android - Robolectric Resources$NotFoundException :drawable\abc_ic_ab_back_material. 来自可绘制资源 ID 的 xml

Question

当我尝试运行时:

Robolectric.setupActivity(MainActivity.class).getSupportFragmentManager()
                .beginTransaction().add(mapFragment, "" + NavigationCtrl.FRAG_MAP).commit();

Robolectric 抛出错误:

android.content.res.Resources$NotFoundException: File build\intermediates\res\merged\dev\drawable\abc_ic_ab_back_material.xml from drawable resource ID #0x7f020013
    at android.content.res.Resources.loadDrawable(Resources.java:2091)
    at org.robolectric.util.ReflectionHelpers.callInstanceMethod(ReflectionHelpers.java:195)
    at org.robolectric.internal.Shadow.directlyOn(Shadow.java:57)
    at org.robolectric.shadows.ShadowResources.loadDrawable(ShadowResources.java:225)
    at android.content.res.Resources.loadDrawable(Resources.java)
    at android.content.res.Resources.getDrawable(Resources.java:695)

Caused by: org.xmlpull.v1.XmlPullParserException: XML file build\intermediates\res\merged\dev\drawable\abc_ic_ab_back_material.xml line #-1 (sorry, not yet implemented): invalid drawable tag vector
    at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:897)
    at android.graphics.drawable.Drawable.createFromXml(Drawable.java:837)
    at android.content.res.Resources.loadDrawable(Resources.java:2087)

我使用 Robolectric 的其他测试运行正常，只有“setupActivity”测试(其中有几个)。

我知道我也可以使用 SupportFragmentTestUtil.startFragment(fragment) 开始我的 fragment ，但我需要传递“标签”变量

有什么想法吗？

Answer 1

说明

Material means that your sdk should be higher or at least 21, not 18.That's the reason of this error.

解决方案

将@Config(sdk = 18)更改为@Config(sdk = 21)或更高版本。

有效。