iOS UIColor 16进制转换

宏定义如下:

#define HexColor(s)  [UIColor colorWithRed:(((s & 0xFF0000) >> 16))/255.0green:(((s &0xFF00) >>8))/255.0blue:((s &0xFF))/255.0alpha:1.0]

使用:

view.backgroundColor = HexColor(0xFFFFFF);