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

基于这个答案和这个答案。我创造了一个公共主旨

如何使用它

let boolean: Bool = UIDevice.isDevice(ofType: .iPhoneX)
// true or false

let specificDevice: DeviceModel.Model = UIDevice.modelType
// iPhone6s, iPhoneX, iPad etc...

let model: DeviceModel = UIDevice.model
// .simulator(let specificDevice), .real(let specificDevice),
// .unrecognizedSimulator(let string), .unrecognized(let string)

let modelName: String = UIDevice.model.name
// iPhone 6, iPhone X, etc...

这是要点里面的代码

public extension UIDevice {
    public static var modelCode: String {
        if let simulatorModelIdentifier = ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] { return simulatorModelIdentifier }
        var systemInfo = utsname()
        uname(&systemInfo)
        return withUnsafeMutablePointer(to: &systemInfo.machine) {
            ptr in String(cString: UnsafeRawPointer(ptr).assumingMemoryBound(to: CChar.self))
        }
    }

    public static var model: DeviceModel {
        // Thanks https://stackoverflow.com/a/26962452/5928180
        var systemInfo = utsname()
        uname(&systemInfo)
        let modelCode = withUnsafeMutablePointer(to: &systemInfo.machine) {
            ptr in String(cString: UnsafeRawPointer(ptr).assumingMemoryBound(to: CChar.self))
        }

        // Thanks https://stackoverflow.com/a/33495869/5928180
        if modelCode == "i386" || modelCode == "x86_64" {
            if let simulatorModelCode = ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"], let model = DeviceModel.Model(modelCode: simulatorModelCode) {
                return DeviceModel.simulator(model)
            } else if let simulatorModelCode = ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"] {
                return DeviceModel.unrecognizedSimulator(simulatorModelCode)
            } else {
                return DeviceModel.unrecognized(modelCode)
            }
        } else if let model = DeviceModel.Model(modelCode: modelCode) {
            return DeviceModel.real(model)
        } else {
            return DeviceModel.unrecognized(modelCode)
        }
    }

    public static var modelType: DeviceModel.Model? {
        return UIDevice.model.model
    }

    public static func isDevice(ofType model: DeviceModel.Model) -> Bool {
        return UIDevice.modelType == model
    }
}


public enum DeviceModel {
    case simulator(Model)
    case unrecognizedSimulator(String)
    case real(Model)
    case unrecognized(String)

    public enum Model: String {
        case iPod1            = "iPod 1"
        case iPod2            = "iPod 2"
        case iPod3            = "iPod 3"
        case iPod4            = "iPod 4"
        case iPod5            = "iPod 5"
        case iPad2            = "iPad 2"
        case iPad3            = "iPad 3"
        case iPad4            = "iPad 4"
        case iPhone4          = "iPhone 4"
        case iPhone4S         = "iPhone 4S"
        case iPhone5          = "iPhone 5"
        case iPhone5S         = "iPhone 5S"
        case iPhone5C         = "iPhone 5C"
        case iPadMini1        = "iPad Mini 1"
        case iPadMini2        = "iPad Mini 2"
        case iPadMini3        = "iPad Mini 3"
        case iPadAir1         = "iPad Air 1"
        case iPadAir2         = "iPad Air 2"
        case iPadPro9_7       = "iPad Pro 9.7\""
        case iPadPro9_7_cell  = "iPad Pro 9.7\" cellular"
        case iPadPro10_5      = "iPad Pro 10.5\""
        case iPadPro10_5_cell = "iPad Pro 10.5\" cellular"
        case iPadPro12_9      = "iPad Pro 12.9\""
        case iPadPro12_9_cell = "iPad Pro 12.9\" cellular"
        case iPhone6          = "iPhone 6"
        case iPhone6plus      = "iPhone 6 Plus"
        case iPhone6S         = "iPhone 6S"
        case iPhone6Splus     = "iPhone 6S Plus"
        case iPhoneSE         = "iPhone SE"
        case iPhone7          = "iPhone 7"
        case iPhone7plus      = "iPhone 7 Plus"
        case iPhone8          = "iPhone 8"
        case iPhone8plus      = "iPhone 8 Plus"
        case iPhoneX          = "iPhone X"

