Book Image

Learn SwiftUI

By : Chris Barker
Book Image

Learn SwiftUI

By: Chris Barker

Overview of this book

SwiftUI is the new and powerful interface toolkit that lets you design and build iOS, iPadOS, and macOS apps using declarative syntax. It is a powerful way to develop the UI elements of applications, which would normally be tightly coupled to application logic. Learn SwiftUI will get you up to speed with the framework and cross-device UI development in no time. Complete with detailed explanations and practical examples, this easy-to-follow guide will teach you the fundamentals of the SwiftUI toolkit. You'll learn how to build a powerful iOS and iPadOS application that can be reused for deployment on watchOS. As you progress, you'll delve into UI and unit testing in iOS apps, along with learning how to test your SwiftUI code for multiple devices. The book will also show you how to integrate SwiftUI features such as data binding and network requests into your current application logic. By the end of this book, you will have learned how to build a cross-device application using the SwiftUI framework and Swift programming.
Table of Contents (17 chapters)

Basic transitions

Let's start by taking a look at how the simplest of transitions can make a big difference in SwiftUI. In this section, we'll cover when and how to use the transition modifier along with the various options available to us.

Invoking a basic transition

We'll again create a SwiftUI playground in order to test some of these examples out (see Chapter 13, Basic Animation in Views, on how we created a playground for use in SwiftUI).

We'll start by creating a simple button with a text view that will sit just beneath it:

VStack {
Button("Basic Transitions") {
// Add logic here...
Text("Learn SwiftUI")

Nice and simple to start with, but our main intention here...