如何在recyclerview的所有项目中显示图标？

Question

I am trying to visible icons on all the items list of the recyclerview, what I want is that by pressing any on of the items, icons will be visible to all the list of the items.

help me to find out the solution.

here is my code

onBindViewholder

 imageList.get(position).setDeleteImage(holder.items_image);
    holder.items_image.setVisibility(View.GONE);
    holder.wpImages.setOnLongClickListener(new View.OnLongClickListener() {
        int i;
        @Override
        public boolean onLongClick(View view) {
            for (i = 0; i<=imageList.size();i++){
                if (imageList.get(i).getDeleteImage().getVisibility() == View.VISIBLE) {
                    imageList.get(i).getDeleteImage().setVisibility(View.GONE);
                }else {
                    imageList.get(i).getDeleteImage().setVisibility(View.VISIBLE);
                }

            }
            return false;
        }
    });

Answer 1

Could you try to add notifyDataSetChanged() after you update UI like this:

public boolean onLongClick(View view) {
   for (i = 0; i<=imageList.size();i++){
      if (imageList.get(i).getDeleteImage().getVisibility() == View.VISIBLE) {
           imageList.get(i).getDeleteImage().setVisibility(View.GONE);
      }else {
           imageList.get(i).getDeleteImage().setVisibility(View.VISIBLE);
      }
   }
   notifyDataSetChanged()
   return false;
}