iOS常用宏 定义
lrwd4969
7年前
<p>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。</p> <ul> <li> <p>字符串是否为空</p> </li> </ul> <pre> <code class="language-objectivec"> #define kStringIsEmpty(str) ([str isKindOfClass:[NSNull class]] || str == nil || [str length] < 1 ? YES : NO )</code></pre> <ul> <li> <p>数组是否为空</p> </li> </ul> <pre> <code class="language-objectivec"> #define kArrayIsEmpty(array) (array == nil || [array isKindOfClass:[NSNull class]] || array.count == 0)</code></pre> <ul> <li> <p>字典是否为空</p> </li> </ul> <pre> <code class="language-objectivec"> #define kDictIsEmpty(dic) (dic == nil || [dic isKindOfClass:[NSNull class]] || dic.allKeys == 0)</code></pre> <ul> <li> <p>是否是空对象</p> </li> </ul> <pre> <code class="language-objectivec"> #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))</code></pre> <ul> <li> <p>获取屏幕宽度与高度 ( " \ ":连接行标志，连接上下两行 )</p> </li> </ul> <pre> <code class="language-objectivec"> #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)</code></pre> <ul> <li> <p>一些常用的缩写</p> </li> </ul> <pre> <code class="language-objectivec"> #define kApplication [UIApplication sharedApplication] #define kKeyWindow [UIApplication sharedApplication].keyWindow #define kAppDelegate [UIApplication sharedApplication].delegate #define kUserDefaults [NSUserDefaults standardUserDefaults] #define kNotificationCenter [NSNotificationCenter defaultCenter]</code></pre> <ul> <li> <p>APP版本号</p> </li> </ul> <pre> <code class="language-objectivec"> #define kAppVersion [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"]</code></pre> <ul> <li> <p>系统版本号</p> </li> </ul> <pre> <code class="language-objectivec"> #define kSystemVersion [[UIDevice currentDevice] systemVersion]</code></pre> <ul> <li> <p>获取当前语言</p> </li> </ul> <pre> <code class="language-objectivec"> #define kCurrentLanguage ([[NSLocale preferredLanguages] objectAtIndex:0])</code></pre> <ul> <li> <p>判断是否为iPhone</p> </li> </ul> <pre> <code class="language-objectivec"> #define kISiPhone (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)</code></pre> <ul> <li> <p>判断是否为iPad</p> </li> </ul> <pre> <code class="language-objectivec"> #define kISiPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)</code></pre> <ul> <li> <p>获取沙盒Document路径</p> </li> </ul> <pre> <code class="language-objectivec"> #define kDocumentPath [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]</code></pre> <ul> <li> <p>获取沙盒temp路径</p> </li> </ul> <pre> <code class="language-objectivec"> #define kTempPath NSTemporaryDirectory()</code></pre> <ul> <li> <p>获取沙盒Cache路径</p> </li> </ul> <pre> <code class="language-objectivec"> #define kCachePath [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject]</code></pre> <ul> <li> <p>判断是真机还是模拟器</p> </li> </ul> <pre> <code class="language-objectivec"> #if TARGET_OS_IPHONE //真机 #endif #if TARGET_IPHONE_SIMULATOR //模拟器 #endif</code></pre> <ul> <li> <p>开发的时候打印，但是发布的时候不打印的NSLog</p> </li> </ul> <pre> <code class="language-objectivec"> #ifdef DEBUG #define NSLog(...) NSLog(@"%s 第%d行 \n %@\n\n",__func__,__LINE__,[NSString stringWithFormat:__VA_ARGS__]) #else #define NSLog(...) #endif</code></pre> <ul> <li> <p>颜色</p> </li> </ul> <pre> <code class="language-objectivec"> #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]</code></pre> <ul> <li> <p>弱引用/强引用</p> </li> </ul> <pre> <code class="language-objectivec"> #define kWeakSelf(type) __weak typeof(type) weak##type = type; #define kStrongSelf(type) __strong typeof(type) type = weak##type;</code></pre> <ul> <li> <p>由角度转换弧度</p> </li> </ul> <pre> <code class="language-objectivec"> #define kDegreesToRadian(x) (M_PI * (x) / 180.0)</code></pre> <ul> <li> <p>由弧度转换角度</p> </li> </ul> <pre> <code class="language-objectivec"> #define kRadianToDegrees(radian) (radian * 180.0) / (M_PI)</code></pre> <ul> <li> <p>获取一段时间间隔</p> </li> </ul> <pre> <code