Swift String to UIColor(16进制字符串转颜色值)

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func colorWithHexString (hex:String) -> UIColor {

var cString:@H_404_22@String = hex.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet()).uppercaseString
if (cString.hasPrefix("#")) {
cString = cString.substringFromIndex(@H_404_22@1)
}
if (countElements(cString) != @H_404_22@ 6) {
return UIColor.grayColor()
}
var rString = cString.substringToIndex(@H_404_22@2)
var gString 2)2)
var bString 4)2)
var r:CUnsignedInt = @H_404_22@0,g:CUnsignedInt = @H_404_22@ 0,b:CUnsignedInt 0;
NSScanner.scannerWithString(rString).scanHexInt(&r)
.scannerWithString(gString)&g)
.scannerWithString(bString)&b)
return UIColor(red: @H_404_22@ Float(r) / @H_404_22@ 255.404_22@Float(g) / @H_404_22@255404_22@Float(b) 404_22@Float(@H_404_22@1))
}

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