Objective-C常用宏定义

来源：互联网发布：如何看待网络语言作文编辑：程序博客网时间：2024/06/06 09:09

看到LvesLi’s Blogging分享的一些Objective-C常用宏定义，非常好用，记录于此：

//1. 打印日志#ifdef DEBUG#    define DLog(...) NSLog(__VA_ARGS__)#else#    define DLog(...)#endif//2. 获取屏幕 宽度、高度#define kScreenWidth ([UIScreen mainScreen].bounds.size.width)#define kScreenHeight ([UIScreen mainScreen].bounds.size.height)//3. 颜色#define RGB(r, g, b, a)  [UIColor colorWithRed:r/255.0f green:g/255.0f blue:b/255.0f alpha:a]#define HEXCOLOR(c)       [UIColor colorWithRed:((c>>16)&0xFF)/255.0f green:((c>>8)&0xFF)/255.0f blue:(c&0xFF)/255.0f alpha: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] //4.加载图片宏：#define LOADIMAGE(file,type) [UIImage imageWithContentsOfFile:[[NSBundle mainBundle]pathForResource:file ofType:type]]//5. NavBar高度#define NavigationBar_HEIGHT 44//6. 获取系统版本#define IOS_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]#define CurrentSystemVersion [[UIDevice currentDevice] systemVersion]//7. 判断是真机还是模拟器#if TARGET_OS_IPHONE    //iPhone Device#endif#if TARGET_IPHONE_SIMULATOR   //iPhone Simulator#endif//8. 设置View的tag属性#define VIEWWITHTAG(_OBJECT, _TAG)    [_OBJECT viewWithTag : _TAG]//9. GCD#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)//10. NSUserDefaults 实例化#define USER_DEFAULT [NSUserDefaults standardUserDefaults]

博文原地址：Objective-C 预处理器(The Preprocessor)

0 0