总结了iOS开发过程中的一些常用宏，以后会陆陆续续添加进来。
字符串是否为空
| 1 | #define kStringIsEmpty(str) ([str isKindOfClass:[NSNull class]] || str == nil || [str length] < 1 ? YES : NO ) |
数组是否为空
| 1 | #define kArrayIsEmpty(array) (array == nil || [array isKindOfClass:[NSNull class]] || array.count == 0) |
字典是否为空
| 1 | #define kDictIsEmpty(dic) (dic == nil || [dic isKindOfClass:[NSNull class]] || dic.allKeys == 0) |
是否是空对象
| 1234 | #define kObjectIsEmpty(_object) (_object == nil / || [_object isKindOfClass:[NSNull class]] / || ([_object respondsToSelector:@selector(length)] && [(NSData *)_object length] == 0) / || ([_object respondsToSelector:@selector(count)] && [(NSArray *)_object count] == 0)) |
获取屏幕宽度与高度 ( " / ":连接行标志，连接上下两行 )
| 123456 | #define kScreenWidth / ([[UIScreen mainScreen] respondsToSelector:@selector(nativeBounds)] ? [UIScreen mainScreen].nativeBounds.size.width/[UIScreen mainScreen].nativeScale : [UIScreen mainScreen].bounds.size.width) #define kScreenHeight / ([[UIScreen mainScreen] respondsToSelector:@selector(nativeBounds)] ? [UIScreen mainScreen].nativeBounds.size.height/[UIScreen mainScreen].nativeScale : [UIScreen mainScreen].bounds.size.height) #define kScreenSize / ([[UIScreen mainScreen] respondsToSelector:@selector(nativeBounds)] ? CGSizeMake([UIScreen mainScreen].nativeBounds.size.width/[UIScreen mainScreen].nativeScale,[UIScreen mainScreen].nativeBounds.size.height/[UIScreen mainScreen].nativeScale) : [UIScreen mainScreen].bounds.size) |
一些常用的缩写
| 12345 | #define kapplication [UIApplication sharedApplication] #define kKeyWindow [UIApplication sharedApplication].keyWindow #define kAppDelegate [UIApplication sharedApplication].delegate #define kUserDefaults [NSUserDefaults standardUserDefaults] #define kNotificationCenter [NSNotificationCenter defaultCenter] |
APP版本号
| 1 | #define kAppVersion [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"] |
系统版本号
| 1 | #define kSystemVersion [[UIDevice currentDevice] systemVersion] |
获取当前语言
| 1 | #define kCurrentLanguage ([[NSLocale PReferredLanguages] objectAtIndex:0]) |
判断是否为iphone
| 1 | #define kISiPhone (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) |
判断是否为iPad
| 1 | #define kISiPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) |
获取沙盒Document路径
| 1 | #define kDocumentPath [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject] |
获取沙盒temp路径
| 1 | #define kTempPath NSTemporaryDirectory() |
获取沙盒Cache路径
| 1 | #define kCachePath [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject] |
判断是真机还是模拟器
| 123456 | #if TARGET_OS_IPHONE //真机 #endif #if TARGET_IPHONE_SIMULATOR //模拟器 #endif |
开发的时候打印，但是发布的时候不打印的NSLog
| 12345 | #ifdef DEBUG #define NSLog(...) NSLog(@"%s 第%d行 /n %@/n/n",__func__,__LINE__,[NSString stringWithFormat:__VA_ARGS__]) #else #define NSLog(...) #endif |
颜色
| 1234567 | #define kRGBColor(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0] #define kRGBAColor(r, g, b, a) [UIColor colorWithRed:(r)/255.0 green:(r)/255.0 blue:(r)/255.0 alpha:a] #define kRandomColor KRGBColor(arc4random_uniform(256)/255.0,arc4random_uniform(256)/255.0,arc4random_uniform(256)/255.0) //随机色生成 #define kColorWithHex(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] |
弱引用/强引用
| 12 | #define kWeakSelf(type) __weak typeof(type) weak##type = type; #define kStrongSelf(type) __strong typeof(type) type = weak##type; |
由角度转换弧度
| 1 | #define kDegreesToRadian(x) (M_PI * (x) / 180.0) |
由弧度转换角度
| 1 | #define kRadianToDegrees(radian) (radian * 180.0) / (M_PI) |
获取一段时间间隔
| 12 | #define kStartTime CFAbsoluteTime start = CFAbsoluteTimeGetCurrent(); #define kEndTime NSLog(@"Time: %f", CFAbsoluteTimeGetCurrent() - start) |
宏（指令）定义
| 12 | #ifndef MacroDefinition_h // 如果没定义#define MacroDefinition_h |
获取设备尺寸大小
NavBar高度
| 1 | #define NavigationBar_HEIGHT 44 |
获取屏幕 宽度、高度
| 12 | #define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width) #define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height) |
打印日志
DEBUG 模式下打印日志,当前行
| 12345 | #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
| 12345 | #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
| 123456789101112131415161718 | #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.
