Book Image

SwiftUI Cookbook - Second Edition

By : Giordano Scalzo, Edgar Nzokwe
Book Image

SwiftUI Cookbook - Second Edition

By: Giordano Scalzo, Edgar Nzokwe

Overview of this book

SwiftUI provides an innovative and simple way to build beautiful user interfaces (UIs) for all Apple platforms, from iOS and macOS through to watchOS and tvOS, using the Swift programming language. In this recipe-based cookbook, you’ll cover the foundations of SwiftUI as well as the new SwiftUI 3 features introduced in iOS 15 and explore a range of essential techniques and concepts that will help you through the development process. The cookbook begins by explaining how to use basic SwiftUI components. Once you’ve learned the core concepts of UI development, such as Views, Controls, Lists, and ScrollViews, using practical implementations in Swift, you'll advance to adding useful features to SwiftUI using drawings, built-in shapes, animations, and transitions. 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 by 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 encountered when building SwiftUI apps.
Table of Contents (17 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 https://unsplash.com/, so special thanks to jf-brou, Kieran White, and Camilo Fierro.

Getting ready

Let's start by creating a new SwiftUI project called ImageApp.

How to do it…

Let's add some images to our SwiftUI project and introduce the modifiers used to style them. The steps are given here:

  1. Replace the initial Text view with a VStack.
  2. Download the project images from the GitHub link at https://github.com/PacktPublishing/SwiftUI-Cookbook-2nd-Edition/tree/main/Resources/Chapter01/recipe3.
  3. Drag and drop the downloaded images for this recipe into the project's Assets.xcassets (or Assets) folder, as shown in the following screenshot:

    Figure 1.6 – Assets.xcassets folder in Xcode

  4. Add an Image view to VStack...