有没有办法在Swift中获得设备型号名称(iPhone 4S, iPhone 5, iPhone 5S等)?

我知道有一个名为UIDevice.currentDevice()的属性。模型,但它只返回设备类型(iPod touch, iPhone, iPad, iPhone模拟器等)。

我也知道在Objective-C中使用以下方法可以轻松完成:

#import <sys/utsname.h>

struct utsname systemInfo;
uname(&systemInfo);

NSString* deviceModel = [NSString stringWithCString:systemInfo.machine
                          encoding:NSUTF8StringEncoding];

但是我正在Swift中开发我的iPhone应用程序,所以有人可以帮助我用等效的方法在Swift中解决这个问题吗?


当前回答

我发现很多答案都用了字符串。我决定改变@HAS答案使用一个enum:

public enum Devices: String {
    case IPodTouch5
    case IPodTouch6
    case IPhone4
    case IPhone4S
    case IPhone5
    case IPhone5C
    case IPhone5S
    case IPhone6
    case IPhone6Plus
    case IPhone6S
    case IPhone6SPlus
    case IPhone7
    case IPhone7Plus
    case IPhoneSE
    case IPad2
    case IPad3
    case IPad4
    case IPadAir
    case IPadAir2
    case IPadMini
    case IPadMini2
    case IPadMini3
    case IPadMini4
    case IPadPro
    case AppleTV
    case Simulator
    case Other
}

public extension UIDevice {

    public var modelName: Devices {
        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 "iPod5,1":                                 return Devices.IPodTouch5
        case "iPod7,1":                                 return Devices.IPodTouch6
        case "iPhone3,1", "iPhone3,2", "iPhone3,3":     return Devices.IPhone4
        case "iPhone4,1":                               return Devices.IPhone4S
        case "iPhone5,1", "iPhone5,2":                  return Devices.IPhone5
        case "iPhone5,3", "iPhone5,4":                  return Devices.IPhone5C
        case "iPhone6,1", "iPhone6,2":                  return Devices.IPhone5S
        case "iPhone7,2":                               return Devices.IPhone6
        case "iPhone7,1":                               return Devices.IPhone6Plus
        case "iPhone8,1":                               return Devices.IPhone6S
        case "iPhone8,2":                               return Devices.IPhone6SPlus
        case "iPhone9,1", "iPhone9,3":                  return Devices.IPhone7
        case "iPhone9,2", "iPhone9,4":                  return Devices.IPhone7Plus
        case "iPhone8,4":                               return Devices.IPhoneSE
        case "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":return Devices.IPad2
        case "iPad3,1", "iPad3,2", "iPad3,3":           return Devices.IPad3
        case "iPad3,4", "iPad3,5", "iPad3,6":           return Devices.IPad4
        case "iPad4,1", "iPad4,2", "iPad4,3":           return Devices.IPadAir
        case "iPad5,3", "iPad5,4":                      return Devices.IPadAir2
        case "iPad2,5", "iPad2,6", "iPad2,7":           return Devices.IPadMini
        case "iPad4,4", "iPad4,5", "iPad4,6":           return Devices.IPadMini2
        case "iPad4,7", "iPad4,8", "iPad4,9":           return Devices.IPadMini3
        case "iPad5,1", "iPad5,2":                      return Devices.IPadMini4
        case "iPad6,3", "iPad6,4", "iPad6,7", "iPad6,8":return Devices.IPadPro
        case "AppleTV5,3":                              return Devices.AppleTV
        case "i386", "x86_64":                          return Devices.Simulator
        default:                                        return Devices.Other
        }
    }

}

其他回答

对于设备和模拟器, 创建一个名为UIDevice.swift的新swift文件

添加以下代码

import UIKit


public extension UIDevice {

var modelName: String {
    #if (arch(i386) || arch(x86_64)) && os(iOS)
        let DEVICE_IS_SIMULATOR = true
    #else
        let DEVICE_IS_SIMULATOR = false
    #endif

    var machineString : String = ""

    if DEVICE_IS_SIMULATOR == true
    {

        if let dir = NSProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] {
            machineString = dir
        }
    }
    else {
        var systemInfo = utsname()
        uname(&systemInfo)
        let machineMirror = Mirror(reflecting: systemInfo.machine)
        machineString = machineMirror.children.reduce("") { identifier, element in
            guard let value = element.value as? Int8 where value != 0 else { return identifier }
            return identifier + String(UnicodeScalar(UInt8(value)))
        }
    }
    switch machineString {
    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 "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":return "iPad 2"
    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 "iPad5,3", "iPad5,4":                      return "iPad Air 2"
    case "iPad2,5", "iPad2,6", "iPad2,7":           return "iPad Mini"
    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 "iPad6,7", "iPad6,8":                      return "iPad Pro"
    case "AppleTV5,3":                              return "Apple TV"
    default:                                        return machineString
    }
}
}

