//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]

//判断是真机还是模拟器

if TARGET_OS_IPHONE

//真机

endif

if TARGET_IPHONE_SIMULATOR

//模拟器

endif

//开发的时候打印，但是发布的时候不打印的NSLog

ifdef DEBUG

define NSLog(...) NSLog(@"%s 第%d行 \n %@\n\n",func,LINE,[NSString stringWithFormat:VA_ARGS])

else

define NSLog(...)

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]

//弱引用/强引用

define kWeakSelf(type) __weak typeof(type) weak##type = type;

define kStrongSelf(type) __strong typeof(type) type = weak##type;

//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)

define SHOWALERT(m) \

{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:m delegate:nil cancelButtonTitle:@"确认" otherButtonTitles:nil];
[alert show];
}\