iOS 宏定義_16進制色值轉化為RGB返回UIColor類型對象

// 十六進制顏色

#define COLOR_WITH_HEX(hexValue) [UIColor colorWithRed:((float)((hexValue & 0xFF0000) >> 16)) / 255.0 green:((float)((hexValue & 0xFF00) >> 8)) / 255.0 blue:((float)(hexValue & 0xFF)) / 255.0 alpha:1.0f]

// 調用
UIColor *redColor = COLOR_WITH_HEX(0xe4e5e5);