在Fragment的onActivityCreated方法中手动触发一次绑定。在绑定时，需要将LifecycleOwner设置为Fragment的viewLifecycleOwner。

代码示例：

public class MyFragment extends Fragment {
    private FragmentMyBinding binding;

    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_my, container, false);
        return binding.getRoot();
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        binding.setViewModel(viewModel);
        binding.setLifecycleOwner(this.getViewLifecycleOwner());
        binding.executePendingBindings();
    }
}