xml parsing run but no data displayed - objective-c

Question

This is the code of my app . The applications runs but there is no data displayed , can you help me to fix this problem ?
In .h file:
#interface MyData : NSObject <NSXMLParserDelegate> {
NSMutableString *currentElementValue;
User *user;
NSMutableArray *users;
}
-(MyData *) initXMLParser;
-(BOOL)parseDocumentWithData:(NSData *)data;
#property (nonatomic, retain) User *user;
#property (nonatomic, retain) NSMutableArray *users;
In .m file:
#implementation MyData
#synthesize user;
#synthesize users;
- (MyData *) initXMLParser {
[super init];
// init array of user objects
users = [[NSMutableArray alloc] init];
return self;
}
-(BOOL)parseDocumentWithData:(NSData *)data {
NSString * filePath = [[NSBundle mainBundle] pathForResource:#"Users" ofType:#"xml"];
data = [NSData dataWithContentsOfFile:filePath];
if (data == nil)
return NO;
// this is the parsing machine
NSXMLParser *xmlparser = [[NSXMLParser alloc] initWithData:data];
// this class will handle the events
[xmlparser setDelegate:self];
[xmlparser setShouldResolveExternalEntities:NO];
// now parse the document
BOOL ok = [xmlparser parse];
if (ok == NO)
NSLog(#"error");
else
NSLog(#"OK");
[xmlparser release];
return ok;
}
- (void)parser:(NSXMLParser *)parser
didStartElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qualifiedName
attributes:(NSDictionary *)attributeDict {
if ([elementName isEqualToString:#"user"]) {
NSLog(#"user element found – create a new instance of User class...");
user = [[User alloc] init];
}
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
if (!currentElementValue) {
// init the ad hoc string with the value
currentElementValue = [[NSMutableString alloc] initWithString:string];
} else {
// append value to the ad hoc string
[currentElementValue appendString:string];
}
NSLog(#"Processing value for : %#", string);
}
- (void)parser:(NSXMLParser *)parser
didEndElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI
qualifiedName:(NSString *)qName {
if ([elementName isEqualToString:#"users"]) {
// We reached the end of the XML document
return;
}
if ([elementName isEqualToString:#"user"]) {
// object to our user array
[users addObject:user];
// release user object
[user release];
user = nil;
} else {
[user setValue:currentElementValue forKey:elementName];
}
[currentElementValue release];
currentElementValue = nil;
}
#end
/* This is the code of my app . The applications runs but there is no data displayed , can you help me to fix this problem ? */
This is the code of my app . The application runs but there is no data displayed , can you help me to fix this problem ? I want to display data when parsing

Answer 1

Well if you are using the NSXML parser (objective-c) you will need to append the data from the parsing of the xml element, to a string. How are you planning to display the data from the xml file.
You can apply the same method from here:
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And then change the values in the parser to your element values.