Android ERR_UNKNOWN_URL_SCHEME

笔者在Android WebView中拉起App报错ERR_UNKNOWN_URL_SCHEME

错误原因很简单，WebView默认只支持https http 等协议，并不支持AndroidManifet中定义的这个scheme协议。如下是我原代码

			WebViewClient mWebviewclient = new WebViewClient() {
    
    
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
    
    
            //返回true代表在当前webview中打开，返回false表示打开浏览器
                view.loadUrl(url);
                return true;
            }

            @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);

调整shouldOverrideUrlLoading代码段，当遇到我定义的scheme协议时，通过Intent的方式打开即可

            public boolean shouldOverrideUrlLoading(WebView view, String url) {
    
    
                //return super.shouldOverrideUrlLoading(view, url);
                if (url.startsWith("http:")||url.startsWith("https:")||url.startsWith("ftp")){
    
    
                    view.loadUrl(url);
                    return true;
                }
                else if (url.startsWith("scheme://")){
    
    
                    Intent intent=new Intent(Intent.ACTION_VIEW, Uri.parse(url));
                    startActivity(intent);
                    return true;
                }
                return false;
            }