Read e-book online iOS 9 Programming Fundamentals with Swift: Swift, Xcode, and PDF

By Matt Neuburg

ISBN-10: 1491936746

ISBN-13: 9781491936740

Movement into iOS nine improvement by way of getting an organization seize of its basics, together with Xcode 7, the Cocoa contact framework, and Apple's rapid programming language. With this completely up to date advisor, you'll research Swift's object-oriented techniques, know the way to take advantage of Apple's improvement instruments, and notice how Cocoa presents the underlying performance iOS apps have to have.

- discover Swift's object-oriented innovations: variables and capabilities, scopes and namespaces, item forms and instances
- get to grips with integrated rapid forms corresponding to numbers, strings, levels, tuples, Optionals, arrays, and dictionaries
- how one can claim, instantiate, and customise rapid item types—enums, structs, and classes
- notice strong speedy positive factors akin to protocols and generics
- travel the lifecycle of an Xcode venture from inception to App Store
- Create app interfaces with nibs and the nib editor, Interface Builder
- comprehend Cocoa's event-driven version and its significant layout styles and features
- learn the way rapid communicates with Cocoa's C and Objective-C APIs

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Extra resources for iOS 9 Programming Fundamentals with Swift: Swift, Xcode, and Cocoa Basics

Example text

I have merely described the type of thing a Dog would be if I had one. To get an actual Dog, I have to make one. 14 | Chapter 1: The Architecture of Swift Figure 1-1. Making an instance and calling an instance method The process of making an actual Dog object whose type is the Dog class is the process of instantiating Dog. The result is a new object — a Dog instance. In Swift, instances can be created by using the object type’s name as a function name and calling the function. This involves using parentheses.

Swift itself comes with a few useful object types, such as String and Int; you’ll also import UIKit, which includes a huge number of object types, all of which spring to life in your program. You didn’t create any of those object types, so to learn to use them, you consult the published APIs, also known as the documentation. Apple’s own Cocoa documentation consists largely of pages where each page lists and describes the properties and methods supplied by one object type. For example, to know what messages you can send to an NSString instance, you’d start by studying the NSString class documentation.

So Swift has three kinds of object type: classes, structs, and enums. I like to refer to these as the three flavors of object type. Exactly how they differ from one another will emerge in due course. But they are all very definitely object types, and their similarities to one another are far stronger than their differences. For now, just bear in mind that these three flavors exist. (The fact that a struct or enum is an object type in Swift will surprise you particularly if you know Objective-C.

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iOS 9 Programming Fundamentals with Swift: Swift, Xcode, and Cocoa Basics by Matt Neuburg

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