Chapter 31
Working with AnimatableModifier and LibraryContentProvider

Earlier, you learned how to animate a shape using Animatable and AnimatableData. In this chapter, we will take it a step further and show you how to animate a view using another protocol called AnimatableModifier. Additionally, I will guide you through a new feature of SwiftUI that makes it easier for developers to share custom views in the View library, enhancing reusability. Later, I will demonstrate how to integrate the progress ring view into the View library for seamless reuse. As a sneak peek, you can refer to Figure 1 or watch this demo video (https://link.appcoda.com/librarycontentprovider) to see it in action.

Figure 1. Using a custom view in the View library
Figure 1. Using a custom view in the View library

Understanding AnimatableModifier

Let's begin by examining the AnimatableModifier protocol. As the name suggests, AnimatableModifier is a view modifier that conforms to the Animatable protocol. This allows for powerful animation of value changes for various types of views.

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