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)

Previewing a layout at different dynamic type sizes

You may want to improve the accessibility features on your app to appeal to a wider variety of users. This means making sure the design looks good in different possible font sizes that users might prefer. SwiftUI previews are perfect for such use cases. They allow you to immediately preview how new content will look in different dynamic type sizes.

In this recipe, we will create an app that previews some news article titles using different dynamic type sizes.

Getting ready

Create a new SwiftUI app called DynamicTypeSizesPreview. Then, download the images for this chapter from GitHub: https://github.com/PacktPublishing/SwiftUI-Cookbook-2nd-Edition/tree/main/Resources/Chapter04/recipe2.

How to do it

A news article should contain an image, some text, and a description. First, let's create a model that describes a news article. Then let's create a view that shows how each article should be displayed, and finally...