title: How can I use the selected data from a UIDatePicker in another view in IOS8?
body: <p>I'm very new to IOS 8 and programming in general.  I would like to populate a UIButton's label text with the value from a UIDatePicker.  When the user presses the button, a popover appears with a date picker.  I have created a new view controller imbedded in a navigation controller for my date picker.  They are connected using a popover segue.  My question is once the user selects a date, how can I transmit this information back to the original view controller to show the value on the button label.  Any help would be greatly appreciated.  </p>