如何在销毁时解除viewModel与activity的绑定

public class MyActivity extends AppCompatActivity {
    private MyViewModel viewModel;

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

        viewModel = new ViewModelProvider(this).get(MyViewModel.class);
        // 将ViewModel与Activity进行绑定

        // 其他初始化操作
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        viewModel.onCleared();
        // 解除ViewModel与Activity的绑定
    }
}

public class MyViewModel extends ViewModel {
    private MutableLiveData<String> data;

    public MyViewModel() {
        data = new MutableLiveData<>();
        // 初始化LiveData对象
    }

    public LiveData<String> getData() {
        return data;
    }

    @Override
    protected void onCleared() {
        super.onCleared();
        // 取消订阅和异步任务
    }
}