iPhone设备 物理分辨率是硬件所支持的，逻辑分辨率是软件可以达到的。 如图所示： iPhone5和6的比例是不变的。 iPod设备 iPad设备 所有设备型号官网地址：https://www.theiphonewiki.com/wiki/Models //获得屏幕的宽高 #define kScreenWidth ([UIScreen mainScreen].bounds.size.width) #define kScreenHeight ([UIScreen mainScreen].bounds.size.height) //iPhoneX / iPhoneXS #define isIphoneX_XS (kScreenWidth == 375.f && kScreenHeight == 812.f ? YES : NO) //iPhoneXR / iPhoneXSMax #define isIphoneXR_XSMax (kScreenWidth == 414.f && kScreenHeight == 896.f ? YES : NO) //异性全面屏 #define isFullScreen (isIphoneX_XS || isIphoneXR_XSMax)

// Status bar height. #define StatusBarHeight (isFullScreen ? 44.f : 20.f)

// Navigation bar height. #define NavigationBarHeight 44.f

// Tabbar height. #define TabbarHeight (isFullScreen ? (49.f+34.f) : 49.f)

// Tabbar safe bottom margin. #define TabbarSafeBottomMargin (isFullScreen ? 34.f : 0.f)

// Status bar & navigation bar height. #define StatusBarAndNavigationBarHeight (isFullScreen ? 88.f : 64.f)