iOS swift : can't Retrieve current url loaded in UIwebView

Question

我正在 iOS swift webview 应用程序中工作:

我面临的问题是我想获取 webview 显示的每个 url:

在 url 上我必须执行一些 if else 检查。但我无法获取 webview 加载的 url。

webview 显示良好的结果并在单击时加载 url。我想获取 webview 导航的所有 url..

import Foundation
import UIKit


class seconVC: UIViewController {

    var toPass:String!
    var touser:String!
    var toPassing:String!



    @IBOutlet weak var webV: UIWebView!

    @IBOutlet weak var L_back: UIBarButtonItem!

    @IBOutlet weak var R_frwrd: UIBarButtonItem!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        var domurl = toPass;

        var username = touser;

        var passwing = toPassing;



        var sendurl = stringA+username+"/"+passwing;

        //exchange login with auth/username/password
        println(sendurl);

        let url = NSURL (string: sendurl);


        let requestObj = NSURLRequest(URL: url!);
        webV.userInteractionEnabled = true
        webV.loadRequest(requestObj);



    }

    @IBAction func L_back(sender: UIBarButtonItem) {

        if (webV.canGoBack){
            webV.goBack()
        }


    }

    @IBAction func R_frwrd(sender: UIBarButtonItem) {

        if (webV.canGoForward){
            webV.goForward()
        }

    }



    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.


    }



}

我想要的只是获取 webview 的当前 url 和导航按钮的字符串:请帮忙？我引用了所有互联网，但没有任何解决方案适用于我的情况。

Answer 1

有几个 UIWebViewDelegate，例如 shouldStartLoadWithRequest 或 webViewDidStartLoad 或 webViewDidFinishLoad 或 didFailLoadWithError，帮助您实现目标。如果你想在 View 完成后执行操作，那么实现这个委托(delegate)方法

swift 3

if let currentURL = webView.request?.url?.absoluteString{
         print(currentURL)
    }

正如它提到的here .