Launching Phone/Email/Map Links in Wkwebview

WKWebView issues with tel: links

Managed to find a solution finally:

import UIKit
import WebKit

class ViewController: UIViewController, WKNavigationDelegate, WKUIDelegate{

  @IBOutlet weak var webView: WKWebView!

  override func viewDidLoad() {
    webView.navigationDelegate = self
    webView.uiDelegate = self
    super.viewDidLoad()
    let htmlpath = Bundle.main.path(forResource: "index", ofType: "html")
    let url2 = URL(fileURLWithPath: htmlpath!)
    let request = URLRequest(url: url2)
    webView.load(request)
    webView.scrollView.bounces = false
    //webview.configuration.dataDetectorTypes = .phoneNumber
  }

  func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
    if navigationAction.request.url?.scheme == "tel" {
        UIApplication.shared.openURL(navigationAction.request.url!)
        decisionHandler(.cancel)
    } else {
        decisionHandler(.allow)
    }
}

Using this seems to pick up the tel: links fine, an answer I found on here previously didn't have the else statement so fired decisionHandler more than once which created the error, the else statement fixed that and now seems fine.

WKWebView: mailto links in html content not opening mail app

One way to do what you want would be to implement WKNavigationDelegate:

import UIKit
import WebKit

class ViewController: UIViewController {

    @IBOutlet weak var webView: WKWebView!

    override func viewDidLoad() {
        super.viewDidLoad()

        guard
            let file = Bundle.main.path(forResource: "test", ofType: "html"),
            let html = try? String(contentsOfFile: file) else {
                return
        }

        webView.navigationDelegate = self
        webView.loadHTMLString(html, baseURL: nil)
    }

    @IBAction func didTapButton(_ sender: Any) {
        let email = "email@email.com"
        guard
            let url = URL(string: "mailto:\(email)") else {
                return
        }

        UIApplication.shared.open(url, options: [:], completionHandler: nil)
    }
}

extension ViewController: WKNavigationDelegate {
    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction,
                 decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
        guard
            let url = navigationAction.request.url,
            let scheme = url.scheme else {
                decisionHandler(.cancel)
                return
        }

        if (scheme.lowercased() == "mailto") {
            UIApplication.shared.open(url, options: [:], completionHandler: nil)
            // here I decide to .cancel, do as you wish
            decisionHandler(.cancel)
            return
        }
        decisionHandler(.allow)
    }
}

Here you have a ViewController that has webView as an outlet, this WKWebView would load an html file like this:

<a href="mailto:email@email.com">Mail me</a>

And I also added in storyboard a button just for reference, which would have the IBAction didTapButton described above.

The key here is:

func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction,
                 decisionHandler: @escaping (WKNavigationActionPolicy) -> Void)

Which would give you the URL and let you decide what policy is suitable for it. Here I check if it contains mailto: as I already know this is what you're interested in so if it does, I simply open the URL as I would do if the user presses an UIButton visible on screen.

Hope it helps, cheers!

LE: Make sure you run on a real device (simulators don't have Mail app installed), also make sure you have the Mail app installed, cause I didn't..

WKWebView open links from certain domain in safari

You can implement WKNavigationDelegate, add the decidePolicyForNavigationAction method and check there the navigationType and requested url. I have used google.com below but you can just change it to your domain:

Xcode 8.3 • Swift 3.1 or later

import UIKit
import WebKit

class ViewController: UIViewController, WKNavigationDelegate {

    let webView = WKWebView()

    override func viewDidLoad() {
        super.viewDidLoad()
        
        webView.frame = view.bounds
        webView.navigationDelegate = self

        let url = URL(string: "https://www.google.com")!
        let urlRequest = URLRequest(url: url)

        webView.load(urlRequest)
        webView.autoresizingMask = [.flexibleWidth,.flexibleHeight]
        view.addSubview(webView)
    }

    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
        if navigationAction.navigationType == .linkActivated  {
            if let url = navigationAction.request.url,
                let host = url.host, !host.hasPrefix("www.google.com"),
                UIApplication.shared.canOpenURL(url) {
                UIApplication.shared.open(url)
                print(url)
                print("Redirected to browser. No need to open it locally")
                decisionHandler(.cancel)
                return
            } else {
                print("Open it locally")
                decisionHandler(.allow)
                return
            }
        } else {
            print("not a user click")
            decisionHandler(.allow)
            return
        }
    }
}

---

Related Topics