Java 如何在Robolectric中为自定义视图配置RoboAttributeSet？

我正在用自己的属性测试（工作）复合控件（也称为自定义视图），并尝试使用

RoboAttributeSet

配置视图的属性。我还没有找到关于此功能的全面示例或文档，以及在使用构造函数时在属性创建中使用哪些值。我相信这很容易解决，但我还没找到

我已经复习了这些问题：，并且。。。而互联网的其他部分则毫无用处

注意：我的全名是：

com.colabug.local.food

注意：我使用的文件名不是Android教程中描述的

attrs.xml

CoverViewTest.java

public class CoverViewTest
{
    private Activity activity;
    private CoverView coverView;

    // Data
    private Delicacy data;

    // UI
    private RatingBar ratingBar;

    @Before
    public void setUp() throws Exception
    {
        activity = createActivity();
        coverView = getCoverView( activity, null );
        data = createDummyData( false, 2, false );
        coverView.setData( data );

        ratingBar = (RatingBar) coverView.findViewById( R.id.cover_view_rating_bar );
    }

    private CoverView getCoverView( Activity activity,
                                    RoboAttributeSet attributeSet )
    {
        CoverView view;
        view = new CoverView(Robolectric.application.getApplicationContext(), attributeSet);

//        view = (CoverView) LayoutInflater.from( activity )
//                                         .inflate( R.layout.cover_view,
//                                                   new CoverView( activity ),
//                                                   true );

        return view;
    }

    @Test
    public void showRatingBarAttribute_shouldShowRatingBar() throws Exception
    {
        ArrayList<Attribute> attributes = new ArrayList<Attribute>();
        attributes.add( new Attribute( "com.colabug.local.food:cover_attrs/showRatingBar", String.valueOf( true ), "com.colabug.local.food") );
        RoboAttributeSet attributeSet = new RoboAttributeSet( attributes,
                                                              Robolectric.application.getResources(),
                                                              CoverView.class );

        CoverView view = getCoverView( activity, attributeSet );
        view.setData( createDummyData( false, 2, false ) );
        assertViewIsVisible( view.findViewById( R.id.cover_view_rating_bar ) );
    }
}

public class CoverView extends RelativeLayout
{
    private BaseModel data;

    // UI
    private LayoutInflater inflater;
    private RatingBar      ratingBar;

    // Attributes
    private boolean showRatingBar = false;

    public CoverView( Context context )
    {
        super( context );
        inflater = LayoutInflater.from( context );
        initViews();
    }

    public CoverView( Context context, AttributeSet attrs )
    {
        super( context, attrs );

        getStyledAttributes( context, attrs );
        inflater = LayoutInflater.from( context );
        initViews();
    }

    public CoverView( Context context, AttributeSet attrs, int defStyle )
    {
        super( context, attrs, defStyle );

        getStyledAttributes( context, attrs );
        inflater = LayoutInflater.from( context );
        initViews();
    }

    public static CoverView inflate( ViewGroup parent, int layoutId )
    {
        return (CoverView) LayoutInflater.from( parent.getContext() )
                                         .inflate( layoutId, parent, false );
    }

    private void initViews()
    {
        inflater.inflate( R.layout.cover_view, this );
        ratingBar = (RatingBar) findViewById( R.id.cover_view_rating_bar );
    }

    private void getStyledAttributes( Context context, AttributeSet attrs )
    {
        TypedArray attributes = getAttributeArray( context, attrs );

        try
        {
            showRatingBar = attributes.getBoolean( R.styleable.CoverView_showRatingBar, false );
        }
        finally
        {
            attributes.recycle();
        }
    }

    private TypedArray getAttributeArray( Context context, AttributeSet attrs )
    {
        return context.getTheme().obtainStyledAttributes( attrs, R.styleable.CoverView, 0, 0 );
    }

    public void setData( BaseModel data )
    {
        this.data = data;

        configureRatingBar();

        redrawView();
    }

    private void redrawView()
    {
        invalidate();
        requestLayout();
    }

    private void configureRatingBar()
    {
        if ( showRatingBar )
        {
            ratingBar.setVisibility( VISIBLE );
        }
        else
        {
            ratingBar.setVisibility( GONE );
        }
    }

    public boolean hasRatingBar()
    {
        return showRatingBar;
    }

    public void setShowRatingBar( boolean showRatingBar )
    {
        this.showRatingBar = showRatingBar;
        redrawView();
    }
}

res/layout/cover\u view.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>
   <declare-styleable name="CoverView">
       <attr name="showRatingBar" format="boolean" />
   </declare-styleable>
</resources>

<merge
    xmlns:android="http://schemas.android.com/apk/res/android"
    style="@style/MatchWidth">

    <!--Location image-->
    <ImageView
        android:id="@+id/cover_view_image"
        android:adjustViewBounds="true"
        android:src="@drawable/philly"
        android:contentDescription="@string/LOCATION_CONTENT_DESC"
        style="@style/MatchWidth"/>

...    

        <!--Rating bar-->
        <RatingBar
            android:id="@+id/cover_view_rating_bar"
            style="@style/RatingBar"/>
</merge>

...    

尽管命名了文件

cover_attrs.xml

，但声明的资源类型仍然是

attr

，这似乎是Robolectric在抛出该异常（）时试图强制执行的内容

---

您可以尝试更改

属性中的属性吗？添加
调用
“com.colabug.local.food:attr/showRatingBar”
，看看它是否有效吗？
对于那些仍然想知道如何在版本3中进行配置的人：请查看Roboelectric的示例。我花了很长时间才找到这个

3.2怎么样？
<merge
    xmlns:android="http://schemas.android.com/apk/res/android"
    style="@style/MatchWidth">

    <!--Location image-->
    <ImageView
        android:id="@+id/cover_view_image"
        android:adjustViewBounds="true"
        android:src="@drawable/philly"
        android:contentDescription="@string/LOCATION_CONTENT_DESC"
        style="@style/MatchWidth"/>

...    

        <!--Rating bar-->
        <RatingBar
            android:id="@+id/cover_view_rating_bar"
            style="@style/RatingBar"/>
</merge>