check message sent successfully from UIActivityViewController Swiftui

Question

I would like to count the absolute frequency of sharing events (weather temp) when the app goes into the background (after sent mail or sms, share text) i would like to use dictionary ◦ Key (number of days relative to Today, Tomorrow = 1, Day after Tomorrow = 2, etc.) ◦ Value: Number of times this day has already been shared. print thsi dictionary in console.

I don't understand the status of the application, I don't know where I have the moment when I can add +1 to the dictionary, because the weather message has been sent

struct MyView: View {
    @State private var isSharePresented: Bool = false
    @Environment(\.scenePhase) var scenePhase
    @State var dictionary = [0: 0,1:0, 2: 0, 3: 0, 4: 0, 5:0, 6:0, 7:0]
    
    var body: some View {
        VStack{
            //
            ForEach(0..<8) { index in
                HStack{
                    HStack{
                        Text("\(String(format: "%.1f",
                                daily.temperature2MMin[index])) °C ").padding(10)
                        Spacer()
                        Text("\(String(format: "%.1f",
                                daily.temperature2MMax[index])) °C ").padding(10)
                    }
                    .onTapGesture {
                        self.isSharePresented = true
                    }
                    .sheet(isPresented: $isSharePresented, onDismiss: {
                        print("Dismiss")
                    }, content: {
                        ActivityViewController(activityItems: ["Weather Forecast \nDay: \(daily.time[index]), \n Min temp: \(daily.temperature2MMin[index]), \n Max temp: \(daily.temperature2MMax[index])"])
//
                        self.dictionary[index]! += 1
                        print(dictionary)
                    })
                    
                }.padding(.horizontal, 20)
            }
        }.onAppear() {
            WeatherService().getDate { (results) in
                self.results = results
                print("Api Done")
            }
    }
}


struct MyView_Previews: PreviewProvider {
    static var previews: some View {
        MyView()
    }
}







struct ActivityViewController: UIViewControllerRepresentable {

    var activityItems: [Any]
    var applicationActivities: [UIActivity]? = nil

    func makeUIViewController(context: UIViewControllerRepresentableContext<ActivityViewController>) -> UIActivityViewController {
        let controller = UIActivityViewController(activityItems: activityItems, applicationActivities: applicationActivities)
        print("load sheet")
        return controller
    }
    
    
    func updateUIViewController(_ uiViewController: UIActivityViewController, context: UIViewControllerRepresentableContext<ActivityViewController>) {
    print("done sheet")
    }

}