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  • Book Overview & Buying Swift Essentials
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Swift Essentials

Swift Essentials

By : Alex Blewitt
4.8 (4)
Buy this Book
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Swift Essentials

Swift Essentials

4.8 (4)
By: Alex Blewitt
Buy this Book

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.
Table of Contents (10 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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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 QuickLook
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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
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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 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
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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
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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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The RepositoryBrowser 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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A. Appendix
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A. Appendix
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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

Chapter 2. Playing with Swift

Xcode ships with both a command line interpreter (covered in Chapter 1, Exploring Swift) and a graphical interface called playground that can be used to prototype and test Swift code snippets. Code typed into the playground is compiled and executed interactively, which permits a fluid style of development. In addition, the user interface can present a graphical view of variables as well as a timeline, which can show how loops are executed. Finally, playgrounds can mix and match code and documentation, leading to the possibility of providing example code as playgrounds and using playgrounds to learn how to use existing APIs and frameworks.

This chapter will present the following topics:

  • How to create a playground
  • Displaying values in the timeline
  • Presenting objects with Quick Look
  • Running asynchronous code
  • Using playground live documentation
  • Generating playgrounds with Markdown and AsciiDoc
  • Limitations of playgrounds
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Tech Concepts
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Programming languages
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Swift Essentials
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