Detect when a UIViewController has been dismissed by the remote's menu button in tvOS

Question

I am working on a Apple TV app (tvOS) where the first view controller open a second view controller via a segue. When I choose an option on the second view controller it execute an unwind action on the first view controller.

My problem is when I press the remote menu button, the second view controller modal dismiss automatically and I find no way to execute an action on the first view controller or to be notified.

How can I detect when a controller opened via a segue has been dissmissed by the remote's menu button ?

┌─────────────┐               ┌─────────────┐   
│ First View  │    ┌─────┐    │ Modal View  ├──┐
│ Controller  ├────┤segue├────▶ Controller  │  │
└─────────────┘    └─────┘    └─────────────┘  │
                ┌────────────┐      ┌───────┐  │
                │ Modal Auto │      │ Menu  │  │
  Action ??  ◀──┤  Dismiss   ◀──────│Button │◀─┘
                └────────────┘      └───────┘   

Answer 1

I believe this is what you're trying to accomplish

// Put this in your FirstViewController
@IBAction func returnToFirstViewController(segue:UIStoryboardSegue) {
  print("This is called after  modal is dismissed by menu button on Siri Remote")
}

// Put this in your SecondViewController
override func viewDidLoad() {
  super.viewDidLoad()  

  // Do any additional setup after loading the view.

  let tapRecognizer = UITapGestureRecognizer(target: self, action: Selector("handleMenuPress:"))
  tapRecognizer.allowedPressTypes = [UIPressType.Menu.rawValue]
  view.addGestureRecognizer(tapRecognizer)
}

func handleMenuPress(recognizer: UITapGestureRecognizer) {
  self.performSegueWithIdentifier("YourUnwindSegueIdentifier", sender: nil)
}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
  if segue.identifier == "YourUnwindSegueIdentifier" {
     // do any cleanup activities here if you need
  }
}

Now you have to make some storyboard connections. Go into your SecondViewController and ctrl-drag from your Controller icon to your Exit icon and you'll see a drop down like this:

Select the method to connect it and then you'll see an Unwind Segue in your SecondViewController in the storyboard. Give that segue the identifier name of "YourUnwindSegueIdentifier" (so my sample code will work - or use whatever name you want). Build and run and this should get you what you need.