Question

如何将NSUUID转换为NSString？

NSString *url = [self mysql_process:ESTIMOTE_PROXIMITY_UUID];

- (NSString*)mysql_process:(NSUUID *)beacon_id
{

    NSString *strURL = [NSString stringWithFormat:@"http://path_to_php_file/mysql.php?id=%@", beacon_id];
    NSData *dataURL = [NSData dataWithContentsOfURL:[NSURL URLWithString:strURL]];
    NSString *strResult = [[NSString alloc] initWithData:dataURL encoding:NSUTF8StringEncoding];

    return strResult;

}

当我尝试NSLog URL我得到一个指针时，在这种情况下显示我的NSUUID，ESTIMOTE_PROXIMITY_UUID。

Answer 1

NSUUID有一个方法：-(NSString*)UUIDString;。所以：

NSString *uuidString = [yourNSUUID UUIDString]

Answer 2

swift 3版

例如：

让uuidStringValue =“12345678-1111-2222-3333-4567891012B4”

让proximityUUID = NSUUID（uuidString：uuidStringValue）

Answer 3

如果你想要来自NSUUID的NSString。使用NSUUID的UUIDString ...

    NSUUID *uuidStringRef = [[UIDevice currentDevice] identifierForVendor];
    NSString *stringRef = [uuidStringRef UUIDString];//you can replace uuidStringRef with your ESTIMOTE_PROXIMITY_UUID

希望它可以帮助你......！

Answer 4

   NSString *url = [self mysql_process:ESTIMOTE_PROXIMITY_UUID];

- (NSString*)mysql_process:(NSUUID *)beacon_id  {

    **NSString *strDeviceUUID = [beacon_id UUIDString];** // Converts NSUUID to UUIDString format

    NSLog(@"beacon_id : %@ strDeviceUUID : %@ ", beacon_id,strDeviceUUID);

    NSString *strURL = [NSString stringWithFormat:@"http://path_to_php_file/mysql.php?id=%@", strDeviceUUID];
    NSData *dataURL = [NSData dataWithContentsOfURL:[NSURL URLWithString:strURL]];
    NSString *strResult = [[NSString alloc] initWithData:dataURL encoding:NSUTF8StringEncoding];

    return strResult;
}

此功能存在于Foundation框架的NSUUID.h文件中。

/* Return a string description of the UUID, such as "E621E1F8-C36C-495A-93FC-0C247A3E6E5F" */
- (NSString *) UUIDString;

如何将NSUUID表示为字符串？

4 个答案: