Question

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How to know the UITableview row number

I have a tableView and a tableViewCell on this tableView. I defined another class for the tableViewCell called CustomCell so that I coded the necessary customizations and also created a button (on this cell). When the button on a tableViewCell is clicked, I want to learn which tableViewCell contains that button so that I can make the necessary changes only to that cell (which contains the button clicked)

How can I understand that which tableViewCell contains the button that is clicked?

Answer 1

One strategy for implementing this is to assign a tag with the row number to the button that was pressed:

- (UITableViewCell *)tableView:(UITableView *)tableView 
         cellForRowAtIndexPath:(NSIndexPath *)indexpath {
    YourCustomCell *cell = // Code
    cell.button.tag = indexPath.row;

    // Other cell preparation code

    return cell;
}

Then, in the action for the button, you can see what its tag is to determine what model object that corresponds to:

- (void)didSelectButton:(id)sender {
    UIButton *button = sender;
    NSInteger tag = button.tag;

    YourModelObject *item = self.items[tag];

    //    Continue with the business logic for what should
    //    happen when that button is pressed.
}