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)

Understanding Controls, Views, and Lists

User interaction plays a big part in all apps; from pressing buttons to gestures, images to switches, Apple takes care of it. While creating interactions programmatically has always been an available option, taking advantage of out-of-the-box system controls has never been easier. Along with the help of Apple's Human Interface Guidelines, SwiftUI makes this even easier.

In this chapter, we'll learn how to add buttons, images, and segmented pickers to our app—we'll see how easy it is to decorate our controls with the simple use of modifiers. We'll also look at creating custom views that allow us to reuse a specific View in multiple areas of our app, without the need for code duplication. We'll go deeper into the automatic previewer and see how we can reuse mock data that has been previously created to work...