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 a Form with States and Data Binding

In this chapter, we're going to create a brand-new View that allows us to add our own recipe to our app. We'll create multiple input forms along with a dynamic list as we add ingredients to our recipe. In the header, we'll add a placeholder image that we can overwrite by choosing a photo from our library. Included in our form will be a picker much like the segmented picker we created earlier but using the more default look and feel that we are used to from a picker in iOS.

Once we've created our form, we'll save all the data so it can be referenced and favorited in our app, just like our mock data.

The following topics will be covered in this chapter:

  • Creating our recipe form View
  • Adding images from our library
  • Adding a multiline text input and country picker
  • Persisting our recipe