///是否是iPad
#define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

---

///设备高度
#define SCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height
///设备宽度
#define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width

---

打印

#ifdef DEBUG
#define DLog( s, ... ) NSLog( @"<%p %@:(%d)> %@", self, [[NSString stringWithUTF8String:__FILE__] lastPathComponent], __LINE__, [NSString stringWithFormat:(s), ##__VA_ARGS__] )

#else
#define DLog( s, ... )
#endif

操作系统判断

//判断设备的操做系统是不是ios7
#define IOS7 ([[[UIDevice currentDevice].systemVersion doubleValue] >= 7.0]

判断iPhone X

#define SCREEN_MAX_LENGTH (MAX(SCREEN_WIDTH, SCREEN_HEIGHT))
#define IS_IPHONE_X (SCREEN_MAX_LENGTH == 812.0 ? YES : NO)

//NavBar高度
#define NavigationBar_HEIGHT 44

引用

#define WIDTH(view) view.frame.size.width
#define HEIGHT(view) view.frame.size.height
#define X(view) view.frame.origin.x
#define Y(view) view.frame.origin.y
#define LEFT(view) view.frame.origin.x
#define TOP(view) view.frame.origin.y
#define BOTTOM(view) (view.frame.origin.y + view.frame.size.height)
#define RIGHT(view) (view.frame.origin.x + view.frame.size.width)
#define HFrame(X,Y,W,H) CGRectMake((X),(Y),(W),(H))

RGB色值

#define RGB(r,g,b)[UIColor colorWithRed:r/255.0f green:g/255.0f blue:b/255.0f alpha:1]

读取本地图片 此方法性能优越于 UIImage imageNamed，它没有存储，适合大量的图片的获取应用，如果需要频繁使用还是用UIImage imageNamed，读取本地图片，取不到Assets.xcasets的图片，由于它不是文件目录

#define LOADIMAGE(file,ext) [UIImage imageWithContentsOfFile:[[NSBundle mainBundle]pathForResource:file ofType:ext]]

字符串和字体

#define FONT(F) [UIFont systemFontOfSize:F]
#define STRINGFORMART(D,F) [NSString stringWithFormat:D,F]

随机色

#define kRandColor [UIColor colorWithRed:arc4random() % 255 / 255.0f green:arc4random() % 255 / 255.0f blue:arc4random() % 255 / 255.0f alpha:1.0f]

---

其他的可以做一些常用色值，字号的存储