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

45.2 An Introduction to the Intent Definition File

When a SiriKit extension such as a Messaging Extension is added to an iOS project, it makes use of a pre-defined system intent provided by SiriKit (in the case of a Messaging extension, for example, this might involve the INSendMessageIntent). In the case of Siri shortcuts, however, a custom intent is created and configured to fit with the requirements of the app. The key to creating a custom intent lies within the Intent Definition file.

An Intent Definition file can be added to an Xcode project by selecting the Xcode File -> New -> File… menu option and choosing the SiriKit Intent Definition File option from the Resource section of the template selection dialog.

Once created, Xcode provides an editor specifically for adding and configuring custom intents (in fact the editor may also be used to create customized variations of the system intents such as the Messaging, Workout and Payment intents). New intents are...