How to avoid flickering while updating gridview?

Question

I have a gridview. Im displaying images from the array of 10 images. After 1 minute i\'m adding 5 more images. To update the gridview i\'m using the following code.

<

Answer 1

The solution is to not reload your image when it did not change.

In your adapters getView() do:

// schedule rendering:
final String path = ... (get path here);
if (holder.lastImageUrl == null || !holder.lastImageUrl.equals(path)
                || holder.headerImageView.getDrawable() == null) {
    // refresh image
    imageLoader.displayImage(imageUri, imageAware);
} else {
    // do nothing, image did not change and does not need to be updated
}

on success (add a ImageLoadingListener) you set holder.lastImageUrl = path, on fail and cancel you set holder.lastImageUrl to null so that it will reload next time.