【OBJC类扩展之Hex值颜色转换】UIColor+Hex

#import <UIKit/UIKit.h>@interface UIColor (Hex)+ (UIColor *)colorWithHex:(long)hexColor;+ (UIColor *)colorWithHex:(long)hexColor alpha:(float)opacity;@end#import "UIColor+Hex.h"@implementation UIColor (Hex)+ (UIColor*) colorWithHex:(long)hexColor;{    return [UIColor colorWithHex:hexColor alpha:1.];    }+ (UIColor *)colorWithHex:(long)hexColor alpha:(float)opacity{    float red = ((float)((hexColor & 0xFF0000) >> 16))/255.0;    float green = ((float)((hexColor & 0xFF00) >> 8))/255.0;    float blue = ((float)(hexColor & 0xFF))/255.0;    return [UIColor colorWithRed:red green:green blue:blue alpha:opacity];  }   @end