然后在你的视图控制器中,

 let deviceType = UIDevice.currentDevice().modelName

    if deviceType.lowercaseString.rangeOfString("iphone 4") != nil {
       print("iPhone 4 or iphone 4s")
    }
    else if deviceType.lowercaseString.rangeOfString("iphone 5") != nil {
        print("iPhone 5 or iphone 5s or iphone 5c")
    }
   else if deviceType.lowercaseString.rangeOfString("iphone 6") != nil {
        print("iPhone 6 Series")
    }

以下是2023年1月更新的解决方案。包括最新的iPhone、iPad、Watch、iPod、Apple TV和HomePod:

extension UIDevice {
    
    static var modelName: 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 {
            // MARK: - iPhone
            case "i386": return "iPhone Simulator"
            case "x86_64": return "iPhone Simulator"
            case "arm64": return "iPhone Simulator"
            case "iPhone1,1": return "iPhone"
            case "iPhone1,2": return "iPhone 3G"
            case "iPhone2,1": return "iPhone 3GS"
            case "iPhone3,1": return "iPhone 4"
            case "iPhone3,2": return "iPhone 4 GSM Rev A"
            case "iPhone3,3": return "iPhone 4 CDMA"
            case "iPhone4,1": return "iPhone 4S"
            case "iPhone5,1": return "iPhone 5 (GSM)"
            case "iPhone5,2": return "iPhone 5 (GSM+CDMA)"
            case "iPhone5,3": return "iPhone 5C (GSM)"
            case "iPhone5,4": return "iPhone 5C (Global)"
            case "iPhone6,1": return "iPhone 5S (GSM)"
            case "iPhone6,2": return "iPhone 5S (Global)"
            case "iPhone7,1": return "iPhone 6 Plus"
            case "iPhone7,2": return "iPhone 6"
            case "iPhone8,1": return "iPhone 6s"
            case "iPhone8,2": return "iPhone 6s Plus"
            case "iPhone8,4": return "iPhone SE (GSM)"
            case "iPhone9,1": return "iPhone 7"
            case "iPhone9,2": return "iPhone 7 Plus"
            case "iPhone9,3": return "iPhone 7"
            case "iPhone9,4": return "iPhone 7 Plus"
            case "iPhone10,1": return "iPhone 8"
            case "iPhone10,2": return "iPhone 8 Plus"
            case "iPhone10,3": return "iPhone X Global"
            case "iPhone10,4": return "iPhone 8"
            case "iPhone10,5": return "iPhone 8 Plus"
            case "iPhone10,6": return "iPhone X GSM"
            case "iPhone11,2": return "iPhone XS"
            case "iPhone11,4": return "iPhone XS Max"
            case "iPhone11,6": return "iPhone XS Max Global"
            case "iPhone11,8": return "iPhone XR"
            case "iPhone12,1": return "iPhone 11"
            case "iPhone12,3": return "iPhone 11 Pro"
            case "iPhone12,5": return "iPhone 11 Pro Max"
            case "iPhone12,8": return "iPhone SE 2nd Gen"
            case "iPhone13,1": return "iPhone 12 Mini"
            case "iPhone13,2": return "iPhone 12"
            case "iPhone13,3": return "iPhone 12 Pro"
            case "iPhone13,4": return "iPhone 12 Pro Max"
            case "iPhone14,2": return "iPhone 13 Pro"
            case "iPhone14,3": return "iPhone 13 Pro Max"
            case "iPhone14,4": return "iPhone 13 Mini"
            case "iPhone14,5": return "iPhone 13"
            case "iPhone14,6": return "iPhone SE 3rd Gen"
            case "iPhone14,7": return "iPhone 14"
            case "iPhone14,8": return "iPhone 14 Plus"
            case "iPhone15,2": return "iPhone 14 Pro"
            case "iPhone15,3": return "iPhone 14 Pro Max"
            
            // MARK: - iPod
            case "iPod1,1": return "1st Gen iPod"
            case "iPod2,1": return "2nd Gen iPod"
            case "iPod3,1": return "3rd Gen iPod"
            case "iPod4,1": return "4th Gen iPod"
            case "iPod5,1": return "5th Gen iPod"
            case "iPod7,1": return "6th Gen iPod"
            case "iPod9,1": return "7th Gen iPod"
            
