如何将NSUUID表示为字符串？

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 im得到一个指针时，它显示了我的NSUUID，在本例中是ESTIMOTE_PROXIMITY_UUID。

Answer 1

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

NSString *uuidString = [yourNSUUID UUIDString]

Answer 2

swift 3版本

Ex:

设uuidStringValue = "12345678-1111-2222-3333-4567891012B4“

设proximityUUID = NSUUID(uuidString: uuidStringValue)

Answer 3

如果你想要NSString从NSUUID。使用UUIDString .

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

希望它能帮你.！