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Learn SwiftUI

You're reading from   Learn SwiftUI An introductory guide to creating intuitive cross-platform user interfaces using Swift 5

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Product type Paperback
Published in Apr 2020
Publisher Packt
ISBN-13 9781839215421
Length 316 pages
Edition 1st Edition
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Author (1):
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Chris Barker Chris Barker
Author Profile Icon Chris Barker
Chris Barker
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Table of Contents (17) Chapters Close

Preface 1. Getting Started with SwiftUI 2. Understanding Declarative Syntax FREE CHAPTER 3. Building Layout and Structure 4. Creating Your First Application 5. Understanding Controls, Views, and Lists 6. Working with Navigation in SwiftUI 7. Creating a Form with States and Data Binding 8. Networking and Linking to Your Existing App Logic 9. Maps and Location Services 10. Updating for iPad with NavigationViewStyle 11. SwiftUI on watchOS 12. SwiftUI versus UIKit 13. Basic Animation in Views 14. Animations in Transitions 15. Testing in SwiftUI 16. Other Books You May Enjoy

What is declarative syntax?

In this section, you'll learn what declarative syntax is and what immediate benefit it offers for writing clean code. You'll also learn about its counterpart imperative syntax in order to gain understanding from both paradigms.

The declarative syntax is a programming paradigm that allows you to write code in a more formal and procedural way. In essence, the declarative syntax is a way of describing the code you want to write, without having to worry about how it's going to be implemented.

The following is an example of declarative syntax if it was said in spoken language:

“I would like a cup of tea, please"

This is more of a statement than written logic as we are asking for something rather than being concerned about how we are going to get it.

Let's take our first look at SwitUI syntax. Here, we have created a Text Label...

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Learn SwiftUI
Published in: Apr 2020
Publisher: Packt
ISBN-13: 9781839215421
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