Android: Issues with images downloading
<p>I have an app in which i am downloading and displaying images in a thread. Everything is working fine. But when the images are getting loaded same image is getting loaded in two to three places and when we scroll the screen images are loaded correctly. Please can any one of you can give any suggestions to this?</p>

<p>code:</p>

<pre><code>try{
    holder.progress.setVisibility(View.VISIBLE);
    DownLoadImageInAThreadHandler(Item, holder);

}
catch(Exception e)
{
    System.out.println("Exception in Downloading image : " + e.getMessage());
}
return convertView;
}


//This code is outside the getview method
public void DownLoadImageInAThreadHandler(final CategoryData Item, final ViewHolder holder)
{
    nImageDownLoads++;

    System.out.println("The images being downloaded :" + nImageDownLoads);

    final Handler handler = new Handler()
    {
        @Override  public void handleMessage(Message message)
        {
            holder.imgitem.setImageDrawable((Drawable) message.obj);
            holder.imgitem.setVisibility(View.VISIBLE);
            holder.progress.setVisibility(View.GONE);
        }
    };
    //Thread for downloading the images
    Thread t = new Thread()
    {
        public void run()
        {
            try
            {
                Item.bImageDownLoaded = 2;
                System.out.println("Downloading image      :"+Item.ImageUrl);
                drawable=getDrawableFromUrl(Item.ImageUrl);
                nImageDownLoads--;
                System.out.println("Downloaded image :" + Item.ImageUrl);
                System.out.println("Remaining images for downloading: " + nImageDownLoads);
                if(drawable != null)
                {                                                          
                    Item.bImageDownLoaded = 1;
                    //Send the message to the handler
                    Message message = handler.obtainMessage(1, drawable);
                    handler.sendMessage(message);
                }
                else{
                    int idNoImage = R.drawable.giftsuggestionsnoimage;
                    Drawable dwgNoImg = getParent().getResources().getDrawable(idNoImage);

                    //Send the message to the handler
                    Message message = handler.obtainMessage(1, dwgNoImg);
                    handler.sendMessage(message);
                }
            }
            catch(Exception exp)
            {
                System.out.println("Exception in DownLoadImageInAThread : " + exp.getMessage());
            }
        }

        private Drawable getDrawableFromUrl(String imageUrl) throws IOException
        {
            try
            {
                image = DownloadDrawable(imageUrl, "src");
                //bmp = readBitmapFromNetwork(new URL(imageUrl));
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
            return image;
            //return bmp;
        }
    };
    t.start();
}

Drawable DownloadDrawable(String url, String src_name) throws java.io.IOException
{
    return Drawable.createFromStream(((java.io.InputStream) new java.net.URL(url).getContent()),  src_name);
}
</code></pre>
