原文地址：http://www.cocoachina.com/applenews/devnews/2013/0328/5907.html

#define NavigationBar_HEIGHT 44
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#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])?
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#define BACKGROUND_COLOR [UIColor colorWithRed:242.0/255.0 green:236.0/255.0 blue:231.0/255.0 alpha:1.0]
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//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
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#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)
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#if TARGET_OS_IPHONE
//iPhone Device
#endif
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#if TARGET_IPHONE_SIMULATOR
//iPhone Simulator
#endif
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//ARC
#if __has_feature(objc_arc)
??? //compiling with ARC
#else
??? // compiling without ARC
#endif
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//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)
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#define USER_DEFAULT [NSUserDefaults standardUserDefaults]
#define ImageNamed(_pointer) [UIImage imageNamed:[UIUtil imageName:_pointer]]
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#pragma mark - common functions?
#define RELEASE_SAFELY(__POINTER) { [__POINTER release]; __POINTER = nil; }
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#pragma mark - degrees/radian functions?
#define degreesToRadian(x) (M_PI * (x) / 180.0)
#define radianToDegrees(radian) (radian*180.0)/(M_PI)
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#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
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#ifndef ITTMAXLOGLEVEL
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#ifdef DEBUG
??? #define ITTMAXLOGLEVEL ITTLOGLEVEL_INFO
#else
??? #define ITTMAXLOGLEVEL ITTLOGLEVEL_ERROR
#endif
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#endif
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// 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
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// Prints the current method's name.
#define ITTDPRINTMETHODNAME() ITTDPRINT(@"%s", __PRETTY_FUNCTION__)
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// Log-level based logging macros.
#if ITTLOGLEVEL_ERROR <= ITTMAXLOGLEVEL
? #define ITTDERROR(xx, ...)? ITTDPRINT(xx, ##__VA_ARGS__)
#else
? #define ITTDERROR(xx, ...)? ((void)0)
#endif
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#if ITTLOGLEVEL_WARNING <= ITTMAXLOGLEVEL
? #define ITTDWARNING(xx, ...)? ITTDPRINT(xx, ##__VA_ARGS__)
#else
? #define ITTDWARNING(xx, ...)? ((void)0)
#endif
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#if ITTLOGLEVEL_INFO <= ITTMAXLOGLEVEL
? #define ITTDINFO(xx, ...)? ITTDPRINT(xx, ##__VA_ARGS__)
#else
? #define ITTDINFO(xx, ...)? ((void)0)
#endif
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#ifdef ITTDEBUG
? #define ITTDCONDITIONLOG(condition, xx, ...) { if ((condition)) { \
????????????????????????????????????????????????? ITTDPRINT(xx, ##__VA_ARGS__); \
??????????????????????????????????????????????? } \
????????????????????????????????????????????? } ((void)0)
#else
? #define ITTDCONDITIONLOG(condition, xx, ...) ((void)0)
#endif
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#define ITTAssert(condition, ...)?????????????????????????????????????? \
do {????????????????????????????????????????????????????????????????????? \
??? if (!(condition)) {???????????????????????????????????????????????????? \
??????? [[NSAssertionHandler currentHandler]????????????????????????????????? \
??????????? handleFailureInFunction:[NSString stringWithUTF8String:__PRETTY_FUNCTION__] \
??????????????????????????????? file:[NSString stringWithUTF8String:__FILE__]? \
??????????????????????????? lineNumber:__LINE__????????????????????????????????? \
??????????????????????????? description:__VA_ARGS__];???????????????????????????? \
??? }?????????????????????????????????????????????????????????????????????? \
} while(0)

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會員：雞累基類雞肋

#define LOADIMAGE(file,ext) [UIImage imageWithContentsOfFile:[[NSBundle mainBundle]pathForResource:file ofType:ext]]

讀取本地圖片的 和imageNamed一樣，但是性能比后者要強很多，兩個參數，前面一個是 文件名，后面一個是類型

例如 imageView.image =? LOADIMAGE(@"文件名",@"png");

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會員：anglepro
#define?? WIDTH?? [[UIScreen mainScreen] bounds].size.width
#define? HEIGHT? [[UIScreen mainScreen] bounds].size.height

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會員：l20061642
#define VIEWWITHTAG(_OBJECT, _TAG)??? [_OBJECT viewWithTag : _TAG]

會員：pri_est
#define MyLocal(x, ...) NSLocalizedString(x, nil)

這樣就不需要填默認的參數了. 對于需要反復使用的方法比較方便。

比如說MyLocal(@"0094")? 代替了NSLocalizedString(@"0094", nil)

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會員：oopp
引用第1樓雞累基類雞肋于2013-03-26 14:58發表的? :
#define LOADIMAGE(file,ext) [UIImage imageWithContentsOfFile:[[NSBundle mainBundle]pathForResource:file ofType:ext]]

讀取本地圖片的 和imageNamed一樣，但是性能比后者要強很多，兩個參數，前面一個是 文件名，后面一個是類型

例如 imageView.image =? LOADIMAGE(@"文件名",@"png");

在資源不吃緊的情況下,這種反而是個累贅,因為沒有緩存.

imagenamed只是說要緩存,而且無法手動清空而已.緩存是好是壞,只能自己判定.

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會員beyondvincent

// rgb顏色轉換（16進制->10進制）
#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]

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期待此貼有更全面、更豐富的內容，你的一小步，大家一大步......

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原帖地址：http://www.cocoachina.com/bbs/read.php?tid=137317&page=1

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