Learning Cocoa with Objective-C: Developing for the Mac and by Paris Buttfield-Addison, Jonathon Manning

By Paris Buttfield-Addison, Jonathon Manning

Paris Buttfield-Addison, Jonathon Manning, "Learning Cocoa with Objective-C: constructing for the Mac and iOS App shops, third Edition"
2013 | ISBN-10: 1449318495 | writer: O’Reilly Media | PDF | 322 pages | eleven + 6 MB

Get on top of things on Cocoa and Objective-C, and begin constructing functions at the iOS and OS X structures. in the event you don’t have adventure with Apple’s developer instruments, no challenge! From object-oriented programming to storing app info in iCloud, this publication covers every thing you must construct apps for the iPhone, iPad, and Mac.

You’ll the way to paintings with the Xcode IDE, Objective-C’s starting place library, and different developer instruments reminiscent of occasion package framework and center Animation. alongside the way in which, you’ll construct instance tasks, together with an easy Objective-C program, a customized view, an easy video participant program, and an app that screens calendar occasions for the user.
Learn the applying lifestyles cycle on OS X and iOS
Work with the user-interface method in Cocoa and Cocoa Touch
Use AV starting place to show video and audio
Build apps that permit clients create, edit, and paintings with documents
Store facts in the neighborhood with the dossier process, or at the community with iCloud
Display lists or collections of knowledge with desk perspectives and assortment views
Interact with the surface global with center position and center Motion
Use blocks and operation queues for multiprocessing

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In Objective-C, setter and getter method names must follow an established pattern. For example, given an instance variable named planeName, the setter method would be named setPlaneName: and the getter method would be named planeName. 26 | Chapter 2: Object-Oriented Programming with Objective-C These naming conventions are used by the Objective-C runtime, and are therefore semi-enforced. If you try to set a property named plane, for example, the Objective-C compiler will generate code that calls a setPlane: method; if this method doesn’t exist, your application will throw an exception.

Change the button’s Title to Hello! You can also change the button’s title by double-clicking it in the interface. Our simple interface is now complete (Figure 1-10). The only thing left is to connect it to code. Developing a Simple Objective-C Application | 15 Figure 1-10. The completed interface Connecting the Code Applications aren’t just interfaces—as a developer, you also need to write code. To work with the interface you’ve designed, you need to create connections between your code and your interface.

H. h. 2. Create the button’s outlet. Hold down the Control key and drag from the button into the space between the @interface and @end lines in the code. A pop-up window will appear. Leave everything as the default, but change the Name to helloButton. Click Connect. A new line of code will appear: Xcode has created the connection for you, which appears in your code as a property in your class. 3. Create the button’s action. Hold down the Control key, and again drag from the button into the space between the @interface and @end lines.

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