Changing prefersStatusBarHidden value of a view controller that is presented as a popup content controller has no effect on views attached to topLayoutGuide/safeAreaLayoutGuide.
topLayoutGuide/safeAreaLayoutGuideprefersStatusBarHidden (without changing the device orientation) and call setNeedsStatusBarAppearanceUpdateiOS 11 and Xcode9

Hmm. Thanks for the report, will look soon.
Have you had any luck with this?
Unfortunately, I have not yet looked. A holiday is coming up here very soon, so I may be able to look then.
Found the issue and will push a fix in a few minutes.
Just a friendly reminder that hiding the status bar on iPhone X does not really make sense as the notch cannot hide also (if only… 😜). Nevertheless, the framework will support that scenario as well.
Thanks a lot!