UICollectionView with buttons

Question

I am using a UICollectionView and I am thinking how to add buttons for each collection view cell and I don't want all buttons to do the same actions. I need to change buttons actions. I don't know how to do that.

import UIKit

class FirstARViewController: UIViewController , UICollectionViewDelegate , UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {


    @IBOutlet weak var collectionView: UICollectionView!
    var imagescv = ["cv1","cv2","cv3","cv4","cv5"]

    override func viewDidLoad() {
        super.viewDidLoad()

        collectionView.delegate = self
        collectionView.dataSource = self
    }

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return imagescv.count
    }

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! cellimagesar

        cell.layer.cornerRadius = 5

        cell.layer.borderWidth = 1

        cell.myImages.image = UIImage(named: imagescv [indexPath.row])
        cell.myImages.contentMode = .scaleToFill
        return cell
    }
    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
        return CGSize(width: 182, height: 290)
    }
}

Answer 1

Assign the tag and action to the button inside the collectionviewcell. Assign indexPath.item as button tag is the best approach to identify the particular button from the number of cells. All you need to do within cellForItemAt delegate method.

cell.btnCounter.tag = indexPath.item
cell.btnCounter.addTarget(self, action: #selector(self.buttonClicked), for: .touchUpInside)

And now you just need to handle the event as below

func buttonClicked(_ sender: UIButton) {
        //Here sender.tag will give you the tapped Button index from the cell
        //You can identify the button from the tag  
    }