UIPopOverPresentationViewController from a Container ViewController

Question

I would like to present a PopOverPresentationVC from a ContainerVC (loaded from Storyboard). My code below : -

@IBAction func showPopOverVC(view: UIView){
  let embeddedVC: EmbeddedVC = instantantiateVC() // my personal helper method
  embeddedVC.popoverPresentationController?.sourceView = view
  embeddeVC.modalPresentationStyle = .popover
  present(embeddedVC, animated: true)
}

I keep on getting this error UIPopoverPresentationController should have a non-nil sourceView or barButtonItem set before the presentation occurs. , though I am setting the sourceView correctly. Any suggestions is much appreciated.

Funnily enough if I remove the line : -

embeddeVC.modalPresentationStyle = .popover

The modal presentation works fine.

Answer 1

So the answer is you need to set tht popover presentation properties in this order, if you reverse, the app would crash, crazy I say :)

embeddeVC.modalPresentationStyle = .popover
embeddedVC.popoverPresentationController?.sourceView = view