Digging through UIKit with Objc utils has indeed turned out to be very useful.
Although I've stumbled upon a new issue associated with hiding the title bar. It seems if I present a view with the style 'sheet' and dismiss it via swipe, I cannot reopen it without the Exception that the view is already being presented. This does not seem to happen if I dismiss it with the close button on the title bar. Currently looking into this, but if you've encountered this before and care to share a workaround, I'd appreciate it.

@mikael thank you, that's exactly what I was looking for. For future reference, how can I access documentation for classes that aren't indexed on the pythonista page, for instance 'navigationController'. It seems this workaround requires access to the class but I wouldn't have known it existed were it not for your reply.

Thanks a bunch again!

Is there a way to retain the functionality of gesture navigation, eg. swiping right to go back one page, when navigation_bar_hidden is set to true? I was exploring the use of @mikael 's gestures module, but I'm not sure I can apply gestures on anything other than ui subclasses if I'm correct. If anyone could shed light on this, I would be grateful.