获取设备唯一标识 uuid(采用第三方库SSKeychain)

SSKeyChain 下载链接: http://pan.baidu.com/s/1booV3VD 密码: ivdi

/**

 *  获取设备唯一标识 uuid

 */

+(NSString*) uuid {

    //保存一个UUID字符串到钥匙串：

    CFUUIDRef uuid = CFUUIDCreate(NULL);

    assert(uuid != NULL);

    CFStringRef uuidStr = CFUUIDCreateString(NULL, uuid);

    [SSKeychain setPassword: [NSString stringWithFormat:@"%@", uuidStr]

                 forService:@"com.liukena.ios.JiuyierNutrition"account:@"user"];

    

    //从钥匙串读取UUID：

    NSString *uuidString = [JYEDeviceInfo getDeviceId];

//注意“JYEDeviceInfo”是类名，替换成相应的类名即可。。（+ (NSString *)getDeviceId，本身是类方法，需要类名调用）

//    NSLog(@"[NSString getDeviceId] = %@",uuidString);

    

    return uuidString;

}

+ (NSString *)getDeviceId

{

    NSString * currentDeviceUUIDStr = [SSKeychain passwordForService:@" "account:@"uuid"];

    if (currentDeviceUUIDStr == nil || [currentDeviceUUIDStr isEqualToString:@""])

    {

        NSUUID * currentDeviceUUID  = [UIDevice currentDevice].identifierForVendor;

        currentDeviceUUIDStr = currentDeviceUUID.UUIDString;

        currentDeviceUUIDStr = [currentDeviceUUIDStr stringByReplacingOccurrencesOfString:@"-" withString:@""];

        currentDeviceUUIDStr = [currentDeviceUUIDStr lowercaseString];

        [SSKeychain setPassword: currentDeviceUUIDStr forService:@" "account:@"uuid"];

    }

    return currentDeviceUUIDStr;

}