This backport is now available as Backport.AppStorage, in a single Backports library, with a LOT more additions. This should simply my efforts and allow me and others to contribute more backports in the near future. SwiftUI Backports

DefaultStorage

Also available as a part of my SwiftUI+ Collection – just add it to Xcode 13+

A dynamic property wrapper that behaves similarly to AppStorage in iOS 14+, providing auto-updating access to UserDefaults.

Example

@DefaultStorage("name") private var name: String

Installation

The code is packaged as a framework. You can install manually (by copying the files in the Sources directory) or using Swift Package Manager (preferred)

To install using Swift Package Manager, add this to the dependencies section of your Package.swift file:

.package(url: "https://github.com/SwiftUI-Plus/DefaultStorage.git", .upToNextMinor(from: "1.0.0"))

Other Packages

If you want easy access to this and more packages, add the following collection to your Xcode 13+ configuration:

https://benkau.com/packages.json