| 12345 | #ifdef ITTDEBUG #define ITTDPRINT(xx, ...) NSLog(@"%s(%d): " xx, __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__) #else #define ITTDPRINT(xx, ...) ((void)0) #endif |
打印当前方法的名称
| 1 | #define ITTDPRINTMETHODNAME() ITTDPRINT(@"%s", __PRETTY_FUNCTION__) |
Log-level based logging macros.
| 123456789101112131415161718192021222324252627282930313233 | #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
是否iPad
| 1 | #define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) |
是否iPad
| 1 | #define someThing (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)? ipad: iphone |
获取系统版本
| 12 | #define IOS_VERSION ［[UIDevice currentDevice] systemVersion] floatValue] #define CurrentSystemVersion ［UIDevice currentDevice] systemVersion] |
获取当前语言
| 1 | #define CurrentLanguage (［NSLocale preferredLanguages] objectAtIndex:0]) |
判断是否 Retina屏、设备是否为iPone 5、是否是iPad
| 123 | #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) |
判断设备的操做系统是不是ios7
| 1 | #define IOS7 (［[UIDevice currentDevice].systemVersion doubleValue] >= 7.0] |
判断当前设备是不是iphone5
| 1 | #define kScreenIphone5 ((［UIScreen mainScreen] bounds].size.height)>=568) |
获取当前屏幕的高度
| 1 | #define kMainScreenHeight ([UIScreen mainScreen].applicationFrame.size.height) |
获取当前屏幕的宽度
| 1 | #define kMainScreenWidth ([UIScreen mainScreen].applicationFrame.size.width) |
定义一个define函数
| 1 | #define TT_RELEASE_CF_SAFELY(__REF) { if (nil != (__REF)) { CFRelease(__REF); __REF = nil; } } |
判断是真机还是模拟器
| 1234 | #if TARGET_OS_IPHONE //iPhone Device #endif #if TARGET_IPHONE_SIMULATOR //iPhone Simulator #endif |
检查系统版本
| 12345 | #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
使用ARC和不使用ARC
| 12345 | #if __has_feature(objc_arc) //compiling with ARC #else // compiling without ARC #endif |
| 12 | #pragma mark - common functions #define RELEASE_SAFELY(__POINTER) { [__POINTER release]; __POINTER = nil; } |
释放一个对象
| 12 | #define SAFE_DELETE(P) if(P) { [P release], P = nil; } #define SAFE_RELEASE(x) [x release];x=nil |
图片
读取本地图片
| 1 | #define LOADIMAGE(file,ext) [UIImage imageWithContentsOfFile:［NSBundle mainBundle]pathForResource:file ofType:ext］ |
定义UIImage对象
| 1 | #define IMAGE(A) [UIImage imageWithContentsOfFile:［NSBundle mainBundle] pathForResource:A ofType:nil］ |
定义UIImage对象
| 1 | #define ImageNamed(_pointer) [UIImage imageNamed:[UIUtil imageName:_pointer］ |
//建议使用前两种宏定义,性能高于后者
颜色类
rgb颜色转换（16进制->10进制）
| 1 | #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
| 1 | #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
| 12 | #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
| 1 | #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
| 1234 | #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
方正黑体简体字体定义
| 1 | #define FONT(F) [UIFont fontWithName:@"FZHTJW--GB1-0" size:F] |
定义一个API
| 1 | #define APIURL @"http://xxxxx/" |
登录API
| 1 | #define APILogin [APIURL stringByAppendingString:@"Login"] |
设置View的tag属性
| 1 | #define VIEWWITHTAG(_OBJECT, _TAG) [_OBJECT viewWithTag : _TAG] |
程序的本地化,引用国际化的文件
| 1 | #define MyLocal(x, ...) NSLocalizedString(x, nil) |
G－C－D
| 12 | #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
| 1 | #define USER_DEFAULT [NSUserDefaults standardUserDefaults] |
由角度获取弧度
| 1 | #define degreesToRadian(x) (M_PI * (x) / 180.0) |
由弧度获取角度
| 1 | #define radianToDegrees(radian) (radian*180.0)/(M_PI) |
单例化一个类
| 123456789101112131415161718192021222324252627282930313233343536 | #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 |
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