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)

Adding a multiline text input and country picker

At the time of writing this book, there is no native way of creating a multiline Text View using only SwiftUI components. In order to achieve this, we'll have to tap into our old friend UIKit. Much like the helper we created in the previous section, we'll basically create a wrapper around UITextView (which in turn allows multiline support) and bring it back as a SwiftUI View.

As previously mentioned, this is a little out of scope for this book, but in a later chapter, we'll cover this in a little more detail for those of you who are familiar with UIKit's exciting components and are interested in using them.

Implementing a UITextView wrapper

First of all,...