Book Image

Swift Essentials

By : Alex Blewitt, Bandlem Limited
Book Image

Swift Essentials

By: Alex Blewitt, Bandlem Limited

Overview of this book

Whether you are a seasoned Objective-C developer or new to the Xcode platform, Swift Essentials will provide you with all you need to know to get started with the language. Prior experience with iOS development is not necessary, but will be helpful to get the most out of the book.

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Swift Essentials
Alex Blewitt | Bandlem Limited
Dec, 2014 | 3 hours 48 minutes
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Table of Contents (10 chapters)
Preface
Preface
What this book covers
What you need for this book
Who this book is for
Trademarks
Conventions
Reader feedback
Customer support
Free Chapter
1
1. Exploring Swift
1. Exploring Swift
Getting started with Swift
Conditional logic
Iteration
Functions
Command-line Swift
Summary
2
2. Playing with Swift
2. Playing with Swift
Getting started with playgrounds
Displaying objects with QuickLook
Advanced techniques
Playgrounds and documentation
Limitations of playgrounds
Summary
3
3. Creating an iOS Swift App
3. Creating an iOS Swift App
Understanding iOS applications
Creating a single view iOS application
Swift classes, protocols, and enums
Creating a master-detail iOS application
Summary
4
4. Storyboard Applications with Swift and iOS
4. Storyboard Applications with Swift and iOS
Storyboards, scenes, and segues
Adding a navigation controller
Swift and storyboards
Using Auto Layout
Summary
5
5. Creating Custom Views in Swift
5. Creating Custom Views in Swift
An overview of UIView
Creating new views with interface builder
Creating views by subclassing UIView
Custom graphics with drawRect
Custom graphics with layers
Summary
6
6. Parsing Networked Data
6. Parsing Networked Data
Loading data from URLs
Parsing JSON
Parsing XML
Direct network connections
Summary
7
7. Building a Repository Browser
7. Building a Repository Browser
An overview of the GitHub API
The RepositoryBrowser project
Creating the client
Accessing repositories from view controllers
Summary
8
A. Appendix
A. Appendix
Language
Twitter users
Blogs and tutorial sites
Meetups
Afterword
9
Index
Index

The RepositoryBrowser project

The client is a Master Detail application called RepositoryBrowser. This sets up a template that can be used on a large device with a split view controller, or a navigator view controller on a small device. In addition, actions to add entries are created.

To build the APIs necessary to display content, several utility classes are needed:

  • The URITemplate class processes URI templates with a set of key/value pairs

  • The Threads class allows functions to be run in the background or in the main thread

  • The NSURLExtensions class provides easy parsing JSON objects from a URL

  • The DictionaryExtensions class provides a means of creating a Swift dictionary from a JSON object

  • The GitHubAPI class provides access to the GitHub remote API

URI templates

URI templates are defined in RFC 6570 at https://tools.ietf.org/html/rfc6570. They can be used to replace sequences of text surrounded by {} in a URI. Although GitHub's API uses optional values {?...}, the example client presented in...

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