Objective c 从xml查看iphone UItableview

我有一个表视图，我想用xml中的信息填充它。在viewdidload中，我告诉解析器开始解析。我将信息存储在NSMUtableArray中

然而，当我使用这个函数时，它给了我一个SIGABRT

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue2 reuseIdentifier:CellIdentifier] autorelease];
    }

    // Configure the cell...

    NSString *celltext = [profileItems objectAtIndex:indexPath.row]; //SGABRT here

    NSString *celltitle = [profileFieldNames objectAtIndex:indexPath.row];

    cell.detailTextLabel.text = celltext;

    cell.textLabel.text = celltitle;

    return cell;
}

我在以下行收到一个SIGABRT错误：“索引0超出空数组的界限”：

NSString *celltext = [profileItems objectAtIndex:indexPath.row]; //SGABRT here

它似乎试图在解析完成之前将数据放入表中。我如何避免这种情况

谢谢

编辑：以下是执行解析的代码：

    - (void)parser:(NSXMLParser *)parser
   didStartElement:(NSString *)elementName
      namespaceURI:(NSString *)namespaceURI
     qualifiedName:(NSString *)qualifiedName
        attributes:(NSDictionary *)attributeDict
{
    currentElement = [[elementName copy] autorelease];
    if ([elementName isEqualToString:@"fullname"]) 
    {
        tfullname = [[NSMutableString alloc] init];
    }

    if ([elementName isEqualToString:@"DOB"])
    {
        tDOB = [[NSMutableString alloc] init]; 
    }

    if ([elementName isEqualToString:@"accommodation"])
    {
        taccommodation = [[NSMutableString alloc] init]; 
    }

    if ([elementName isEqualToString:@"nationality"])
    {
        tnationality = [[NSMutableString alloc] init]; 
    }

    if ([elementName isEqualToString:@"subject"])
    {
        tstudying= [[NSMutableString alloc] init]; 
    }
}

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
    if ([currentElement isEqualToString:@"fullname"])
    {
        [tfullname appendString:string];
    }

    if ([currentElement isEqualToString:@"DOB"])
    {
        [tDOB appendString:string];
    }

    if ([currentElement isEqualToString:@"accommodation"])
    {
        [taccommodation appendString:string];
    }

    if ([currentElement isEqualToString:@"nationality"])
    {
        [tnationality appendString:string];
    }

    if ([currentElement isEqualToString:@"subject"])
    {
        [tstudying appendString:string];
    }
}

- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName 
  namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
    if ([elementName isEqualToString:@"fullname"]) 
    {     
        namelabelstring = tfullname;
        NSLog(@"second attemp your name is %@", namelabelstring);
    }

    if ([elementName isEqualToString:@"DOB"]) 
    {
        [profileItems addObject:tDOB];
    }

    if ([elementName isEqualToString:@"accommodation"])
    {
        [profileItems addObject:taccommodation];
    }

    if ([elementName isEqualToString:@"nationality"])
    {
        [profileItems addObject:tnationality];    }

    if ([elementName isEqualToString:@"subject"])
    {
        [profileItems addObject:tstudying];
    }
}

//////下面是创建数组的代码////////////

- (void)viewDidLoad
{
    [super viewDidLoad];

    // Uncomment the following line to preserve selection between presentations.
    // self.clearsSelectionOnViewWillAppear = NO;

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem;

    profileFieldNames = [[NSMutableArray alloc] init ];
    profileItems = [[NSMutableArray alloc] init];

    [profileFieldNames addObject:@"Date of Birth:"];
    [profileFieldNames addObject:@"Nationality:"];
    [profileFieldNames addObject:@"Accommodation:"];
    [profileFieldNames addObject:@"Studying:"];

    //[[self tableView] reloadData];

    [self loadmemberprofiledata];

    [[NSBundle mainBundle] loadNibNamed:@"ProfileViewHeader" owner:self options:nil];

    [self setHeaderView]; 
}

---

您需要从XML文件中填充一个

NSMutableArray

，然后可以将

UITableViews

数据源链接到

NSMutableArray

---

查看。

我是对的-表试图从尚未填充的数组（大小为0）中填充自身。解决方案是肮脏的黑客；使用空格初始化它，然后使用replaceAtineXwith，然后重新加载表

---

谢谢你的帮助

似乎信息不够。尝试将NSLog放在记录profileItems计数以及indexPath.row的日志之上。这可能有助于了解有多少项目可用，以及需要什么索引。另外，您说数组可能没有填充-它是否正在填充bg中的xml异步？这是什么代码？这将有助于了解您是如何填充profileItems和ProfileFieldName的。我怀疑其中至少有一个实际上是空的。是的，这是一个异步连接…什么是bg？嘿，如果我不使用值填充表，则会填充NSMutableArray，最终会填充数组。您确定您的解析正在向数组中添加对象吗？您应该

NSLog

profileItems在

didEndElement

结尾处同意。顺便问一下，解析在哪里调用？（这反过来会导致回调被调用）