Swift 判断设备型号

在做项目中需要对设备来区别处理，这里就需要判断设备的型号，这里是写的比较全的设备判断代码。记录一下。

public extension UIDevice {
    var deviceName: String {
        
        var systemInfo = utsname()
        uname(&systemInfo)
        
        let machineMirror = Mirror(reflecting: systemInfo.machine)
        let identifier = machineMirror.children.reduce("") {identifier, element  in
            guard let value = element.value as? Int8, value != 0 else {
                return identifier
            }
            return identifier + String(UnicodeScalar(UInt8(value)))
        }
        
        switch identifier {
        case "iPod1,1":  return "iPod Touch 1"
        case "iPod2,1":  return "iPod Touch 2"
        case "iPod3,1":  return "iPod Touch 3"
        case "iPod4,1":  return "iPod Touch 4"
        case "iPod5,1":  return "iPod Touch (5 Gen)"
        case "iPod7,1":   return "iPod Touch 6"
            
        case "iPhone3,1", "iPhone3,2", "iPhone3,3":  return "iPhone 4"
        case "iPhone4,1":  return "iPhone 4s"
        case "iPhone5,1":   return "iPhone 5"
        case  "iPhone5,2":  return "iPhone 5 (GSM+CDMA)"
        case "iPhone5,3":  return "iPhone 5c (GSM)"
        case "iPhone5,4":  return "iPhone 5c (GSM+CDMA)"
        case "iPhone6,1":  return "iPhone 5s (GSM)"
        case "iPhone6,2":  return "iPhone 5s (GSM+CDMA)"
        case "iPhone7,2":  return "iPhone 6"
        case "iPhone7,1":  return "iPhone 6 Plus"
        case "iPhone8,1":  return "iPhone 6s"
        case "iPhone8,2":  return "iPhone 6s Plus"
        case "iPhone8,4":  return "iPhone SE"
        case "iPhone9,1":  return "国行、日版、港行iPhone 7"
        case "iPhone9,2":  return "港行、国行iPhone 7 Plus"
        case "iPhone9,3":  return "美版、台版iPhone 7"
        case "iPhone9,4":  return "美版、台版iPhone 7 Plus"
        case "iPhone10,1","iPhone10,4":   return "iPhone 8"
        case "iPhone10,2","iPhone10,5":   return "iPhone 8 Plus"
        case "iPhone10,3","iPhone10,6":   return "iPhone X"
            
        case "iPad1,1":   return "iPad"
        case "iPad1,2":   return "iPad 3G"
        case "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":   return "iPad 2"
        case "iPad2,5", "iPad2,6", "iPad2,7":  return "iPad Mini"
        case "iPad3,1", "iPad3,2", "iPad3,3":  return "iPad 3"
        case "iPad3,4", "iPad3,5", "iPad3,6":   return "iPad 4"
        case "iPad4,1", "iPad4,2", "iPad4,3":   return "iPad Air"
        case "iPad4,4", "iPad4,5", "iPad4,6":  return "iPad Mini 2"
        case "iPad4,7", "iPad4,8", "iPad4,9":  return "iPad Mini 3"
        case "iPad5,1", "iPad5,2":  return "iPad Mini 4"
        case "iPad5,3", "iPad5,4":   return "iPad Air 2"
        case "iPad6,3", "iPad6,4":  return "iPad Pro 9.7"
        case "iPad6,7", "iPad6,8":  return "iPad Pro 12.9"
        case "AppleTV2,1":  return "Apple TV 2"
        case "AppleTV3,1","AppleTV3,2":  return "Apple TV 3"
        case "AppleTV5,3":   return "Apple TV 4"
        case "i386", "x86_64":   return "Simulator"
        default:  return identifier
        }
    }
}