ios16进制转换成UIColor

#define kUIColorFromRGB(rgbValue, alphaValue) \

[UIColor \

colorWithRed:((float)((rgbValue & 0xFF0000) >>16))/255.0 \

green:((float)((rgbValue & 0x00FF00) >>8))/255.0 \

blue:((float)(rgbValue & 0x0000FF))/255.0 \

alpha:alphaValue]

UICorlor *color = UIColorFromRGBA(0xFF0000, .75);