            // MARK: - iPad
            case "iPad1,1": return "iPad"
            case "iPad1,2": return "iPad 3G"
            case "iPad2,1": return "2nd Gen iPad"
            case "iPad2,2": return "2nd Gen iPad GSM"
            case "iPad2,3": return "2nd Gen iPad CDMA"
            case "iPad2,4": return "2nd Gen iPad New Revision"
            case "iPad3,1": return "3rd Gen iPad"
            case "iPad3,2": return "3rd Gen iPad CDMA"
            case "iPad3,3": return "3rd Gen iPad GSM"
            case "iPad2,5": return "iPad mini"
            case "iPad2,6": return "iPad mini GSM+LTE"
            case "iPad2,7": return "iPad mini CDMA+LTE"
            case "iPad3,4": return "4th Gen iPad"
            case "iPad3,5": return "4th Gen iPad GSM+LTE"
            case "iPad3,6": return "4th Gen iPad CDMA+LTE"
            case "iPad4,1": return "iPad Air (WiFi)"
            case "iPad4,2": return "iPad Air (GSM+CDMA)"
            case "iPad4,3": return "1st Gen iPad Air (China)"
            case "iPad4,4": return "iPad mini Retina (WiFi)"
            case "iPad4,5": return "iPad mini Retina (GSM+CDMA)"
            case "iPad4,6": return "iPad mini Retina (China)"
            case "iPad4,7": return "iPad mini 3 (WiFi)"
            case "iPad4,8": return "iPad mini 3 (GSM+CDMA)"
            case "iPad4,9": return "iPad Mini 3 (China)"
            case "iPad5,1": return "iPad mini 4 (WiFi)"
            case "iPad5,2": return "4th Gen iPad mini (WiFi+Cellular)"
            case "iPad5,3": return "iPad Air 2 (WiFi)"
            case "iPad5,4": return "iPad Air 2 (Cellular)"
            case "iPad6,3": return "iPad Pro (9.7 inch, WiFi)"
            case "iPad6,4": return "iPad Pro (9.7 inch, WiFi+LTE)"
            case "iPad6,7": return "iPad Pro (12.9 inch, WiFi)"
            case "iPad6,8": return "iPad Pro (12.9 inch, WiFi+LTE)"
            case "iPad6,11": return "iPad (2017)"
            case "iPad6,12": return "iPad (2017)"
            case "iPad7,1": return "iPad Pro 2nd Gen (WiFi)"
            case "iPad7,2": return "iPad Pro 2nd Gen (WiFi+Cellular)"
            case "iPad7,3": return "iPad Pro 10.5-inch 2nd Gen"
            case "iPad7,4": return "iPad Pro 10.5-inch 2nd Gen"
            case "iPad7,5": return "iPad 6th Gen (WiFi)"
            case "iPad7,6": return "iPad 6th Gen (WiFi+Cellular)"
            case "iPad7,11": return "iPad 7th Gen 10.2-inch (WiFi)"
            case "iPad7,12": return "iPad 7th Gen 10.2-inch (WiFi+Cellular)"
            case "iPad8,1": return "iPad Pro 11 inch 3rd Gen (WiFi)"
            case "iPad8,2": return "iPad Pro 11 inch 3rd Gen (1TB, WiFi)"
            case "iPad8,3": return "iPad Pro 11 inch 3rd Gen (WiFi+Cellular)"
            case "iPad8,4": return "iPad Pro 11 inch 3rd Gen (1TB, WiFi+Cellular)"
            case "iPad8,5": return "iPad Pro 12.9 inch 3rd Gen (WiFi)"
            case "iPad8,6": return "iPad Pro 12.9 inch 3rd Gen (1TB, WiFi)"
            case "iPad8,7": return "iPad Pro 12.9 inch 3rd Gen (WiFi+Cellular)"
            case "iPad8,8": return "iPad Pro 12.9 inch 3rd Gen (1TB, WiFi+Cellular)"
            case "iPad8,9": return "iPad Pro 11 inch 4th Gen (WiFi)"
            case "iPad8,10": return "iPad Pro 11 inch 4th Gen (WiFi+Cellular)"
            case "iPad8,11": return "iPad Pro 12.9 inch 4th Gen (WiFi)"
            case "iPad8,12": return "iPad Pro 12.9 inch 4th Gen (WiFi+Cellular)"
            case "iPad11,1": return "iPad mini 5th Gen (WiFi)"
            case "iPad11,2": return "iPad mini 5th Gen"
            case "iPad11,3": return "iPad Air 3rd Gen (WiFi)"
            case "iPad11,4": return "iPad Air 3rd Gen"
            case "iPad11,6": return "iPad 8th Gen (WiFi)"
            case "iPad11,7": return "iPad 8th Gen (WiFi+Cellular)"
            case "iPad12,1": return "iPad 9th Gen (WiFi)"
            case "iPad12,2": return "iPad 9th Gen (WiFi+Cellular)"
            case "iPad14,1": return "iPad mini 6th Gen (WiFi)"
            case "iPad14,2": return "iPad mini 6th Gen (WiFi+Cellular)"
            case "iPad13,1": return "iPad Air 4th Gen (WiFi)"
            case "iPad13,2": return "iPad Air 4th Gen (WiFi+Cellular)"
            case "iPad13,4": return "iPad Pro 11 inch 5th Gen"
            case "iPad13,5": return "iPad Pro 11 inch 5th Gen"
            case "iPad13,6": return "iPad Pro 11 inch 5th Gen"
            case "iPad13,7": return "iPad Pro 11 inch 5th Gen"
            case "iPad13,8": return "iPad Pro 12.9 inch 5th Gen"
            case "iPad13,9": return "iPad Pro 12.9 inch 5th Gen"
            case "iPad13,10": return "iPad Pro 12.9 inch 5th Gen"
            case "iPad13,11": return "iPad Pro 12.9 inch 5th Gen"
            case "iPad13,16": return "iPad Air 5th Gen (WiFi)"
            case "iPad13,17": return "iPad Air 5th Gen (WiFi+Cellular)"
            case "iPad13,18": return "iPad 10th Gen"
            case "iPad13,19": return "iPad 10th Gen"
            case "iPad14,3": return "iPad Pro 11 inch 4th Gen"
            case "iPad14,4": return "iPad Pro 11 inch 4th Gen"
            case "iPad14,5": return "iPad Pro 12.9 inch 6th Gen"
            case "iPad14,6": return "iPad Pro 12.9 inch 6th Gen"
            
