Parse XML response in IOS - ios

Question

I am creating an IOS application. In which I have to use SOAP web-service to get some details. So that I have used SUDZ-C to generate the stub. I can able to call web-service and got the response. But I can't parse the response. The below is the XML response.
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<ViewAppTrackResponse xmlns="http://service.cmp.app.com">
<ViewAppTrackResponseReturn>
<ns1:monthBO xmlns:ns1="http://response.cmp.app.com">
<monthListItem>
<ns2:date xmlns:ns2="http://bean.cmp.app.com">1-2-2014, Saturday (nonworking day)</ns2:date>
<ns3:lockStatus xmlns:ns3="http://bean.cmp.app.com">N</ns3:lockStatus>
<ns4:dailyTime xsi:nil="true" xmlns:ns4="http://bean.cmp.app.com"/>
<ns5:taskListNew xsi:nil="true" xmlns:ns5="http://bean.cmp.app.com"/>
</monthListItem>
<monthListItem>
<ns6:date xmlns:ns6="http://bean.cmp.app.com">2-2-2014, Sunday (nonworking day)</ns6:date>
<ns7:lockStatus xmlns:ns7="http://bean.cmp.app.com">N</ns7:lockStatus>
<ns8:dailyTime xmlns:ns8="http://bean.cmp.app.com">04:00</ns8:dailyTime>
<ns9:taskListNew xmlns:ns9="http://bean.cmp.app.com">
<taskListItem>
<ns9:trackId>1070</ns9:trackId>
<ns9:taskId>14</ns9:taskId>
</taskListItem>
<taskListItem>
<ns9:trackId>1094</ns9:trackId>
<ns9:taskId>44</ns9:taskId>
</taskListItem>
</ns9:taskListNew>
</monthListItem>
<monthListItem>
<ns10:date xmlns:ns10="http://bean.cmp.app.com">3-2-2014, Monday</ns10:date>
<ns11:lockStatus xmlns:ns11="http://bean.cmp.app.com">N</ns11:lockStatus>
<ns12:dailyTime xmlns:ns12="http://bean.cmp.app.com">08:00</ns12:dailyTime>
<ns13:taskListNew xmlns:ns13="http://bean.cmp.app.com">
<taskListItem>
<ns13:trackId>1071</ns13:trackId>
<ns13:taskId>14</ns13:taskId>
</taskListItem>
<taskListItem>
<ns13:trackId>1073</ns13:trackId>
<ns13:taskId>44</ns13:taskId>
</taskListItem>
</ns13:taskListNew>
</monthListItem>
</ns1:monthBO>
<ns14:userId xsi:nil="true" xmlns:ns114="http://response.cmp.app.com"/>5</ns14:userId>
</ViewAppTrackResponseReturn>
</ViewAppTrackResponse>
</soapenv:Body>
</soapenv:Envelope>
Can anyone help me to parse this response. This will helpful for me.

Answer 1

LibXML2 is included in Cocoa.
http://www.raywenderlich.com/553/xml-tutorial-for-ios-how-to-choose-the-best-xml-parser-for-your-iphone-project
http://www.cocoawithlove.com/2008/10/using-libxml2-for-parsing-and-xpath.html

Answer 2

You can use NSXMLParser class to parse this.Using its delegate methods you can parse. I am posting my try to parse your xml.It is not completed.I am giving you a basic code for parsing. You have to do the remaining.
Here "xmlInput" is of type NSString with your xmlstring.
NSData* xmlData = [xmlInput dataUsingEncoding:NSUTF8StringEncoding];
NSXMLParser * xmlParser = [[NSXMLParser alloc] initWithData:[xmlData copy]];
[xmlParser setDelegate:(id)self];
[xmlParser setShouldResolveExternalEntities: YES];
[xmlParser parse];
Create an xmlparser object and input your xmlData.Set its delegates.
//this delegate calls when parsing start.Only once.
- (void)parserDidStartDocument:(NSXMLParser *)parser
{
recordResults = NO;//declared in .h
MonthFlag = NO;//declared in .h
TaskFlag = NO;//declared in .h
Arry = nil;//declared in .h
}
// This delgate calls when each tag name is found.
-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *) namespaceURI qualifiedName:(NSString *)qName
attributes: (NSDictionary *)attributeDict
{
strElementName = [elementName copy];//strElementName is declared in .h
NSLog(#"%#",strElementName);
if([elementName isEqualToString:#"monthListItem"]){
MonthFlag = YES;
}
if([elementName isEqualToString:#"taskListItem"]){
TaskFlag = YES;
}
strElementValue = #""; //strElementValue is declared in .h
}
//This is called when each tag value is found.
-(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
strElementValue = [NSString stringWithFormat:#"%#%#", strElementValue,[string copy]];
NSLog(#"%#",strElementValue);
//NSLog(#"%# : %#",strElmentName,strElementValue);
recordResults=(strElementValue.length > 0);
}
// This deleagte will call in the end of each tag name.
-(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI: (NSString *)namespaceURI qualifiedName:(NSString *)qName
{
NSLog(#"%# - %#",elementName,strElementValue);
if (recordResults) {
if (MonthFlag) {
if(dicTemp==nil){
dicTemp = [[NSMutableDictionary alloc] init];
for (int i=0; i<10; i++) {
[dicTemp setObject:#"" forKey:strElementName];
}
}
[dicTemp setObject:strElementValue forKey:elementName ];
}
}
if(([elementName isEqualToString:#"monthListItem"] ) && dicTemp!=nil) {
if(Arry==nil)Arry = [[NSMutableArray alloc] init];
[Arry addObject:[dicTemp copy]];
dicTemp = nil;
[dicTemp release];
MonthFlag = NO;
NSLog(#"arry test %#",[Arry description]);
}
}
// This delegate will call when parsing finishes . only once
- (void)parserDidEndDocument:(NSXMLParser *)parser
{
recordResults = NO;
}