android webview ERR_UNKNOWN_URL_

在android中webview请求网页时，有的网页跳转会报这个错，我之前代码是:

WebViewClient mWebviewclient = new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                view.loadUrl(url);
                return super.shouldOverrideUrlLoading(view, url);
            }

            @Override
            public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
                handler.proceed();
            }

            @Override
            public void onReceivedError(WebView view, int errorCode,
                                        String description, String failingUrl) {
                // TODO Auto-generated method stub
                super.onReceivedError(view, errorCode, description, failingUrl);
            }
        };
        webView.setWebViewClient(mWebviewclient);

网上查了帖子，说是将

webView.setWebViewClient(mWebviewclient);

改为

webView.setWebChromeClient(new WebChromeClient());

这样确实能解决问题，但是会导致其它问题，比如说我想在方法onReceivedSslError()或者onReceivedError()中做些处理，这时就很棘手，我的解决办法是，

WebViewClient mWebviewclient = new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
             if (url == null) return false
                try {
                    if (url.startsWith("http:") || url.startsWith("https:")) {
                        view!!.loadUrl(url)
                        return true
                    } else {
                        val intent = Intent(Intent.ACTION_VIEW, Uri.parse(url))
                       startActivity(intent)
                        return true
                    }
                } catch (e: Exception) { //防止crash (如果手机上没有安装处理某个scheme开头的url的APP, 会导致crash)
                    return false
                }
            }

            @Override
            public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
                handler.proceed();
            }

            @Override
            public void onReceivedError(WebView view, int errorCode,
                                        String description, String failingUrl) {
                // TODO Auto-generated method stub
                super.onReceivedError(view, errorCode, description, failingUrl);
            }
        };
        webView.setWebViewClient(mWebviewclient);

就是在 shouldOverrideUrlLoading()方法中，将view.loadUrl(url)方法去掉就好～
gm_web_view.webChromeClient
gm_web_view.webViewClient
加载顺序不能乱