Detecting which UIButton was pressed in a UITableView

Question

I have a UITableView with 5 UITableViewCells. Each cell contains a UIButton which is set up as follows:

- (UITableView         


        

Answer 1

I use a solution that subclass UIButton and I thought I should just share it here, codes in Swift:

class ButtonWithIndexPath : UIButton {
    var indexPath:IndexPath?
}

Then remember to update it's indexPath in cellForRow(at:)

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let returnCell = tableView.dequeueReusableCell(withIdentifier: "cellWithButton", for: indexPath) as! cellWithButton
    ...
    returnCell.button.indexPath = IndexPath
    returnCell.button.addTarget(self, action:#selector(cellButtonPressed(_:)), for: .touchUpInside)

    return returnCell
}

So when responding to the button's event you can use it like

func cellButtonPressed(_ sender:UIButton) {
    if sender is ButtonWithIndexPath {
        let button = sender as! ButtonWithIndexPath
        print(button.indexPath)
    }
}