Does anyone know if UIPopoverPresentationController
can be used to present popovers on iPhones? Wondering if Apple added this feature on iOS 8 in their attempt to create a more unified presentation controllers for iPad and iPhone.
Not sure if its OK to ask/answer questions from Beta. I will remove it in that case.
You can override the default adaptive behaviour (UIModalPresentationFullScreen
in compact horizontal environment, i.e. iPhone) using the
adaptivePresentationStyleForPresentationController:
method available through UIPopoverPresentationController.delegate
.
UIPresentationController
uses this method to ask the new presentation style to use, which in your case, simply returning UIModalPresentationNone
will cause the UIPopoverPresentationController
to render as a popover instead of fullscreen.
Here's an example of the popover using a segue setup in storyboard from a UIBarButtonItem
to "present modally" a UIViewController
class SomeViewController: UIViewController, UIPopoverPresentationControllerDelegate {
// override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) { // swift < 3.0
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "PopoverSegue" {
if let controller = segue.destinationViewController as? UIViewController {
controller.popoverPresentationController.delegate = self
controller.preferredContentSize = CGSize(width: 320, height: 186)
}
}
}
// MARK: UIPopoverPresentationControllerDelegate
//func adaptivePresentationStyleForPresentationController(controller: UIPresentationController!) -> UIModalPresentationStyle { // swift < 3.0
func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentationStyle {
// Return no adaptive presentation style, use default presentation behaviour
return .None
}
}
This trick was mentioned in WWDC 2014 session 214 "View Controller Advancement in iOS8" (36:30)