iOS Swift UIWebView 链接坐标

Question

我需要获取在 UIWebView 中点击的链接的坐标。我尝试使用 TapGestureRecognizer，但它不会在点击链接时触发。我以为我可以通过 stringByEvaluatingJavaScriptFromString 从 Javascript 获取坐标，但我也无法让它工作。我怎样才能做到这一点？

Answer 1

这个答案的 Swift 等价物:How to detect touch on UIWebView .

import UIKit

class ViewController: UIViewController, UIGestureRecognizerDelegate {

    let myWebView = UIWebView()

    override func viewDidLoad() {
        super.viewDidLoad()

        myWebView.frame = self.view.frame
        self.view.addSubview(myWebView)
        myWebView.loadRequest(NSURLRequest(URL: NSURL(string: "https://stackoverflow.com")!))

        let webViewTapped = UITapGestureRecognizer(target: self, action: "tapAction:")
        webViewTapped.numberOfTouchesRequired = 1
        webViewTapped.delegate = self
        myWebView.addGestureRecognizer(webViewTapped)
    }

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

    func tapAction(sender: UIGestureRecognizer) {
        let point = sender.locationInView(self.view)
        println(point.x)
        println(point.y)
    }