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)

Piecing it all together

Now that we've created our MapView, learned how to add pins (annotations), and learned how to customize our annotations too, we can integrate this straight into our recipe app.

In this section, we'll hook up our actual recipes to our MapView, placing an annotation on each country with a recipe. Then we'll use a custom annotation to list the country name and the number of recipes we have for that country.

We'll then take a look at the call out accessory view and how we can add a button that we'll be able to use to filter our ContentView list based on the country selected.

Finally, we'll add another navigation bar button item in order to clear our filter.

Updating our Helper classes