Android：在google doc中打开pdf时，webview有时会显示空白屏幕

Question

webView.getSettings().setAllowFileAccessFromFileURLs(true);
webView.getSettings().setAllowUniversalAccessFromFileURLs(true);

@kkarakk抱歉回复晚了..请在下面找到我的代码

 webView.getSettings().setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
            webView.getSettings().setBuiltInZoomControls(true);
            webView.getSettings().setSupportZoom(true);
     /*     webView.getSettings().setAllowFileAccessFromFileURLs(true);
            webView.getSettings().setAllowUniversalAccessFromFileURLs(true);*/
            webView.setWebViewClient(new MyWebViewClient());
            webView.getSettings().setJavaScriptEnabled(true);
            webView.loadUrl("http://docs.google.com/gview?embedded=true&url=MYURL");

 private class MyWebViewClient extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            super.onPageStarted(view, url, favicon);
        }
        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);
            webView.loadUrl("javascript:(function() { document.querySelector('[role=\"toolbar\"]').remove();})()");
        }
    }

Answer 1

      public void onPageFinished(WebView view, String url) {
            if (view.getTitle().equals(""))
                view.loadUrl(url)
            } 
            else {
               //Success
            }
      }