Book Image

Swift Essentials - Second Edition

By : Alex Blewitt
Book Image

Swift Essentials - Second Edition

By: Alex Blewitt

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

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Table of Contents (17 chapters)
Swift Essentials Second Edition
Swift Essentials Second Edition
Credits
Credits
About the Author
About the Author
Acknowledgments
Acknowledgments
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Exploring Swift
Exploring Swift
Open source Swift
Getting started with Swift
Conditional logic
Iteration
Functions
Command-line Swift
Summary
2
Playing with Swift
Playing with Swift
Getting started with playgrounds
Displaying objects with Quick Look
Advanced techniques
Playgrounds and documentation
Limitations of playgrounds
Summary
3
Creating an iOS Swift App
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
Storyboard Applications with Swift and iOS
Storyboard Applications with Swift and iOS
Storyboards, scenes, and segues
Adding a navigation controller
Swift and storyboards
Using Auto Layout
Summary
5
Creating Custom Views in Swift
Creating Custom Views in Swift
An overview of UIView
Creating new views with Interface Builder
Creating new views by subclassing UIView
Custom graphics with drawRect
Custom graphics with layers
Summary
6
Parsing Networked Data
Parsing Networked Data
Loading data from URLs
Parsing JSON
Parsing XML
Direct network connections
Summary
7
Building a Repository Browser
Building a Repository Browser
An overview of the GitHub API
Repository browser project
Creating the client
Accessing repositories from view controllers
Summary
8
Adding Watch Support
Adding Watch Support
Watch applications
Creating watch interfaces
Responding to user interaction
Best practice for watch applications
Summary
References to Swift-related Websites, Blogs, and Notable Twitter Users
References to Swift-related Websites, Blogs, and Notable Twitter Users
Language
Twitter users
Blogs and tutorial sites
Meetups
Afterword
Index
Index

Chapter 3. Creating an iOS Swift App

After the release of Xcode 6 in 2014, it has been possible to build Swift applications for iOS and OS X and submit them to the App Store for publication. This chapter will present both a single view application and a master-detail application, and use these to explain the concepts behind iOS applications, as well as introduce classes in Swift.

This chapter will present the following topics:

  • How iOS applications are structured

  • Single-view iOS applications

  • Creating classes in Swift

  • Protocols and enums in Swift

  • Using XCTest to test Swift code

  • Master-detail iOS applications

  • The AppDelegate and ViewController classes

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