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)

More views and controls (iOS 14+)

Let's now take a look at some new SwiftUI views and controls introduced in iOS 14. We will look at the ProgressView, Label, ColorPicker, Link, TextEditor, and Menu views. We use ProgressViews to show the degree of completion of a task. There are two types of ProgressViews; indeterminate progress views show a spinning circle till a task is completed, and determinate progress views show a bar that gets filled up to show the progress of a task.

Labels provide an easy way to display a label and icon. ColorPickers expand when clicked and present the user with a wide range of colors to select from. TextEditor provides a multiline interface for the user to input text.

Finally, Menus present a list of items the user can chose from. Each item should perform a specific action.

Getting ready

Create a new SwiftUI app called MoreViewsAndControls.

How to do it…

Let's now implement all the new views and controls in the ContentView...