behind the presentingViewController

Asked Apr 25 '17 at 08:03

Active Apr 25 '17 at 08:03

Viewed 223 times

I'm trying to do custom transitioning for modal view presentation using UIPresentationController, like below.

I scaled my presenting view like the following (inside func presentingTransitionWillBegin()):

self.presentingViewController.view.transform = CGAffineTransform(scaleX: 0.8, y: 0.8)

However, background of the presentingView is always black, and I can't find the right place to change the color.

I tried adding a white-colored view to the containerView and then add self.presentingViewController.view as its subview:

someView.backgroundColor = UIColor.white
containerView.addSubview(someView)
someview.addSubview(self.presentingViewController.view)

well, it worked somehow. but obviously it crashes after I dismiss the modal view. and I can't find where to place back this self.presentingViewController.view when dismiss transition ends!

Ultimately, I want to achieve something like below:

asked Apr 25 '17 at 08:03

sCha

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why did you add self.presentingViewController.view as subview while present ? – KKRocks Apr 25 '17 at 08:14
@KKRocks because I need the background to be white while `presentingView` scales down as it presents. – sCha Apr 25 '17 at 08:17
you can set this background in that class instead of while presenting . – KKRocks Apr 25 '17 at 08:19
Don't dismiss the View Controlller , Remove all `SubView` of `someView` – Dhiru Apr 25 '17 at 08:19
@KKRocks this class is a subClass of `UIPresentationController` and what property do you suggest to change? `self.backgroundColor` or `self.view` does not exists... – sCha Apr 25 '17 at 08:21
can you present that controller using self.present(vc, animated: true, completion: nil) – KKRocks Apr 25 '17 at 08:23
@Dhiru then everything will go black when I dismiss the presented modal view at some point. – sCha Apr 25 '17 at 08:23
put code that show how to present this view . – KKRocks Apr 25 '17 at 08:28

behind the presentingViewController

0 Answers0