//屏幕尺寸

define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width

define SCREENH_HEIGHT [UIScreen mainScreen].bounds.size.height

//颜色

define RGB(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]

define RGBA(r, g, b, a) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:(a)]

//(随机色)

define LRRandomColor [UIColor colorWithRed:arc4random_uniform(256)/255.0 green:arc4random_uniform(256)/255.0 blue:arc4random_uniform(256)/255.0 alpha:1.0]

//常用工具类
//(弱引用/强引用)

define LRWeakSelf(type) __weak typeof(type) weak##type = type;

define LRStrongSelf(type) __strong typeof(type) strong##type = weak##type;

//设置 view 圆角和边框

define LRViewBorderRadius(View, Radius, Width, Color)\

[View.layer setCornerRadius:(Radius)];
[View.layer setMasksToBounds:YES];
[View.layer setBorderWidth:(Width)];
[View.layer setBorderColor:[Color CGColor]]

//APP版本号

define kAppVersion [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"]

//系统版本号

define kSystemVersion [[UIDevice currentDevice] systemVersion]

//获取当前语言

define kCurrentLanguage ([[NSLocale preferredLanguages] objectAtIndex:0])

//判断是否为iPhone

define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)

//判断是否为iPad

define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

//判断是否为ipod

define IS_IPOD ([[[UIDevice currentDevice] model] isEqualToString:@"iPod touch"])