iOS 开发常用宏

//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))

//DEBUG  模式下打印日志,当前行

#ifdef DEBUG

#   define DLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__);

#else

#   define DLog(...)

#endif

 

//重写NSLog,Debug模式下打印日志和当前行数

#if DEBUG

#define NSLog(FORMAT, ...) fprintf(stderr," function:%s line:%d content:%s ", __FUNCTION__, __LINE__, [[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]);

#else

#define NSLog(FORMAT, ...) nil

#endif

//获取当前语言

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

//判断是否 Retina屏、设备是否%fhone 5、是否是iPad

#define isRetina ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 960), [[UIScreen mainScreen] currentMode].size) : NO)

#define iPhone5 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 1136), [[UIScreen mainScreen] currentMode].size) : NO)

#define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

//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 
 %@

",__func__,__LINE__,[NSString stringWithFormat:__VA_ARGS__])
#else
#define NSLog(...)
#endif

//----------------------颜色类---------------------------

// rgb颜色转换（16进制->10进制）

#define UIColorFromRGB(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] 

//带有RGBA的颜色设置

#define COLOR(R, G, B, A) [UIColor colorWithRed:R/255.0 green:G/255.0 blue:B/255.0 alpha:A]

 // 获取RGB颜色

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

#define RGB(r,g,b) RGBA(r,g,b,1.0f)

 //背景色

#define BACKGROUND_COLOR [UIColor colorWithRed:242.0/255.0 green:236.0/255.0 blue:231.0/255.0 alpha:1.0]

 //清除背景色

#define CLEARCOLOR [UIColor clearColor]

 //----------------------颜色类---------------------------

//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)

//----------------------图片----------------------------

//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]]

 

//建议使用前两种宏定义,性能高于后者

//----------------------图片----------------------------

//单例化一个类

#define SYNTHESIZE_SINGLETON_FOR_CLASS(classname)

static classname *shared##classname = nil;

+ (classname *)shared##classname

{

    @synchronized(self)

    {

        if (shared##classname == nil)

        {

            shared##classname = [[self alloc] init];

        }

    }

   

    return shared##classname;

}

+ (id)allocWithZone:(NSZone *)zone

{

    @synchronized(self)

    {

        if (shared##classname == nil)

        {

            shared##classname = [super allocWithZone:zone];

            return shared##classname;

        }

    }

   

    return nil;

}

- (id)copyWithZone:(NSZone *)zone

{  

    return self;  

}

//方正黑体简体字体定义

#define FONT(F) [UIFont fontWithName:@"FZHTJW--GB1-0" size:F]

//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)