withAlphaComponent(_:)
Creates a color object that has the same color space and component values as the receiver, but has the specified alpha component.
Declaration
func withAlphaComponent(_ alpha: CGFloat) -> UIColorParameters
- alpha:
The opacity value of the new color object, specified as a value from 0.0 to 1.0. Alpha values below 0.0 are interpreted as 0.0, and values above 1.0 are interpreted as 1.0.
Return Value
The new UIColor object.
Discussion
A subclass with explicit opacity components should override this method to return a color with the specified alpha.