Open mailto link from UIWebView

Question

Hi everyone I am trying to develop a webView application. Inside my webview I have a mailto link and I want to open it outside the webview on the mail application of iOS.

This is my code

  func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool{
        print("stampa richiesta : ")
        print(request)
              var stringaURL = ""
      /
            stringaURL = try! String(contentsOf: request.url!, encoding: String.Encoding.ascii)
      /
        /
        /


        if navigationType == UIWebViewNavigationType.linkClicked{
            if((stringaURL.range(of:"www.collegiodeirettori.net/palio/")) != nil ){
              print("stampa richiesta : ")
                print(request)
            }
            else{
                print("stampa richiesta : ")
                print(request)
                UIApplication.shared.openURL(request.url!)
                    /
                    return false;
         
         
            }
     


        }

        return true;

}

I already made a func that control if a link have to be opened in safari and that works but no for the mailto link.. Any ideas? Thanks!

This is the error that report when I click on mailto link :

fatal error: 'try!' expression unexpectedly raised an error: Error Domain=NSCocoaErrorDomain Code=256 "The file couldn’t be opened." UserInfo={NSURL=mailto:turismo@comune.asti.it}:

Any

Swift

4.2k

Posted by

Alex142

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Answer 1

Your

String(contentsOf:encoding:)

code is trying to read the content of the URL, which makes sense for file URLs, HTTP URLs, and so on, but makes no sense for

mailto

URLs. If you want to get a string representation of the URL, use the

absoluteString

property.

Or, better yet, learn to love

URLComponents

, which lets you look at the parts of the URL without having to do string parsing. For example:

let url = URL(string: "mailto:turismo@comune.asti.it")!
if let uc = URLComponents(url: url, resolvingAgainstBaseURL: true) {
    print(uc.scheme ?? "nil")  // -> mailto
    print(uc.path)              // -> turismo@comune.asti.it
}

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eskimo

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Open mailto link from UIWebView

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