iOS-开发中常用的宏有哪些？

时间：2017-04-05 17:02

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OC对象判断是否为空？

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))

UI尺寸类的宏

状态栏高度

#define STATUS_BAR_HEIGHT 20

NavBar导航栏高度

#define NAVIGATION_BAR_HEIGHT 44

状态栏 ＋ 导航栏 高度

#define STATUS_AND_NAVIGATION_HEIGHT ((STATUS_BAR_HEIGHT) + (NAVIGATION_BAR_HEIGHT))

屏幕 rect

#define SCREEN_RECT ([UIScreen mainScreen].bounds)

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

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

#define CONTENT_HEIGHT (SCREEN_HEIGHT - NAVIGATION_BAR_HEIGHT - STATUS_BAR_HEIGHT)

屏幕分辨率

#define SCREEN_RESOLUTION (SCREEN_WIDTH * SCREEN_HEIGHT * ([UIScreen mainScreen].scale))

LOG日志打印

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

判断设备？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]

判断是否 Retina屏?

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

判断当前的iPhone设备/系统版本

判断是否为iPhone

#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)

判断是否为iPad

#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

判断是否为ipod

#define IS_IPOD ([[[UIDevice currentDevice] model] isEqualToString:@"iPod touch"])

判断是否为 iPhone 5SE

#define iPhone5SE [[UIScreen mainScreen] bounds].size.width == 320.0f && [[UIScreen mainScreen] bounds].size.height == 568.0f

判断是否为iPhone 6/6s

#define iPhone6_6s [[UIScreen mainScreen] bounds].size.width == 375.0f && [[UIScreen mainScreen] bounds].size.height == 667.0f

判断是否为iPhone 6Plus/6sPlus

#define iPhone6Plus_6sPlus [[UIScreen mainScreen] bounds].size.width == 414.0f && [[UIScreen mainScreen] bounds].size.height == 736.0f

获取系统版本

#define IOS_SYSTEM_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]

判断 iOS 8 或更高的系统版本

#define IOS_VERSION_8_OR_LATER (([[[UIDevice currentDevice] systemVersion] floatValue] >=8.0)? (YES):(NO))

判断设备的操做系统是不是ios7

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

判断是真机还是模拟器

#if TARGET_OS_IPHONE

//iPhone Device

#endif

#if TARGET_IPHONE_SIMULATOR

//iPhone Simulator

#endif

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)

定义一个define函数

#define TT_RELEASE_CF_SAFELY(__REF) { if (nil != (__REF)) { CFRelease(__REF); __REF = nil; } }

使用ARC和不使用ARC

#if __has_feature(objc_arc)

//compiling with ARC

#else

// compiling without ARC

#endif

#pragma mark - common functions

#define RELEASE_SAFELY(__POINTER) { [__POINTER release]; __POINTER = nil; }

释放一个对象

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

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

图片相关

//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］

颜色相关

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]

设置随机颜色

#define LRRandomColor [UIColor colorWithRed:arc4random_uniform(256)/255.0 green:arc4random_uniform(256)/255.0 blue:arc4random_uniform(256)/255.0 alpha:1.0]

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)]

方正黑体简体字体定义

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

网址相关

定义一个API

#define APIURL @"http://xxxxx/"

登录API

#define APILogin [APIURL stringByAppendingString:@"Login"]

设置View的tag属性

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

语言/国际化相关

获取当前语言

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

程序的本地化,引用国际化的文件

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

线程 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)

沙盒目录文件

//获取temp

#define kPathTemp NSTemporaryDirectory()

//获取沙盒 Document

#define kPathDocument [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]

//获取沙盒 Cache

#define kPathCache [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject]

NSUserDefaults 实例化

#define USER_DEFAULT [NSUserDefaults standardUserDefaults]

由角度获取弧度 ,由弧度获取角度

#define degreesToRadian(x) (M_PI * (x) / 180.0)

#define radianToDegrees(radian) (radian*180.0)/(M_PI)

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; \

}

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