My ImageLoader class

gistfile1.java

package com.leandog.puppies.data;

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;

import android.graphics.drawable.Drawable;

public class ImageLoader {

	public Drawable loadImageFrom(final String url) {
		String imageUrl = "http://leandogasn.local:3000/assets/" + url;
        Drawable image = imageOperations(imageUrl);
		return image;
	}
    
    private Object fetch(String address) throws MalformedURLException, IOException {
        URL url = new URL(address);
        Object content = url.getContent();
        return content;
    }      
    
    private Drawable imageOperations(String url) {
        try {
            InputStream is = (InputStream) this.fetch(url);
            Drawable d = Drawable.createFromStream(is, "src");
            return d;
        } catch (MalformedURLException e) {
            return null;
        } catch (IOException e) {
            return null;
        }
    }    
}

And the update to getView in PuppyAdapter

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View theView = convertView;

        if( null == theView) {
            final LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            theView = inflater.inflate(layout.puppy_item, null);
        }

        final Puppy thePuppy = thePuppies.get(position);
        ImageView imageView = findFor(theView, id.puppy_image);
        imageView.setImageDrawable(imageLoader.loadImageFrom(thePuppy.getImageUrl()));
        setText(theView, id.name, thePuppy.getName());
        setText(theView, id.breed, thePuppy.getBreed());
        setText(theView, id.gender, thePuppy.getGender());
        return theView;
    }

And the update to PuppyAdapter

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View theView = convertView;

        if( null == theView) {
            final LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            theView = inflater.inflate(layout.puppy_item, null);
        }

        final Puppy thePuppy = thePuppies.get(position);
        ImageView imageView = findFor(theView, id.puppy_image);
        imageView.setImageDrawable(imageLoader.loadImageFrom(thePuppy.getImageUrl()));
        setText(theView, id.name, thePuppy.getName());
        setText(theView, id.breed, thePuppy.getBreed());
        setText(theView, id.gender, thePuppy.getGender());
        return theView;
    }