state-restoration

To persist navigation paths and scroll positions in SwiftUI, you need a state restoration infrastructure that saves UI state to a Codable model during background termination and restores it on launch. This requires a manager to automate saving and restoring across App lifecycle events.

Yes, you can use UserDefaults to save SwiftUI app state like tab selections and form drafts. State restoration infrastructure supports both file-based persistence and UserDefaults, allowing you to store a Codable AppState model to remember where the user left off.

The best way to remember where a user left off in a NavigationStack app is to implement a StateRestorationManager that tracks navigation paths. It applies optional modifiers to automate debounced autosaving, ensuring the UI state persists across background termination and launches.

Yes, state restoration works with SwiftUI TabView and ScrollView simultaneously. The infrastructure provides optional modifiers specifically designed to track and persist tab selections and scroll positions alongside navigation paths, covering common UI state persistence scenarios in one model.

To handle state migrations when updating your SwiftUI app's persisted state, use migration-friendly state versions. The Codable AppState model supports versioning for forward compatibility, ensuring existing users experience seamless state restoration when you release app updates.

You lose form drafts when your SwiftUI app is terminated in the background because the app lacks automated state preservation. Implementing a StateRestorationManager with debounced autosave and background save capabilities ensures form data persists across background termination.