Android save WebView rendered picture.

gistfile1.java

ImageView imageview;
WebView webview;
class Background extends AsyncTask<Void, Void, Bitmap>
{
    @Override
    protected Bitmap doInBackground(Void... params)
    {
        try
        {
            Thread.sleep(2000);
            Bitmap bitmap = Bitmap.createBitmap(webview.getWidth(), webview.getHeight(), Config.ARGB_8888);
            Canvas canvas = new Canvas(bitmap);
            webview.draw(canvas);
            return bitmap;
        }
        catch (InterruptedException e){}
        catch (Exception e){}
        return null;
    }
    @Override
    protected void onPostExecute(Bitmap result)
    {
        imageview.setImageBitmap(result);
    }
}


webview.setWebChromeClient(new WebChromeClient()
{
    public void onProgressChanged(WebView view, int progress)  
    {
        if(progress==100)
            new Background().execute();
    }
});