Custom cell with overlapping cells - iphone

Question

I´m using the method cellForRowAtIndexPath to draw cells with 2 labels. When i reuse a cell the label i had before in that cell isn´t erased, so i get two labels overlapping because i´m reusing a cell. This is weird cause only the label title gets overlapped, the other doesn´t.
So what i did to fix this, is that i´m always creating a new cell. Which isn´t appropriate but solves the problem... Anyone had a similar bug and manage to fix it? Cause i just made a workaround...
//Desenhado por codigo
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell;
UILabel *label = nil;
UILabel *label2 = nil;
UIColor *green = [UIColor colorWithRed:0 green: 0.77 blue:0 alpha:1];
cell = [tableView dequeueReusableCellWithIdentifier:#"Cell"];
// if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:#"Cell"] autorelease];
//Descrição
label = [[UILabel alloc] initWithFrame:CGRectZero];
[label setLineBreakMode:UILineBreakModeWordWrap];
[label setMinimumFontSize:FONT_SIZE];
[label setNumberOfLines:0];
[label setFont:[UIFont systemFontOfSize:FONT_SIZE]];
[label setFont:[UIFont fontWithName:#"HelveticaNeue-CondensedBold" size:14.0]];
[label setTag:1];
[label setTextColor:green];
[label setBackgroundColor:[UIColor clearColor]];
label.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"barra_cinza_lista.png"]];
[[cell contentView] addSubview:label];
label2 = [[UILabel alloc] initWithFrame:CGRectZero];
[label2 setLineBreakMode:UILineBreakModeWordWrap];
[label2 setMinimumFontSize:FONT_SIZE];
[label2 setNumberOfLines:0];
[label2 setFont:[UIFont systemFontOfSize:FONT_SIZE]];
[label2 setFont:[UIFont fontWithName:#"HelveticaNeue-CondensedBold" size:14.0]];
[label2 setTag:2];
[label2 setTextColor:[UIColor whiteColor]];
[label2 setBackgroundColor:[UIColor clearColor]];
[[cell contentView] addSubview:label2];
}
NSString *text = [self getTableViewRow:tableView index:indexPath];
NSString *title = #" %#";
if(tableView == myTableView1)
title = [NSString stringWithFormat:title, [_titlesResults objectAtIndex:indexPath.row]];
else
title = [NSString stringWithFormat:title, [_titlesVision objectAtIndex:indexPath.row]];
CGFloat widthMax = CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN * 2);
CGSize constraint = CGSizeMake(widthMax, 20000.0f); //Tamanho máximo permitido de largura e altura
CGSize size1 = [title sizeWithFont:[UIFont systemFontOfSize:FONT_SIZE] constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap]; //Tamanho ocupado pelas letras
CGSize size2 = [text sizeWithFont:[UIFont systemFontOfSize:FONT_SIZE] constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap]; //Tamanho ocupado pelas letras
if (!label)
label = (UILabel*)[cell viewWithTag:1];
if (!label2)
label2 = (UILabel*)[cell viewWithTag:2];
[label setText:title];
[label setFrame:CGRectMake(0, 0, 320, MAX(size1.height, 44.0f))];
[label2 setText:text];
[label2 setFrame:CGRectMake(CELL_CONTENT_MARGIN, 3 * CELL_CONTENT_MARGIN + size1.height, widthMax, MAX(size2.height, 44.0f))];
return cell;
}

Answer 1

At the beginning of the method, enumerate through all the UIView objects in [cell.contentView subviews] and get rid of them, like so:
for (UIView *subview in [cell.contentView subviews]) {
[subview removeFromSuperview];
}
This works because all UI elements inherit from UIView and thus can be removed as if they were.

Answer 2

first, uncomment this line:
// if (cell == nil)
if you don't, you are simply creating and allocating a new cell every time you scroll, and never release the old ones...