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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 view modifier animation to create a sequence of animations

In the current version of SwiftUI, there is no way of joining different animations together to create a sequence of animations.

This will surely be fixed in a later SwiftUI version, but at the moment, we can implement a sequence of animations using a delay.

As you should know, 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.animation() view modifier, and we'll cover the withAnimation function in the next recipe, Applying a delay to a withAnimation function to create a sequence of animations.

Getting ready

Let's create a SwiftUI project in Xcode called DelayedAnimationsApp.

How to do it…

In our app, we will create a sequence of three animations on a rectangle:

  • A change of the vertical offset
  • A change of scale
  • A 3D rotation...
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