            // MARK: - Watch
            case "Watch1,1": return "Apple Watch 38mm case"
            case "Watch1,2": return "Apple Watch 42mm case"
            case "Watch2,6": return "Apple Watch Series 1 38mm case"
            case "Watch2,7": return "Apple Watch Series 1 42mm case"
            case "Watch2,3": return "Apple Watch Series 2 38mm case"
            case "Watch2,4": return "Apple Watch Series 2 42mm case"
            case "Watch3,1": return "Apple Watch Series 3 38mm case (GPS+Cellular)"
            case "Watch3,2": return "Apple Watch Series 3 42mm case (GPS+Cellular)"
            case "Watch3,3": return "Apple Watch Series 3 38mm case (GPS)"
            case "Watch3,4": return "Apple Watch Series 3 42mm case (GPS)"
            case "Watch4,1": return "Apple Watch Series 4 40mm case (GPS)"
            case "Watch4,2": return "Apple Watch Series 4 44mm case (GPS)"
            case "Watch4,3": return "Apple Watch Series 4 40mm case (GPS+Cellular)"
            case "Watch4,4": return "Apple Watch Series 4 44mm case (GPS+Cellular)"
            case "Watch5,1": return "Apple Watch Series 5 40mm case (GPS)"
            case "Watch5,2": return "Apple Watch Series 5 44mm case (GPS)"
            case "Watch5,3": return "Apple Watch Series 5 40mm case (GPS+Cellular)"
            case "Watch5,4": return "Apple Watch Series 5 44mm case (GPS+Cellular)"
            case "Watch5,9": return "Apple Watch SE 40mm case (GPS)"
            case "Watch5,10": return "Apple Watch SE 44mm case (GPS)"
            case "Watch5,11": return "Apple Watch SE 40mm case (GPS+Cellular)"
            case "Watch5,12": return "Apple Watch SE 44mm case (GPS+Cellular)"
            case "Watch6,1": return "Apple Watch Series 6 40mm case (GPS)"
            case "Watch6,2": return "Apple Watch Series 6 44mm case (GPS)"
            case "Watch6,3": return "Apple Watch Series 6 40mm case (GPS+Cellular)"
            case "Watch6,4": return "Apple Watch Series 6 44mm case (GPS+Cellular)"
            case "Watch6,6": return "Apple Watch Series 7 41mm case (GPS)"
            case "Watch6,7": return "Apple Watch Series 7 45mm case (GPS)"
            case "Watch6,8": return "Apple Watch Series 7 41mm case (GPS+Cellular)"
            case "Watch6,9": return "Apple Watch Series 7 45mm case (GPS+Cellular)"
            case "Watch6,10": return "Apple Watch SE 40mm case (GPS)"
            case "Watch6,11": return "Apple Watch SE 44mm case (GPS)"
            case "Watch6,12": return "Apple Watch SE 40mm case (GPS+Cellular)"
            case "Watch6,13": return "Apple Watch SE 44mm case (GPS+Cellular)"
            case "Watch6,14": return "Apple Watch Series 8 41mm case (GPS)"
            case "Watch6,15": return "Apple Watch Series 8 45mm case (GPS)"
            case "Watch6,16": return "Apple Watch Series 8 41mm case (GPS+Cellular)"
            case "Watch6,17": return "Apple Watch Series 8 45mm case (GPS+Cellular)"
            case "Watch6,18": return "Apple Watch Ultra"
            
