У меня есть следующий XML:
<data>
<title>Bookstore</title>
<site>www.bookstore.com</site>
<lastUpdate>11/17/2011</lastUpdate>
<books>
<unit>
<title>
Beginning iPhone 4 Development: Exploring the iOS SDK
</title>
<author>David Mark, Jack Nutting, Jeff LaMarche</author>
<isbn10>143023024X</isbn10>
<isbn13>978-1430230243</isbn13>
<pubDate>January 28, 2011</pubDate>
<price>23.99</price>
<description>
Beginning iPhone 4 Development is a complete course in iOS development. You'll master techniques that work on iPhone, iPad, and iPod touch. We start with the basics showing you how to download and install the tools you'll need, and how to create your first simple application. Next you'll learn to integrate all the interface elements iOS users have come to know and love, such as buttons, switches, pickers, toolbars, and sliders.
</description>
</unit>
<unit>...</unit>
<unit>...</unit>
</books>
<clothes>
<unit>
<title>T-Shirt</title>
<size>M</size>
<color>Red</color>
<price>10.99</price>
<description>
100% cotton T-shirt, wash in cold water with like colors
</description>
</unit>
<unit>...</unit>
<unit>...</unit>
<unit>...</unit>
</clothes>
<accessories>
<unit>
<title>Mug - Large</title>
<color>Black</color>
<price>6.99</price>
<description>
Large 16-ounce ceramic coffee mug, with witty use of IIT name on it.
</description>
</unit>
<unit>...</unit>
</accessories>
</data>
Это код, который я получил.Я проверяю, встречается ли тег «books».
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName
attributes:(NSDictionary *)attributeDict {
if([elementName isEqualToString:@"books"]) {
appDelegate.books = [[NSMutableArray alloc] init];
}
else if([elementName isEqualToString:@"unit"]) {
aBook = [[Book alloc] init];
}
NSLog(@"Processing Element: %@", elementName);
}
.
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
if(!currentElementValue)
currentElementValue = [[NSMutableString alloc] initWithString:string];
else
[currentElementValue appendString:string];
NSLog(@"Processing Value: %@", currentElementValue);
}
Здесь я пытаюсь присвоить значения в каждом теге переменной в объекте Book.
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName {
if (qName) {
elementName = qName;
}
if (aBook) {
if ([elementName isEqualToString:@"title"]) {
aBook.title = currentElementValue;
} else if ([elementName isEqualToString:@"author"]) {
aBook.author = currentElementValue;
} else if ([elementName isEqualToString:@"isbn10"]) {
aBook.isbn10 = currentElementValue;
} else if ([elementName isEqualToString:@"isbn13"]) {
aBook.isbn13 = currentElementValue;
} else if ([elementName isEqualToString:@"pubDate"]) {
aBook.pubDate = currentElementValue;
} else if ([elementName isEqualToString:@"price"]) {
aBook.price = currentElementValue;
} else if ([elementName isEqualToString:@"description"]) {
aBook.description = currentElementValue;
}
[appDelegate.books addObject:aBook];
[aBook release];
aBook = nil;
}
[currentElementValue release];
currentElementValue = nil;
}
У меня есть UITableView для отображения списка книг,
Book *aBook = [appDelegate.books objectAtIndex:indexPath.row];
[[cell textLabel] setText:[aBook title]];
Проблема в том, что все элементы отображаются в виде таблицы, а не только книги.Как мне ограничить отображаемые предметы только из книг.Я думаю, что я ошибаюсь в методе Parser DidStartElement.
Спасибо.