title: How to add text field in interactive notifications in iOS 8
body: <p>I am developing an app. That will have interactive notification.if app gets push notification and app is not running in foreground then user should be able to reply through notification in notification center.I want to add text field to get text from user and reply button to send that text to app.</p>
  
  <p>Any idea how to do? I am able to add buttons through UIMutableNotificationAction class.but could not find way to add text filed.</p>