如何在iOS中制作如下图所示的仪表图？

import UIKit

class GaugeView: UIView {
    var minValue: CGFloat = 0
    var maxValue: CGFloat = 100
    var currentValue: CGFloat = 0
    
    override func draw(_ rect: CGRect) {
        super.draw(rect)
        
        // 绘制背景
        let backgroundPath = UIBezierPath(ovalIn: rect)
        UIColor.lightGray.setFill()
        backgroundPath.fill()
        
        // 绘制刻度线
        let scalePath = UIBezierPath()
        scalePath.lineWidth = 2
        scalePath.move(to: CGPoint(x: rect.midX, y: rect.midY))
        scalePath.addLine(to: CGPoint(x: rect.midX, y: rect.minY))
        UIColor.white.setStroke()
        scalePath.stroke()
        
        // 绘制指针
        let pointerPath = UIBezierPath()
        pointerPath.lineWidth = 4
        pointerPath.move(to: CGPoint(x: rect.midX, y: rect.midY))
        let angle = (currentValue - minValue) / (maxValue - minValue) * CGFloat.pi * 2 - CGFloat.pi / 2
        let pointerLength = rect.width / 2 * 0.8
        let pointerX = rect.midX + cos(angle) * pointerLength
        let pointerY = rect.midY + sin(angle) * pointerLength
        pointerPath.addLine(to: CGPoint(x: pointerX, y: pointerY))
        UIColor.red.setStroke()
        pointerPath.stroke()
    }
    
    func updateGaugeValue(value: CGFloat) {
        currentValue = value
        setNeedsDisplay()
    }
}

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let gaugeView = GaugeView(frame: CGRect(x: 50, y: 50, width: 200, height: 200))
        view.addSubview(gaugeView)
        
        gaugeView.updateGaugeValue(value: 75)
    }
}