onContinueUserActivity not Called with Handoff & SwiftUI

Question

Created Dec ’20

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After following a tutorial about how to use SwiftUI in combination with Handoff I got this as result, but this isn't working for me. After trying a lot it seems like the OnContinueUserActivity is not called. The icon for handoff shows but once clicked on it, nothing happens. How can I fix this?

Code Block import SwiftUI
struct Board: View {
    @State var BoardId: String
        
    
    var body: some View {
        VStack{
            Text("Board: \(BoardId)")
        }.onContinueUserActivity("bundleIdentifier.Board", perform: { userActivity in
	print("Handoff starting...")
            if let Board = userActivity.userInfo?["Board"] as? String {
                // Load handoff page
                self.BoardId = Board
                
            }
            
            logUserActivity(userActivity, label: "on activity")
        })
        .userActivity("bundleIdentifier.Board", element: BoardId) {Board, activity in
            let bundleid = Bundle.main.bundleIdentifier ?? ""
                        
            activity.addUserInfoEntries(from: ["Board": BoardId,
                                                           "setby": bundleid])
            logUserActivity(activity, label: "activity")
        }
        
    }
}
struct Board_Previews: PreviewProvider {
    static var previews: some View {
        Board(BoardId: "NaN")
    }
}
func logUserActivity(_ activity: NSUserActivity, label: String = "") {
    print("\(label) TYPE = \(activity.activityType)")
    print("\(label) INFO = \(activity.userInfo ?? [:])")
}

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Answer 1

Juanzhongle OP

Mar ’22

for people come across this in the future, swiftui has newly implemented approach for receiving url from universal links(or, deep links) @main

struct SwiftUIAppLifeCycleApp: App {
  var body: some Scene {
    WindowGroup {
      ContentView()
        .onOpenURL { url in
          print("Received URL: \(url)")
        }
    }
  }
}

something like this. https://peterfriese.dev/posts/ultimate-guide-to-swiftui2-application-lifecycle/

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