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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
Author Profile Icon Giordano Scalzo
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

Applying a delay to a withAnimation function to create a sequence of animations

As we mentioned in the previous recipe, SwiftUI doesn't have a way to define a chain of animations yet, but this can be simulated using delay animations.

As mentioned in the previous recipe, there are two ways of defining an animation:

  • Using the .animation() view modifier
  • Using the withAnimation function

In this recipe, we'll see how to use the withAnimation function. We covered the .animation view modifier in the previous recipe, Applying a delay to a view modifier animation to create a sequence of animations.

Getting ready

This recipe doesn't need any external resources, so let's just create a SwiftUI project called DelayedAnimationsApp.

How to do it…

To illustrate the delay applied to the withAnimation function, we are going to implement an app that presents three text elements that appear and disappear in sequence when tapping on a button...

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