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

46.3 Preparing the Project

Once the ShortcutDemo project has been downloaded and opened within Xcode, some configuration changes need to be made before the app can be compiled and run. Begin by selecting the ShortcutDemo target at the top of the project navigator panel (marked A in Figure 46-1) followed by the ShortcutDemo (iOS) entry in the Targets list (B). Select the Signing & Capabilities tab (C) and choose your developer ID from the Team menu in the Signing section (D):

Figure 46-1

Next, click the “+ Capabilities” button (E) and double-click on the App Groups entry in the resulting dialog to add the capability to the project. Once added, click on the ‘+’ button located beneath the list of App Groups (as indicated in Figure 46-2):

Figure 46-2

In the resulting panel, provide a name for the app group container that will be unique to your project (for example group.com.<your domain name>.shortcutdemo). Once a name has been...