Strange behaviour of images in RecyclerView

Question

I am using android.support.v7.widget.RecyclerView to show simple items containing text and in some cases also images. Basically I followed the tutorial from here https://dev

Answer 1

Based on @Lion789's answer. I'm using Google's Volley for image and json loading.

This allows us to retrieve the position on the view that's going to be recycled later.

@Override
public int getItemViewType(int position) {
    return position;
}

When making the request, set the position as the TAG

@Override
public void onBindViewHolder(final ItemHolder holder, int position) {
        ImageRequest thumbnailRequest = new ImageRequest(url,
                new Response.Listener() {
                    @Override
                    public void onResponse(Bitmap response) {                          
                        holder.itemThumbnail.setImageBitmap(response);
                    }
                },[...]);

        thumbnailRequest.setTag(String.valueOf(position)); //setting the TAG
        mQueue.addToRequestQueue(thumbnailRequest);
}

And when the view is being recycled we'll cancel the request, and remove the current image

@Override
public void onViewRecycled(ItemHolder holder) {
    super.onViewRecycled(holder);
    mQueue.cancelAll(String.valueOf(holder.getItemViewType()));
    holder.itemThumbnail.setImageDrawable(null);
}

Volley garanties that canceled requests won't be delivered.