Donate a NSUserActivity and restore it with SwiftUI

ContentView.swift

import SwiftUI

struct UserActivityView: View {
    @State private(set) var activityType: String? = nil
    @State private(set) var currentActivity: NSUserActivity? = nil
    
    var body: some View {
        Text(activityType ?? "No activity restored yet")
            .onContinueUserActivity("userActivity", perform: { userActivity in
                self.activityType = userActivity.activityType
            })
            .onAppear(perform: {
                donateActivity()
            })
    }
    
    func donateActivity() {
        self.currentActivity = NSUserActivity(activityType: "userActivity")
        self.currentActivity?.title = "title"
        self.currentActivity?.isEligibleForHandoff = true
        self.currentActivity?.isEligibleForPrediction = true
        self.currentActivity?.persistentIdentifier = UUID().uuidString
        self.currentActivity?.becomeCurrent()
    }
}

struct UserActivityView_Previews: PreviewProvider {
    static var previews: some View {
        UserActivityView()
    }
}

Hey! Thank you for this!