自己常用的宏（遇到添加）

1.屏幕宽度屏幕高度

#define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width

#define SCREENH_HEIGHT [UIScreen mainScreen].bounds.size.height

2.获取随机颜色

#define RRRandomColor [UIColor colorWithRed:arc4random_uniform(256)/255.0 green:arc4random_uniform(256)/255.0 blue:arc4random_uniform(256)/255.0 alpha:1.0]

3.颜色

#define RRColor(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]

#define RRALPHAColor(r, g, b, a) [UIColor colorWithRed:(r)/255.0 green:(r)/255.0 blue:(r)/255.0 alpha:a]

#define RRClearColor [UIColor clearColor]

4.Log

RRLog(...) NSLog(@"%s 第%d行 %@ ",__func__,__LINE__,[NSString stringWithFormat:__VA_ARGS__])

5.判空

//是否为空或是[NSNull null]

#define NotNilAndNull(_ref) (((_ref) != nil) && (![(_ref) isEqual:[NSNull null]]))

#define IsNilOrNull(_ref) (((_ref) == nil) || ([(_ref) isEqual:[NSNull null]]))

//字符串是否为空

#define IsStrEmpty(_ref) (((_ref) == nil) || ([(_ref) isEqual:[NSNull null]]) ||([(_ref)isEqualToString:@""]) ||([(_ref)isEqualToString:@"(null)"]))

//数组是否为空

#define IsArrEmpty(_ref) (((_ref) == nil) || ([(_ref) isEqual:[NSNull null]]) ||([(_ref) count] == 0))

#define IsNumberEmpty(_ref) ((_ref) == nil) || ((_ref).floatValue == 0)