need help to parse xml string - iphone

Question

i need to parse this xml file
<?xml version="1.0" encoding="UTF-8"?>
<imageset>
<category>
<image>SQUIRREL</image>
<image>FOX</image>
<image>TIGER</image>
<image>LION</image>
</category>
</imageset>
i use this code to parse this.
- (void)viewDidLoad {
NSXMLParser *parser = [[NSXMLParser alloc] initWithData:[NSData dataWithContentsOfFile:[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"Config.xml"]]];
[super viewDidLoad];
[parser setDelegate:self];
[parser parse];
NSLog(#"test.......... %#",test);
}
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
if ([elementName isEqualToString:#"image"]) {
test = [[NSMutableArray alloc]init];
addelements = TRUE;
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
if ([elementName isEqualToString:#"image"]) {
addelements = FALSE;
}
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
[test addObject:string];
}
But it adds only last object,displays like this in console.
test.......... (
LION,
"\n\n",
"\n"
)
I need to add all image names in the xml file means {SQUIRREL,FOX,TIGER,LION}
how can i done,can any one please help me.
Thank u in advance.

Answer 1

Your problem is this method:
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
if ([elementName isEqualToString:#"image"]) {
test = [[NSMutableArray alloc]init];
addelements = TRUE;
}
}
Every time an image tag starts, you overwrite the test variable with a new instance of NSMutableArray (leaking the previous object). You need to change it to something like this:
if (!test) test = [[NSMutableArray alloc]init];
That is: only allocate a new array if there wasn't an old one already.

Answer 2

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
[mutableString release];
mutableString = [[NSMutableString alloc] init];
if ([elementName isEqualToString:#"image"]) {
if( !test ) test = [[NSMutableArray alloc] initWithCapacity: 10];
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
if ([elementName isEqualToString:#"image"])
[test addObject: mutableString];
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
[mutableString appendString: string];
}
where test and mutableString are ivars declared in your view controller's header
Note: this is very simplified version.

Answer 3

#Mahesh Babu yes you can also add the image by giving the name only as for example......
[UIImage imageNamed:#"SQUIRREL.jpg"];