How to load a url link that is inside a web view and keep it in that web view in SWIFT

问题

I have a web view that has a webpage with links at the bottom. I have a way to deal with them being clicked, but all it does is open them into a new safari browser. This is not what I want.I would like for them to stay inside the web view and allow me to navigate them easily like that. Is there a way to do this?

I have tried just using a regular web view, but then the links at the bottom will not work.

Here is what I have so far:

class ViewController: UIViewController, UIWebViewDelegate {


@IBOutlet weak var myWebview: UIWebView!
@IBOutlet weak var returnButton: UIButton!

override func viewDidLoad() {
    super.viewDidLoad()

    prettyReturnButton(returnButton)

    let url = NSURL(string: "mywebpage")

    myWebview.delegate = self

    print("Web page:" , url)
    let requestObj = NSURLRequest(URL: url!);
    myWebview.loadRequest(requestObj);
    myWebview.keyboardDisplayRequiresUserAction = true



}

func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType: UIWebViewNavigationType) -> Bool {
    switch navigationType {
    case .LinkClicked:
        // Open links in Safari
        //let newRequestObj = NSURLRequest(URL: request.URL!)
       // webView.loadRequest(newRequestObj)
        UIApplication.sharedApplication().openURL(request.URL!)
        return false
    default:
        // Handle other navigation types...
        return true
    }
}

回答1:

In the webview delegate you are going to want to navigate to the new url using that same webview.

For you this means that inside your switch case you should use loadRequest

loadRequest documentation

To fix your issue you should remove the line using UIApplication.sharedApplication().openURL(request.URL!)

and replace it with a call to loadRequest

func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType: UIWebViewNavigationType) -> Bool {
    switch navigationType {

    case .LinkClicked:
        // Open links in Safari

        guard let newRequest = request as? URLRequest else { return false }

        webView.loadRequest(newRequest)
        return false
    default:
        // Handle other navigation types...
        return true
   }
}

Hope this helps! Have a nice day!

回答2:

Give delegates to your UIViewcontroller : UIWebViewDelegate

 let url = NSURL(string: "http://www.djmazacool.com")
 let req = NSURLRequest(URL: url!)
 YOURWEBVIEW.delegate = self
 YOURWEBVIEW.loadRequest(req)



func webViewDidStartLoad(webView: UIWebView)
{
        // start animation
        print("start loaded call")
}
func webViewDidFinishLoad(webView: UIWebView)
{
        // load url complete
        print("loading done call")
}

Output :

Don't Forgot to add this attribute in .plist file.

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
</dict>

来源：https://stackoverflow.com/questions/40144923/how-to-load-a-url-link-that-is-inside-a-web-view-and-keep-it-in-that-web-view-in

标签

ios

swift

uiwebview

uiwebviewdelegate