Weird behaviour after accessing bottomLayoutGuide with iOS14

[closure11]

@Describe the bug

Once I access ScrollingNavigationController's bottomLayoutGuide.length (even just print it), the awsome scrolling behaviour will be broken. I know bottomLayoutGuide was deprecated, but another library I used called this property.

• This only happened with iOS14, Xcode12.0.
• If I changed to use safeAreaInsets.bottom, this fixed.

To Reproduce
Steps to reproduce the behavior:

1. Clone the source code, open demo project.
2. In any child view controller , call navigationController?.bottomLayoutGuide.length

Expected behavior
Scrolling behaviour goes well as usual.

Screenshots
Here are the reproduction codes

[andreamazz]

Hey @wmadao11
yikes! UIKit is fighting back.
I'm not sure how to fix this to be honest, probably one way would be to override bottomLayoutGuide in the controller, but it's not something that I'd put in the codebase for everyone.
What's the other library?

[closure11]

@andreamazz
Thanks for your quick reply. Yes it seems not directly correspond as a bug on your end but a UIKit error. However, since I am actually an iOS beginner so I can't find out more info about this :(

What's the other library?

It's PanModal. As I said, if I changed to use safeAreaInsets.bottom, this fixed. So I committed a PR for them to fix my project temporarily.

[andreamazz]

Great 👍
Closing this for the time being, feel free to reopen if needed.