以下是一个示例代码，展示如何使用RecyclerView来实现重复显示旧数据的功能：

public class MainActivity extends AppCompatActivity {
    private RecyclerView recyclerView;
    private CustomAdapter adapter;
    private List data;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        data = new ArrayList<>();
        for (int i = 1; i <= 10; i++) {
            data.add("Item " + i);
        }

        recyclerView = findViewById(R.id.recycler_view);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        adapter = new CustomAdapter(data);
        recyclerView.setAdapter(adapter);

        // 监听RecyclerView的滚动事件
        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
            @Override
            public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);
                // 如果滚动到了列表的最后一个位置
                if (!recyclerView.canScrollVertically(1)) {
                    // 将旧数据添加到列表末尾
                    for (int i = 1; i <= 10; i++) {
                        data.add("Item " + (data.size() + i));
                    }
                    // 更新适配器
                    adapter.notifyDataSetChanged();
                }
            }
        });

    }

    private class CustomAdapter extends RecyclerView.Adapter {
        private List data;

        public CustomAdapter(List data) {
            this.data = data;
        }

        @NonNull
        @Override
        public ViewHolder onCreateViewHolder(@NonNull 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(@NonNull ViewHolder holder, int position) {
            holder.textView.setText(data.get(position));
        }

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

        public class ViewHolder extends RecyclerView.ViewHolder {
            TextView textView;

            public ViewHolder(@NonNull View itemView) {
                super(itemView);
                textView = itemView.findViewById(R.id.text_view);
            }
        }
    }
}

上述代码中，我们使用RecyclerView来显示数据，并且在滚动到列表末尾时，将旧数据添加到列表的末尾，然后通过调用适配器的notifyDataSetChanged()方法来更新列表的显示。这样就实现了重复显示旧数据的功能。