Having trouble with UITableViewCell

Question

我正在使用新的iOS5 TableView样式代码，但我似乎遇到了一个问题。每当调用search = true函数时，它就会崩溃。我认为它试图通过UITableView对象的配置方法接受BadgedCell。有什么办法解决这个问题吗?

Crash says: 2011-10-25 22:21:04.973 Social[5719:707] -[__NSCFDictionary isEqualToString:]: unrecognized selector sent to instance 0x392510
2011-10-25 22:21:04.975 Social[5719:707] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary isEqualToString:]: unrecognized selector sent to instance 0x392510'
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    if(searching)
    {
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"SearchCell"];
        [self configureCell:cell atIndexPath:indexPath];
        return cell;
    }
    else
    {
        TDBadgedCell *cell = [tableView dequeueReusableCellWithIdentifier:@"BadgedCell"];
        [self configureCell:cell atIndexPath:indexPath];
        return cell;   
    }
}
- (void)configureCell:(TDBadgedCell *)cell atIndexPath:(NSIndexPath *)indexPath
{
    if(searching)
    {
        NSDictionary *dictionary = (NSDictionary *)[listOfItems objectAtIndex:indexPath.row];
        [cell.textLabel setText:[dictionary objectForKey:@"exerciseName"]];
        [cell.detailTextLabel setText:[dictionary objectForKey:@"muscleName"]];
        cell.textLabel.text = [listOfItems objectAtIndex:indexPath.row];
        cell.detailTextLabel.text = [listOfItems objectAtIndex:indexPath.row];
    }
    else
    {
        cell.textLabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:16];
        cell.textLabel.text = [[self.muscleArray objectAtIndex:indexPath.row]objectForKey:@"muscleName"];
        cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    }
}

Answer 1

您正在将listOfItems字典作为字符串传递给单元格:

如果你使用这个:

      NSDictionary *dictionary = (NSDictionary *)[listOfItems objectAtIndex:indexPath.row];

我知道listOfItems包含许多字典。所以当你调用:

    cell.textLabel.text = [listOfItems objectAtIndex:indexPath.row];
    cell.detailTextLabel.text = [listOfItems objectAtIndex:indexPath.row];

您基本上是在尝试将字典分配给单元格标签。这就是为什么Xcode告诉你[__NSCFDictionary isEqualToString:].

尝试删除这些行

Answer 2

您需要从配置方法中删除这两行，因为如果如前三行所示，您的'listOfItems'是一个字典列表，那么您试图将字典设置为textLabel的文本字段，这将导致各种各样的问题。

cell.textLabel.text = [listOfItems objectAtIndex:indexPath.row];
cell.detailTextLabel.text = [listOfItems objectAtIndex:indexPath.row];