Question

I have a UIButton inside my custom cell and I want to trigger an action when the user presses that button BUT I need to know from which row the UIButton was pressed.

Here is my code:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell"];
    [self configureCell:cell atIndexPath:indexPath];
    return cell;

    ...

    [button addTarget:self action:@selector(buttonPressedAction:)forControlEvents:UIControlEventTouchUpInside];

}

- (void)buttonPressedAction:(UIButton *)button
{
    //int row = indexPath.row;
    //NSLog(@"ROW: %i",row);
}

How do I pass the indexPath as argument to my selector?

Answer 1

You can either set the tag property of the button to the row number:

button.tag = indexPath.row;

and retrieve it using

NSInteger row = button.tag;

or set the index path object itself as an associated object to the button:

objc_setAssociatedObject(button, "IndexPath", indexPath);

and

NSIndexPath *ip = objc_getAssociatedObject(button, "IndexPath");