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  • Book Overview & Buying Swift Essentials (Second Edition)
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Swift Essentials (Second Edition)

Swift Essentials (Second Edition) - Second Edition

By : Alex Blewitt
5 (3)
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Swift Essentials (Second Edition)

Swift Essentials (Second Edition)

5 (3)
By: Alex Blewitt
Buy this Book

Overview of this book

Swift was considered one of the biggest innovations last year, and certainly with Swift 2 announced at WWDC in 2015, this segment of the developer space will continue to be hot and dominating. This is a fast-paced guide to provide an overview of Swift programming and then walks you through in detail how to write iOS applications. Progress through chapters on custom views, networking, parsing and build a complete application as a Git repository, all by using Swift as the core language
Table of Contents (11 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Trademarks
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Conventions
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Reader feedback
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Customer support
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1
1. Exploring Swift
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1. Exploring Swift
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Open source Swift
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Getting started with Swift
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Conditional logic
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Iteration
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Functions
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Command-line Swift
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Summary
2
2. Playing with Swift
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2. Playing with Swift
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Getting started with playgrounds
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Displaying objects with Quick Look
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Advanced techniques
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Playgrounds and documentation
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Limitations of playgrounds
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Summary
3
3. Creating an iOS Swift App
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3. Creating an iOS Swift App
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Understanding iOS applications
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Creating a single-view iOS application
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Swift classes, protocols, and enums
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Creating a master-detail iOS application
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Summary
4
4. Storyboard Applications with Swift and iOS
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4. Storyboard Applications with Swift and iOS
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Storyboards, scenes, and segues
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Adding a navigation controller
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Swift and storyboards
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Using Auto Layout
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Summary
5
5. Creating Custom Views in Swift
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5. Creating Custom Views in Swift
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An overview of UIView
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Creating new views with Interface Builder
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Creating new views by subclassing UIView
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Custom graphics with drawRect
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Custom graphics with layers
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Summary
6
6. Parsing Networked Data
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6. Parsing Networked Data
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Loading data from URLs
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Parsing JSON
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Parsing XML
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Direct network connections
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Summary
7
7. Building a Repository Browser
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7. Building a Repository Browser
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An overview of the GitHub API
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Repository browser project
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Creating the client
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Accessing repositories from view controllers
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Summary
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8. Adding Watch Support
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8. Adding Watch Support
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Watch applications
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Creating watch interfaces
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Responding to user interaction
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Best practice for watch applications
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Summary
9
A. References to Swift-related Websites, Blogs, and Notable Twitter Users
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A. References to Swift-related Websites, Blogs, and Notable Twitter Users
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Language
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Twitter users
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Blogs and tutorial sites
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Meetups
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Afterword
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Index
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Index

Displaying objects with Quick Look

The playground timeline can display objects as well as numbers and simple strings. It is possible to load and view images in a playground using classes, such as UIImage (or NSImage on OS X). These are known as Quick Look supported objects, and by default include:

  • String (attributed and unattributed)
  • Views
  • Class and struct types (members are shown)
  • Colors

Tip

It is possible to build support for custom-based types into Swift by implementing a debugQuickLookObject method that returns a graphical view of the data.

Showing colored labels

To show a colored label, a color needs to be obtained first. When building against iOS, this will be UIColor; but when building against OS X, it will be NSColor. The methods and types are largely equivalent between the two, but this chapter will demonstrate using iOS types.

A color can be acquired with an initializer or using one of the predefined colors that are exposed in Swift using methods, as follows:

import UIKit // AppKit for...
Visually different images
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Tech Concepts
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Programming languages
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Swift Essentials (Second Edition)
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