I have a popover controller in my app for iPad and Mac (using mac catalyst) and I'm trying to figure out how to grow the height of the popover when it's already presented. I've been searching everywhere on how to do this but everything I find is about setting the size before presenting but not after.
While the pop-up is presenting, there's a button in it that should grow the height by 100-150 pixels, but I can not figure out how
Can anyone please help me with this? Thank you in advance!
Here's my popover presenting code:
func openView(sourceView: UIView?, sourceRect: CGRect?) {
let vc = ViewControllerA()
//Try popover
if let sourceView = sourceView,
let sourceRect = sourceRect {
vc.modalPresentationStyle = .popover
if let popover = vc.popoverPresentationController {
vc.preferredContentSize = return CGSize(width: 390, height: 390)
vc.presentationController?.delegate = self
popover.sourceView = sourceView
popover.sourceRect = sourceRect
popover.permittedArrowDirections = [.up, .left]
self.present(vc, animated: true, completion: nil)
return
}
}
//present it normally if there's no source view
vc.modalPresentationStyle = .overCurrentContext
vc.modalTransitionStyle = .crossDissolve
self.present(vc, animated: true, completion: nil)
}
To change a size of your presented controller in popover view you should modify its preferredContentSize property:
@IBAction func showPopover(_ sender: UIButton) {
// Create controller
guard let controller = storyboard?.instantiateViewController(withIdentifier: "Popover") else {
return
}
controller.modalPresentationStyle = .popover
controller.preferredContentSize = CGSize(width: 200, height: 200)
// Configure popover
guard let popover = controller.popoverPresentationController else {
return
}
popover.permittedArrowDirections = .up
popover.sourceView = self.view
popover.sourceRect = sender.frame
popover.delegate = self
present(controller, animated: true, completion: nil)
// Change height after 3 secs
DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
controller.preferredContentSize = CGSize(width: 200, height: 400)
}
}