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// Creates a UIColor from a Hex string. | |
func colorWithHexInString(hex : String) -> UIColor { | |
var cString:String = hex.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet()).uppercaseString | |
if (cString.hasPrefix("#")) { | |
cString = cString.substringFromIndex(advance(cString.startIndex, 1)) | |
} | |
if (countElements(cString) != 6) { | |
return UIColor.grayColor() | |
} | |
var rString = cString.substringToIndex(advance(cString.startIndex, 2)) | |
var gString = cString.substringFromIndex(advance(cString.startIndex, 2)).substringToIndex(advance(cString.startIndex, 2)) | |
var bString = cString.substringFromIndex(advance(cString.startIndex, 4)).substringToIndex(advance(cString.startIndex, 2)) | |
var r:CUnsignedInt = 0, g:CUnsignedInt = 0, b:CUnsignedInt = 0; | |
NSScanner.scannerWithString(rString).scanHexInt(&r) | |
NSScanner.scannerWithString(gString).scanHexInt(&g) | |
NSScanner.scannerWithString(bString).scanHexInt(&b) | |
var red = CGFloat(r)/255.0 | |
var green = CGFloat(g)/255.0 | |
var blue = CGFloat(b)/255.0 | |
var alpha = CGFloat(1) | |
return UIColor(red: red, green: green, blue: blue, alpha: alpha) | |
} |
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