Question

我试过使用JavaScriptInterface在WebView中做过。但它没有用。如何从XWalkView获取HTML内容？

通过这种方式，我可以从WebView获取HTML：

    public class MainActivity extends AppCompatActivity {

    WebView myWebView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        myWebView = (WebView) findViewById(R.id.webView);
        WebSettings webSettings = myWebView.getSettings();

        webSettings.setJavaScriptEnabled(true);

        myWebView.loadUrl("http://joerichard.net/api/test/generate.htm");
        myWebView.getSettings().setJavaScriptEnabled(true);
        myWebView.addJavascriptInterface(new MyJavaScriptInterface(this), "HtmlViewer");

        myWebView.setWebViewClient(new WebViewClient() {
            @Override
            public void onPageFinished(WebView view, String url) {
                if(url.endsWith("generate.htm")){
                    myWebView.loadUrl("javascript:window.HtmlViewer.showHTML" +
                            "('<html>'+document.getElementsByTagName('html')[0].innerHTML+'</html>');");
                }
            }
        });

    }

    class MyJavaScriptInterface {

        private Context ctx;

        MyJavaScriptInterface(Context ctx) {
            this.ctx = ctx;
        }

        public void showHTML(String html) {
            Document doc = Jsoup.parse(html);
        }

    }

}

我为XWalkView尝试了相同但没有成功。如何从XWalkView获取HTML源代码？

Answer 1

添加JavaScript界面：

 webview.addJavascriptInterface(new test(this),"bla");

设置客户端

  webview.setResourceClient(new XWalkResourceClient(webview) {

                @Override
                public void onProgressChanged(XWalkView view, int progressInPercent) {
                    super.onProgressChanged(view, progressInPercent);
                    pbLoading.setProgress(progressInPercent);
                }

                @Override
                public void onLoadFinished(XWalkView view, String url) {
                    super.onLoadFinished(view, url);
                    webview.load("javascript:window.bla.showHTML" +
                            "('<html>'+document.getElementsByTagName('html')[0].innerHTML+'</html>');"
                            ,null);
                }
            });

实现html功能

class test{
        private Context ctx;

        test(Context ctx) {
            this.ctx = ctx;
        }
         @JavascriptInterface
        public void showHTML(String html) {
            new AlertDialog.Builder(ctx).setTitle("HTML").setMessage(html)
                    .setPositiveButton(android.R.string.ok, null).setCancelable(false).create().show();
        }

    }

如何从XWalkView获取html内容？

1 个答案: