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

SwiftData and SwiftUI

SwiftData introduces a declarative Swift-native API. It allows developers to work with data persistence in iOS apps seamlessly, and like SwiftUI follows a purely declarative paradigm.

Let’s take a look at the features of SwiftData:

  • SwiftData can perform automatic migrations of the underlying model data, allowing you to maintain a consistent state for the data after application updates. It simplifies the boilerplate and error-prone code associated with data migrations.
  • SwiftData has live updates. One of its main features is the live updates to SwiftUI views when the underlying data changes, without the need for manual refreshes. This is consistent with SwiftUI design and is facilitated through the @Query property wrapper, which we will cover later in this chapter in the Fetching data section.
  • SwiftData requires minimal code and has a straightforward setup. It leverages Swift’s modern structured concurrency features and does not...