class="language-objectivec"> #define kStartTime CFAbsoluteTime start = CFAbsoluteTimeGetCurrent(); #define kEndTime NSLog(@"Time: %f", CFAbsoluteTimeGetCurrent() - start)</code></pre> <ul> <li> <p>宏（指令）定义</p> </li> </ul> <pre> <code class="language-objectivec">#ifndef MacroDefinition_h // 如果没定义 #define MacroDefinition_h</code></pre> <p>获取设备尺寸大小</p> <ul> <li> <p>NavBar高度</p> </li> </ul> <pre> <code class="language-objectivec"> #define NavigationBar_HEIGHT 44</code></pre> <ul> <li> <p>获取屏幕 宽度、高度</p> </li> </ul> <pre> <code class="language-objectivec"> #define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width) #define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)</code></pre> <p>打印日志</p> <ul> <li> <p>DEBUG 模式下打印日志,当前行</p> </li> </ul> <pre> <code class="language-objectivec"> #ifdef DEBUG # define DLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__); #else # define DLog(...) #endif</code></pre> <ul> <li> <p>重写NSLog,Debug模式下打印日志和当前行数</p> </li> </ul> <pre> <code class="language-objectivec"> #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</code></pre> <ul> <li> <p>DEBUG 模式下打印日志,当前行 并弹出一个警告</p> </li> </ul> <pre> <code class="language-objectivec">#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</code></pre> <ul> <li> <p>The general purpose logger. This ignores logging levels.</p> </li> </ul> <pre> <code class="language-objectivec"> #ifdef ITTDEBUG #define ITTDPRINT(xx, ...) NSLog(@"%s(%d): " xx, __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__) #else #define ITTDPRINT(xx, ...) ((void)0) #endif</code></pre> <ul> <li> <p>打印当前方法的名称</p> </li> </ul> <pre> <code class="language-objectivec"> #define ITTDPRINTMETHODNAME() ITTDPRINT(@"%s", __PRETTY_FUNCTION__)</code></pre> <ul> <li> <p>Log-level based logging macros.</p> </li> </ul> <pre> <code class="language-objectivec"> #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)</code></pre> <p>系统</p> <ul> <li> <p>是否iPad</p> </li> </ul> <pre> <code class="language-objectivec"> #define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)</code></pre> <ul> <li> <p>是否iPad</p> </li> </ul> <pre> <code class="language-objectivec"> #define someThing (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)? ipad: iphone</code></pre> <ul> <li> <p>获取系统版本</p> </li> </ul> <pre> <code class="language-objectivec"> #define IOS_VERSION ［[UIDevice currentDevice] systemVersion] floatValue] #define CurrentSystemVersion ［UIDevice currentDevice] systemVersion]</code></pre> <ul> <li> <p>获取当前语言</p> </li> </ul> <pre> <code class="language-objectivec"> #define CurrentLanguage (［NSLocale preferredLanguages] objectAtIndex:0])</code></pre> <ul> <li> <p>判断是否 Retina屏、设备是否为iPone 5、是否是iPad</p> </li> </ul> <pre> <code class="language-objectivec"> #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)</code></pre> <ul> <li> <p>判断设备的操做系统是不是ios7</p> </li> </ul> <pre> <code class="language-objectivec"> #define IOS7 (［[UIDevice currentDevice].systemVersion doubleValue] >= 7.0]</code></pre> <ul> <li> <p>判断当前设备是不是iphone5</p> </li> </ul> <pre> <code class="language-objectivec"> #define kScreenIphone5 ((［UIScreen mainScreen] bounds].size.height)>=568)</code></pre> <ul> <li> <p>获取当前屏幕的高度</p> </li> </ul> <pre> <code class="language-objectivec"> #define kMainScreenHeight ([UIScreen mainScreen].applicationFrame.size.height)</code></pre> <ul> <li> <p>获取当前屏幕的宽度</p> </li> </ul> <pre> <code class="language-objectivec"> #define kMainScreenWidth ([UIScreen mainScreen].applicationFrame.size.width)</code></pre> <ul> <li> <p>定义一个define函数</p> </li> </ul> <pre> <code class="language-objectivec"> #define TT_RELEASE_CF_SAFELY(__REF) { if (nil != (__REF)) { CFRelease(__REF); __REF = nil; } }</code></pre> <ul> <li> <p>判断是真机还是模拟器</p> </li> </ul> <pre> <code class="language-objectivec"> #if