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一些常用的宏定义(很有用,很有效噢)
// 安全释放 #define RELEASE_SAFELY(__Pointer) do{[__Pointer release],__Pointer = nil;} while(0) // 屏幕的物理高度 #define ScreenHeight [UIScreen mainScreen].bounds.size.height // 屏幕的物理宽度 #define ScreenWidth [UIScreen mainScreen].bounds.size.width // 调试 #define NSLOG_FUNCTION NSLog(@"%s,%d",__FUNCTION__,__LINE__) //----------------------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:_pointer] //———————————————————————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)] //———————————————————————TAG宏———————————————————————————-----————————————— //viewWithTag #define VIEWWITHTAG(_OBJECT, _TAG) [_OBJECT viewWithTag : _TAG] //———————————————————————单例模式宏———————————————————————————-----————————————— //.h文件处的声明 #define DEFINE_SINGLETON_FOR_HEADER(className) + (className *)shared##className; //.m文件处的声明 #define DEFINE_SINGLETON_FOR_CLASS(className) + (className *)shared##className { static className *shared##className = nil; static dispatch_once_t onceToken; dispatch_once(&onceToken, ^{ shared##className = [[self alloc] init]; }); return shared##className; } //———————————————————————单例模式———————————————————————————-----————————————— static DataBaseHandle * handle = nil; + (DataBaseHandle *)shareInstance { @synchronized(self){ if (!handle) { handle = [[DataBaseHandle alloc] init]; } } return handle; } —————————————不用你把所有NSLog的删除或注释,直接修改#if 判断的值就行了(1执行,0不执行)—————————————— #if 1 #define NSLog(FORMAT, ...) fprintf(stderr,"[%s:%d行] %s\n",[[[NSString stringWithUTF8String:__FILE__] lastPathComponent] UTF8String], __LINE__, [[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]); #else #define NSLog(FORMAT, ...) nil #endif #define NEED_OUTPUT_LOG 0 #if NEED_OUTPUT_LOG #define SLog(xx, ...) NSLog(xx, ##__VA_ARGS__) #define SLLog(xx, ...) NSLog(@"%s(%d): " xx, __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__) #define SLLogRect(rect) SLLog(@"%s x=%f, y=%f, w=%f, h=%f", #rect, rect.origin.x, rect.origin.y, rect.size.width, rect.size.height) #define SLLogPoint(pt) SLLog(@"%s x=%f, y=%f", #pt, pt.x, pt.y) #define SLLogSize(size) SLLog(@"%s w=%f, h=%f", #size, size.width, size.height) #define SLLogColor(_COLOR) SLLog(@"%s h=%f, s=%f, v=%f", #_COLOR, _COLOR.hue, _COLOR.saturation, _COLOR.value) #define SLLogSuperViews(_VIEW) { for (UIView* view = _VIEW; view; view = view.superview) { SLLog(@"%@", view); } } #define SLLogSubViews(_VIEW) { for (UIView* view in [_VIEW subviews]) { SLLog(@"%@", view); } } #else #define SLog(xx, ...) ((void)0) #define SLLog(xx, ...) ((void)0) #endif
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