How to setup UIView in a nib/xib to get background colour different in runtime but not interface builder

Question

I'm building reusable views in xib/nib files and I have some view that need to render .clear during runtime but... My superviews that will be presenting these nibs are dark and therefore when I design these nibs they have a white background and its hard to see my text and other controls on these views.

In other, is it possible to have a background colour black for example in the interface builder and at runtime they are clear?

Answer 1

You can add a User defined Runtime attribute from the inspector on your view controller in storyboard to adjust your background color on runtime.

Note: The key path is backgroundColor

Or just set the backgroundColor in awakeFromNib(). This function get's called once the nib has been loaded.

override func awakeFromNib() {
    super.awakeFromNib()

    backgroundColor = .blue
}