问题
This question already has an answer here:
- How can I programmatically get the MAC address of an iphone 12 answers
I have an application that uses rest to communicate to a server, i would like to obtain the iphones either mac address or device ID for uniqueness validation, how can this be done?
回答1:
[[UIDevice currentDevice] uniqueIdentifier] is guaranteed to be unique to each device.
回答2:
uniqueIdentifier (Deprecated in iOS 5.0. Instead, create a unique identifier specific to your app.)
The docs recommend use of CFUUIDCreate instead of [[UIDevice currentDevice] uniqueIdentifier]
So here is how you generate an unique id in your app
CFUUIDRef uuidRef = CFUUIDCreate(kCFAllocatorDefault);
NSString *uuidString = (NSString *)CFUUIDCreateString(NULL,uuidRef);
CFRelease(uuidRef);
Note that you have to save the uuidString in user defaults or in other place because you can not generate the same uuidString again.
You can use UIPasteboard to store your generated uuid. And if the app will be deleted and reinstalled you can read from UIPasteboard the old uuid. The paste board will be wiped out when the device will be erased.
In iOS 6 they have introduced the NSUUID Class that is designed to create UUIDs strings
Also they added in iOS 6 @property(nonatomic, readonly, retain) NSUUID *identifierForVendor to the UIDevice class
The value of this property is the same for apps that come from the same vendor running on the same device. A different value is returned for apps on the same device that come from different vendors, and for apps on different devices regardless of vendor.
The value of this property may be nil if the app is running in the background, before the user has unlocked the device the first time after the device has been restarted. If the value is nil, wait and get the value again later.
Also in iOS 6 you can use ASIdentifierManager class from AdSupport.framework. There you have
@property(nonatomic, readonly) NSUUID *advertisingIdentifier
Discussion Unlike the identifierForVendor property of the UIDevice, the same value is returned to all vendors. This identifier may change—for example, if the user erases the device—so you should not cache it.
The value of this property may be nil if the app is running in the background, before the user has unlocked the device the first time after the device has been restarted. If the value is nil, wait and get the value again later.
Edit:
Pay attention that the advertisingIdentifier may return
00000000-0000-0000-0000-000000000000
because there seems to be a bug in iOS. Related question: The advertisingIdentifier and identifierForVendor return "00000000-0000-0000-0000-000000000000"
回答3:
For a Mac Adress you could use
#import <Foundation/Foundation.h>
@interface MacAddressHelper : NSObject
+ (NSString *)getMacAddress;
@end
implentation
#import "MacAddressHelper.h"
#import <sys/socket.h>
#import <sys/sysctl.h>
#import <net/if.h>
#import <net/if_dl.h>
@implementation MacAddressHelper
+ (NSString *)getMacAddress
{
int mgmtInfoBase[6];
char *msgBuffer = NULL;
size_t length;
unsigned char macAddress[6];
struct if_msghdr *interfaceMsgStruct;
struct sockaddr_dl *socketStruct;
NSString *errorFlag = NULL;
// Setup the management Information Base (mib)
mgmtInfoBase[0] = CTL_NET; // Request network subsystem
mgmtInfoBase[1] = AF_ROUTE; // Routing table info
mgmtInfoBase[2] = 0;
mgmtInfoBase[3] = AF_LINK; // Request link layer information
mgmtInfoBase[4] = NET_RT_IFLIST; // Request all configured interfaces
// With all configured interfaces requested, get handle index
if ((mgmtInfoBase[5] = if_nametoindex("en0")) == 0)
errorFlag = @"if_nametoindex failure";
else
{
// Get the size of the data available (store in len)
if (sysctl(mgmtInfoBase, 6, NULL, &length, NULL, 0) < 0)
errorFlag = @"sysctl mgmtInfoBase failure";
else
{
// Alloc memory based on above call
if ((msgBuffer = malloc(length)) == NULL)
errorFlag = @"buffer allocation failure";
else
{
// Get system information, store in buffer
if (sysctl(mgmtInfoBase, 6, msgBuffer, &length, NULL, 0) < 0)
errorFlag = @"sysctl msgBuffer failure";
}
}
}
// Befor going any further...
