
Use Git and Subversion source control for managing distributed projects
Prepare Unit tests and use the Xcode debugger to keep your projects error free
Package your apps for the App Store
Use the command-line Xcode tools for scripting and build automation
framework for this purpose in this hour of the book. Stop and think about this for a minute, though. If the purpose of a framework is to encapsulate reusable, independently updatable routines, is it really a big advantage to hide it privately inside an application bundle, where it cannot be reused and where it cannot be updated? Usually, the answer is no. In fact, usually the answer is that if an embedded framework will work, linking the code directly as a part of your application works better.
that breakpoint by left-clicking it once. It turns a dim bluish-gray to indicate that that it is currently disabled. Click Continue Program Execution to get things moving again. 6. Continue to delete points until you get to the last item in the list. Xcode should let you delete all of them except that last one without pausing in the debugger any more. 7. Try to delete the last point. The iOS simulator pauses, and Xcode comes to the front, paused at the BetterList remove method. If you examine
invocation that built iBLine.app in build mode. You can find the iPhone Distribution Cert value by using Keychain Access and looking in your Login keychain certificates for a certificate starting with the words iPhone Distribution. The search for this key is slightly smart, and it is sufficient to specify only a portion of the name of the certificate, as long as that portion is unique among all of your certificates. For example, if you have only one distribution certificate, it is sufficient to
lost. Although you can certainly move your code around and make it into a mess, you can always apply the indentation rules again, as follows: 1. Within the sample project, add tabs and spaces in front of some of the lines in applicationDidFinishLaunching. 2. Delete the indentation from some of the lines, as well. 3. After you have made the method sufficiently ugly in appearance, select the lines of code. 4. Choose Editor, Structure, Re-Indent (Control+I). Xcode reformats the code, and all is
object-oriented development in this single hour, we can make sure that you understand enough to develop fairly complex apps. To provide you with the information you need to be successful in OS X and iOS development, this hour concentrates on fundamentals—the core concepts that are used in examples in this book and sample projects you’ll find in Apple’s documentation. The approach in this hour is to introduce you to a programming topic in general terms. Before beginning, let’s look a bit closer