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)

Creating our first pin

Now that we've successfully implemented MapKit directly into our SwiftUI View, let's get a bit creative by adding some pins (or annotations, as they are officially known) to our RecipeMapView. We'll start by adding basic annotations to our map using some mock data that we'll generate for our automatic preview canvas and then we'll look at how we can customize each annotation to show details of the recipes we have for that specific area.

Adding your first annotation (pin)

We'll start by heading on over to MapHelper.swift, where we'll create a new class called AnnotationPin. This class will be a custom subclass of MKAnnotation. We're creating a subclass as we&apos...