TestUtilsActions.java 文件源码

/**
 * Clears and inflates the menu.
 *
 * @param menuResId The menu resource XML to be used.
 */
public static ViewAction reinflateMenu(final @MenuRes int menuResId) {
  return new ViewAction() {
    @Override
    public Matcher<View> getConstraints() {
      return isAssignableFrom(NavigationView.class);
    }

    @Override
    public String getDescription() {
      return "clear and inflate menu " + menuResId;
    }

    @Override
    public void perform(UiController uiController, View view) {
      uiController.loopMainThreadUntilIdle();
      final NavigationView nv = (NavigationView) view;
      nv.getMenu().clear();
      nv.inflateMenu(menuResId);
      uiController.loopMainThreadUntilIdle();
    }
  };
}