Book Image

Mastering iOS 14 Programming - Fourth Edition

By : Mario Eguiluz Alebicto, Chris Barker, Donny Wals
Book Image

Mastering iOS 14 Programming - Fourth Edition

By: Mario Eguiluz Alebicto, Chris Barker, Donny Wals

Overview of this book

Mastering iOS 14 development isn’t a straightforward task, but this book can help you do just that. With the help of Swift 5.3, you’ll not only learn how to program for iOS 14 but also be able to write efficient, readable, and maintainable Swift code that reflects industry best practices. This updated fourth edition of the iOS 14 book will help you to build apps and get to grips with real-world app development flow. You’ll find detailed background information and practical examples that will help you get hands-on with using iOS 14's new features. The book also contains examples that highlight the language changes in Swift 5.3. As you advance through the chapters, you'll see how to apply Dark Mode to your app, understand lists and tables, and use animations effectively. You’ll then create your code using generics, protocols, and extensions and focus on using Core Data, before progressing to perform network calls and update your storage and UI with the help of sample projects. Toward the end, you'll make your apps smarter using machine learning, streamline the flow of your code with the Combine framework, and amaze users by using Vision framework and ARKit 4.0 features. By the end of this iOS development book, you’ll be able to build apps that harness advanced techniques and make the best use of iOS 14’s features.
Table of Contents (22 chapters)

Working with lists in SwiftUI

Back at WWDC 2019, Apple unveiled to the world a brand-new UI framework called SwiftUI. Built from the ground up, SwiftUI is a powerful alternative to UIKit and AppKit, offering developers the ability to write code using declarative syntax.

In this section, we are going to cover what SwiftUI has to offer in terms of generating lists and what we may need to do going forward should we require the use of anything that isn't available to use just yet.

Creating our first SwiftUI project

For this, we're going to need to create a new single view app, the same as before, but only this time we'll need to select SwiftUI for our user interface, as highlighted in the following screenshot:

Figure 3.21 – New SwiftUI project

If you're unfamiliar with SwiftUI, you'll notice a couple of differences. You'll no longer have a ViewController.swift file – this has been replaced with ContentView.swift...