我想在RecyclerView上实时更改数据

// 数据模型
public class Item {
    private String text;
    // 构造函数、getter和setter...
}

// 适配器
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
    private List<Item> items;

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

    @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());
    }

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

    public static class ViewHolder extends RecyclerView.ViewHolder {
        public TextView textView;
        public ViewHolder(View v) {
            super(v);
            textView = v.findViewById(R.id.textView);
        }
    }

    // 更新数据的方法
    public void updateData(List<Item> newItems) {
        this.items.clear();
        this.items.addAll(newItems);
        notifyDataSetChanged(); // 全局更新
        // 或者使用局部更新：notifyItemChanged(position);
    }
}

// 在Activity或Fragment中
public class MyActivity extends AppCompatActivity {
    private RecyclerView recyclerView;
    private MyAdapter adapter;
    private List<Item> items;

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

        recyclerView = findViewById(R.id.recyclerView);
        items = new ArrayList<>();
        adapter = new MyAdapter(items);
        recyclerView.setAdapter(adapter);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));

        // 假设有一个方法可以从服务器获取最新数据
        fetchLatestData();
    }

    private void fetchLatestData() {
        // 模拟从服务器获取数据
        List<Item> newItems = ...; // 获取新数据
        adapter.updateData(newItems); // 更新RecyclerView的数据
    }
}