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
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
}
}
}
其他回答
如果你不想每次苹果向设备家族添加新型号时都更新你的代码，可以使用下面的方法只返回型号代码。
func platform() -> String {
var systemInfo = utsname()
uname(&systemInfo)
let modelCode = withUnsafeMutablePointer(&systemInfo.machine) {
ptr in String.fromCString(UnsafePointer<CChar>(ptr))
}
return String.fromCString(modelCode!)!
}
斯威夫特3.1
我对简单地调用utsname的看法是:
func platform() -> String {
var systemInfo = utsname()
uname(&systemInfo)
let size = Int(_SYS_NAMELEN) // is 32, but posix AND its init is 256....
let s = withUnsafeMutablePointer(to: &systemInfo.machine) {p in
p.withMemoryRebound(to: CChar.self, capacity: size, {p2 in
return String(cString: p2)
})
}
return s
}
和其他的一样，但对C/Swift和后面的复杂结构更清晰一些。 )：
返回值如"x86_64"
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
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
}
}
}
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()
