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

An Introduction to Animations in SwiftUI

There are quite a few ways to animate content in SwiftUI. SwiftUI animations have a declarative syntax, meaning you describe what results you want to achieve, and SwiftUI does the heavy lifting. Animations in SwiftUI tend to be state-driven (i.e., they depend on state changes, making them reactive and easy to reason about).

SwiftUI provides pre-made modifiers such as animation, transition, and scaleEffect, which allow the effective application of animation effects to views. It is generally more straightforward than UIKit, as you don’t need to meddle with an imperative syntax or manage synchronization manually, nor do you need a deep understanding of layer properties.

SwiftUI offers a good balance of flexibility and control using implicit and explicit animations. In contrast, more complex custom animations can be achieved using animatable properties and modifiers, which will require additional effort.

On the other hand, to this...