iOS 开发中常用的宏

//获取屏幕 宽度、高度
#define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)
#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)

#ifdef DEBUG

#define MTLog(...) NSLog(__VA_ARGS__)

#define MTMethod MTLog(@"%s",__func__)

#ifdef DEBUG    
# define DLog(format, ...) NSLog((@"[文件名:%s]" "[函数名:%s]" "[行号:%d]" format), __FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__);    
#else    
# define DLog(...);    
#endif    

#else

#define MTLog(...)

#define MTMethod 

#endif

#define App_Frame_Height        [[UIScreen mainScreen] applicationFrame].size.height/获取屏幕高度 (不计算状态栏,就是app的范围)

#define App_Frame_Width         [[UIScreen mainScreen] applicationFrame].size.width /获取屏幕宽度 (不计算状态栏,就是app的范围)

#ifdef DEBUG
 #define DNSLogPoint(p) NSLog(@"%f,%f", p.x, p.y)
 #define DNSLogSize(p) NSLog(@"%f,%f", p.width, p.height)
 #define DNSLogRect(p) NSLog(@"%f,%f,%f,%f", p.origin.x, p.origin.y, p.size.width, p.size.height)
#els
 #define DNSLogPoint(p)
 #define DNSLogSize(p)
 #define DNSLogRect(p)

#endif

//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(imageName) [UIImage imageNamed:[NSString stringWithFormat:@ "%@" ,imageName]]

// 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 ]

// 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)

// 获取屏幕大小
#define kDeviceWidth [UIScreen mainScreen].bounds.size.width
#define KDeviceHeight [UIScreen mainScreen].bounds.size.height

#define IS_IOS7 (([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0 )? (YES):(NO))
#define IS_IOS6 (([[[UIDevice currentDevice] systemVersion] floatValue] >= 6.0 )? (YES):(NO))
#define IS_4INCH ([UIScreen instancesRespondToSelector: @selector (currentMode)] ? CGSizeEqualToSize(CGSizeMake( 640 , 1136 ), [[UIScreen mainScreen] currentMode].size) : NO)

//释放内存
#define RELEASE_SAFE(_Pointer) do {[_Pointer release],_Pointer = nil;} while ( 0 )
#endif


DimensMacros.h //状态栏高度 #define STATUS_BAR_HEIGHT 20 //NavBar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))     //广告栏高度 #define BANNER_HEIGHT 215   #define STYLEPAGE_HEIGHT 21   #define SMALLTV_HEIGHT 77   #define SMALLTV_WIDTH 110   #define FOLLOW_HEIGHT 220   #define SUBCHANNEL_HEIGHT 62



PathMacros.h //文件目录 #define kPathTemp                   NSTemporaryDirectory() #define kPathDocument               [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] #define kPathCache                  [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) objectAtIndex:0] #define kPathSearch                 [kPathDocument stringByAppendingPathComponent:@"Search.plist"]   #define kPathMagazine               [kPathDocument stringByAppendingPathComponent:@"Magazine"] #define kPathDownloadedMgzs         [kPathMagazine stringByAppendingPathComponent:@"DownloadedMgz.plist"] #define kPathDownloadURLs           [kPathMagazine stringByAppendingPathComponent:@"DownloadURLs.plist"] #define kPathOperation              [kPathMagazine stringByAppendingPathComponent:@"Operation.plist"]   #define kPathSplashScreen           [kPathCache stringByAppendingPathComponent:@"splashScreen"] #endif


UtilsMacros.h //Log utils marco   #define ALog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__);   #ifdef DEBUG #define DLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__); #else #define DLog(...) #endif   #ifdef DEBUG #define ULog(...) //#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     //System version utils   #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)     // 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)     #define IsPortrait ([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortrait || [UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortraitUpsideDown)     #define IsNilOrNull(_ref)   (((_ref) == nil) || ([(_ref) isEqual:[NSNull null]]))     //角度转弧度 #define DEGREES_TO_RADIANS(d) (d * M_PI / 180)   //大于等于7.0的ios版本 #define iOS7_OR_LATER SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0")   //大于等于8.0的ios版本 #define iOS8_OR_LATER SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"8.0")   //iOS6时，导航VC中view的起始高度 #define YH_HEIGHT (iOS7_OR_LATER ? 64:0)   //获取系统时间戳 #define getCurentTime [NSString stringWithFormat:@"%ld", (long)[[NSDate date] timeIntervalSince1970]]

参照C语言的预处理命令简介 ：

＃define              定义一个预处理宏
＃undef               取消宏的定义
＃include            包含文件命令
＃include_next   与＃include相似， 但它有着特殊的用途
＃if                      编译预处理中的条件命令， 相当于C语法中的if语句
＃ifdef                判断某个宏是否被定义， 若已定义， 执行随后的语句
＃ifndef             与＃ifdef相反， 判断某个宏是否未被定义
＃elif                  若＃if， ＃ifdef， ＃ifndef或前面的＃elif条件不满足， 则执行＃elif之后的语句， 相当于C语法中的else-if
＃else                与＃if， ＃ifdef， ＃ifndef对应， 若这些条件不满足， 则执行＃else之后的语句， 相当于C语法中的else
＃endif              ＃if， ＃ifdef， ＃ifndef这些条件命令的结束标志.
defined            与＃if， ＃elif配合使用， 判断某个宏是否被定义
＃line                标志该语句所在的行号
＃                      将宏参数替代为以参数值为内容的字符窜常量
＃＃                   将两个相邻的标记（token）连接为一个单独的标记
＃pragma        说明编译器信息＃warning       显示编译警告信息
＃error            显示编译错误信息