Swift UIAlertController -> ActionSheet iPad iOS8 Crashes

Question

currently i\'m running into big trouble with my ActionSheet. On iPhone it works great, but on iPad it only crashes

I create a new project with only one button

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Answer 1

To follow up on Nate Cook's answer. If your button is a UIBarButtonItem it may be necessary to perform casting on sender.

if let popoverController = alertController.popoverPresentationController {
    popoverController.barButtonItem = sender as! UIBarButtonItem
}
self.presentViewController(alertController, animated: true, completion: nil)