如何 UI 测试偏好片段

Question

我正在设置 UI 测试并不断收到 androidx.test.espresso.NoMatchingViewException: No views in hierarchy found matching:error 消息

我的 xml 文件看起来像这样，有多个类别

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
                  android:key="@string/key_preference_screen"
                  android:title="@string/sometitlename">
    <PreferenceCategory
        android:layout="@layout/category_layout"
        android:key="@string/key_pref_">
        <Preference
            android:key="@string/key"
            android:title="@string/pref_title"/>
    </PreferenceCategory>
</PreferenceScreen>

我尝试了各种变化

onData(allOf(`is`(instanceOf(Preference::class.java)),
                 withKey(R.string.key),             
                 withTitle(R.string.pref_title)))
                .onChildView(withText(pref_title))
                .check(matches(isCompletelyDisplayed()))```

Answer 1

Preference Matcher 在内部使用 Recyclerview。引用自 here

onView(withId(androidx.preference.R.id.recycler_view))
    .perform(
      RecyclerViewActions.actionOnItemAtPosition<RecyclerView.ViewHolder>(
        1,
        click()
      ))