How to detect one button in tableview cell

To detect a UIButton in a UITableViewCell, you can follow any of the below approaches:

1. Use UIButton IBOutlets

You can create an IBOutlet corresponding to each UIButton in the UITableViewCell and use those outlets to identify which button action is performed.

Example:

class CustomCell: UITableViewCell
{
    @IBOutlet weak var button1: UIButton!
    @IBOutlet weak var button2: UIButton!
    @IBOutlet weak var button3: UIButton!
    @IBOutlet weak var button4: UIButton!
    @IBOutlet weak var button5: UIButton!

    @IBAction func onTapButton(_ sender: UIButton)
    {
        if sender === button1
        {
            //button1 specific code here
        }
        else if sender === button2
        {
            //button2 specific code here
        }
        //and so on..
    }
}

2. Use UIButton Tag property

You can provide a tag value to each of the UIButton present in the UITableViewCell and then use that tag to identify the specific button.

Example:

class CustomCell: UITableViewCell
{
    @IBAction func onTapButton(_ sender: UIButton)
    {
        if sender.tag == 1
        {
            //button1 has a tag = 1
            //button1 specific code here
        }
        else if sender.tag == 2
        {
            //button2 has a tag = 2
            //button2 specific code here
        }
        //and so on..
    }
}

Edit:

For setting different images in selected/unselected state of UIButton, you can use storyboard for that:

For Unselected state:

For Selected state:

Let me know if you still face any issues.