iOS宏(自己使用,持续更新)

// 直接从RGB取颜色(RGB 0xFF00FF)
#define UICOLOR_FROM_RGB(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]

//获取当前屏幕尺寸
#define APP_HEIGHT  [UIScreen mainScreen].applicationFrame.size.height
#define SCR_HEIGHT  [UIScreen mainScreen].bounds.size.height
#define SCR_WIDTH   [UIScreen mainScreen].bounds.size.width

/**
 [宏函数]仅仅执行一回,但里面有一个for循环,可以执行些其他的操作
 
 loops --> 循环的次数
 label --> 变量的名字(该变量为static int型号)
 block --> 一个能传参数进去的block,传进去的参数为value
 
 使用示例(仅仅执行一回,但循环4次)
 EXECUTE_ONCE_FOR_SOME_LOOPS(4, labelName, labelName:^(int value){
 });
 */
#define EXECUTE_ONCE_FOR_SOME_LOOPS(loops, label, block)
static int label = 0;
for(; label < loops; label++){
block(label);
}

// 系统子线程池(并发执行)
#define SYS_CONCURRENT_QUEUE_H  dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0)
#define SYS_CONCURRENT_QUEUE_D  dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
#define SYS_CONCURRENT_QUEUE_L  dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_LOW, 0)
#define SYS_CONCURRENT_QUEUE_B  dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0)


// 系统主线程池(序列执行)
#define SYS_SERIAL_QUEUE      dispatch_get_main_queue()
#define SYS_UI_QUEUE          dispatch_get_main_queue()

//沙盒路径
#define SANDBOX_PATH        NSHomeDirectory()

原文地址:https://www.cnblogs.com/YouXianMing/p/3651251.html