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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
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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

Limitations of playgrounds

Although playgrounds can be very powerful for interacting with code, there are some limitations that are worth being aware of. There is no debugging support in the playground. It is not possible to add a breakpoint and use the debugger and find out what the values are. Given that the UI allows tracking values—and that it's very easy to add new lines with just the value to be tracked—this is not much of a hardship. Other limitations of playgrounds include:

  • Only the simulator can be used for the execution of iOS-based playgrounds. This prevents the use of hardware-specific features that might only be present on a device.
  • The performance of playground scripts is mainly driven based on how many lines are executed and how much output is saved by the debugger. It should not be used to test the performance of performance-sensitive code.
  • Although the playground is well suited to present user interface components, it cannot be used for user input.
  • Anything...
CONTINUE READING
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Tech Concepts
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Programming languages
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Swift Essentials
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