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Learn SwiftUI

You're reading from   Learn SwiftUI An introductory guide to creating intuitive cross-platform user interfaces using Swift 5

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Product type Paperback
Published in Apr 2020
Publisher Packt
ISBN-13 9781839215421
Length 316 pages
Edition 1st Edition
Languages
Tools
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Author (1):
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Chris Barker Chris Barker
Author Profile Icon Chris Barker
Chris Barker
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Toc

Table of Contents (17) Chapters Close

Preface 1. Getting Started with SwiftUI 2. Understanding Declarative Syntax FREE CHAPTER 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 and 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 16. Other Books You May Enjoy

Persisting our recipe

In this section, we'll bundle up all the data we've received from our form and persist it down to our app so we can save the recipe and later view it via our main list or favorites. First, we'll look at how to convert the image we've taken into data so that we can successfully persist it to our UserDefaults and retrieve it again when necessary. We'll also cover how to use a fallback image if there is a problem accessing the image we've saved.

Once we've covered that, we'll use a helper function similar to the one we used for our favorites to both retrieve and save our recipe.

Persisting our image

First off, we'll need to make some tweaks to our RecipeModel...

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