How can I parse this xml in iOS 7? - ios

Question

I want to parse this XML:
<?xml version="1.0" encoding="UTF-8"?>
<eventdata>
<rev></rev>
<event>
<id> </id>
<name></name>
<thumb> </thumb>
<eimage></eimage>
<artists></artists>
<date></date>
<time> </time>
<cost> </cost>
<discount> </discount>
<gmap> </gmap>
<web> </web>
<desc> </desc>
<file>
<src> </src>
<size> </size>
</file>
<vtype></vtype>
<address></address>
<area></area>
<city></city>
<pcode></pcode>
<lmark></lmark>
<likes></likes>
<hl></hl>
<pref></pref>
<img> <src> </src>
<size> </size></img>
<vid> <src> </src>
<size> </size></vid>
</event>
<event>
<id> </id>
<name></name>
<thumb> </thumb>
<eimage></eimage>
<artists></artists>
<date></date>
<time> </time>
<cost> </cost>
<discount> </discount>
<gmap> </gmap>
<web> </web>
<desc> </desc>
<file>
<src> </src>
<size> </size>
</file>
<vtype></vtype>
<address></address>
<area></area>
<city></city>
<pcode></pcode>
<lmark></lmark>
<likes></likes>
<hl></hl>
<pref></pref>
<img> <src> </src>
<size> </size></img>
<vid> <src> </src>
<size> </size></vid>
</event>
</eventdata>
I tried this code:
- (void)viewDidLoad
{
[super viewDidLoad];
_currentParsedCharacterData = [[NSMutableString alloc] init];
NSString *path = [[NSBundle mainBundle] pathForResource:#"NewYearPartyData" ofType:#"xml"];
NSData *data = [[NSData alloc] initWithContentsOfFile:path];
NSXMLParser *parser = [[NSXMLParser alloc] initWithData:data];
[parser setDelegate:self];
// parsing...
BOOL success = [parser parse];
// test the result
if (success) {
//NSLog(#"No errors - user count : %i", [parser [users count]]);
NSLog(#"Success");
// get array of users here
// NSMutableArray *users = [parser users];
} else {
NSLog(#"Error parsing document!");
}
}
#pragma mark - NSXMLParser delegate methods
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
if ([elementName isEqualToString:#"event"]) {
NSLog(#"user element found – create a new instance of User class...");
//user = [[User alloc] init];
//We do not have any attributes in the user elements, but if
// you do, you can extract them here:
// user.att = [[attributeDict objectForKey:#"<att name>"] ...];
NSLog(#"Event Name = %#", [attributeDict objectForKey:#"name"]);
NSLog(#"attributeDict = %#", attributeDict);
}
if ([elementName isEqualToString:#"name"]) {
NSLog(#"attributeDict = %#", attributeDict);
NSLog(#"Event Name = %#", [attributeDict objectForKey:#"name"]);
NSLog(#"elementName = %#", elementName);
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
NSLog(#"didEndElement");
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
NSLog(#"value of element %#", string);
}
- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError {
}
Someone who is good in NSXMLParser - I request them to explain to me the flow.
My basic question is "How to access data of event i.e., id, name, thumb etc?"

Answer 1

NSXMLParsing is the easiest way to parse data. You can easily access data of event i.e., id, name, thumb etc using the delegate method
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
}
You can create a NSOBject class named Event.
Here is my code
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
if ([elementname isEqualToString:#"id"])
{
event.id = currentNodeContentChapters;
}
if ([elementname isEqualToString:#"name"])
{
event.name = currentNodeContentChapters;
}
if ([elementname isEqualToString:#"thumb"])
{
event.thumb = currentNodeContentChapters;
}
if ([elementname isEqualToString:#"eiimage"])
{
event.eiimageUrl = currentNodeContentChapters;
}
-------------------
---------------
}
Hopefully it will work for you .