Whoops! There was a …previewing this pdf document android

问题

My application has a list of pdf inside listview. The pdf is viewed inside the application using a webview that open a Google Docs sheet. It works fine for the first opened PDF, but when going back and opening another PDF I got the error "whoops! There was a problem previewing this document". Is there some kind of limitation on opening PDF using google sheet. If so, how can I get full rights to open any PDF I want. can someone help please. Here is my code.

    //---you need this to prevent the webview from
    // launching another browser when a url
    // redirection occurs---
    wv.setWebViewClient(new Callback());
    wv.getSettings().setJavaScriptEnabled(true);
    wv.getSettings().setJavaScriptEnabled(true);
    wv.getSettings().setAllowFileAccess(true);

    wv.loadUrl("https://docs.google.com/gview?embedded=true&url=" + SharepreferenceController.getPrefSavePdfInfo());

回答1:

Try increasing the Version/Compatibility of the PDF. This worked for me.

Edit: I believe it is more of a size issue. When I changed the Version (from Acrobat 9.0 to 10.0) I had also optimized the PDF making it a smaller file. My larger files of the same Version still do not work.

回答2:

I was having the same issue. What solved it for me was clearing the WebView cache before trying to load another PDF.

WebView webView=(WebView)findViewById(R.id.webView);
webView.clearCache(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("https://docs.google.com/viewer?url=" + url);

来源：https://stackoverflow.com/questions/26864593/whoops-there-was-a-previewing-this-pdf-document-android