Download e-book for kindle: Cocoa and Objective-C: Up and Running: Foundations of Mac, by Scott Stevenson

February 27, 2018 | Programming | By admin | 0 Comments

By Scott Stevenson

ISBN-10: 1449391362

ISBN-13: 9781449391362

Construct stable purposes for Mac OS X, iPhone, and iPod contact, whether you've uncomplicated programming abilities or years of programming event. With this e-book, you'll tips on how to use Apple's Cocoa framework and the Objective-C language via step by step tutorials, hands-on workouts, transparent examples, and sound suggestion from a Cocoa expert.

Cocoa and Objective-C: Up and Running deals simply enough conception to floor you, then indicates you ways to exploit Apple's quick improvement instruments -- Xcode and Interface Builder -- to enhance Cocoa purposes, deal with consumer interplay, create nice UIs, and extra. You'll quick achieve the event you must advance refined Apple software program, even if you're just a little new to programming or simply new to this platform.

Get a brief hands-on journey of simple programming talents with the C language
* the way to use Interface Builder to fast layout and prototype your application's consumer interface
* commence utilizing Objective-C by means of developing items and studying reminiscence management
* know about the Model-View-Controller (MVC) approach to sharing facts among objects
* comprehend the basis worth sessions, Cocoa's powerful API for storing universal facts types
* familiarize yourself with Apple's photos frameworks, and how one can make customized perspectives with AppKit

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Extra resources for Cocoa and Objective-C: Up and Running: Foundations of Mac, iPhone, and iPod touch programming

Sample text

In fact, Objective-C isn’t just based on C; it’s all of C plus some other stuff. Programmers like to say it’s a strict superset of C. So before you start writing Cocoa apps, it helps to learn some C. I’m not going to lead you into the outer limits of the language; you’ll see just enough to get started. If you already know C, you can safely skim this chapter. If this seems confusing, just remember that Objective-C is the language that defines how you format your code—the grammar. Cocoa defines what you can make your code do—the overall vocabulary.

A new programmer, but a programmer just the same. c:8: error: expected ';' before '}' token We’ll look at how to fix these sort of errors soon enough, but for now, just go back and compare your code, one line at a time, to the code in the book. If you still can’t get it to work, you can download a working version from the companion website mentioned in the Preface. Example: FirstProgram | 33 Scope When speaking out loud, you sometime use scope to imply what you mean without explaining it in detail.

Here are some examples: int count; count = numberOfPeople(); float totalCost; totalCost = dollarsAndCents(); 26 | Chapter 2: Thinking in Code: Basic C I declared count as an int because the numberOfPeople() function returns an int. You can also create functions that input values. In the following sample, I have a function that multiplies the input value by 10, and returns the result. In C, the asterisk character multiplies two numbers: int timesTen (int input) { return input * 10; } Here’s how I can call the function, providing input and capturing the output: int outputValue = timesTen( 18 ); When you’re capturing the result of a function, give the variable a type that matches the return type of the function.

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Cocoa and Objective-C: Up and Running: Foundations of Mac, iPhone, and iPod touch programming by Scott Stevenson


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