如何将手势识别器添加到UIWebView子类？

import UIKit

class CustomWebView: UIWebView {
    override init(frame: CGRect) {
        super.init(frame: frame)
        addGestureRecognizers()
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        addGestureRecognizers()
    }
    
    private func addGestureRecognizers() {
        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(handleTapGesture(_:)))
        self.addGestureRecognizer(tapGesture)
    }
    
    @objc private func handleTapGesture(_ gesture: UITapGestureRecognizer) {
        // 处理手势识别的逻辑
    }
}

let webView = CustomWebView(frame: CGRect(x: 0, y: 0, width: 320, height: 480))
self.view.addSubview(webView)