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SwiftUI Cookbook

You're reading from   SwiftUI Cookbook Discover solutions and best practices to tackle the most common problems while building SwiftUI apps

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Product type Paperback
Published in Oct 2020
Publisher Packt
ISBN-13 9781838981860
Length 614 pages
Edition 1st Edition
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Authors (2):
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Edgar Nzokwe Edgar Nzokwe
Author Profile Icon Edgar Nzokwe
Edgar Nzokwe
Giordano Scalzo Giordano Scalzo
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Giordano Scalzo
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Toc

Table of Contents (15) 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: Viewing while Building with SwiftUI Preview 4. Chapter 4: Creating New Components and Grouping Views in Container Views 5. Chapter 5: Presenting Extra Information to the User 6. Chapter 6: Drawing with SwiftUI 7. Chapter 7: Animating with SwiftUI 8. Chapter 8: Driving SwiftUI with Data 9. Chapter 9: Driving SwiftUI with Combine 10. Chapter 10: Handling Authentication and Firebase with SwiftUI 11. Chapter 11: Handling Core Data in SwiftUI 12. Chapter 12: Cross-Platform SwiftUI 13. Chapter 13: SwiftUI Tips and Tricks 14. Other Books You May Enjoy

Presenting multiple alerts

We have reviewed the process for displaying single alerts in a view. What happens if we have multiple alerts in a single view? When multiple alerts are attached to a view, only one of them works. To create a view with multiple alerts that work, we need to make sure each alert is tied to a different view.

Getting ready

Create a SwiftUI app named PresentingMultipleAlerts.

How to do it

We will create a VStack that holds two structs, with a .alert() modifier attached to each struct. We will use a button click and a Toggle struct to display alerts. The steps are as follows:

  1. Create the @State variable that will trigger the alerts. The variables should be declared immediately below the ContentView struct declaration and before the body variable:
    @State private var showTwoButtonsAlert = false
    @State private var showSimpleAlert = false
  2. Replace the Text struct with a VStack to hold the other structs. We will add the following:
    VStack{
    //The rest...
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