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An iOS Developer's Guide to SwiftUI

You're reading from   An iOS Developer's Guide to SwiftUI Design and build beautiful apps quickly and easily with minimum code

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Product type Paperback
Published in May 2024
Publisher Packt
ISBN-13 9781801813624
Length 446 pages
Edition 1st Edition
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Author (1):
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Michele Fadda Michele Fadda
Author Profile Icon Michele Fadda
Michele Fadda
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Table of Contents (25) Chapters Close

Preface 1. Part 1: Simple Views
2. Chapter 1: Exploring the Environment – Xcode, Playgrounds, and SwiftUI FREE CHAPTER 3. Chapter 2: Adding Basic UI Elements and Designing Layouts 4. Chapter 3: Adding Interactivity to a SwiftUI View 5. Part 2: Scrollable Views
6. Chapter 4: Iterating Views, Scroll Views, FocusState, Lists, and Scroll View Reader 7. Chapter 5: The Art of Displaying Grids 8. Part 3: SwiftUI Navigation
9. Chapter 6: Tab Bars and Modal View Presentation 10. Chapter 7: All About Navigation 11. Part 4: Graphics and Animation
12. Chapter 8: Creating Custom Graphics 13. Chapter 9: An Introduction to Animations in SwiftUI 14. Part 5: App Architecture
15. Chapter 10: App Architecture and SwiftUI Part I: Practical Tools 16. Chapter 11: App Architecture and SwiftUI Part II – the Theory 17. Part 6: Beyond Basics
18. Chapter 12: Persistence with Core Data 19. Chapter 13: Modern Structured Concurrency 20. Chapter 14: An Introduction to SwiftData 21. Chapter 15: Consuming REST Services in SwiftUI 22. Chapter 16: Exploring the Apple Vision Pro 23. Index 24. Other Books You May Enjoy

Using NavigationPath to control the navigation stack

Separating NavigationLink from the destination simplifies creating deep links and also jumping to arbitrary destinations or pushing or popping several views at once.

With NavigationStack, you can attach multiple navigation destinations to handle different types of data. In this case, your destination should be expressed with NavigationPath, rather than an array of data of a specific type.

The following example does exactly that, using two instances of .navigationDestination: one to handle a destination view to handle an Int parameter, and the other to handle a String one. Notice that @State var presentedValues is initialized to NavigationPath(), and that value is bound to the initializer’s NavigationStack(path:) parameter.

Technically, NavigationPath is a type-erased list of data representing the content of a navigation stack, meaning that it can contain elements of different types.

NavigationPath as a type-erased...

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