转：ios开发常用的宏

收集起来，丢到一个头文件中，这样开发起来就快多啦！我先分享一些，大家可以拿出自己私藏的，盖楼，吼吼～
各种收集，网络，自己写的，别人写的都有，纯学习用，如有冒犯，请不要找我麻烦哈～

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#define NavigationBar_HEIGHT 44   #define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width) #define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height) #define SAFE_RELEASE(x) [x release];x=nil #define IOS_VERSION [[[UIDevice currentDevice] systemVersion] floatValue] #define CurrentSystemVersion ([[UIDevice currentDevice] systemVersion])   #define CurrentLanguage ([[NSLocale preferredLanguages] objectAtIndex:0])   #define BACKGROUND_COLOR [UIColor colorWithRed:242.0/255.0 green:236.0/255.0 blue:231.0/255.0 alpha:1.0]       //use dlog to print while in debug model #ifdef DEBUG #   define DLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__); #else #   define DLog(...) #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 isPad (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 BACK(block) dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), block) #define MAIN(block) dispatch_async(dispatch_get_main_queue(),block)     #define USER_DEFAULT [NSUserDefaults standardUserDefaults] #define ImageNamed(_pointer) [UIImage imageNamed:[UIUtil imageName:_pointer]]       #pragma mark - common functions #define RELEASE_SAFELY(__POINTER) { [__POINTER release]; __POINTER = nil; }     #pragma mark - degrees/radian functions #define degreesToRadian(x) (M_PI * (x) / 180.0) #define radianToDegrees(radian) (radian*180.0)/(M_PI)   #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)] #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   // Prints the current method's name. #define ITTDPRINTMETHODNAME() ITTDPRINT(@"%s", __PRETTY_FUNCTION__)   // Log-level based logging macros. #if ITTLOGLEVEL_ERROR <= ITTMAXLOGLEVEL   #define ITTDERROR(xx, ...)  ITTDPRINT(xx, ##__VA_ARGS__) #else   #define ITTDERROR(xx, ...)  ((void)0) #endif   #if ITTLOGLEVEL_WARNING <= ITTMAXLOGLEVEL   #define ITTDWARNING(xx, ...)  ITTDPRINT(xx, ##__VA_ARGS__) #else   #define ITTDWARNING(xx, ...)  ((void)0) #endif   #if ITTLOGLEVEL_INFO <= ITTMAXLOGLEVEL   #define ITTDINFO(xx, ...)  ITTDPRINT(xx, ##__VA_ARGS__) #else   #define ITTDINFO(xx, ...)  ((void)0) #endif   #ifdef ITTDEBUG   #define ITTDCONDITIONLOG(condition, xx, ...) { if ((condition)) { \                                                   ITTDPRINT(xx, ##__VA_ARGS__); \                                                 } \                                               } ((void)0) #else   #define ITTDCONDITIONLOG(condition, xx, ...) ((void)0) #endif   #define ITTAssert(condition, ...)                                       \ do {                                                                      \     if (!(condition)) {                                                     \         [[NSAssertionHandler currentHandler]                                  \             handleFailureInFunction:[NSString stringWithUTF8String:__PRETTY_FUNCTION__] \                                 file:[NSString stringWithUTF8String:__FILE__]  \                             lineNumber:__LINE__                                  \                             description:__VA_ARGS__];                             \     }                                                                       \ } while(0)       #define _po(o) DLOG(@"%@", (o)) #define _pn(o) DLOG(@"%d", (o)) #define _pf(o) DLOG(@"%f", (o)) #define _ps(o) DLOG(@"CGSize: {%.0f, %.0f}", (o).width, (o).height) #define _pr(o) DLOG(@"NSRect: {{%.0f, %.0f}, {%.0f, %.0f}}", (o).origin.x, (o).origin.x, (o).size.width, (o).size.height)   #define DOBJ(obj)  DLOG(@"%s: %@", #obj, [(obj) description])   #define MARK    NSLog(@"\nMARK: %s, %d", __PRETTY_FUNCTION__, __LINE__)

 

转自：http://www.cocoachina.com/bbs/read.php?tid=137317