DeviceInfo.swift

// 一些设备通用消息 //

struct DeviceInfo {

    //获取设备名称 例如：elan的手机
    static let deviceName = UIDevice.current.name

    //获取系统版本 例如：10.3
    static let sysVersion = UIDevice.current.systemVersion

    //获取设备的型号 例如：iPhone 7 Plus
    static let deviceModel = UIDevice.current.modelName

    /// 例如：iPhone9,2
    static let model: String = {
        var size = 0
        sysctlbyname("hw.machine", nil, &size, nil, 0)
        var machine = [CChar](repeating: 0,  count: Int(size))
        sysctlbyname("hw.machine", &machine, &size, nil, 0)
        return String(cString: machine)
    }()

    /// 另一种获取model的方法（结果同上）
    static let anotherModel: 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)))
        }
        return identifier
    }


    /// 判断是否在模拟器上运行
    static let isSimulator: Bool = {
        #if arch(i386) || arch(x86_64)
            return true
        #else
            return false
        #endif
    }()
}


extension UIDevice {

    var modelName: String {
        // 数据来源：https://www.theiphonewiki.com/wiki/Models
        switch DeviceInfo.anotherModel {

        case "iPod5,1":                                         return "iPod Touch 5"
        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", "iPhone5,2":                          return "iPhone 5"
        case "iPhone5,3", "iPhone5,4":                          return "iPhone 5c"
        case "iPhone6,1", "iPhone6,2":                          return "iPhone 5s"
        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", "iPhone9,3":                          return "iPhone 7"
        case "iPhone9,2", "iPhone9,4":                          return "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 "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-inch)"
        case "iPad6,7", "iPad6,8":                              return "iPad Pro (12.9-inch)"
        case "iPad6,11", "iPad6,12":                            return "iPad 5"
        case "iPad7,1", "iPad7,2":                              return "iPad Pro 2 (12.9-inch)"
        case "iPad7,3", "iPad7,4":                              return "iPad Pro (10.5-inch)"

        case "AppleTV2,1":                  return "Apple TV 2"
        case "AppleTV3,1", "AppleTV3,2":    return "Apple TV 3"
        case "AppleTV5,3":                  return "Apple TV 4"
        case "AppleTV6,2":                  return "Apple TV 4K"

        case "Watch1,1":                    return "Apple Watch 1 (38mm)"
        case "Watch1,2":                    return "Apple Watch 1 (42mm)"
        case "Watch2,6":                    return "Apple Watch Series 1 (38mm)"
        case "Watch2,7":                    return "Apple Watch Series 1 (42mm)"
        case "Watch2,3":                    return "Apple Watch Series 2 (38mm)"
        case "Watch2,4":                    return "Apple Watch Series 2 (42mm)"
        case "Watch3,1", "Watch3,3":        return "Apple Watch Series 3 (38mm)"
        case "Watch3,2", "Watch3,4":        return "Apple Watch Series 3 (42mm)"

        case "i386", "x86_64":              return "Simulator"

        default:                            return identifier
        }
    }
}