iOS开发中常见的宏

            
                #ifndef MacroDefinition_h
                #define MacroDefinition_h
                //-------------------获取设备大小-------------------------
                //NavBar高度
                #define NavigationBar_HEIGHT 44
                //获取屏幕 宽度、高度
                #define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)
                #define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)
                //-------------------获取设备大小-------------------------
                //-------------------打印日志-------------------------
                //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
                #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)

//---------------------打印日志--------------------------//----------------------系统----------------------------//获取系统版本#define IOS_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]#define CurrentSystemVersion [[UIDevice currentDevice] systemVersion]//获取当前语言#define CurrentLanguage ([[NSLocale preferredLanguages] objectAtIndex:0])//判断是否 Retina屏、设备是否%fhone 5、是否是iPad#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)//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)//----------------------系统----------------------------//----------------------内存----------------------------//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//----------------------内存----------------------------//----------------------图片----------------------------//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]]//建议使用前两种宏定义,性能高于后者//----------------------图片----------------------------//----------------------颜色类---------------------------// 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]// 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)]//----------------------颜色类--------------------------//----------------------其他----------------------------//方正黑体简体字体定义#define FONT(F) [UIFont fontWithName:@"FZHTJW--GB1-0" size:F]//定义一个API#define APIURL                @"http://xxxxx/"//登陆API#define APILogin              [APIURL stringByAppendingString:@"Login"]//设置View的tag属性#define VIEWWITHTAG(_OBJECT, _TAG)    [_OBJECT viewWithTag : _TAG]//程序的本地化,引用国际化的文件#define MyLocal(x, ...) NSLocalizedString(x, nil)//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)//NSUserDefaults 实例化#define USER_DEFAULT [NSUserDefaults standardUserDefaults]//由角度获取弧度 有弧度获取角度#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; }



#endif