Chapter 8
Understanding State Management in SwiftUI
IN THIS CHAPTER
Understanding how a property wrapper works
Working with state variables
Binding state variables
Managing state from external objects
Sharing objects
Accessing built-in environment variables
If you’ve read this book from the beginning and arrived at this chapter, you should have a good understanding of how SwiftUI works. SwiftUI builds your user interface (UI) declaratively, and it relies heavily on the concept of state variables to keep its UI updated. Besides @State, there are a number of other mechanisms for state management in SwiftUI. These mechanisms are the focus of this chapter.
Using a Property Wrapper
SwiftUI 5.1 introduced a new feature to the language: the property wrapper. A property wrapper is a generic data structure that has read/write capabilities, while at the same time providing and enforcing additional ...
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