Java Code Examples for androidx.test.espresso.matcher.ViewMatchers#isAssignableFrom()

/**
 * Calls <code>setScrollPosition(position, positionOffset, true)</code> on the <code>TabLayout
 * </code>
 */
public static ViewAction setScrollPosition(final int position, final float positionOffset) {
  return new ViewAction() {

    @Override
    public Matcher<View> getConstraints() {
      return ViewMatchers.isAssignableFrom(TabLayout.class);
    }

    @Override
    public String getDescription() {
      return "setScrollPosition(" + position + ", " + positionOffset + ", true)";
    }

    @Override
    public void perform(UiController uiController, View view) {
      TabLayout tabs = (TabLayout) view;
      tabs.setScrollPosition(position, positionOffset, true);
      uiController.loopMainThreadUntilIdle();
    }
  };
}
 

/** Sets the transformation method. */
public static ViewAction setTransformationMethod(
    final TransformationMethod transformationMethod) {
  return new ViewAction() {

    @Override
    public Matcher<View> getConstraints() {
      return ViewMatchers.isAssignableFrom(TextInputLayout.class);
    }

    @Override
    public String getDescription() {
      return "Sets the transformation method";
    }

    @Override
    public void perform(UiController uiController, View view) {
      TextInputLayout item = (TextInputLayout) view;
      item.getEditText().setTransformationMethod(transformationMethod);
    }
  };
}
 

/** Clicks end or start icon. */
public static ViewAction clickIcon(final boolean isEndIcon) {
  return new ViewAction() {

    @Override
    public Matcher<View> getConstraints() {
      return ViewMatchers.isAssignableFrom(TextInputLayout.class);
    }

    @Override
    public String getDescription() {
      return "Clicks the end or start icon";
    }

    @Override
    public void perform(UiController uiController, View view) {
      TextInputLayout item = (TextInputLayout) view;
      // Reach in and find the icon view since we don't have a public API to get a reference to it
      CheckableImageButton iconView =
          item.findViewById(isEndIcon ? R.id.text_input_end_icon : R.id.text_input_start_icon);
      iconView.performClick();
    }
  };
}
 

/** Long clicks end or start icon. */
public static ViewAction longClickIcon(final boolean isEndIcon) {
  return new ViewAction() {

    @Override
    public Matcher<View> getConstraints() {
      return ViewMatchers.isAssignableFrom(TextInputLayout.class);
    }

    @Override
    public String getDescription() {
      return "Long clicks the end or start icon";
    }

    @Override
    public void perform(UiController uiController, View view) {
      TextInputLayout item = (TextInputLayout) view;
      // Reach in and find the icon view since we don't have a public API to get a reference to it
      CheckableImageButton iconView =
          item.findViewById(isEndIcon ? R.id.text_input_end_icon : R.id.text_input_start_icon);
      iconView.performLongClick();
    }
  };
}
 

/** Skips any animations on the layout. */
public static ViewAction skipAnimations() {
  return new ViewAction() {

    @Override
    public Matcher<View> getConstraints() {
      return ViewMatchers.isAssignableFrom(TextInputLayout.class);
    }

    @Override
    public String getDescription() {
      return "Skips any animations.";
    }

    @Override
    public void perform(UiController uiController, View view) {
      view.jumpDrawablesToCurrentState();
    }
  };
}
 

/** Sets prefix. */
public static ViewAction setPrefixText(final CharSequence prefixText) {
  return new ViewAction() {

    @Override
    public Matcher<View> getConstraints() {
      return ViewMatchers.isAssignableFrom(TextInputLayout.class);
    }

    @Override
    public String getDescription() {
      return "Sets prefix text.";
    }

    @Override
    public void perform(UiController uiController, View view) {
      TextInputLayout layout = (TextInputLayout) view;
      layout.setPrefixText(prefixText);
    }
  };
}
 

/** Sets suffix. */
public static ViewAction setSuffixText(final CharSequence suffixText) {
  return new ViewAction() {

    @Override
    public Matcher<View> getConstraints() {
      return ViewMatchers.isAssignableFrom(TextInputLayout.class);
    }

    @Override
    public String getDescription() {
      return "Sets suffix text.";
    }

    @Override
    public void perform(UiController uiController, View view) {
      TextInputLayout layout = (TextInputLayout) view;
      layout.setSuffixText(suffixText);
    }
  };
}
 

@Override
public Matcher<View> getConstraints() {
  return ViewMatchers.isAssignableFrom(ViewGroup.class);
}
 

@Override
public View getView() throws AmbiguousViewMatcherException, NoMatchingViewException {
  checkMainThread();
  final Predicate<View> matcherPredicate =
      new MatcherPredicateAdapter<View>(checkNotNull(viewMatcher));

  View root = rootViewProvider.get();
  Iterator<View> matchedViewIterator =
      Iterables.filter(breadthFirstViewTraversal(root), matcherPredicate).iterator();

  View matchedView = null;

  while (matchedViewIterator.hasNext()) {
    if (matchedView != null) {
      // Ambiguous!
      throw new AmbiguousViewMatcherException.Builder()
          .withViewMatcher(viewMatcher)
          .withRootView(root)
          .withView1(matchedView)
          .withView2(matchedViewIterator.next())
          .withOtherAmbiguousViews(Iterators.toArray(matchedViewIterator, View.class))
          .build();
    } else {
      matchedView = matchedViewIterator.next();
    }
  }
  if (null == matchedView) {
    final Predicate<View> adapterViewPredicate =
        new MatcherPredicateAdapter<View>(ViewMatchers.isAssignableFrom(AdapterView.class));
    List<View> adapterViews =
        Lists.newArrayList(
            Iterables.filter(breadthFirstViewTraversal(root), adapterViewPredicate).iterator());
    if (adapterViews.isEmpty()) {
      throw new NoMatchingViewException.Builder()
          .withViewMatcher(viewMatcher)
          .withRootView(root)
          .build();
    }

    String warning =
        String.format(
            Locale.ROOT,
            "\n"
                + "If the target view is not part of the view hierarchy, you may need to use"
                + " Espresso.onData to load it from one of the following AdapterViews:%s",
            Joiner.on("\n- ").join(adapterViews));
    throw new NoMatchingViewException.Builder()
        .withViewMatcher(viewMatcher)
        .withRootView(root)
        .withAdapterViews(adapterViews)
        .withAdapterViewWarning(EspressoOptional.of(warning))
        .build();
  } else {
    return matchedView;
  }
}
 

@Override
public Matcher<View> getConstraints() {
    return ViewMatchers.isAssignableFrom(MultiSlider.class);
}