iOS开发常用的宏

#define kScale ([UIScreen mainScreen].bounds.size.width)/320

#define StatusBar_HEIGHT 20  //状态栏高度

#define NavigationBar_HEIGHT 44  //导航条高度

#define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width) //屏幕宽度

#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)//屏幕高度

#define IOS_VERSION [[[UIDevice currentDevice] systemVersion] floatValue] //系统版本-float

#define CurrentSystemVersion ([[UIDevice currentDevice] systemVersion])  //系统版本-string

#define CurrentLanguage ([[NSLocale preferredLanguages] objectAtIndex:0]) //系统语言

#define kWindow [[UIApplication sharedApplication] keyWindow]

#ifdef DEBUG

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

#else

#  define XHLog(...)

#endif

#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 isiPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

#if TARGET_OS_IPHONE

//iPhone Device

#endif

#if TARGET_IPHONE_SIMULATOR

//iPhone Simulator

#endif

//ARC

#if __has_feature(objc_arc)

//compiling with ARC

#else

// compiling without ARC

#endif

//G－C－D

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

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

#define kWS(weakSelf)          __weak __typeof(&*self)weakSelf = self;

#define kWeakObj(object) __weak typeof(object)

#ifndef weakify

#if DEBUG

#if __has_feature(objc_arc)

#define weakify(object) autoreleasepool{} __weak __typeof__(object) weak##_##object = object;

#else

#define weakify(object) autoreleasepool{} __block __typeof__(object) block##_##object = object;

#endif

#else

#if __has_feature(objc_arc)

#define weakify(object) try{} @finally{} {} __weak __typeof__(object) weak##_##object = object;

#else

#define weakify(object) try{} @finally{} {} __block __typeof__(object) block##_##object = object;

#endif

#endif

#endif

#ifndef strongify

#if DEBUG

#if __has_feature(objc_arc)

#define strongify(object) autoreleasepool{} __typeof__(object) object = weak##_##object;

#else

#define strongify(object) autoreleasepool{} __typeof__(object) object = block##_##object;

#endif

#else

#if __has_feature(objc_arc)

#define strongify(object) try{} @finally{} __typeof__(object) object = weak##_##object;

#else

#define strongify(object) try{} @finally{} __typeof__(object) object = block##_##object;

#endif

#endif

#endif

#pragma mark - 是否为空或是[NSNull null]

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

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

#pragma mark - 图片资源获取

#define kIMGFROMBUNDLE( X )    [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:X ofType:@""]]

#define kImageNamed( X )        [UIImage imageNamed:X]

#define USER_DEFAULT [NSUserDefaults standardUserDefaults]

#define DECLARE_SINGLETON(cls_name, method_name)\

+ (cls_name*)method_name;

#define IMPLEMENT_SINGLETON(cls_name, method_name)\

+ (cls_name *)method_name {\

static cls_name *method_name;\

static dispatch_once_t onceToken;\

dispatch_once(&onceToken, ^{\

method_name = [[cls_name alloc] init];\

});\

return method_name;\

}

#define L(s) NSLocalizedString((s), nil)

#define EMPTY_STRING(string) \

( [string isKindOfClass:[NSNull class]] || \

string == nil || [string isEqualToString:@""])

#define GET_STRING(string) (EMPTY_STRING(string) ? @"" : string)

#define OBJC_STRINGIFY(x) @#x

#define encodeObject(x) [aCoder encodeObject:x forKey:OBJC_STRINGIFY(x)]

#define decodeObject(x) x = [aDecoder decodeObjectForKey:OBJC_STRINGIFY(x)]

#define encodeBool(x) [aCoder encodeBool:x forKey:OBJC_STRINGIFY(x)]

#define decodeBool(x) x = [aDecoder decodeBoolForKey:OBJC_STRINGIFY(x)]

#define encodeInt(x) [aCoder encodeInt:x forKey:OBJC_STRINGIFY(x)]

#define decodeInt(x) x = [aDecoder decodeIntForKey:OBJC_STRINGIFY(x)]

#define encodeDouble(x) [aCoder encodeDouble:x forKey:OBJC_STRINGIFY(x)]

#define decodeDouble(x) x = [aDecoder decodeDoubleForKey:OBJC_STRINGIFY(x)]