wkwebview_tel

wkwebview中屏蔽了tel的url所以我们要用下面这些代码来解决js调用源生iOS系统拨打电话不能的问题；而uiwebview中不会有这样的问题

Swift 4

extension ViewController {
    //add WKWebView
    fileprivate func addWkWebView() {
            if #available(iOS 10.0, *) {
            configuration.dataDetectorTypes = .phoneNumber
        }
}

extension ViewController: WKNavigationDelegate{
    //服务器开始请求的时候调用
    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)
        }
        let URL = navigationAction.request.url
        print("URL = \(String(describing: URL))");
    }
}