Presenting a view controller with the new UIPresentationController

PresentationController.m

// Present the view controller using the popover style.
myPopoverViewController.modalPresentationStyle = UIModalPresentationPopover;
[self presentViewController:myPopoverViewController animated: YES completion: nil];
 
// Get the popover presentation controller and configure it.
UIPopoverPresentationController *presentationController = [myPopoverViewController popoverPresentationController];
presentationController.permittedArrowDirections = UIPopoverArrowDirectionLeft | UIPopoverArrowDirectionRight;
presentationController.sourceView = myView;
presentationController.sourceRect = sourceRect;