Android issue1

  @Override
        public long getItemId(int position) {
            String tag = "f" + position;
            if(fragmentManager.findFragmentByTag(tag) != null){
                Log.i("TEST", fragmentManager.findFragmentByTag(tag).toString() + " at position " + position);
                return fragmentManager.findFragmentByTag(tag).hashCode();
            }
            return super.getItemId(position);

        }

        @Override
        public boolean containsItem(long itemId) {
            Log.i("TEST", "Here is " + fragmentManager.getFragments().toString());
            Log.i("TEST", "Here is " + fragmentManager.getFragments().stream().anyMatch(fragment -> fragment.hashCode() == itemId));
            return fragmentManager.getFragments().stream().anyMatch(fragment -> fragment.hashCode() == itemId);
        }