宏定义
#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() == UIUserInte易做图ceIdiomPad)
#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__]; \
} &nb
补充：移动开发 , IOS ,
