Estou tentando redimensionar a altura da minha linha no UITableView com base no comprimento do texto. Eu tenho o seguinte código

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *cellText =[[topics objectAtIndex:indexPath.row] name];
    UIFont *cellFont = [UIFont fontWithName:@"ArialMT" size:17.0];
    CGSize constraintSize = CGSizeMake(280.0f, MAXFLOAT);
    CGSize labelSize = [cellText sizeWithFont:cellFont constrainedToSize:constraintSize lineBreakMode:UILineBreakModeWordWrap];

    return labelSize.height + 20;
}

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

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
        cell.textLabel.lineBreakMode = UILineBreakModeWordWrap;
        cell.textLabel.numberOfLines = 0;
        cell.textLabel.font = [UIFont fontWithName:@"ArialMT" size:17.0];
    }
}

No entanto, ele mexe com o UIImageView e o UIDetailText, imagem mostrada abaixo:

Como faço para corrigir isso

Eu tentei

[cell.imageView setContentMode:UIViewContentModeScaleToFill];
    [cell.imageView setFrame:CGRectMake(0, 0, 16,16)];
    [cell.imageView setBounds:CGRectMake(0, 0, 16,16)];
    [cell.imageView setAutoresizingMask:UIViewAutoresizingNone];
    [cell.imageView setAutoresizesSubviews:NO];

e nenhum parece funcionar