XML Parsing within TAG in ios - ios

Question

I have a XML file:
<trkseg>
<trkpt lat="11.004661" lon="76.97364"></trkpt>
<trkpt lat="11.005497" lon="76.97496"></trkpt>
</trkseg>
Here is my code:
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName
attributes:(NSDictionary *)attributeDict
{
if ([elementName isEqualToString:#"trkseg"])
{
self.tag = [[MRTRouteMapTag alloc]init];
NSLog(#"SRC: %#",[attributeDict objectForKey:#"lat"]);
}
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
[self.workingPropertyString appendString:string];
}
//event_logo, event_name, event_venue, event_date_time, race_details, event_descriptions;
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName
{
if (self.tag)
{
NSString *trimmedString = [self.workingPropertyString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
// clear the string for next time
[self.workingPropertyString setString:#""];
if ([elementName isEqualToString:#"trkseg"])
{
[self.array addObject:self.tag];
self.tag = nil;
NSLog(#"Array Count ==>>>>>> %d", [self.array count]);
}
// Get Registered User Details
// ------ ------- ------------
else if ([elementName isEqualToString:#"trkpt"])
{
NSDictionary *attributeDict;
NSString *imageURLString = [attributeDict objectForKey:#"lat"];
self.tag.latitude = trimmedString;
NSLog(#"race_id ==>> %#", imageURLString);
}
}
}
Here I need to parse data from trkpt TAG of lat and lon value. Could any one guide me to achieve this.. Thanks in Advance.

Answer 1

lat and lon are not values, but attributes of node trkpt
They should be available to you at didStartElement like so:
[attributeDict objectForKey:#"lat"];
or
[attributeDict objectForKey:#"lon"];
This is not related to NSXMLPArser, but the XML structure itself.

Answer 2

The values that you are looking for are stored in the attributeDict dictionary in
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName
attributes:(NSDictionary *)attributeDict

Answer 3

At finally i find the solution to archive it..
Here i added my sample code..
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
if ([elementName isEqualToString:#"trkpt"])
{
self.tag = [[MRTRouteMapTag alloc]init];
lat = [attributeDict objectForKey:#"lat"];
lon = [attributeDict objectForKey:#"lon"];
tag.latitude = lat;
tag.longitude = lon;
}
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
[self.workingPropertyString appendString:string];
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
if (self.tag)
{
if ([elementName isEqualToString:#"trkpt"])
{
[self.array addObject:self.tag];
self.tag = nil;
}
}
}