NetworkOnMainThread Exception in getView method while loading images to Gridview

Question

I need to fetch images from url's and Load them into gridview. I am getting network on Main thread exception in the getView method of my ImageAdapter class which extends Base Adapter. How can i solve this using a Separate thread or an Async Task.

public View getView(int position, View convertView, ViewGroup parent)   {           

    ImageView imageView;

    try {

            URL url = new URL(Product_ItemsURLs[position]);

            InputStream content = (InputStream)url.getContent();

            Drawable drawable = Drawable.createFromStream(content , "src"); 

            if (convertView == null)
            {
                imageView = new ImageView(mContext);
                imageView.setLayoutParams(new GridView.LayoutParams(380,380));
                imageView.setScaleType(ImageView.ScaleType.FIT_XY);
                imageView.setPadding(10, 10, 10, 10);
            }
            else
            {
                imageView = (ImageView) convertView;
            }

            imageView.setImageDrawable(drawable);

            return imageView;

        } catch (MalformedURLException e) {

            e.printStackTrace();
            return null;

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return null;
        }

}

Usually you get this error when you are performing some n/w related operation in main thread try to use Async task or use thread — Akshay, Oct 17 '12 at 10:07
I moved the code to an Async Task and Now i am getting array index out of bound exception. — SKK, Oct 17 '12 at 10:30
In which part of the code? We really need your new code to answer that (or really a new question since the original issue is now fixed, and question answered). — athor, Oct 17 '12 at 10:37

score 0 · Accepted Answer · edited Oct 17 '12 at 10:11

0

The line below is what is causing the issue. It's performing a network operation. From honeycomb onwards android doesn't allow network operations on the UI Thread.

Drawable drawable = Drawable.createFromStream(content , "src");

You need to use an Asynctask to download the drawable, and set the drawable to the view in your onPostExecute (which runs on the UI Thread).

edited Oct 17 '12 at 10:11

Akshay

2,506
4
34
55

answered Oct 17 '12 at 10:07

athor

6,848
2
34
37

NetworkOnMainThread Exception in getView method while loading images to Gridview

1 Answers1