how to load image from expansion file into webview

Question

In our app we have html pages which are loaded into webview from the asset directory. These in turn load jpg images from the same place. I need to move the jpg\'s to an expa

Answer 1

For the benefit of anyone else out there struggling with this, I have a solution, at least for API 11 and greater. I found that ShouldInterceptRequest does in fact get called only if webview.loadUrl(assetFile) doesn't find the file in the asset folder. Perhaps this should have been obvious but I haven't seen it documented anywhere (and I thought I had tried deleting the file but must have done something else wrong) n shouldInterceptRequest looks as follows:

    @Override
    public WebResourceResponse shouldInterceptRequest(WebView view, String url)
    {
        String fileName = url.substring(assetPrefix.length());

        InputStream inputStream = expansionFile.getInputStream(fileName);

        if (url.endsWith("jpg") || url.endsWith("png"))
            return new WebResourceResponse("image/*", "base64", inputStream);

        return super.shouldInterceptRequest(view, url);
    }

Now if anyone has ideas on a solution for API 10 that would still be appreciated. I've seen a suggestion to override shouldOverrideUrlLoading (which we are doing for other purposes) but that doesn't seem to be called when an image is loaded from the html file, only when advancing to a whole new web page

Answer 2

Just an addition to Chris Fawcett's answer. The shouldInterceptRequest gets called regularly for loading images that are outside the assets folder. I was stuck up with this for quite some time. Thanks to Chris.

Answer 3

The first answer to How to load an image stored in a byte array to WebView? works for API 10. Thank you Qorbani! Sorry I can't upvote your answer because I don't have the reputation

Christine