nsusernotificationcenter

问题 In our app we are displaying Notification Center notifications in alert style. Displaying notification works fine, as well as we get callback when user interacts with the notification either by clicking on notification or by clicking on Action button. However, we are interested in getting a callback or event when user clicks on Other button in notification. I have seen MAC OS does this when it displays its updates available dialog. Refer to this image for clarification about OS X update