iOS常用宏定义

//字符串是否为空

#define kStringIsEmpty(str) ([str isKindOfClass:[NSNull class]] || str == nil || [str length] < 1 ? YES : NO )

//数组是否为空

#define kArrayIsEmpty(array) (array == nil || [array isKindOfClass:[NSNull class]] || array.count == 0)

//字典是否为空

#define kDictIsEmpty(dic) (dic == nil || [dic isKindOfClass:[NSNull class]] || dic.allKeys == 0)

//是否是空对象

#define kObjectIsEmpty(_object) (_object == nil \|| [_object isKindOfClass:[NSNull class]] \|| ([_object respondsToSelector:@selector(length)] && [(NSData *)_object length] == 0) \|| ([_object respondsToSelector:@selector(count)] && [(NSArray *)_object count] == 0))

//获取屏幕宽度与高度

#define kScreenWidth \([[UIScreen mainScreen] respondsToSelector:@selector(nativeBounds)] ? [UIScreen mainScreen].nativeBounds.size.width/[UIScreen mainScreen].nativeScale : [UIScreen mainScreen].bounds.size.width)
#define kScreenHeight \([[UIScreen mainScreen] respondsToSelector:@selector(nativeBounds)] ? [UIScreen mainScreen].nativeBounds.size.height/[UIScreen mainScreen].nativeScale : [UIScreen mainScreen].bounds.size.height)
#define kScreenSize \([[UIScreen mainScreen] respondsToSelector:@selector(nativeBounds)] ? CGSizeMake([UIScreen mainScreen].nativeBounds.size.width/[UIScreen mainScreen].nativeScale,[UIScreen mainScreen].nativeBounds.size.height/[UIScreen mainScreen].nativeScale) : [UIScreen mainScreen].bounds.size)

//一些缩写

#define kApplication [UIApplication sharedApplication]
#define kKeyWindow [UIApplication sharedApplication].keyWindow
#define kAppDelegate [UIApplication sharedApplication].delegate
#define kUserDefaults [NSUserDefaults standardUserDefaults]
#define kNotificationCenter [NSNotificationCenter defaultCenter]

//APP版本号

#define kAppVersion [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"]

//系统版本号

#define kSystemVersion [[UIDevice currentDevice] systemVersion]

//获取当前语言

#define kCurrentLanguage ([[NSLocale preferredLanguages] objectAtIndex:0])

//判断是否为iPhone

#define kISiPhone (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)

//判断是否为iPad

#define kISiPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

//获取沙盒Document路径

#define kDocumentPath [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]

//获取沙盒temp路径

#define kTempPath NSTemporaryDirectory()

//获取沙盒Cache路径

#define kCachePath [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject]

//开发的时候打印，但是发布的时候不打印的

#if DEBUG
#define NSLog(FORMAT, ...) fprintf(stderr,"\nfunction:%s line:%d content:%s\n", __FUNCTION__, __LINE__, [[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]);
#else
#define NSLog(FORMAT, ...) nil
#endif

//颜色

#define kRGBColor(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]
#define kRGBAColor(r, g, b, a) [UIColor colorWithRed:(r)/255.0 green:(r)/255.0 blue:(r)/255.0 alpha:a]
#define kRandomColor KRGBColor(arc4random_uniform(256)/255.0,arc4random_uniform(256)/255.0,arc4random_uniform(256)/255.0)
#define kColorWithHex(rgbValue) \[UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16)) / 255.0 \green:((float)((rgbValue & 0xFF00) >> 8)) / 255.0 \blue:((float)(rgbValue & 0xFF)) / 255.0 alpha:1.0]

//由角度转换弧度

#define kDegreesToRadian(x) (M_PI * (x) / 180.0)

//由弧度转换角度

#define kRadianToDegrees(radian) (radian * 180.0) / (M_PI)

//获取一段时间间隔

#define kStartTime CFAbsoluteTime start = CFAbsoluteTimeGetCurrent();
#define kEndTime NSLog(@"Time: %f", CFAbsoluteTimeGetCurrent() - start)