1

I'm writing an app that shows images in a listview after downloading them from the internet. If an image has not downloaded when getView() is called, I have a placeholder image. The problem with this is if getView() is called before the image is downloaded, and the user does not scroll anymore, the placeholder image will stay there until the user scrolls away and comes back to call getView() on that position again.

I'm looking for a way to listen for the file being created and when it is, update that row. Is this possible? I've googled around, but cannot seem to find anything. I would imagine I would have to call an adapter.notifyDataSetChanged(), but I don't know how to listen for a file being created.

The Holo Dev
  • 1,016
  • 3
  • 12
  • 22
  • Take a look at "lazy loading images" http://stackoverflow.com/questions/541966/android-how-do-i-do-a-lazy-load-of-images-in-listview – dymmeh Apr 30 '12 at 16:57
  • The example here: https://github.com/thest1/LazyList has all of the code you need – dymmeh Apr 30 '12 at 16:58

0 Answers0