如何在swift中根据圆圈的百分比填充笔触颜色

import UIKit

func drawCircle(withPercentage percentage: CGFloat, fillColor: UIColor, in view: UIView) {
    let center = CGPoint(x: view.bounds.midX, y: view.bounds.midY)
    let radius = min(view.bounds.width, view.bounds.height) / 2
    
    let startAngle = -CGFloat.pi / 2
    let endAngle = startAngle + 2 * CGFloat.pi * percentage
    
    let path = UIBezierPath(arcCenter: center, radius: radius, startAngle: startAngle, endAngle: endAngle, clockwise: true)
    
    path.addLine(to: center)
    path.close()
    
    fillColor.setFill()
    path.fill()
}

// 调用示例
let circleView = UIView(frame: CGRect(x: 0, y: 0, width: 200, height: 200))
circleView.backgroundColor = UIColor.white

let percentage: CGFloat = 0.75
let fillColor = UIColor.blue

drawCircle(withPercentage: percentage, fillColor: fillColor, in: circleView)