How to detect one button in tableview cell

Question

How to detect one button in UITableviewCell, I have 10 UIButton in UITableViewCell, next when I click on UIButton then i

Answer 1

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.

Answer 2

In your cellForRowAt method, do add tag number to the buttons

cell.bookMarkBtn.tag = indexPath.row;

Then

@IBAction func bookMarkBtnAction(_ sender: UIButton) {

    sender.isSelected = !sender.isSelected

    if(sender.tag == 0)
    {
        ...
    } else if (sender.tag == 1)
    {
        ...
    }
}

Answer 3

Create protocol

 protocol HomeTableViewCellDelegate {
    func bookMarkBtnTapped(btn: UIButton)
 }


class HomeTableViewCell: UITableViewCell {

   @IBOutlet weak var bookMarkBtn: UIButton!

   //add delegate var for protocol
   var delegate: HomeTableViewCellDelegate?

   @IBAction func bookMarkBtnAction(_ sender: UIButton) {

    sender.isSelected = !sender.isSelected

    if(sender.isSelected == true)
    {
        sender.setImage(UIImage(named:"favorite_blue"), for: UIControlState.normal)
    }
    else
    {
        sender.setImage(UIImage(named:"favorite_white"), for: UIControlState.normal)
    }

    //set this which button is pressed
    self.delegate?.bookMarkBtnTapped(btn: sender)
   }
}

HomeViewController implement HomeTableViewCellDelegate method

class HomeViewController: HomeTableViewCellDelegate {

     func bookMarkBtnTapped(btn: UIButton) {

 //        here btn is book mark button tapped by user from tableview cell
     }
}

Answer 4

Use button tag for this.

In tableViewController

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

    let cell = tableView.dequeueReusableCell(withIdentifier: "HomeTableViewCell", for: indexPath) as! HomeTableViewCell
    cell.bookMarkBtn.tag = indexPath.row

    cell.bookMarkBtn.addTarget(self, action: #selector(self. bookMarkBtnAction), for: .touchUpInside)
    return cell
}



@objc func bookMarkBtnAction(sender: UIButton) {
   if sender.tag == 0 { //or which indexpath do you want. 
     //code 
   } else if sender.tag == 1 {
    //code
   }  
  ..
 } 

remove @IBAction func bookMarkBtnAction(_ sender: UIButton) from tableviewcell class