将XML数据解析为NSMutableArray iOS – iPhone

<Categorys> 
    <Category>  
        <categoryId>25</categoryId>  
            <categoryName>My Photos</categoryName>                                  
                <categoryDescription>Description</categoryDescription>      
            <categoryIconPath>7.jpg</categoryIconPath>      
            <userId>2</userId>  
            <categoryStatus>ON</categoryStatus>  
        <publicPrivate>Private</publicPrivate>
    </Category>
......more categories
<Categorys>

在这里,我想得到< categoryName>我的NSMutableArray categList中的值.

我使用的代码是：

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI
                                       qualifiedName:(NSString *)qualifiedName 
                                          attributes:(NSDictionary*)attributeDict {

    if ( [elementName isEqualToString:@"categList"]) {
        // addresses is an NSMutableArray instance variable
        if (!categList)
            categList = [[NSMutableArray alloc] init];
        return;
    }

    NSLog(@"StartedElement %@",elementName);

    element = [NSMutableString string];

}


- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {

    if(element == nil)

        element = [[NSMutableString alloc] init];

        [element appendString:string];

}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName 
                                      namespaceURI:(NSString *)namespaceURI
                                     qualifiedName:(NSString *)qName {

    NSLog(@"Found an element named: %@ with a value of: %@",elementName,element);

    if ([elementName isEqualToString:@"categoryName"]) {

        NSLog(@"nnnfound::::::::::::::: %@",element);

        category = element;

        NSLog(@"category:::: %@",category);

    }

    [categList addObject:element];
    NSLog(@"categList*************** %@",categList);
}

但我没有在我的NSMutableArray categList中获取类别名称：

我的代码有什么问题？

（编辑：李大同）

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