Android:在自定义适配器中使用数据绑定时未赋值

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {

    private List<MyDataItem> items;

    public MyAdapter(List<MyDataItem> items) {
        this.items = items;
    }

    @NonNull
    @Override
    public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        LayoutInflater inflater = LayoutInflater.from(parent.getContext());
        ItemMyBinding binding = DataBindingUtil.inflate(inflater, R.layout.item_my, parent, false);
        return new MyViewHolder(binding);
    }

    @Override
    public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {
        MyDataItem item = items.get(position);
        holder.bind(item);
    }

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

    static class MyViewHolder extends RecyclerView.ViewHolder {
        private final ItemMyBinding binding;

        public MyViewHolder(ItemMyBinding binding) {
            super(binding.getRoot());
            this.binding = binding;
        }

        public void bind(MyDataItem item) {
            binding.setItem(item);
            binding.executePendingBindings();
        }
    }
}