        init?(modelCode: String) {
            switch modelCode {
            case "iPod1,1":    self = .iPod1
            case "iPod2,1":    self = .iPod2
            case "iPod3,1":    self = .iPod3
            case "iPod4,1":    self = .iPod4
            case "iPod5,1":    self = .iPod5
            case "iPad2,1":    self = .iPad2
            case "iPad2,2":    self = .iPad2
            case "iPad2,3":    self = .iPad2
            case "iPad2,4":    self = .iPad2
            case "iPad2,5":    self = .iPadMini1
            case "iPad2,6":    self = .iPadMini1
            case "iPad2,7":    self = .iPadMini1
            case "iPhone3,1":  self = .iPhone4
            case "iPhone3,2":  self = .iPhone4
            case "iPhone3,3":  self = .iPhone4
            case "iPhone4,1":  self = .iPhone4S
            case "iPhone5,1":  self = .iPhone5
            case "iPhone5,2":  self = .iPhone5
            case "iPhone5,3":  self = .iPhone5C
            case "iPhone5,4":  self = .iPhone5C
            case "iPad3,1":    self = .iPad3
            case "iPad3,2":    self = .iPad3
            case "iPad3,3":    self = .iPad3
            case "iPad3,4":    self = .iPad4
            case "iPad3,5":    self = .iPad4
            case "iPad3,6":    self = .iPad4
            case "iPhone6,1":  self = .iPhone5S
            case "iPhone6,2":  self = .iPhone5S
            case "iPad4,1":    self = .iPadAir1
            case "iPad4,2":    self = .iPadAir2
            case "iPad4,4":    self = .iPadMini2
            case "iPad4,5":    self = .iPadMini2
            case "iPad4,6":    self = .iPadMini2
            case "iPad4,7":    self = .iPadMini3
            case "iPad4,8":    self = .iPadMini3
            case "iPad4,9":    self = .iPadMini3
            case "iPad6,3":    self = .iPadPro9_7
            case "iPad6,11":   self = .iPadPro9_7
            case "iPad6,4":    self = .iPadPro9_7_cell
            case "iPad6,12":   self = .iPadPro9_7_cell
            case "iPad6,7":    self = .iPadPro12_9
            case "iPad6,8":    self = .iPadPro12_9_cell
            case "iPad7,3":    self = .iPadPro10_5
            case "iPad7,4":    self = .iPadPro10_5_cell
            case "iPhone7,1":  self = .iPhone6plus
            case "iPhone7,2":  self = .iPhone6
            case "iPhone8,1":  self = .iPhone6S
            case "iPhone8,2":  self = .iPhone6Splus
            case "iPhone8,4":  self = .iPhoneSE
            case "iPhone9,1":  self = .iPhone7
            case "iPhone9,2":  self = .iPhone7plus
            case "iPhone9,3":  self = .iPhone7
            case "iPhone9,4":  self = .iPhone7plus
            case "iPhone10,1": self = .iPhone8
            case "iPhone10,2": self = .iPhone8plus
            case "iPhone10,3": self = .iPhoneX
            case "iPhone10,6": self = .iPhoneX
            default:           return nil
            }
        }
    }

    public var name: String {
        switch self {
        case .simulator(let model):         return "Simulator[\(model.rawValue)]"
        case .unrecognizedSimulator(let s): return "UnrecognizedSimulator[\(s)]"
        case .real(let model):              return model.rawValue
        case .unrecognized(let s):          return "Unrecognized[\(s)]"
        }
    }

    public var model: DeviceModel.Model? {
        switch self {
        case .simulator(let model):         return model
        case .real(let model):              return model
        case .unrecognizedSimulator(_):     return nil
        case .unrecognized(_):              return nil
        }
    }
}

其他回答

我最近在开发这个swift包:

https://github.com/EmilioOjeda/Device

我认为它的主要优点是代码生成的。所以每当一个新的Xcode版本发布时,我所要做的就是运行一个脚本并更新swift包。

代码生成是如何工作的?

