hi I followed this post , and all work fine.
But when I tried the app on iOS 12.x the Segmented Control became invisibile, touchable, but no GUI. Just not visibile.
Why it behave like so? I expected only to became blue (the old style).
I was chaning the navigation bar appeareance in non-productive way.
noNavigationBar.SetField ("barTintColor", noNavigationBar.ColorToUIColor (Colors.White))
noNavigationBar.SetField ("tintColor", noNavigationBar.ColorToUIColor (Colors.Black)) 'must be different from the barTintColor'
'noNavigationBar.SetField ("translucent", False) 'on iOS > 12.x do not put this line, or put it to True'