Learn SwiftUI

Get to grips with Apple's new SwiftUI framework for creating robust UIs for iOS and iPadOS using Swift programming

Key Features

• Use SwiftUI for building dynamic apps for Apple devices from scratch
• Understand declarative syntax in cross-platform development and how states work within SwiftUI
• Learn to develop watchOS apps by reusing SwiftUI code

Book Description

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.

What you will learn

• Explore the fundamentals of SwiftUI and compare it with existing UI frameworks
• Write SwiftUI syntax and understand what should and shouldn't be included in SwiftUI's layer
• Add text and images to a SwiftUI view and decorate them using SwiftUI's modifiers
• Create basic forms, and use camera and photo library functions to add images to them
• Understand the core concepts of Maps in iOS apps and add a MapView in SwiftUI
• Design extensions within your existing apps to run them on watchOS
• Handle networking calls in SwiftUI to retrieve data from external sources

Who this book is for

This SwiftUI book helps any mobile app developer looking to understand the fundamentals of the new SwiftUI framework along with the benefits of cross-device development. A solid understanding of iOS and macOS app development, along with some knowledge of the Swift programming language, will be beneficial. Basic programming knowledge is essential to grasp the concepts covered in the book effectively.

Table of Contents

1. Getting Started with SwiftUI
2. Understanding Declarative Syntax
3. Building Layout and Structure
4. Creating Your First Application
5. Understanding Controls, Views and Lists
6. Working with Navigation in SwiftUI
7. Creating a Form with States and Data Binding
8. Networking and Linking to Your Existing App Logic
9. Maps & Location Services
10. Updating for iPad with NavigationViewStyle
11. SwiftUI on watchOS
12. SwiftUI versus UIKit
13. Basic Animation in Views
14. Animations in Transitions
15. Testing in SwiftUI

Chris Barker is a senior iOS developer and tech lead for fashion retailer N Brown (JD Williams, SimplyBe, Jacamo), where he heads the iOS team, building apps for their major brands. Having now worked in the IT industry for over 22 years, Chris started his career developing .NET applications for online retailer (now BT Shop). In 2014, he made his move into mobile app development with digital agency Openshadow based in MediaCityUK. Here, he worked on mobile apps for clients such as Louis Vuitton and L'Oréal Paris. Chris often attends and speaks at his local iOS developer meetup NSManchester.

Most recently, Chris attended Malaga Mobile in Spain, where he spoke about his passion for accessibility in mobile apps. Over the past 2 years, Chris has been a regular speaker at CodeMobile Developer Conference and plans to return in the future.