它从Xcode的数据库(每个平台)读取并解析设备的数据,以识别正在运行的设备,并为其提供信息。

这是用法……

import Device
// or => 'import iPhoneOSDevice' <= iPhoneOS-only device data
// or => 'import tvOSDevice' <= tvOS-only device data

// A representation of the running device - it could be either actual or simulated.
let device = Device.current

// It is 'true' when running on a physical device.
_ = device.isDevice

// It is 'true' when running on a simulator instance.
_ = device.isSimulator

// It is 'true' when the device does not match either simulators or physical devices.
_ = device.isUnknown

// The identifier for the device.
// i.e.: 'iPhone15,3'
let id = device.id

// The known/commercial name of the device.
// i.e.: 'iPhone 14 Pro Max'
let model = device.model

在Swift 3中是这样的

 UIDevice.current.model

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

我在UIDevice上做了另一个示例扩展,包括基于@HAS的答案的模拟器模型标识符。它在上面的Swift3.2(包括Swift 4)中工作得很好。x, Swift 5):

let modelName = UIDevice.current.modelName

新增型号:iPod touch(第七代),iPhone SE(第二代),iPhone 12 mini, iPhone 12 Pro, iPhone 12 Pro Max, iPad Pro(12.9英寸)(第四代)

import UIKit

public extension UIDevice {

    /// pares the deveice name as the standard name
    var modelName: String {

        #if targetEnvironment(simulator)
            let identifier = ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"]!
        #else
            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)))
            }
        #endif

        switch identifier {
        case "iPod5,1":                                 return "iPod Touch 5"
        case "iPod7,1":                                 return "iPod Touch 6"
        case "iPod9,1":                                 return "iPod touch (7th generation)"
        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 "iPhone9,1", "iPhone9,3":                  return "iPhone 7"
        case "iPhone9,2", "iPhone9,4":                  return "iPhone 7 Plus"
        case "iPhone8,4":                               return "iPhone SE"
        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 "iPhone11,2":                              return "iPhone XS"
        case "iPhone11,4", "iPhone11,6":                return "iPhone XS Max"
        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 generation)"
        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 "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 "iPad6,11", "iPad6,12":                    return "iPad 5"
        case "iPad7,5", "iPad7,6":                      return "iPad 6"
        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 "iPad7,1", "iPad7,2":                      return "iPad Pro (12.9-inch) (2nd generation)"
        case "iPad7,3", "iPad7,4":                      return "iPad Pro (10.5-inch)"
        case "iPad8,1", "iPad8,2", "iPad8,3", "iPad8,4":return "iPad Pro (11-inch)"
        case "iPad8,5", "iPad8,6", "iPad8,7", "iPad8,8":return "iPad Pro (12.9-inch) (3rd generation)"
        case "iPad8,11", "iPad8,12":                    return "iPad Pro (12.9-inch) (4th generation)"
        case "AppleTV5,3":                              return "Apple TV"
        case "AppleTV6,2":                              return "Apple TV 4K"
        case "AudioAccessory1,1":                       return "HomePod"
        default:                                        return identifier
        }
    }
}

在swift中处理c结构体是很痛苦的。尤其是当里面有c数组的时候。以下是我的解决方案:继续使用objective-c。只需创建一个包装器objective-c类来完成这项工作,然后在swift中使用该类。下面是一个示例类,它就是这样做的:

@interface DeviceInfo : NSObject

+ (NSString *)model;

@end

#import "DeviceInfo.h"
#import <sys/utsname.h>

@implementation DeviceInfo

+ (NSString *)model
{
    struct utsname systemInfo;
    uname(&systemInfo);

    return [NSString stringWithCString: systemInfo.machine encoding: NSUTF8StringEncoding];
}

@end

在迅捷的一面:

let deviceModel = DeviceInfo.model()