• 手机系统

#define IS_PAD   (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#define IS_IOS7  ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7)
#define IS_IOS8  ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8)
#define IS_IOS9  ([[[UIDevice currentDevice] systemVersion] floatValue] >= 9)
#define IS_IOS10 ([[[UIDevice currentDevice] systemVersion] floatValue] >= 10)
#define IS_IOS11 ([[[UIDevice currentDevice] systemVersion] floatValue] >= 11)

• 手机系统版本，如9.3

#define kSystemVersion [[UIDevice currentDevice] systemVersion]

• 系统名称，如iOS

#define kSystemName [[UIDevice currentDevice] systenName]

• UUID

#define UUID [UIDevice currentDevice].identifierForVendor.UUIDString

• APP版本号

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

• 色值

#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]
#define HEX(hexValue) [UIColor colorWithRed:((float)((hexValue & 0xFF0000) >> 16))/255.0 green:((float)((hexValue & 0xFF00) >> 8))/255.0 blue:((float)(hexValue & 0xFF))/255.0 alpha:1.0]
#define HEXA(hexValue, a) [UIColor colorWithRed:((float)((hexValue & 0xFF0000) >> 16))/255.0 green:((float)((hexValue & 0xFF00) >> 8))/255.0 blue:((float)(hexValue & 0xFF))/255.0 alpha:a]

• 字体大小(常规/粗体)

#define FONT(NAME, FONTSIZE)     [UIFont fontWithName:(NAME) size:(FONTSIZE)]
#define SYSTEMFONT(FONTSIZE)     [UIFont systemFontOfSize:FONTSIZE]
#define BOLDSYSTEMFONT(FONTSIZE) [UIFont boldSystemFontOfSize:FONTSIZE]

• 不同屏幕适配

#define kScreenWidthRatio        (Main_Screen_Width / 375.0)
#define kScreenHeightRatio       (Main_Screen_Height / 667.0)
#define AdaptedFont(font)        SYSTEMFONT(AdaptedWidth(font))
#define AdaptedWidth(width)      ceilf((width) * kScreenWidthRatio)
#define AdaptedHeight(height)    ceilf((height) * kScreenHeightRatio)

• 屏幕宽高

#define kScreenWidth [UIScreen mainScreen].bounds.size.width
#define kScreenHeight [UIScreen mainScreen].bounds.size.height

• 状态栏高度

#define kStatusBarHeight [UIApplicationsharedApplication].statusBarFrame.size.height

• 导航栏高度（包含状态栏）

#define kNavBar_Height (kStatusBar_Height + 44)

• TabBar高度

#define kTabBarHeight (CGFloat)([[CommonUtility phoneModel] isEqualToString:@"iPhone X"]?(49+34):(49))

• Application

#define kApplication [UIApplication sharedApplication]

• AppDelegate

#define kAppDelegate ((AppDelegate *)[[UIApplication sharedApplication] delegate])

• Window

#define kKeyWindow   [UIApplication sharedApplication].keyWindow

• Temp 文件路径

#define kPathTemp NSTemporaryDirectory()

• Document 文件路径

#define kPathDocument [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]

• Cache 文件路径

#define kPathCache [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject]

• 弱引用强引用

//可配对引用在外面用weakSelf(self)，block用strongSelf(self)
//也可以单独引用在外面用weakSelf(self) block里面用weakself
#define weakSelf(type)  __weak typeof(type) weak##type = type;
#define strongSelf(type)  __strong typeof(type) type = weak##type;

• 由角度转换弧度

#define kAngleToRadian(x)      (M_PI * (x) / 180.0)

• 由弧度转换角度

#define kRadianToAngle(radian) (radian * 180.0) / (M_PI)