Changing the image of the cell when it's checked - iphone

Question

In my UITableView, i need to get the event of the user, so when the cell is selected(checked), i put btn_checked.png and when it's unchecked, i put the btn_unchecked.png.
I guess, what i try to do should be in the didSelectRowAtIndexPath method, so this is my code:
- (void)tableView:(UITableView *)tableView
didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSArray *listData =[self->tableContents objectForKey:
[self->sortedKeys objectAtIndex:[indexPath section]]];
UITableViewCell* theCell = [tableView cellForRowAtIndexPath:indexPath];
UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"btn_unchecked.png"]];
theCell.accessoryView = imageView;
}
My snippet code doesn't work, so the btw_unchecked.png isn't placed when the row is checked, also, i need to get the event of checked/unchecked to place the right image to the right event.
Thanx in advance.

Answer 1

As an example, this code snippet will toggle the cell's checkmark when the cell is tapped. The pattern is to force a selective reload from the table's datasource when the delegate method is invoked.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
// Dequeue the cell... then:
static NSString *CellIdentifier = #"tvcOEList";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.accessoryType = (cell.accessoryType == UITableViewCellAccessoryNone) ? UITableViewCellAccessoryCheckmark : UITableViewCellAccessoryNone;
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[self.tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES];
}

Answer 2

You can use following code.
[cell.contentView addSubview:imageView];
i hope this will help you..