Book Image

Swift Cookbook. - Second Edition

By : Keith Moon, Chris Barker
Book Image

Swift Cookbook. - Second Edition

By: Keith Moon, Chris Barker

Overview of this book

Swift is an exciting, multi-platform, general-purpose programming language, and with this book, you'll explore the features of its latest version, Swift 5.3. The book begins with an introduction to the basic building blocks of Swift 5.3, its syntax, and the functionalities of Swift constructs. You’ll then discover how Swift Playgrounds provide an ideal platform to write, execute, and debug your Swift code. As you advance through the chapters, the book will show you how to bundle variables into tuples or sets, order your data with an array, store key-value pairs with dictionaries, and use property observers. You’ll also get to grips with the decision-making and control structures in Swift, examine advanced features such as generics and operators, and explore functionalities outside of the standard library. Once you’ve learned how to build iOS applications using UIKit, you'll find out how to use Swift for server-side programming, run Swift on Linux, and investigate Vapor. Finally, you'll discover some of the newest features of Swift 5.3 using SwiftUI and Combine to build adaptive and reactive applications, and find out how to use Swift to build and integrate machine learning models along with Apple’s Vision Framework. By the end of this Swift book, you'll have discovered solutions to boost your productivity while developing code using Swift 5.3.
Table of Contents (14 chapters)
12
About Packt

Multi-page playgrounds

We've discussed how playgrounds can be a great tool for exploring APIs and experimenting with UIs. However, playgrounds can also be used for documenting APIs, and providing rich, linkable content. Swift Playgrounds provides support for rich text formatting in comments and multiple pages of content, and we will explore those features in this recipe.

Getting ready

We will start with the playground we used in the last recipe, which displayed our custom BarChart view. You can get the playground, called EmbeddedSources.playground, from the GitHub repository for this book at https://github.com/PacktPublishing/Swift-Cookbook-Second-Edition/tree/master/Chapter07.

We will use our BarChart view to display the price in US dollars of three different cryptocurrencies over a 6-month period between January 2020 and June 2020. We can show each type of currency on a different playground page.

If you want to know more about cryptocurrencies, you can watch this explanatory video...