android - 当子包中包含 View 布局数据变量类型时，Android Studio 3.2.1中生成的ViewDataBinding类发生错误

我的viewmodels包含在“viewmodels”包中。当在我的片段布局xml文件中将其中一个设置为数据变量类型时，生成的viewdatabinding类会尝试将包作为文件导入。
例如：

import com.xyz.myapp.ViewModels;

而不是：

import com.xyz.myapp.ViewModels.*;

然后它继续将viewmodel引用为ViewModels.MyFragmentViewModel，从而导致进一步的错误。我发现解决方法是将所有viewmodel文件放在com.xyz.myapp目录中。做这个的时候一切都很好。
这和被问到的一样，我没有足够的声誉来评论。我遗漏了什么吗？我有什么选择吗？或者这只是个虫子？
testfragment.java测试片段

public class TestFragment extends Fragment {
    @Inject
    MyViewModelFactory viewModelFactory;

    private MyFragmentViewModel vm;

    public TestFragment() {
        // Required empty public constructor
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        vm = ViewModelProviders.of(this, viewModelFactory).get(MyFragmentViewModel.class);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        FragmentTestBinding binding = DataBindingUtil.inflate(inflater, R.layout.fragment_test, container, false);
        View view = binding.getRoot();
        binding.setVm(vm);
        return view;
    }

    @Override
    public void onAttach(Context context) {
        AndroidSupportInjection.inject(this);
        super.onAttach(context);
    }

    @Override
    public void onDetach() {
        super.onDetach();
    }
}

片段测试.xml

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">
    <data>
        <variable
            name="vm"
            type="com.xyz.myapp.ViewModels.MyFragmentViewModel"/>
    </data>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">


        <EditText
            android:id="@+id/editText"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:ems="10"
            android:inputType="textPersonName"
            android:text="@{vm.TEMP}" />
    </LinearLayout>
</layout>

myFragmentViewModel.java

public class MyFragmentViewModel extends ViewModel {
    public MyFragmentViewModel (){}
    public String TEMP = "TEST STRING";
}

fragmentTestBinding.java
这是生成的类。注释错误行。4误差

import com.xyz.myapp.ViewModels; //Error

public abstract class FragmentTestBinding extends ViewDataBinding {
  @NonNull
  public final CheckBox checkBox;

  @NonNull
  public final EditText editText;

  @Bindable
  protected ViewModels.ProfileViewModel mVm; //Error

  protected FragmentTestBinding(DataBindingComponent _bindingComponent, View _root,
      int _localFieldCount, CheckBox checkBox, EditText editText) {
    super(_bindingComponent, _root, _localFieldCount);
    this.checkBox = checkBox;
    this.editText = editText;
  }

  public abstract void setVm(@Nullable ViewModels.ProfileViewModel vm); //Error

  @Nullable
  public ViewModels.ProfileViewModel getVm() { //Error
    return mVm;
  }

  @NonNull
  public static FragmentTestBinding inflate(@NonNull LayoutInflater inflater,
      @Nullable ViewGroup root, boolean attachToRoot) {
    return inflate(inflater, root, attachToRoot, DataBindingUtil.getDefaultComponent());
  }

  @NonNull
  public static FragmentTestBinding inflate(@NonNull LayoutInflater inflater,
      @Nullable ViewGroup root, boolean attachToRoot, @Nullable DataBindingComponent component) {
    return DataBindingUtil.<FragmentTestBinding>inflate(inflater, com.camapps.linkshare.R.layout.fragment_test, root, attachToRoot, component);
  }

  @NonNull
  public static FragmentTestBinding inflate(@NonNull LayoutInflater inflater) {
    return inflate(inflater, DataBindingUtil.getDefaultComponent());
  }

  @NonNull
  public static FragmentTestBinding inflate(@NonNull LayoutInflater inflater,
      @Nullable DataBindingComponent component) {
    return DataBindingUtil.<FragmentTestBinding>inflate(inflater, com.camapps.linkshare.R.layout.fragment_test, null, false, component);
  }

  public static FragmentTestBinding bind(@NonNull View view) {
    return bind(view, DataBindingUtil.getDefaultComponent());
  }

  public static FragmentTestBinding bind(@NonNull View view,
      @Nullable DataBindingComponent component) {
    return (FragmentTestBinding)bind(component, view, com.camapps.linkshare.R.layout.fragment_test);
  }
}

编译器输出

Java compiler: (4 errors)
C:/Users/user/AndroidStudioProjects/myapp
    app/build/generated/data_binding_base_class_source_out/debug/dataBindingGenBaseClassesDebug/out
        com/xyz/myapp/databinding/FragmentTestBinding.java
            error: cannot find symbol class ViewModels
            error: package ViewModels does not exist
            error: package ViewModels does not exist
            error: package ViewModels does not exist

最佳答案

这是一个有趣的问题，表明需要遵循惯例。如Android - Package Name convention所述，
Android遵循正常的Java包约定
甲骨文
包名称以小写字母书写，以避免与类或接口的名称冲突。
现在，Android数据绑定库或另一个依赖库试图创建干净的代码，并认为类名为ViewModels.ProfileViewModel，遵循并期望通用的Java命名约定。
要解决您的问题，请开始遵循给定的约定，并将包重命名为viewmodels。