The correct way to use 'sizeThatFits(_:)' #269
Description
I usually use method #1 when I want to calculate the size of a view with a fixed width and maximum height, just like a 'UILabel'.
However, when I tried to do this in flexlayout, the only thing that worked was CGFloat.nan.
Am I doing something wrong? If not, I think I need to modify the logic in the library.