Book Image

SwiftUI Cookbook

By : Giordano Scalzo, Edgar Nzokwe
Book Image

SwiftUI Cookbook

By: Giordano Scalzo, Edgar Nzokwe

Overview of this book

SwiftUI is an innovative and simple way to build beautiful user interfaces (UIs) for all Apple platforms, right from iOS and macOS through to watchOS and tvOS, using the Swift programming language. In this recipe-based book, you’ll work with SwiftUI and explore a range of essential techniques and concepts that will help you through the development process. The recipes cover the foundations of SwiftUI as well as the new SwiftUI 2.0 features introduced in iOS 14. Other recipes will help you to make some of the new SwiftUI 2.0 components backward-compatible with iOS 13, such as the Map View or the Sign in with Apple View. The cookbook begins by explaining how to use basic SwiftUI components. Then, you’ll learn the core concepts of UI development such as Views, Controls, Lists, and ScrollViews using practical implementation in Swift. By learning drawings, built-in shapes, and adding animations and transitions, you’ll discover how to add useful features to the SwiftUI. When you’re ready, you’ll understand how to integrate SwiftUI with exciting new components in the Apple development ecosystem, such as Combine for managing events and Core Data for managing app data. Finally, you’ll write iOS, macOS, and watchOS apps while sharing the same SwiftUI codebase. By the end of this SwiftUI book, you'll have discovered a range of simple, direct solutions to common problems found in building SwiftUI apps.
Table of Contents (15 chapters)

Using images

In this recipe, we will learn how to add an image to a view, use an already existing UIImage, put an image in a frame, and use modifiers to present beautiful images. The images in this section were obtained from Special thanks to jf-brou, Kieran White, and Camilo Fierro.

Getting ready

Create a new SwiftUI project named ImageApp.

How to do it…

  1. Replace the initial Text view with a Vstack.
  2. Download the project images from the GitHub link at
  3. Drag and drop the downloaded images for this recipe into the project's Assets.xcassets folder, as shown in the following screenshot:

    Figure 1.6 – Assets.xcassets folder in Xcode

  4. Add an Image view to VStack:

    Observe the result in the canvas preview.

  5. Add a .resizable() modifier to the image...