问题
When I use the UIDocumentInteractionController it's background color is always white in the beginning and when I tap it, it gets black (and back when tapped again).
Can I somehow invert this or even set a custom background color for both modes?
Another interesting bug is that once I touch the screen the status bar (which I have disabled) pops back up. So white screen with document --> tap screen --> black background with status bar --> tap white screen withs status bar.
Once I dismiss that UIDocumentInteractionController, I disable the status bar again but it looks really ugly.
I've got the info.plist set up correctly with UIViewController-wise decided status bar appearence set to NO.
来源：https://stackoverflow.com/questions/23705492/uidocumentinteractioncontroller-change-background-color-and-prevent-status-bar