在viewModel中处理片段流的正确方法

public class MyViewModel extends ViewModel {
    private MutableLiveData<FragmentData> fragmentLiveData;

    public LiveData<FragmentData> getFragmentData() {
        if (fragmentLiveData == null) {
            fragmentLiveData = new MutableLiveData<>();
            loadFragmentData(); // 异步获取片段流数据
        }
        return fragmentLiveData;
    }

    private void loadFragmentData() {
        // 异步任务获取片段流数据
        // 将数据设置到fragmentLiveData中
        fragmentLiveData.setValue(fragmentData);
    }
}

public class MyFragment extends Fragment {
    private MyViewModel viewModel;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        viewModel = ViewModelProviders.of(this).get(MyViewModel.class);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        // 创建视图并进行其他初始化操作

        // 观察LiveData对象
        viewModel.getFragmentData().observe(this, new Observer<FragmentData>() {
            @Override
            public void onChanged(FragmentData data) {
                // 处理数据变化，更新UI或执行其他操作
            }
        });

        return view;
    }
}