TARGET_OS_IPHONE //iPhone Device #endif #if TARGET_IPHONE_SIMULATOR //iPhone Simulator #endif</code></pre> <ul> <li> <p>检查系统版本</p> </li> </ul> <pre> <code class="language-objectivec"> #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)</code></pre> <p>内存</p> <ul> <li> <p>使用ARC和不使用ARC</p> </li> </ul> <pre> <code class="language-objectivec"> #if __has_feature(objc_arc) //compiling with ARC #else // compiling without ARC #endif</code></pre> <pre> <code class="language-objectivec"> #pragma mark - common functions #define RELEASE_SAFELY(__POINTER) { [__POINTER release]; __POINTER = nil; }</code></pre> <ul> <li> <p>释放一个对象</p> </li> </ul> <pre> <code class="language-objectivec"> #define SAFE_DELETE(P) if(P) { [P release], P = nil; } #define SAFE_RELEASE(x) [x release];x=nil</code></pre> <p>图片</p> <ul> <li> <p>读取本地图片</p> </li> </ul> <pre> <code class="language-objectivec"> #define LOADIMAGE(file,ext) [UIImage imageWithContentsOfFile:［NSBundle mainBundle]pathForResource:file ofType:ext］</code></pre> <ul> <li> <p>定义UIImage对象</p> </li> </ul> <pre> <code class="language-objectivec"> #define IMAGE(A) [UIImage imageWithContentsOfFile:［NSBundle mainBundle] pathForResource:A ofType:nil］</code></pre> <ul> <li> <p>定义UIImage对象</p> </li> </ul> <pre> <code class="language-objectivec"> #define ImageNamed(_pointer) [UIImage imageNamed:[UIUtil imageName:_pointer］</code></pre> <p>//建议使用前两种宏定义,性能高于后者</p> <p>颜色类</p> <ul> <li> <p>rgb颜色转换（16进制->10进制）</p> </li> </ul> <pre> <code class="language-objectivec"> #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]</code></pre> <ul> <li> <p>带有RGBA的颜色设置</p> </li> </ul> <pre> <code class="language-objectivec"> #define COLOR(R, G, B, A) [UIColor colorWithRed:R/255.0 green:G/255.0 blue:B/255.0 alpha:A]</code></pre> <ul> <li> <p>获取RGB颜色</p> </li> </ul> <pre> <code class="language-objectivec"> #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)</code></pre> <ul> <li> <p>背景色</p> </li> </ul> <pre> <code class="language-objectivec"> #define BACKGROUND_COLOR [UIColor colorWithRed:242.0/255.0 green:236.0/255.0 blue:231.0/255.0 alpha:1.0]</code></pre> <ul> <li> <p>清除背景色</p> </li> </ul> <pre> <code class="language-objectivec"> #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)]</code></pre> <p>其他</p> <ul> <li> <p>方正黑体简体字体定义</p> </li> </ul> <pre> <code class="language-objectivec"> #define FONT(F) [UIFont fontWithName:@"FZHTJW--GB1-0" size:F]</code></pre> <ul> <li> <p>定义一个API</p> </li> </ul> <pre> <code class="language-objectivec"> #define APIURL @"http://xxxxx/"</code></pre> <ul> <li> <p>登录API</p> </li> </ul> <pre> <code class="language-objectivec"> #define APILogin [APIURL stringByAppendingString:@"Login"]</code></pre> <ul> <li> <p>设置View的tag属性</p> </li> </ul> <pre> <code class="language-objectivec"> #define VIEWWITHTAG(_OBJECT, _TAG) [_OBJECT viewWithTag : _TAG]</code></pre> <ul> <li> <p>程序的本地化,引用国际化的文件</p> </li> </ul> <pre> <code class="language-objectivec"> #define MyLocal(x, ...) NSLocalizedString(x, nil)</code></pre> <ul> <li> <p>G－C－D</p> </li> </ul> <pre> <code class="language-objectivec"> #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)</code></pre> <ul> <li> <p>NSUserDefaults 实例化</p> </li> </ul> <pre> <code class="language-objectivec"> #define USER_DEFAULT [NSUserDefaults standardUserDefaults]</code></pre> <ul> <li> <p>由角度获取弧度</p> </li> </ul> <pre> <code class="language-objectivec"> #define degreesToRadian(x) (M_PI * (x) / 180.0)</code></pre> <ul> <li> <p>由弧度获取角度</p> </li> </ul> <pre> <code class="language-objectivec"> #define radianToDegrees(radian) (radian*180.0)/(M_PI)</code></pre> <ul> <li> <p>单例化一个类</p> </li> </ul> <pre> <code class="language-objectivec"> #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</code></pre> <p> </p> <p>来自：http://www.cocoachina.com/ios/20161207/18310.html</p> <p> </p>