我试图在每个createCircle()函数中使用相同的按钮，但当我按下一个按钮并且它运行handleTap()函数时，它只应用于最近添加的圆。我想使用相同的按钮，但当我点击一个单独的按钮，它应该运行我按下的一个动画。

import UIKit

class SecondViewController: UIViewController {
    
    let shapeLayer = CAShapeLayer()
    
    let percentageLabel: UILabel = {
        let label = UILabel()
        label.text = ""
        label.textAlignment = .center
        label.font = UIFont.boldSystemFont(ofSize: 28)
        label.textColor = UIColor(red: 0.59, green: 0.42, blue: 0.23, alpha: 1.00)
        return label
        
    }()
    
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        _ = createCircle(positionX: 100, positionY: 200)
        _ = createCircle(positionX: 100, positionY: 375)
        _ = createCircle(positionX: 100, positionY: 550)
        _ = createCircle(positionX: 100, positionY: 725)
        _ = createCircle(positionX: 300, positionY: 200)
        _ = createCircle(positionX: 300, positionY: 375)
        _ = createCircle(positionX: 300, positionY: 550)
        _ = createCircle(positionX: 300, positionY: 725)
        
    }
    //MARK: - Create Circle
    func createCircle(positionX: Int, positionY: Int) -> (CGPoint) {
        let trackLayer = CAShapeLayer()
        
        let button = UIButton(type: .custom)
        button.frame = CGRect(x: 0, y: 0, width: 100, height: 100)
        button.layer.cornerRadius = 0.5 * button.bounds.size.width
        button.clipsToBounds = true
        button.center = view.center
        button.addTarget(self, action: #selector(handleTap), for: .touchUpInside)
        view.addSubview(button)
        
        let circularPath = UIBezierPath(arcCenter: .zero, radius: 50, startAngle: 0, endAngle: 2 * CGFloat.pi, clockwise: true)
        
        trackLayer.path = circularPath.cgPath
        
        trackLayer.strokeColor = UIColor(red: 0.82, green: 0.69, blue: 0.52, alpha: 1.00).cgColor
        trackLayer.fillColor = UIColor.clear.cgColor
        trackLayer.lineWidth = 10
        trackLayer.position = CGPoint(x: positionX, y: positionY)
        view.layer.addSublayer(trackLayer)
        
        shapeLayer.path = circularPath.cgPath
        
        shapeLayer.strokeColor = UIColor(red: 0.59, green: 0.42, blue: 0.23, alpha: 1.00).cgColor
        shapeLayer.fillColor = UIColor.clear.cgColor
        shapeLayer.lineWidth = 10
        shapeLayer.lineCap = CAShapeLayerLineCap.round
        shapeLayer.position = CGPoint(x: positionX, y: positionY)
        shapeLayer.transform = CATransform3DMakeRotation(-CGFloat.pi / 2, 0, 0, 1)
        
        view.addSubview(percentageLabel)
        
        percentageLabel.frame = CGRect(x: 0, y: 0, width: 150, height: 150)
        percentageLabel.center = CGPoint(x: positionX, y: positionY)
        return CGPoint(x: positionX, y: positionY)
        
    }
    //MARK: - Tap function
    var done = 0
    var toDo = 0
    
    @objc func handleTap(sender: UIButton) {
        toDo = 5
        if done < toDo {
            done += 1
        } else {
            done -= toDo
        }
        let percentage = CGFloat(done) / CGFloat(toDo)
        percentageLabel.text = "\(Int(percentage * 100))%"
        
        DispatchQueue.main.async {
            self.shapeLayer.strokeEnd = percentage
        }
        view.layer.addSublayer(shapeLayer)
    }
}

这是运行代码时发生的情况的图片。当我单击任何图片按钮时，它不是在我按下的任何按钮上运行进度条动画，而是只在最后添加到视图控制器的按钮上运行它。