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 ( " \ ":连接行标志，连接上下两行 )

#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)

获取屏幕宽度、高度

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

#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)

判断设备的操做系统是不是ios7

#define IOS7 (［[UIDevice currentDevice].systemVersion doubleValue] >= 7.0]

判断当前设备是不是iphone5

#define kScreenIphone5 ((［UIScreen mainScreen] bounds].size.height)>=568)

一些常用的缩写

#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]

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) //随机色生成

#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)

宏（指令）定义

#ifndef MacroDefinition_h // 如果没定义

#define MacroDefinition_h

读取本地图片

#define LOADIMAGE(file,ext) [UIImage imageWithContentsOfFile:［NSBundle mainBundle]pathForResource:file ofType:ext］

定义UIImage对象

#define IMAGE(A) [UIImage imageWithContentsOfFile:［NSBundle mainBundle] pathForResource:A ofType:nil］

定义UIImage对象

#define ImageNamed(_pointer) [UIImage imageNamed:[UIUtil imageName:_pointer］

设置View的tag属性

#define VIEWWITHTAG(_OBJECT, _TAG) [_OBJECT viewWithTag : _TAG]

程序的本地化,引用国际化的文件

#define MyLocal(x, ...) NSLocalizedString(x, nil)

G－C－D

#define BACK(block) dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), block)

#define MAIN(block) dispatch_async(dispatch_get_main_queue(),block)

iOS常用宏 定义

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iOS常用宏定义