iOS開發中，在UIWebView中添加手勢的方法如下

// 監控界面點擊手勢
let singleTap = UITapGestureRecognizer(target: self, action: "singleTapAction:")
        
// 注意：不做如下處理，無法監控到單擊手勢
singleTap.cancelsTouchesInView = false
singleTap.delegate = self
        
self.webView.addGestureRecognizer(singleTap)

協議實現：

// MARK: - UIGestureRecognizerDelegate
func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWithGestureRecognizer otherGestureRecognizer: UIGestureRecognizer) -> Bool {
    return true
}