Hiding and showing UILabel with rounded corner and shadow in Swift 2

Question

I am using this method Swift - Problems with corner radius and drop shadow to add rounded corners and shadow to a UILabel.

However, I need to hide and unhide the label depending on content. I am setting hidden true/false in my ViewController class. But the shadow layer still shows.

See example images below.

What is the best way to hide/unhide this shadow layer as well?

Answer 1

Set the alpha to 0:

myLabel.alpha = 0