iOS开发常用高效率宏

github:https://github.com/koknine (终于改成以前的了)

iOS开发当中，有很多用的多但是写起来比较繁琐的代码，比如获取屏幕的宽高，简直纠结的不行，之前在CSDN上面看到很多不错的总结。

iOS开发常用宏这里面就总结的很好，但是为什么字那么小。。。

我在这里重新录入，并添加一些自己写的，后续会继续更新一些好用的宏。

尺寸宏

#define StatusBar_HEIGHT 20

#define NavigationBar_HEIGHT 44

#define NavigationBarIcon 20

#define TabBar_HEIGHT 49

#define TabBarIcon 30

#define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)

#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)

打印宏

//替换NSLog来使用，debug模式下可以打印很多方法名，行信息。

#ifdef DEBUG

#  define DLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__);

#else

#  define DLog(...)

#endif

//直接替换NSLog

#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,当前行以及弹出一个警告

#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)

系统宏

//获取版本

#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)

内存宏

//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

图片宏

//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]]

//前两种宏性能高，省内存

//第三个没有必要使用，因为我们可以使用Xcode的插件

颜色宏

// 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)]

其他宏

//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)

单例宏

#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; \

}