在活动中显示/隐藏RecyclerView适配器中的按钮

// 适配器中的ViewHolder类
public class MyViewHolder extends RecyclerView.ViewHolder {
    Button button;

    public MyViewHolder(View itemView) {
        super(itemView);
        button = itemView.findViewById(R.id.button);
    }
}

// 适配器类
public class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {
    private List<Item> itemList;

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

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

    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {
        Item item = itemList.get(position);
        holder.button.setVisibility(item.isVisible() ? View.VISIBLE : View.GONE);
    }

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

// 活动中的代码
public class MainActivity extends AppCompatActivity {
    private RecyclerView recyclerView;
    private MyAdapter adapter;
    private List<Item> itemList;

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

        recyclerView = findViewById(R.id.recyclerView);
        itemList = new ArrayList<>();
        // 初始化itemList数据

        adapter = new MyAdapter(itemList);
        recyclerView.setAdapter(adapter);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
    }

    // 显示或隐藏按钮的方法
    private void showOrHideButton(int position, boolean isVisible) {
        Item item = itemList.get(position);
        item.setVisible(isVisible);
        adapter.notifyItemChanged(position);
    }
}