Need to get a attribute from an XML file - ios

Question

I'm going to cut straight to the question, I have a XML file that has attributes like for example:
<Lowest units="p">135.9</Lowest>
What I need to get is the value from 'units', as if I just get the value from 'Lowest' it displays it as ' { Lowest = "135.9"\n\t; } ' and I'm assuming if I got it from the attribute it would just display '135.9' instead of above.
Here's the main two bits of coding I'm using:
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
NSLog(#"found this element: %#", elementName);
currentElement = [elementName copy];
if ([elementName isEqualToString:#"Fuel"])
{
item = [[NSMutableDictionary alloc] init];
fuel_price = [[NSMutableString alloc] init];
fuel_type = [[NSMutableString alloc] init];
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
NSLog(#"ended element: %#", elementName);
if ([elementName isEqualToString:#"Fuel"])
{
[item setObject:fuel_price forKey:#"p"];
[item setObject:fuel_type forKey:#"type"];
[prices addObject:[item copy]];
NSLog(#"adding fuel prices: %# - %#", fuel_price, fuel_type);
}
}
Hopefully someone can point me in the right direction, as I've tried so many methods with no luck.
Thanks in advance! :)

Answer 1

All the attributes are stored inside this attributeDict NSDcitionary you get in didStartElement... method and it's formatted so that attribute name is the key and value is, well, value :) So inside your element if you want to get the value of attribute named units you would do it this way:
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
if ([elementName isEqualToString:#"Lowest"]) {
NSString *units = [attributeDict objectForKey:#"units"];
}
}