UIImage not shown as expected - ios

Question

- (void)showImageAtTableView:(UITableView *)tableView forRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([tableView indexPathsForSelectedRows].count) {
if ([[tableView indexPathsForSelectedRows] indexOfObject:indexPath] != NSNotFound) {
//cell is expanded
CGFloat frameHeight = [[self.widthArray objectAtIndex:indexPath.row] floatValue];
CGFloat frameWidth = [[self.heightArray objectAtIndex:indexPath.row] floatValue];
//CGFloat yOrigin = [self configureHeightForRowAtIndexPath:indexPath];
CGRect imageFrame = CGRectMake(0,
12,
frameWidth,
frameHeight);
UIImageView *imageView = [[UIImageView alloc] initWithFrame:imageFrame];
imageView.image = [UIImage imageNamed:#"testImage.jpg"];
imageView.contentMode = UIViewContentModeCenter;
//configue which cell
UITableViewCell *cell = [self tableView:tableView cellForRowAtIndexPath:indexPath];
[cell.contentView addSubview:imageView];
}
}
}
the code above is supposed to add a UIImageView to an existing UITableViewCell when tapped. this is the line that call that method (showImageAtTableView:forRowAtIndexPath) :
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath *)indexPath
{
[self updateTableView];
//get and show the image at selected cell
[self showImageAtTableView:tableView forRowAtIndexPath:indexPath];
}
but this is the result when the tableviewcell is tapped:
http://imgur.com/4NMJLf6,XweOgQu
what did I do wrong?

Answer 1

You're not changing the height of the UITableViewCell.
I think a better approach would be to include the UIImageView in the xib / storyboard design. Assuming you have some kind of dto object storing the data showed in the cells, you can keep on them a boolean indicating whether or not the image should be showed.
On your didSelectRowAtIndexPath you'll update that boolean, and do a [tableView reloadData].
In your cellForRowAtIndexPath you'll hide / show the UIImageView according the boolean.
In your heightForRowAtIndexPath you'll check again the boolean value in order to update the height accordingly.
Hope it helps.