NSXML parsing error when used with NSData - iphone

Question

I have a simple XML file containing a subset list of products. When I load the file from the iOS App bundle and send it through the parser with: initWithNSURL, with an NSURL pointing to the local file it parses correctly.
However if I download the same file via an NSURLConnection and pass it to the parser with initWithData, the parsing fails. I can confirm the data is being downloaded correctly because if I perform NSString *temp = [NSString stringWithUTF8String:[downloadedData bytes]]; the outputted string is correct.
I have a guy feeling it's sometime to do with encoding somewhere along the line, any thoughts?

Answer 1

My friend do the parser job,
NSString* xmlData = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
xmlData should look like
abc
and my friend just analyze the string,and it's work
and I used libxml2 to parse xml with
xmlTextReaderPtr reader = xmlReaderForMemory([data bytes], [data length], NULL, NULL, (XML_PARSE_NOBLANKS | XML_PARSE_NOCDATA | XML_PARSE_NOERROR | XML_PARSE_NOWARNING));
if (reader != NULL) {
ret = xmlTextReaderRead(reader);
while (ret == 1) {
const xmlChar *name, *value;
name = xmlTextReaderConstName(reader);
if (name == NULL)
name = BAD_CAST "--";
NSString *Name = [NSString stringWithCString:(const char*)name encoding:NSUTF8StringEncoding];
value = xmlTextReaderConstValue(reader);
if (value == NULL)
value = BAD_CAST "\n";
NSString *Value = [NSString stringWithCString:(const char*)value encoding:NSUTF8StringEncoding];
NSLog("%d %d %# %d %#",
xmlTextReaderDepth(reader),
xmlTextReaderNodeType(reader),
Name,
xmlTextReaderIsEmptyElement(reader),
Value);
ret = xmlTextReaderRead(reader);
}
xmlFreeTextReader(reader);
}
and result is correct too