iOS Modal Popup Starts Transparent But Turns Blank

Question

Using the iOS Simulator, I'm trying to get the modal to appear over the parent controller with a transparent background. I define the controller as:

var controller = new DailyRewardController();

controller.ModalPresentationStyle = UIModalPresentationStyle.CurrentContext;
controller.View.BackgroundColor = UIColor.Clear;
controller.View.Opaque = true;

PresentViewController (controller, true, null);

The controller initially appears with a transparent background, but as the animation finishes, the screen is now black, as in the following screenshot. Note: ignore the hideous popup; it's only a prototype :-)

enter image description here

This is how it appears after the animation finishes; however, as the animation runs, it's transparent... Any idea why?

score 1 · Answer 1 · answered Aug 24 '15 at 14:17

1

After finish the animation of presentviewcontroller the root view controller disappears, thats the reason.

answered Aug 24 '15 at 14:17

RubenVot

188
10

score 1 · Answer 2 · answered Sep 01 '16 at 00:44

1

Use below code,

var popupVC = this.Storyboard.InstantiateViewController("PopupViewController");
popupVC.ModalPresentationStyle = UIModalPresentationStyle.OverCurrentContext;
NavigationController.PresentModalViewController(popupVC, false);

answered Sep 01 '16 at 00:44

Bhauraj Biradar

134
5

Could you explain the below code? A nice explaination is the best if you want OP to understand and if you want upvotes. – Guillaume Racicot Sep 01 '16 at 01:04

score 0 · Answer 3 · edited May 23 '17 at 12:00

0

Try removing

controller.View.Opaque = true;

You are setting the background color to "Clear" but then turning Opaque to true which is contradictory.

See here: UIView: opaque vs. alpha vs. opacity

edited May 23 '17 at 12:00

Community

1
1

answered Aug 11 '14 at 17:06

pnavk

4,552
2
19
43

iOS Modal Popup Starts Transparent But Turns Blank

3 Answers3