if (errorFlag != NULL)
{
NSLog(@"Error: %@", errorFlag);
return errorFlag;
}
// Map msgbuffer to interface message structure
interfaceMsgStruct = (struct if_msghdr *) msgBuffer;
// Map to link-level socket structure
socketStruct = (struct sockaddr_dl *) (interfaceMsgStruct + 1);
// Copy link layer address data in socket structure to an array
memcpy(&macAddress, socketStruct->sdl_data + socketStruct->sdl_nlen, 6);
// Read from char array into a string object, into traditional Mac address format
NSString *macAddressString = [NSString stringWithFormat:@"%02X:%02X:%02X:%02X:%02X:%02X",
macAddress[0], macAddress[1], macAddress[2],
macAddress[3], macAddress[4], macAddress[5]];
//NSLog(@"Mac Address: %@", macAddressString);
// Release the buffer memory
free(msgBuffer);
return macAddressString;
}
@end
Use:
NSLog(@"MAC address: %@",[MacAddressHelper getMacAddress]);
回答4:
Use this:
NSUUID *id = [[UIDevice currentDevice] identifierForVendor];
NSLog(@"ID: %@", id);
回答5:
In IOS 5 [[UIDevice currentDevice] uniqueIdentifier] is deprecated.
It's better to use -identifierForVendor or -identifierForAdvertising.
A lot of useful information can be found here:
iOS6 UDID - What advantages does identifierForVendor have over identifierForAdvertising?
回答6:
Here, We can find mac address for IOS device using Asp.net C# Code...
.aspx.cs
-
var UserDeviceInfo = HttpContext.Current.Request.UserAgent.ToLower(); // User's Iphone/Ipad Info.
var UserMacAdd = HttpContext.Current.Request.UserHostAddress; // User's Iphone/Ipad Mac Address
GetMacAddressfromIP macadd = new GetMacAddressfromIP();
if (UserDeviceInfo.Contains("iphone;"))
{
// iPhone
Label1.Text = UserDeviceInfo;
Label2.Text = UserMacAdd;
string Getmac = macadd.GetMacAddress(UserMacAdd);
Label3.Text = Getmac;
}
else if (UserDeviceInfo.Contains("ipad;"))
{
// iPad
Label1.Text = UserDeviceInfo;
Label2.Text = UserMacAdd;
string Getmac = macadd.GetMacAddress(UserMacAdd);
Label3.Text = Getmac;
}
else
{
Label1.Text = UserDeviceInfo;
Label2.Text = UserMacAdd;
string Getmac = macadd.GetMacAddress(UserMacAdd);
Label3.Text = Getmac;
}
.class File
public string GetMacAddress(string ipAddress)
{
string macAddress = string.Empty;
if (!IsHostAccessible(ipAddress)) return null;
try
{
ProcessStartInfo processStartInfo = new ProcessStartInfo();
Process process = new Process();
processStartInfo.FileName = "arp";
processStartInfo.RedirectStandardInput = false;
processStartInfo.RedirectStandardOutput = true;
processStartInfo.Arguments = "-a " + ipAddress;
processStartInfo.UseShellExecute = false;
process = Process.Start(processStartInfo);
int Counter = -1;
while (Counter <= -1)
{
Counter = macAddress.Trim().ToLower().IndexOf("mac address", 0);
if (Counter > -1)
{
break;
}
macAddress = process.StandardOutput.ReadLine();
if (macAddress != "")
{
string[] mac = macAddress.Split(' ');
if (Array.IndexOf(mac, ipAddress) > -1)
{
if (mac[11] != "")
{
macAddress = mac[11].ToString();
break;
}
}
}
}
process.WaitForExit();
macAddress = macAddress.Trim();
}
catch (Exception e)
{
Console.WriteLine("Failed because:" + e.ToString());
}
return macAddress;
}
来源：https://stackoverflow.com/questions/1110278/getting-device-id-or-mac-address-in-ios