How to fetch data from xml string to variables in objective c?

Question

Hello,

I am new to objective c. I am right now working on the web service based application.I am using .net webservice that i would like to point out.

The thing is that using XML code,i am able to fetch the XML string in a simple string variable,but i cant get how to get data from the same in different variable.

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"&gt;
  <soap:Body>
    <GetDetailResponse xmlns="http://tempuri.org/"&gt;
      <GetDetailResult>{"TimeRemaining":"0 days 0 Hrs 0Mins","Rank":"0","Marks":"0","ContractsHeld":"0","CurrentLocation":"London","CurrentLatitude":23.056989,"CurrentLongitude":72.565384}</GetDetailResult>
    </GetDetailResponse>
  </soap:Body>
</soap:Envelope>

The above given is my xml string,that i am able to fetch in a string.now if i want to say fetch data of say CurrentLongitude in some variable,what should i do?

I tried the code :

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI 
      qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
    { 
     currElement = [elementName copy];

     if ([elementName isEqualToString:@"Location"]) 
     {
      txt1.text = [[NSMutableString alloc]init];
     }
     else if([elementName isEqualToString:@"TimeRemaining"])
     {
      txt1.text = [[NSMutableString alloc]init]; 
     }
    }

but it results into "soap:Envelope" variable elementName.How should i fetch CurrentLocation or some other variable?

Kindly help me out.

Thank you.

Answer 1

JSON within XML? You could extract the JSON and then put that into a JSON parser for Cocoa. But you'd prob be better off to put in the work to format the JSON as XML and use the built in parser or Xpath.