IOS RGB颜色转换

 1 - (UIColor *)getColor:(NSString *)hexColor
 2 {
 3     unsigned int red,green,blue;
 4     NSRange range;
 5     range.length = 2;
 6     
 7     range.location = 0;
 8     [[NSScanner scannerWithString:[hexColor substringWithRange:range]] scanHexInt:&red];
 9     
10     range.location = 2;
11     [[NSScanner scannerWithString:[hexColor substringWithRange:range]] scanHexInt:&green];
12     
13     range.location = 4;
14     [[NSScanner scannerWithString:[hexColor substringWithRange:range]] scanHexInt:&blue];
15     
16     return [UIColor colorWithRed:(float)(red/255.0f) green:(float)(green / 255.0f) blue:(float)(blue / 255.0f) alpha:1.0f];
17 }