            // MARK: - Apple TV
            case "AppleTV5,3": return "Apple TV"
            case "AppleTV6,2": return "Apple TV 4K"
            
            // MARK: - HomePod
            case "AudioAccessory1,1": return "HomePod"
            case "AudioAccessory5,1": return "HomePod mini"
            
            // MARK: - Unrecognized
            default: return identifier
        }
    }
}

用法:

UIDevice.modelName

当你使用Swift 3时,接受的答案有一些问题! 这个答案(灵感来自NAZIK)适用于Swift 3和新款iPhone:

import UIKit


public extension UIDevice {
var modelName: String {
    #if (arch(i386) || arch(x86_64)) && os(iOS)
        let DEVICE_IS_SIMULATOR = true
    #else
        let DEVICE_IS_SIMULATOR = false
    #endif

    var machineString = String()

    if DEVICE_IS_SIMULATOR == true
    {
        if let dir = ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] {
            machineString = dir
        }
    }
    else {
        var systemInfo = utsname()
        uname(&systemInfo)
        let machineMirror = Mirror(reflecting: systemInfo.machine)
        machineString = 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 machineString {
    case "iPod4,1":                                 return "iPod Touch 4G"
    case "iPod5,1":                                 return "iPod Touch 5G"
    case "iPod7,1":                                 return "iPod Touch 6G"
    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", "iPhone 9,4":                 return "iPhone 7 Plus"
    case "iPad2,1", "iPad2,2", "iPad2,3", "iPad2,4":return "iPad 2"
    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 "iPad5,3", "iPad5,4":                      return "iPad Air 2"
    case "iPad2,5", "iPad2,6", "iPad2,7":           return "iPad Mini"
    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 "iPad6,3", "iPad6,4":                      return "iPad Pro (9.7 inch)"
    case "iPad6,7", "iPad6,8":                      return "iPad Pro (12.9 inch)"
    case "AppleTV5,3":                              return "Apple TV"
    default:                                        return machineString
    }
}
}

使用Swift 3 (Xcode 8.3)

    func deviceName() -> String {
        var systemInfo = utsname()
        uname(&systemInfo)
        let str = withUnsafePointer(to: &systemInfo.machine.0) { ptr in
            return String(cString: ptr)
        }
        return str
    }

注意:根据官方开发论坛的回答,以这种方式使用元组是安全的。大Int8元组的内存对齐方式将与大Int8数组相同。即:连续且无填充。

我的简单解决方案是按设备分组,支持新设备iPhone 8和iPhone X在Swift 3:

public extension UIDevice {
    var modelName: 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 "iPhone3,1", "iPhone3,2", "iPhone3,3", "iPhone4,1":
            return "iPhone 4"

        case "iPhone5,1", "iPhone5,2", "iPhone5,3", "iPhone5,4", "iPhone6,1", "iPhone6,2", "iPhone8,4":
            return "iPhone 5"

        case "iPhone7,2", "iPhone8,1", "iPhone9,1", "iPhone9,3", "iPhone10,1", "iPhone10,4":
            return "iPhone 6,7,8"

        case "iPhone7,1", "iPhone8,2", "iPhone9,2", "iPhone9,4", "iPhone10,2", "iPhone10,5":
            return "iPhone Plus"

        case "iPhone10,3", "iPhone10,6":
            return "iPhone X"

        case "i386", "x86_64":
            return "Simulator"
        default:
            return identifier
        }
    }
}

和使用:

switch UIDevice.current.modelName {
  case "iPhone 4":
  case "iPhone 5":
  case "iPhone 6,7,8":
  case "iPhone Plus":
  case "iPhone X":
  case "Simulator":
  default:
}