在android中滚动时，高亮显示的项目在重新查看时会丢失

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
    private List<Item> items;
    private SparseBooleanArray selectedItems;

    public MyAdapter(List<Item> items) {
        this.items = items;
        this.selectedItems = new SparseBooleanArray();
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_layout, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        Item item = items.get(position);
        holder.textView.setText(item.getText());

        // 恢复高亮状态
        holder.itemView.setSelected(selectedItems.get(position, false));
    }

    @Override
    public int getItemCount() {
        return items.size();
    }

    public void toggleSelection(int position) {
        if (selectedItems.get(position, false)) {
            selectedItems.delete(position);
        } else {
            selectedItems.put(position, true);
        }
        notifyItemChanged(position);
    }

    static class ViewHolder extends RecyclerView.ViewHolder {
        TextView textView;

        ViewHolder(View itemView) {
            super(itemView);
            textView = itemView.findViewById(R.id.textView);
            itemView.setOnClickListener(v -> {
                // 切换高亮状态
                int adapterPosition = getAdapterPosition();
                if (adapterPosition != RecyclerView.NO_POSITION) {
                    ((MyAdapter) itemView.getTag()).toggleSelection(adapterPosition);
                }
            });
        }
    }
}