NavigationStack for iOS 14 and 15 implemented on top of UINavigationController. Backport just bridges to existing SwiftUI API on iOS 16 or newer.

• NavigationPath is fully supported including codable representation
• View.navigationDestination() and View.navigationDestination(isPresented:destination:)
• NavigationLink with value
• for now tested only on iOS

Installation via Swift Package Manager is supported. Use https://github.com/lm/navigation-stack-backport as depedency URL. For more information how to add dependency in Xcode see https://developer.apple.com/documentation/xcode/adding-package-dependencies-to-your-app or add dependency in your Package.swift .package(url: "https://github.com/lm/navigation-stack-backport", from: "1.0.0")

Usage is the same as SwiftUI's NavigationStack on iOS 16, just prefix NavigationStack and other types with NavigationStackBackport. or import exact types from NavigationStackBackport package. For view modifiers introduced in iOS 16 use backport. prefix like .backport.navigationDestination(for: …).

import NavigationStackBackport

struct ContentView: View {
	@State private var navigationPath = NavigationStackBackport.NavigationPath()

	var body: some View {
			NavigationStackBackport.NavigationStack(path: $navigationPath) {
				Button("Push") {
					navigationPath.append("Hello World")
				}
				.backport.navigationDestination(for: String.self) { value in
					Image(systemName: "globe")
						.navigationTitle(value) // use available SwiftUI's modifiers
				}
			}
	}
}

For more examples see the TestApp within this repository.