android load image from my class in webview loaddatawithbaseurl

Question

I want to download image in HTML with my class in webview. how to do? my web load in baseurl. my class download image from internet. please show with example thanks

Answer 1

Use this:webviewId.loadDataWithBaseURL("", response, "text/html", "UTF-8", "");

OR

Html.ImageGetter() use this, this will search <img> tag 

http://developer.android.com/reference/android/text/Html.ImageGetter.html

Example links:

Html.ImageGetter

Android HTML ImageGetter as AsyncTask

Answer 2

    public class ImageGetter  implements Html.ImageGetter {
        Context c;
        View container;

        public ImageGetter(View t, Context c) {
            this.c = c;
            this.container = t;
        }

        public Drawable getDrawable(String source) {
            URLDrawable urlDrawable = new URLDrawable();

            // get the actual source
            ImageGetterAsyncTask asyncTask =
                new ImageGetterAsyncTask( urlDrawable);

        asyncTask.execute(source);

        // return reference to URLDrawable where I will change with actual image from
        // the src tag
        return urlDrawable;
    }

    public class ImageGetterAsyncTask extends AsyncTask<String, Void, Drawable> {
        URLDrawable urlDrawable;

        public ImageGetterAsyncTask(URLDrawable d) {
            this.urlDrawable = d;
        }

        @Override
        protected Drawable doInBackground(String... params) {
            String source = params[0];
            return fetchDrawable(source);
        }

        @Override
        protected void onPostExecute(Drawable result) {
            // set the correct bound according to the result from HTTP call

            urlDrawable.setBounds(0, 0, 0 + result.getIntrinsicWidth(), 0
                    + result.getIntrinsicHeight());


            // change the reference of the current drawable to the result
            // from the HTTP call
            urlDrawable.drawable = result;

            // redraw the image by invalidating the container
            ImageGetter.this.container.invalidate();
        }


        public Drawable fetchDrawable(String urlString) {
            try {
                //Get image from online and save it to the storage.
                InputStream is = fetch(urlString);
                Drawable drawable = Drawable.createFromStream(is, "src");
                drawable.setBounds(0, 0, 0 + drawable.getIntrinsicWidth(), 0
                        + drawable.getIntrinsicHeight());

                Bitmap bm = BitmapFactory.decodeStream( is);
                String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
                File file = new File(extStorageDirectory, urlString+".PNG");
                FileOutputStream outStream = new FileOutputStream(file);
                bm.compress(Bitmap.CompressFormat.PNG, 100, outStream);
                outStream.flush();
                outStream.close();
                return drawable;
            } catch (Exception e) {
                // offline use the stored image
                String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
                Bitmap bitmap = BitmapFactory.decodeFile(extStorageDirectory+urlString+".PNG");
                Drawable drawable = new BitmapDrawable(bitmap);
                drawable.setBounds(0, 0, 0 + drawable.getIntrinsicWidth(), 0
                        + drawable.getIntrinsicHeight());

                return drawable;
            }
        }

        private InputStream fetch(String urlString) throws IOException {
            DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpGet request = new HttpGet(urlString);
            HttpResponse response = httpClient.execute(request);
            return response.getEntity().getContent();
        }
    }
}