查找移动设备标识符（UDID或Android ID）

Question

I want to find out the list of mobile devices which are all click my ad. Based on the details I want to re-target them

So I need to capture their identifier(UDID in ios and Android id in android phone) in order to identify them.

Can anyone suggest me good method or prefer any better way to achieve the above.

Answer 1

For Android, you should check this thread :

Will TelephonyManger.getDeviceId() return device id for Tablets like Galaxy Tab...?

Jorgesys' answer seems clean.

Answer 2

ANDROID: I am using this and seems to be working fine.

public static String getDeviceAndroidID(Context context)
{
    String android_id = Secure.getString(context.getContentResolver(), Secure.ANDROID_ID);
    if(android_id != null)
        return android_id;
    else
        return "";
}

iOS: For iOS version less than 7 I am using MAC address of the device. From iOS version 7 apple is providing a unique ID for this purpose.

(NSString *)getMacAddress
{
if(SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0"))
{
    NSString *strUID = nil;
    if(strUID == nil) strUID = [[[UIDevice currentDevice] identifierForVendor] UUIDString];
    return strUID;
}


int                 mgmtInfoBase[6];
char                *msgBuffer = NULL;
size_t              length;
unsigned char       macAddress[6];
struct if_msghdr    *interfaceMsgStruct;
struct sockaddr_dl  *socketStruct;
NSString            *errorFlag = nil;


// 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 != nil)
{
    free(msgBuffer);
    if(ENABLE_LOG) DLog(@"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]];
//if(ENABLE_LOG) DLog(@"Mac Address: %@", macAddressString);  
// Release the buffer memory
free(msgBuffer);
return macAddressString;
}