Android - how to find multiple views with common attribute

Question

I have a layout with multiple ImageViews, some of those images need to have the same onClickListener. I would like my code to be flexible and to be able to get

Answer 1

This is a modification of Shlomi Schwartz's answer above. All credit to them. I didn't like how the recursion looked, and needed to be able to regex match a string tag name.

  /**
   * Find all views with (string) tags matching the given pattern.
   *
   */
  protected static Collection findViewsByTag(View root, String tagPattern) {
    List views = new ArrayList<>();

    final Object tagObj = root.getTag();
    if (tagObj instanceof String) {
      String tagString = (String) tagObj;
      if (tagString.matches(tagPattern)) {
        views.add(root);
      }
    }

    if (root instanceof ViewGroup) {
      ViewGroup vg = (ViewGroup) root;
      for (int i = 0; i < vg.getChildCount(); i++) {
        views.addAll(findViewsByTag(vg.getChildAt(i), tagPattern));
      }
    }

    return views;
  }

For example:

Collection itemNameViews = findViewsByTag(v, "^item_name_[0-9]+$");