How to make UIPopoverPresentationController translucent for iOS 9

Question

I used IB to create a segue to represent another popover view.

I added code in prepareForSegueto remove the UIPopoverPresentationControllerDelegate for the initial controller.

And I set the presentation style:

func adaptivePresentationStyleForPresentationController(controller: UIPresentationController,
     traitCollection: UITraitCollection) -> UIModalPresentationStyle {
      return UIModalPresentationStyle.None
}

This gives me a nice standard popover.

However, I want to make a translucent popover.

I tried a couple of things:

• I set the background color to IB for "cleaning"
• I tried setting alpha in popover view

Answer 1

To have a view controller on top of another with transparency, you need to return UIModalPresentationStyle.OverCurrentContext.

Answer 2

: - , popover, 1.0, :

• popover

  class MyVC: UIViewController, UIPopoverPresentationControllerDelegate {
  

• alpha " segue" ( popover)

  override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
      let controller = segue.destination as! ISACGlossaryTVC
      controller.popoverPresentationController!.delegate = self
      self.view.alpha = 0.2;
  }
  

• popoverPresentationControllerDidDismissPopover reset - , pop-over

  func popoverPresentationControllerDidDismissPopover(_ popoverPresentationController: UIPopoverPresentationController) {
      self.view.alpha = 1.0;
  }