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SwiftUI Cookbook

You're reading from   SwiftUI Cookbook A guide to solving the most common problems and learning best practices while building SwiftUI apps

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Product type Paperback
Published in Nov 2021
Publisher Packt
ISBN-13 9781803234458
Length 616 pages
Edition 2nd Edition
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Authors (2):
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Giordano Scalzo Giordano Scalzo
Author Profile Icon Giordano Scalzo
Giordano Scalzo
Edgar Nzokwe Edgar Nzokwe
Author Profile Icon Edgar Nzokwe
Edgar Nzokwe
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Toc

Table of Contents (17) Chapters Close

Preface 1. Chapter 1: Using the Basic SwiftUI Views and Controls 2. Chapter 2: Going Beyond the Single Component with Lists and Scroll Views FREE CHAPTER 3. Chapter 3: Exploring Advanced Components 4. Chapter 4: Viewing while Building with SwiftUI Preview 5. Chapter 5: Creating New Components and Grouping Views with Container Views 6. Chapter 6: Presenting Extra Information to the User 7. Chapter 7: Drawing with SwiftUI 8. Chapter 8: Animating with SwiftUI 9. Chapter 9: Driving SwiftUI with Data 10. Chapter 10: Driving SwiftUI with Combine 11. Chapter 11: SwiftUI Concurrency with async await 12. Chapter 12: Handling Authentication and Firebase with SwiftUI 13. Chapter 13: Handling Core Data in SwiftUI 14. Chapter 14: Creating Cross-Platform Apps with SwiftUI 15. Chapter 15: SwiftUI Tips and Tricks 16. Other Books You May Enjoy

Deleting Core Data objects from a SwiftUI view

How can you delete objects from a Core Data repository? Removing objects is almost as important as adding them. In this recipe, we'll learn how to integrate the Core Data delete options into a SwiftUI app.

Getting ready

Create a SwiftUI app called DeleteContacts.

Before we start this recipe, complete Steps 1 to 7 of the Showing Core Data objects with @FetchRequest recipe. Then, you can complete this recipe.

How to do it…

We are going to reuse part of the code provided in the Showing Core Data objects with @FetchRequest recipe. Please refer to that recipe if you want to find out more.

Let's get started:

  1. In the ContentView struct, add the list of contacts via the @FetchRequest property wrapper:
    struct ContentView: View {
        @FetchRequest(
            sortDescriptors: [
                ...
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