handling external links in swift UIWebKit?

I'm working on a webview using swift 4.
I'm loading local html files, in these pages are some links to other websites, but once I click on any of them I want to load them in safari or default browser instead of the WebView (browser).

my webView is called "browser"

Here are my ViewController.swift codes:

import UIKit
import WebKit

class ViewController: UIViewController

@IBOutlet weak var browser: WKWebView!
override func viewDidLoad()
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.


let htmlpath = Bundle.main.path(forResource: "kusrc/index", ofType: "html")
let url = URL(fileURLWithPath: htmlpath!)
let request = URLRequest(url: url)
browser.load(request)




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









Could somebody help me out? most of the results in google were not what I needed...

Is there the possibility to make an if sentence, where it gets asked if the stringprefix ="http:// or https://" then open safari, otherwise "browser"

1 Answer
1

I think you are looking for this delegate method:

func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void)
if navigationAction.navigationType == .linkActivated
guard let url = navigationAction.request.url else
decisionHandler(.allow)

return


UIApplication.shared.open(url)
decisionHandler(.cancel)
else
decisionHandler(.allow)




If you want to differentiate according the URL scheme, you can use URLComponents to split the URL in its parts.

URL

URLComponents

let components = URLComponents(url: url, resolvingAgainstBaseURL: false)
if components?.scheme == "http" || components?.scheme == "https"
// insert your code here



// edit (a bit more detailed):

WebKit

import WebKit

WKNavigationDelegate

class ViewController: UIViewController, WKNavigationDelegate

browser.navigationDelegate = self

A gist of how your class should look like in the end: WKWebView open links in Safari

And here is a very nice tutorial about the topic: https://www.hackingwithswift.com/example-code/wkwebview/how-to-control-the-sites-a-wkwebview-can-visit-using-wknavigationdelegate

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