如何在iOS中绘制梯形？

import UIKit

class TrapezoidView: UIView {
    override func draw(_ rect: CGRect) {
        guard let context = UIGraphicsGetCurrentContext() else { return }
        
        // 设置填充颜色
        context.setFillColor(UIColor.red.cgColor)
        
        // 创建路径
        let path = UIBezierPath()
        
        // 定义梯形的四个点
        let topOffset: CGFloat = 50
        let bottomOffset: CGFloat = 150
        let leftOffset: CGFloat = 50
        let rightOffset: CGFloat = 250
        
        let topLeft = CGPoint(x: leftOffset, y: topOffset)
        let topRight = CGPoint(x: rightOffset, y: topOffset)
        let bottomLeft = CGPoint(x: leftOffset, y: bottomOffset)
        let bottomRight = CGPoint(x: rightOffset, y: bottomOffset)
        
        // 移动到起始点
        path.move(to: topLeft)
        
        // 添加线段
        path.addLine(to: topRight)
        path.addLine(to: bottomRight)
        path.addLine(to: bottomLeft)
        
        // 闭合路径
        path.close()
        
        // 填充路径
        path.fill()
    }
}

// 在ViewController中使用TrapezoidView
class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let trapezoidView = TrapezoidView(frame: CGRect(x: 0, y: 0, width: 300, height: 200))
        trapezoidView.center = view.center
        view.addSubview(trapezoidView)
    }
}