Book Image

An iOS Developer's Guide to SwiftUI

By : Michele Fadda
Book Image

An iOS Developer's Guide to SwiftUI

By: Michele Fadda

Overview of this book

– SwiftUI transforms Apple Platform app development with intuitive Swift code for seamless UI design. – Explore SwiftUI's declarative programming: define what the app should look like and do, while the OS handles the heavy lifting. – Hands-on approach covers SwiftUI fundamentals and often-omitted parts in introductory guides. – Progress from creating views and modifiers to intricate, responsive UIs and advanced techniques for complex apps. – Focus on new features in asynchronous programming and architecture patterns for efficient, modern app design. – Learn UIKit and SwiftUI integration, plus how to run tests for SwiftUI applications. – Gain confidence to harness SwiftUI's full potential for building professional-grade apps across Apple devices.
Table of Contents (25 chapters)
Free Chapter
1
Part 1: Simple Views
5
Part 2: Scrollable Views
8
Part 3: SwiftUI Navigation
11
Part 4: Graphics and Animation
14
Part 5: App Architecture
17
Part 6: Beyond Basics

Persistence with Core Data

In this chapter, I will introduce Core Data in SwiftUI. Core Data is a persistency framework for Apple systems. We will also briefly talk about persistence from a more general perspective. As Core Data was introduced in 2003 and has constantly evolved since then, it is not possible to completely cover this topic; it would require a large book just by itself. This chapter will be just an introduction to this persistence framework.

In this chapter, we will define persistency, and then we will move on to explain what Core Data is and how it is structured. We will then explain how to use Core Data within SwiftUI and offer guidance on the practical use of Core Data in Xcode. Finally, we will discuss CloudKit, a framework that easily allows you to store persistent data on the cloud.

In this chapter, we’re going to cover the following main topics:

  • What is persistency?
  • What is Core Data?
  • Understanding Core Data framework classes
  • Using...