How to fetch the data from Google news by XML Parsing - iphone

Question

I want to fetch Google news data by XML parsing and save it into an array. The XML is like this
http://news.google.co.in/news?pz=1&cf=all&ned=in&hl=en&output=rss

Answer 1

Well I parse xml some different way than others and being frank I really do not know which technique it is but I assure you it works fine for me and I have implemeted it successfully in so many projects. Have a look at my code where I load tweets from some profile
This is the function where I make call for parser.
-(void)loadtweet
{
#try
{
NSString *urlString = [NSString stringWithFormat:#"https://api.twitter.com/1/statuses/user_timeline.xml?screen_name=SrBachchan&count=5"];
NSLog(#"fetching data from--------> : %#",urlString);
NSString* escapedUrlString = [urlString stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
NSMutableURLRequest *request1 = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:escapedUrlString]];
NSURLConnection *con=[[NSURLConnection alloc] initWithRequest:request1 delegate:self];
if(con)
truckData=[[NSMutableData data]retain];
}
#catch (NSException *exception)
{
UIAlertView *v = [[UIAlertView alloc] initWithTitle:#"ERROR" message:#"Please Try Again Later." delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
[v show];
[v release];
}
}
And these are the NSURLConnection delegate methods:
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[truckData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[truckData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
[tweets removeAllObjects];
#try
{
// [app.trucks removeAllObjects];
NSString *thexml=[[NSString alloc] initWithBytes:[truckData mutableBytes] length:[truckData length] encoding:NSUTF8StringEncoding];
NSArray *array=[thexml componentsSeparatedByString:#"<status>"];
NSLog(#"%d",[array count]);
for(int i=1;i<[array count];i++)
{
NSString *str=[array objectAtIndex:i];
NSArray *arr1=[str componentsSeparatedByString:#"<text>"];
NSString *data=[arr1 objectAtIndex:1];
NSRange ranfrom=[data rangeOfString:#"</text>"];
// nt.truckName=[data substringToIndex:ranfrom.location];
[tweets addObject:[data substringToIndex:ranfrom.location]];
}
}
#catch (NSException *exception)
{
UIAlertView *v = [[UIAlertView alloc] initWithTitle:#"ERROR" message:#"Please Try Again Later." delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
[v show];
[v release];
}
}
I have used some string functions to separate tags and stored the values in Array.

Answer 2

This is where you can start: NSXMLParser class reference.