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Create a gradient UIColor from an array of colors.
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func colorWithGradient(frame: CGRect, colors: [UIColor]) -> UIColor { | |
// create the background layer that will hold the gradient | |
let backgroundGradientLayer = CAGradientLayer() | |
backgroundGradientLayer.frame = frame | |
// we create an array of CG colors from out UIColor array | |
let cgColors = colors.map({$0.CGColor}) | |
backgroundGradientLayer.colors = cgColors | |
UIGraphicsBeginImageContext(backgroundGradientLayer.bounds.size) | |
backgroundGradientLayer.renderInContext(UIGraphicsGetCurrentContext()) | |
let backgroundColorImage = UIGraphicsGetImageFromCurrentImageContext() | |
UIGraphicsEndImageContext() | |
return UIColor(patternImage: backgroundColorImage) | |
} |
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