How Can I set UIBarButtonItem as anchor of a popover in IOS?
In iOS 8 & 9, the presentPopoverFromBarButtonItem:permittedArrowDirections:animated: method is deprecated. You'll want to set the barButtonItem property on the view controller's popoverPresentationController property.
let popover = UIViewController()popover.modalPresentationStyle = .Popoverif let presentation = popover.popoverPresentationController { presentation.barButtonItem = navigationItem.rightBarButtonItem}presentViewController(popover, animated: true, completion: nil)