本文大部分是摘取新风做浪博友的宏定义 和 大神sunnyxx ,后续会持续更新。
#ifndef MacroDefinition_h
#define MacroDefinition_h
//-------------------获取设备大小-------------------------
//NavBar高度
#define NavigationBar_HEIGHT44
//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__] essage:[NSString stringWithFormat:fmt, ##__VA_ARGS__]delegate:nil cancelButtonTitle:@"Ok"otherButtonTitles:nil]; [alert show]; }
#else
#define ULog(...)
#endif
#define ITTDEBUG
#define ITTLOGLEVEL_INFO10
#define ITTLOGLEVEL_WARNING3
#define ITTLOGLEVEL_ERROR1
#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))/255.0alpha:1.0]
//带有RGBA的颜色设置
#define COLOR(R, G, B, A) [UIColor colorWithRed:R/255.0green:G/255.0blue:B/255.0alpha:A]
//获取RGB颜色
#define RGBA(r,g,b,a) [UIColor colorWithRed:r/255.0fgreen:g/255.0fblue:b/255.0falpha:a]
#define RGB(r,g,b) RGBA(r,g,b,1.0f)
//背景色
#define BACKGROUND_COLOR [UIColor colorWithRed:242.0/255.0green:236.0/255.0blue:231.0/255.0alpha:1.0]
//清除背景色
#define CLEARCOLOR [UIColor clearColor]
#pragma mark - color functions
#define RGBCOLOR(r,g,b) [UIColor colorWithRed:(r)/255.0fgreen:(g)/255.0fblue:(b)/255.0falpha:1]
#define RGBACOLOR(r,g,b,a) [UIColor colorWithRed:(r)/255.0fgreen:(g)/255.0fblue:(b)/255.0falpha:(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)
#define LITE_RESOURCE_BUNDLE[[ NSBundle mainBundle] pathForResource:\
@"LiteResource"\
ofType:@"bundle"];
//加锁
#define onExit \
__strong void (^block)(void) __attribute__((cleanup(blockCleanUp),unused)) = ^
/*
NSRecursiveLock *aLock = [[NSRecursivewLock alloc] init];
[aLock lock];
onExit {
[aLock unlock];//妈妈再也不用担心我忘写后半段了
}
*/
//TODO宏定义
#define STRINGIFY(S) #S
#define DEFER_STRINGIFY(S) STRINGIFY(S)
#define PRAGMA_MESSAGE(MSG) _Pragma(STRINGIFY(message(MSG)))
#define FORMATTED_MESSAGE(MSG)"[TODO-"DEFER_STRINGIFY(__COUNTER__)"] "MSG" \n"\
DEFER_STRINGIFY(__FILE__)" line "DEFER_STRINGIFY(__LINE__)
#define KEYWORDIFY try {} @catch (...) {}
//最终使用下面的宏
#define TODO(MSG) KEYWORDIFY PRAGMA_MESSAGE(FORMATTED_MESSAGE(MSG))
#endif
----------------------------------------------------------------------------
GCD 与 #define
#define DISPATCH_ONCE_BLOCK(onceBlock) static dispatch_once_t onceToken; dispatch_once(&onceToken, onceBlock);
+ (instancetype)sharedService {staticXXX *sharedService = nil;//直接一行搞定DISPATCH_ONCE_BLOCK(^{ sharedService = [XXXnew]; })returnsharedService;}
----------------------------------------------------------------------------
//在Main线程上运行#defineDISPATCH_ON_MAIN_THREAD(mainQueueBlock)dispatch_async(dispatch_get_main_queue(),mainQueueBlock);//在Global Queue上运行
#defineDISPATCH_ON_GLOBAL_QUEUE_HIGH(globalQueueBlocl)dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH,0),globalQueueBlocl);
#defineDISPATCH_ON_GLOBAL_QUEUE_DEFAULT(globalQueueBlocl)dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT,0),globalQueueBlocl);
#defineDISPATCH_ON_GLOBAL_QUEUE_LOW(globalQueueBlocl)dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_LOW,0),globalQueueBlocl);
#defineDISPATCH_ON_GLOBAL_QUEUE_BACKGROUND(globalQueueBlocl)dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND,0),globalQueueBlocl);
//主线程上DISPATCH_ON_MAIN_THREAD(^{
//更新UI
})
//Global QueueDISPATCH_ON_GLOBAL_QUEUE_DEFAULT(^{
//异步耗时任务
})
//获取View的属性
#defineGetViewWidth(view)view.frame.size.width
#defineGetViewHeight(view)view.frame.size.height
#defineGetViewX(view)view.frame.origin.x
#defineGetViewY(view)view.frame.origin.y
//屏幕常量
#define GetScreenWidth [[UIScreen mainScreen] bounds].size.width
#define GetScreenHeight [[UIScreen mainScreen] bounds].size.height
\#defineSuppressPerformSelectorLeakWarning(Stuff)do{\_Pragma("clang diagnostic push")\_Pragma("clang diagnostic ignored\"-Warc-performSelector-leaks\"")Stuff;\_Pragma("clang diagnostic pop")\}while(0)
_Pargma的处理方式是把字符串常量的内容(在删除两边的双引号,并把字符串常量内部的\“替换为”,把\替换为\之后)看成是#pragma指令中出现的预处理器标记。 这段代码的基本流程:
1. push 当前警告入栈
2. 忽略我们要消除的警告
3. 执行会产生警告的代码
4. pop 警告出栈——恢复之前的状态