Swift | UIViewController not showing as PopUp but Fullscreen - swift

Question

So i have a viewcontroller which is basically an alert window which is supposed to be a popup and be dismissed by the tap on outside its frame.
But whenever i call that VC, it is always displayed as fullscreen and not as a pop up window.
I have tried a couple of ways to do this, namely as mentioned below.
if let exp : String = expiredVehicles[i] {
expiredVehicleNumber = expiredVehicles[i]
let popUpVC = SubscriptionExpired()
popUpVC.modalTransitionStyle = .crossDissolve
popUpVC.modalPresentationStyle = .popover // also tried other presentation styles but none work and it is still fullscreen
popUpVC.view.backgroundColor = UIColor.white.withAlphaComponent(0.8)
self.present(popUpVC, animated: true, completion: nil)
}
in case anyone need to see the definition of that VC, i will be glad to share it
i feel i should mention that the VC to be displayed as a popup is inheriting UIViewController
Any insight that might help would be great.
Thanks for the input

Answer 1

One potential way is to add a tap gesture recognizer to your View, which dismisses the VC.
But this will only be helpful if this popup has read-only info and doesn't require any further action from the user.
func addTapRecognizer(){
let tap = UITapGestureRecognizer(target: self, action: #selector(self.handleTap))
self.view.addGestureRecognizer(tap)
}
#objc func handleTap(){
// dismiss the VC here
}
}

Answer 2

You can call following method to show popup:
let popupVC = SubscriptionExpired()
popupVC.modalPresentationStyle = .overCurrentContext
self.addChild(popupVC)
popupVC.view.frame = self.view.frame
self.view.addSubview(popupVC.view)
popupVC.didMove(toParent: self)
}
Then, for removing that popup you can use:
UIView.animate(withDuration: 0.25, animations: {
self.view.transform = CGAffineTransform(scaleX: 1.3, y: 1.3)
self.view.alpha = 0.0
}, completion: { (finished) in
if finished {
self.view.removeFromSuperview()
}
})
In that case I have a button inside popup and whenever that button pressed above method triggers. Can you please try it? I can edit my answer according to your needs.

Answer 3

You need to implement this in you presenting view controller:
func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentationStyle {
// Return no adaptive presentation style, use default presentation behaviour
return .none
}
UIPopoverPresentationController displaying popover as full screen