how to get the values from the XML - iphone

Question

I wants use google weather api in my project. here I am struggling from long time. to get the current temperature. city, humidity,day of week etc
I successfully hit the url. but I not know exact what i do in foundCharacter method to fetch the value.
Thanks
- (void) parser:(NSXMLParser *)parser didStartElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
if ([elementname isEqualToString:#"weather"])
{
currentTweet = [Tweet alloc];
}
}
- (void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
if ([elementname isEqualToString:#"city"])
{
}
}

Answer 1

Please check the code:
- (void) parser:(NSXMLParser *)parser didStartElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
if ([elementname isEqualToString:#"weather"])
{
currentTweet = [Tweet alloc];
}
else if ([elementname isEqualToString:#"city"])
{
currentTweet.city = [attributeDict valueForKey:#"city"]
}
}
- (void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementname namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
if ([elementname isEqualToString:#"weather"])
{
NSLog("Current City: %#",currentTweet.city);
}
}
For this type of xml, you don't want to use the parser:foundCharacters:
Quote from NSXMLPareser reference guide about foundCharacters method:
Sent by a parser object to provide its delegate with a string
representing all or part of the characters of the current element.
The parser object may send the delegate several
parser:foundCharacters: messages to report the characters of an
element. Because string may be only part of the total character
content for the current element, you should append it to the current
accumulation of characters until the element changes.
For more details: NSXML Parser Reference,
Working of parser,foundCharacters use