Fading
public protocol Fading : UIView
                Fading protocol animates view in and out
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fadeIn(animated:duration:)Default implementationFade in Self with animation
Default Implementation
Fade in Self with animation
Declaration
Swift
func fadeIn(animated: Bool, duration: Double) - 
                  
fadeOut(animated:duration:)Default implementationFade out Self with animation
Default Implementation
Fade out Self with animation
Declaration
Swift
func fadeOut(animated: Bool, duration: Double) 
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      Fading Protocol Reference