Using a custom image for a UITableViewCell's accessoryView and having it respond to UITableViewDelegate

Question

I\'m using a custom drawn UITableViewCell, including the same for the cell\'s accessoryView. My setup for the accessoryView happens by the way of something like

Answer 1

Swift 5

This approach uses the UIButton.tag to store the indexPath using basic bit-shifting. The approach will work on 32 & 64 bit systems as long as you don't have more than 65535 sections or rows.

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

    let cell = tableView.dequeueReusableCell(withIdentifier: "cellId")
    let accessoryButton = UIButton(type: .custom)
    accessoryButton.setImage(UIImage(named: "imageName"), for: .normal)
    accessoryButton.sizeToFit()
    accessoryButton.addTarget(self, action: #selector(handleAccessoryButton(sender:)), for: .touchUpInside)

    let tag = (indexPath.section << 16) | indexPath.row
    accessoryButton.tag = tag
    cell?.accessoryView = accessoryButton

}

@objc func handleAccessoryButton(sender: UIButton) {
    let section = sender.tag >> 16
    let row = sender.tag & 0xFFFF
    // Do Stuff
}