In a text field, I need to detect user hit Enter (return) key. The delegate methods are completely different from the ones in UITextField so not really sure what to do ... I use swift 2.3 atm.
When the user hits the enter key the delegate method
func controlTextDidEndEditing(_ aNotification : Notification)
This is the Swift 3 syntax. Type
cont and use code completion to get the Swift 2 syntax.