XMLParsing не показывает данные по TableView

Question

кажется, что я не могу показать данные в таблице, которая находится внутри XML ...

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ 

    dataFileHolder *currentData = [[xmlParser listPopulated] objectAtIndex:indexPath.row]; 
     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"]; 

    if(cell == nil) { 
     cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"]; 

      } 

    CGRect nameFrame = CGRectMake(45, 2, 265, 30); 
    UILabel *nameLabel = [[UILabel alloc] initWithFrame:nameFrame]; 
    nameLabel.numberOfLines = 2; 
    nameLabel.font = [UIFont boldSystemFontOfSize:12]; 
    nameLabel.text = [currentData nameOfCat]; 
    [cell.contentView addSubview:nameLabel]; 

    CGRect descFrame = CGRectMake(45, 40, 265, 10); 
    UILabel *descLabel = [[UILabel alloc] initWithFrame:descFrame]; 
    descLabel.font = [UIFont systemFontOfSize:10]; 
    descLabel.text = [currentData descriptionOfCat]; 
    [cell.contentView addSubview:descLabel]; 
    return cell; 

} 

это класс XMLParser файл .m

- (id) loadXMLByURL :(NSString *) urlString { 

    listPopulated = [[NSMutableArray alloc]init]; 
    NSURL *url = [NSURL URLWithString:urlString]; 
    NSData *data= [[NSData alloc]initWithContentsOfURL:url]; 
    parser = [[NSXMLParser alloc]initWithData:data]; 
    parser.delegate = self; 

    return self; 

} 
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { 
    currentList = [[NSMutableString alloc] initWithString:[string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]]; 

} 
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict { 
    if([elementName isEqualToString:@"category"]){ 
     dataCurrent = [dataFileHolder alloc]; 
    } 
} 
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { 

    if([elementName isEqualToString:@"name"]){ 
     dataCurrent.nameOfCat = currentList; 
    } 
    if ([elementName isEqualToString:@"description"]){ 
     dataCurrent.descriptionOfCat = currentList; 
    } 
    if ([elementName isEqualToString:@"category"]) { 
     [listPopulated addObject:dataCurrent]; 
     dataCurrent = nil; 
     currentList = nil; 
    } 
} 

тогда у меня есть класс, который будет содержать данные, проанализированные из xml. .m dataholder это

@implementation dataFileHolder 

@synthesize nameOfCat = _nameOfCat; 
@synthesize descriptionOfCat = _descriptionOfCat; 

@end 

и это данные XML

category> 
<cat_id>59</cat_id> 
<name>Foods & Meals</name> 
<description> 
iRabwah Foods & Meals service provides you pizza packages, burger meals and spicy rice meal. Give a best meal to your loved ones in rabwah by iRabwah 
</description> 
<image> 
http://skylitecommunication.ipower.com/--irabwha-opc/image/data/1287455832_monotone_fork_spoon_eat_launch_restaurant_dinner.png 
</image> 
<sub_cat> 
<sub_id>67</sub_id> 
<sub_name>Spicy Rice Meal</sub_name> 
<sub_desc> 
iRabwah offers you to give a treat to your loved ones by spicy rice meal, best taste and special rice to your loved ones in rabwah. 
</sub_desc> 
<sub_image> 
http://skylitecommunication.ipower.com/--irabwha-opc/image/data/hyderabadi_biryani.png 
</sub_image> 
</sub_cat> 
<sub_cat> 
<sub_id>69</sub_id> 
<sub_name>Pizza Packages</sub_name> 
<sub_desc> 
Our pizzas have exciting, universal flavors made in Rabwah from freshly baked pizza dough including pepperoni, oregano, sauces and fresh ingredients. 
</sub_desc> 
<sub_image> 
http://skylitecommunication.ipower.com/--irabwha-opc/image/data/pizza.png 
</sub_image> 
</sub_cat> 
<sub_cat> 
<sub_id>68</sub_id> 
<sub_name>Burger Meals</sub_name> 
<sub_desc> 
iRabwah provides you a best way to dedicate a wonderful meal to your loves ones in rabwah by offering burger meals with fries coke and pizza. 
</sub_desc> 
<sub_image> 
http://skylitecommunication.ipower.com/--irabwha-opc/image/data/burger-clip-art-4.png 
</sub_image> 
</sub_cat> 
</category> 

любезно скажите мне, что им не хватает

Answer 1

Вы должны иметь переменную BOOL, чтобы начать захват символов.

или попробовать, как это:

- (id) loadXMLByURL :(NSString *) urlString { 

    listPopulated = [[NSMutableArray alloc]init]; 
    NSURL *url = [NSURL URLWithString:urlString]; 
    NSData *data= [[NSData alloc]initWithContentsOfURL:url]; 
    parser = [[NSXMLParser alloc]initWithData:data]; 
    parser.delegate = self; 

    [parser parse]; 

    return self; 
} 

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { 
    currentList = [[NSMutableString alloc] initWithString:[string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]]; 

} 

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict { 
    if([elementName isEqualToString:@"category"]){ 
     dataCurrent = [dataFileHolder alloc]; 
    } 
} 
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { 

    if([elementName isEqualToString:@"name"]){ 
     dataCurrent.nameOfCat = currentList; 
    } 
    if ([elementName isEqualToString:@"description"]){ 
     dataCurrent.descriptionOfCat = currentList; 
    } 
    if ([elementName isEqualToString:@"category"]) { 
     [listPopulated addObject:dataCurrent]; 
     dataCurrent = nil; 
     currentList = nil; 
    } 
}