How do I programmatically present a popover in iOS using Swift? - ios

Question

My goal is to present a UIViewController as a popover programmatically.
As you can see , the transition style is set to Cross Dissolve and the presentation is set to Over current context. So technically if I click the button, the transition will work, my goal is to do it programmatically.
func clickButton() {
//What should I do here?
}
How do I present the popover programmatically on clickButton?

Answer 1

If you are presenting view controller modally. You can do like this.
func clickButton() {
if let vc = self.storyboard?.instantiateViewController(withIdentifier:"YOUR_VIEW_CONTROLLER_ID") {
vc.modalTransitionStyle = .crossDissolve;
vc.modalPresentationStyle = .overCurrentContext
self.present(vc, animated: true, completion: nil)
}
}

Answer 2

You can try this:
let rateViewController = RatePopupVC()
rateViewController.modalTransitionStyle = .crossDissolve
rateViewController.modalPresentationStyle = .overCurrentContext
self.present(rateViewController, animated: true, completion: nil)
If you want to close it programmatically
Inside PopupVC
self.dismiss(animated: true, completion: nil)

Answer 3

Try this :
func clickButton() {
let vc : PopupVC = storyboard!.instantiateViewControllerWithIdentifier("PopupVCID") as! PopupVC
vc.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
self.presentViewController(vc, animated: true, completion: nil)
}

Answer 4

Try following code.
let popupview = storyboard?.instantiateViewController(withIdentifier: "YourViewController")
popupview.view.frame = CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height)
self.addChildViewController(popupview)
self.view.addSubview(popupview.view)
popupview.didMove(toParentViewController: popupview)