如何遵循ViewModel方法在RecyclerView中管理点击事件？

// ViewModel类
public class MyViewModel extends ViewModel {
    private MutableLiveData<Integer> selectedItem = new MutableLiveData<>();

    public LiveData<Integer> getSelectedItem() {
        return selectedItem;
    }

    public void onItemClick(int position) {
        selectedItem.setValue(position);
        // 处理点击事件的逻辑
    }
}

// RecyclerView的Adapter
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
    private List<Item> itemList;
    private OnItemClickListener listener;

    public interface OnItemClickListener {
        void onItemClick(int position);
    }

    public void setOnItemClickListener(OnItemClickListener listener) {
        this.listener = listener;
    }

    // ViewHolder类和其他必要的方法省略

    @Override
    public void onBindViewHolder(ViewHolder holder, final int position) {
        // 设置点击事件监听器
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (listener != null) {
                    listener.onItemClick(position);
                }
            }
        });
    }
}

// 在Activity或Fragment中使用ViewModel和RecyclerView
public class MyActivity extends AppCompatActivity {
    private MyViewModel viewModel;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // 初始化ViewModel
        viewModel = ViewModelProviders.of(this).get(MyViewModel.class);

        // 设置RecyclerView的Adapter和布局管理器
        RecyclerView recyclerView = findViewById(R.id.recyclerView);
        MyAdapter adapter = new MyAdapter();
        recyclerView.setAdapter(adapter);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));

        // 设置点击事件监听器
        adapter.setOnItemClickListener(new MyAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(int position) {
                viewModel.onItemClick(position);
            }
        });

        // 观察ViewModel中的LiveData对象，更新UI
        viewModel.getSelectedItem().observe(this, new Observer<Integer>() {
            @Override
            public void onChanged(Integer position) {
                // 根据position更新UI
            }
        });
    }
}