Close app after calling smscomposetask

Question

I tried using the following code but its not working as the app closes immediately without even showing compose message task:

private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            SmsComposeTask smsComposeTask = new SmsComposeTask();
            smsComposeTask.To = number;
            smsComposeTask.Body = "I'll call you back.";
            smsComposeTask.Show();
            Application.Current.Terminate();
        }

Is there a way to close app after this button is clicked and sms task has been completed?

Answer 1

i added a 500ms delay between show task and terminate. the app went tombstone in this time and couldn't execute terminate statement.

smsComposeTask.Show();
 System.Threading.Thread.Sleep(500);
 Application.Current.Terminate();