总结了iOS开发过程中的一些常用宏，以后会陆陆续续添加进来。

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)

######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]

######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) //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

######获取设备尺寸大小

define NavigationBar_HEIGHT 44 // NavBar高度

// 获取屏幕 宽度、高度

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

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

######打印日志
- 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,"\nfunction:%s line:%d content:%s\n", FUNCTION, LINE, ［NSString stringWithFormat:FORMAT, ##VA_ARGS] UTF8String]);

else

define NSLog(FORMAT, ...) nil

endif

- DEBUG 模式下打印日志,当前行 并弹出一个警告

ifdef DEBUG

define ULog(fmt, ...) { UIAlertView *alert = ［UIAlertView alloc] initWithTitle:[NSString stringWithFormat:@"%s\n [Line %d] ", PRETTY_FUNCTION, LINE] message:[NSString stringWithFormat:fmt, ##VA_ARGS] delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil]; [alert show]; }

else

define ULog(...)

endif

#define ITTDEBUG
#define ITTLOGLEVEL_INFO    10
#define ITTLOGLEVEL_WARNING  3
#define ITTLOGLEVEL_ERROR    1
#ifndef ITTMAXLOGLEVEL
#ifdef DEBUG
#define ITTMAXLOGLEVEL ITTLOGLEVEL_INFO
#else
#define ITTMAXLOGLEVEL ITTLOGLEVEL_ERROR
#endif
#endif

- The general purpose logger. This ignores logging levels.

ifdef ITTDEBUG

define ITTDPRINT(xx, ...) NSLog(@"%s(%d): " xx, PRETTY_FUNCTION, LINE, ##VA_ARGS)

else

define ITTDPRINT(xx, ...) ((void)0)

endif

打印当前方法的名称

define ITTDPRINTMETHODNAME() ITTDPRINT(@"%s", PRETTY_FUNCTION)

####系统
- 是否iPad

define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

- 是否iPad

define someThing (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)? ipad: iphone

- 获取系统版本

define IOS_VERSION ［[UIDevice currentDevice] systemVersion] floatValue]

define CurrentSystemVersion ［UIDevice currentDevice] systemVersion]

- 获取当前语言

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

- 判断是否 Retina屏、设备是否为iPone 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)

- 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)

- 检查系统版本

define SYSTEM_VERSION_EQUAL_TO(v) (［[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)

define SYSTEM_VERSION_GREATER_THAN(v) (［[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)

define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) (［[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)

define SYSTEM_VERSION_LESS_THAN(v) (［[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)

define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v) (［[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)

######内存
- 释放一个对象

define SAFE_DELETE(P) if(P) { [P release], P = nil; }

define SAFE_RELEASE(x) [x release];x=nil

####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

####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]

pragma mark - color functions

define RGBCOLOR(r,g,b) [UIColor colorWithRed:(r)/255.0f green:(g)/255.0f blue:(b)/255.0f alpha:1]

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

####其他
- 方正黑体简体字体定义

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

- 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)

- GCD

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)

- NSUserDefaults 实例化

define USER_DEFAULT [NSUserDefaults standardUserDefaults]