Open Radar

 
Summary:
When presenting a view controller from a UIDocumentBrowserViewController, getting the transition controller with transitionControllerForDocumentURL:, the presented view controller does not control the status bar.

This is because UIDocumentBrowserTransitionController creates a plain UIPresentationController. This should not be done for opaque presented view controllers because a plain UIPresentationController fills the screen but returns NO to _shouldPresentedViewControllerControlStatusBarAppearance.

Steps to Reproduce:
1. Use UIDocumentBrowserViewController
2. Open a document by presenting a view controller with the transition controller from transitionControllerForDocumentURL:
3. Make the presented view controller (or some child of it) hide the status bar or alter the status bar appearance.

Expected Results:
Presented view controller (or some child of it) should be able to hide and change the appearance of the status bar.

This can be done by making the presentation controller used by UIDocumentBrowserTransitionController should return YES to _shouldPresentedViewControllerControlStatusBarAppearance.

Actual Results:
Presented view controller (or some child of it) can not change the status bar from what the UIDocumentBrowserViewController specifies.

Version:
iOS 11.1.1

Notes:
Workaround is to set modalPresentationCapturesStatusBarAppearance on the presented view controller, even though this is a full screen presentation and this violates separation of concerns as this ought to be the presentation controller’s responsibility.