Book Image

SwiftUI Essentials – iOS 14 Edition

By : Neil Smyth
Book Image

SwiftUI Essentials – iOS 14 Edition

By: Neil Smyth

Overview of this book

Do you want to create iOS apps with SwiftUI, Xcode 12, and Swift 5.3, and want to publish it on the app store? This book helps you achieve these skills with a step-by-step approach. This course first walks you through the steps necessary to set up an iOS development environment together and introduces Swift Playgrounds to learn and experiment with Swift—specifically, the Swift 5.3 programming language. After establishing key concepts of SwiftUI and project architecture, this course provides a guided tour of Xcode in SwiftUI development mode. The book also covers the creation of custom SwiftUI views and explains how these views are combined to create user interface layouts, including the use of stacks, frames, and forms. One of the more important skills you’ll learn is how to integrate SwiftUI views into existing UIKit-based projects and explain the integration of UIKit code into SwiftUI. Finally, the book explains how to package up a completed app and upload it to the app store for publication. Along the way, the topics covered in the book are put into practice through detailed tutorials, the source code for which is also available for download. By the end of this course, you will be able to build your own apps for iOS 14 using SwiftUI and publish it on the app store. The code files for the book can be found here: https://www.ebookfrenzy.com/retail/swiftui-ios14/
Table of Contents (56 chapters)
56
Index

45.3 Automatically Generated Classes

The purpose of the Intent Definition file is to allow Xcode to generate a set of classes that will be used when implementing the shortcut extension. Assuming that a custom intent named OrderFood was added to the definition file, the following classes would be automatically generated by Xcode:

OrderFoodIntent – The intent object that encapsulates all of the parameters declared in the definition file. An instance of this class will be passed by Siri to the handler(), handle() and confirm() methods of the extension intent handler configured with the appropriate parameter values for the current shortcut.

OrderIntentHandling – Defines the protocol to which the intent handler must conform in order to be able to fully handle food ordering intents.

OrderIntentResponse – A class encapsulating the response codes, templates and parameters declared for the intent in the Intent Definition file. The intent...