Gallery ImageAdapter convertView is always null

Question

I am using a Gallery with an ImageAdapter to load it with ImageViews that pull images out of my resources. My problem is that the convertView that gets passed to the getView() m

Answer 1

I do not have experience with Gallery widget, but I'am using a lot ListView with images. According to your problem, and link to Google issue, they still haven't fix this problem.

So, there is solutio with nice library (and examples within it), which solve cache/ajax problems, and much more.

Link to library

or, more concrete, link to image examples

If you download their examples, you will find how they implemented gallery with Gallery widget, using their AQuery utility class in

com.androidquery.test.image.ImageLoadingGalleryActivity class.

Snippet from code:

    final List entries;// here only to show what enteries are...

    listAq = new AQuery(this); //define as Action class member, here only to show what it is

    ArrayAdapter aa = new ArrayAdapter(this, R.layout.gallery_item, entries){

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

            if(convertView == null){
                convertView = getLayoutInflater().inflate(R.layout.gallery_item, parent, false);
            }

            Photo photo = getItem(position);

            AQuery aq = listAq.recycle(convertView);

            aq.id(R.id.name).text(photo.title);

            String tbUrl = photo.tb;

            if(!aq.shouldDelay(position, convertView, parent, tbUrl)){
                aq.id(R.id.tb).image(tbUrl);
                aq.id(R.id.text).text(photo.title).gone();
            }else{
                aq.id(R.id.tb).clear();
                aq.id(R.id.text).text(photo.title).visible();
            }


            return convertView;

        }


    };

    aq.id(R.id.gallery).adapter(aa);

Where Photo is just POJO object (fetched from remote):

class Photo {
    String tb;
    String url;
    String title;
    String author;
}

R.id.gallery refers to

And R.layout.gallery_item refers to:

Hope you'll find this library useful in solving your problem.