textview - Android ImageGetter images overlapping text

Question

I'm trying to load a block of HTML into a TextView, including images, using

URLImageParser p = new URLImageParser(articleBody, this);
Spanned htmlSpan = Html.fromHtml(parsedString, p, null);

parsedString is the HTML, by the way. Anyway, it loads up, but the images aren't having any space created for them to sit in, so they end up overlapping the text above them. Here's my URLImageParser file:

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

/***
 * Construct the URLImageParser which will execute AsyncTask and refresh the container
 * @param t
 * @param c
 */
public URLImageParser(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
        Log.d("height",""+result.getIntrinsicHeight());
        Log.d("width",""+result.getIntrinsicWidth());
        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
        URLImageParser.this.container.invalidate();
    }

    /***
     * Get the Drawable from URL
     * @param urlString
     * @return
     */
    public Drawable fetchDrawable(String urlString) {
        try {
            URL aURL = new URL(urlString);
            final URLConnection conn = aURL.openConnection(); 
            conn.connect(); 
            final BufferedInputStream bis = new BufferedInputStream(conn.getInputStream()); 
            final Bitmap bm = BitmapFactory.decodeStream(bis);
            Drawable drawable = new BitmapDrawable(bm);
            drawable.setBounds(0,0,bm.getWidth(),bm.getHeight());
            return drawable;
        } catch (Exception e) {
            return null;
        } 
    }
}

}

Any ideas? Thanks a ton.

Answer 1

You could change your cointainer c (view) to a textView and then make your onPostExecute look like this:

@Override 
protected void onPostExecute(Drawable result) { 
    // set the correct bound according to the result from HTTP call 
    Log.d("height",""+result.getIntrinsicHeight()); 
    Log.d("width",""+result.getIntrinsicWidth()); 
    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 
    URLImageParser.this.container.invalidate();

    // For ICS
    URLImageParser.this.container.setHeight((URLImageParser.this.container.getHeight() 
    + result.getIntrinsicHeight()));

    // Pre ICS
    URLImageParser.this.textView.setEllipsize(null);
} 

This will first draw the image and then immediately set the height of the TextView to the drawable's height + the TextViews height