If constraint `firstItem` `superview` does not exist

[markst]

@ezescaruli has this been an issue for you at any time?

[ezescaruli]

@markst

Nope actually, but I figure it could happen if the items are reversed, right? In that case firstItem ends up being the view controller's root view, and firstItem's superview could be nil.

Do you think it might be worth checking the secondItem's superview as well, to consider that scenario? Like:

UIView *superview = [(UIView *) self.firstItem superview];

if (superview == nil) {
    superview = [(UIView *) self.secondItem superview];
}

if (superview) {
    ...
}

[markst]

@ezescaruli this is true. But then I think this would be the incorrect usage of the constraint, since the value applied to the constant then need to be reversed also?

[ezescaruli]

@markst Fair point. Let's go with your fix then.