android - 在 Recycler View 内单击 : Espresso

Question

我正在尝试单击 Recycler View 中的菜单项，并且我有以下代码。

onView(allOf(withId(R.id.section_list),isDisplayed())).perform(RecyclerViewActions.actionOnItem(hasDescendant(withText("ABC")), MyViewAction.clickChildViewWithId(R.id.payment_menu)));

MyViewAction 看起来像这样:

class MyViewAction {

public static ViewAction clickChildViewWithId(final int id) {
    return new ViewAction() {
        @Override
        public Matcher<View> getConstraints() {
            return null;
        }

        @Override
        public String getDescription() {
            return "Click on a child view with specified id.";
        }

        @Override
        public void perform(UiController uiController, View view) {
            View v = view.findViewById(id);
            v.performClick();
        }
    };
}

• 当我测试它时，我可以看到滚动发生到正确的位置，但点击失败并出现以下错误

android.support.test.espresso.PerformException: Error performing 'android.support.test.espresso.contrib.RecyclerViewActions$ActionOnItemAtPositionViewAction@2fd64b56' on view 'with id: com.em3Agri.operation.debug:id/section_list'. at android.support.test.espresso.PerformException$Builder.build(PerformException.java:83) at ......... Caused by: java.lang.IllegalStateException: No view holder at position: 38 at android.support.test.espresso.contrib.RecyclerViewActions$ActionOnItemAtPositionViewAction.perform(RecyclerViewActions.java:290) at android.support.test.espresso.ViewInteraction$1.run(ViewInteraction.java:144)

Answer 1

怎么样:

onView(withId(R.id.section_list))
  .perform(
    RecyclerViewActions.actionOnItem(
      hasDescendant(withId(R.id.payment_menu)), 
      ViewActions.click()
    )
  );