@Override
  public void onClick(View v) {
    Intent viewArticle = new Intent();
    viewArticle.setClass(this, ArticleViewActivity.class);
    RssArticle article = (RssArticle) v.getTag();
    viewArticle.putExtra("RUBRIC_ID", article.getRubricId());
    viewArticle.putExtra("ID", article.getId());

    startActivity(viewArticle);
  }
    @Override
    public View getView(int position, View convertView, final ViewGroup parent) {
      final Item item = getItem(position);

      final View view;
      if (convertView != null && item.getClass().equals(convertView.getTag())) {
        view = convertView;
      } else {
        view =
            getLayoutInflater()
                .inflate(
                    item instanceof SectionItem
                        ? R.layout.catalog_manager_section_head
                        : R.layout.catalog_manager_item,
                    null);
        view.setTag(item.getClass());
      }

      if (item instanceof SectionItem) {
        ((TextView) view.findViewById(R.id.catalog_manager_section_head_title))
            .setText(((SectionItem) item).Title);
      } else /* if (item instanceof CatalogItem) */ {
        final CatalogItem catalogItem = (CatalogItem) item;

        if (myCoverManager == null) {
          view.measure(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
          final int coverHeight = view.getMeasuredHeight();
          myCoverManager =
              new CoverManager(CatalogManagerActivity.this, coverHeight * 15 / 22, coverHeight);
          view.requestLayout();
        }

        final INetworkLink link = catalogItem.Tree.getLink();
        ((TextView) view.findViewById(R.id.catalog_manager_item_title)).setText(link.getTitle());
        ((TextView) view.findViewById(R.id.catalog_manager_item_subtitle))
            .setText(link.getSummary());

        final ImageView coverView = (ImageView) view.findViewById(R.id.catalog_manager_item_icon);
        if (!myCoverManager.trySetCoverImage(coverView, catalogItem.Tree)) {
          coverView.setImageResource(R.drawable.ic_list_library_books);
        }

        final CheckBox checkBox = (CheckBox) view.findViewById(R.id.catalog_manager_item_checkbox);
        checkBox.setChecked(catalogItem.IsChecked);
        checkBox.setOnClickListener(
            new View.OnClickListener() {
              public void onClick(View v) {
                catalogItem.IsChecked = checkBox.isChecked();
                setResultIds(catalogItem, 0);
              }
            });
      }
      return view;
    }
  private void refreshImages() {
    Bitmap thumbnailBitmap;
    RssArticle article;
    for (View articleView : listArticlesViews) {
      ImageView thumbnailImageView = (ImageView) articleView.findViewById(R.id.article_image);
      article = (RssArticle) articleView.getTag();

      Boolean tag = (Boolean) thumbnailImageView.getTag(R.bool.image_empty);
      if (tag != null && tag == true) {
        thumbnailBitmap = ThumbnailCache.getInstance().getBitmap(article.getEnclosure());
        if (thumbnailBitmap != null) {
          thumbnailImageView.setImageBitmap(thumbnailBitmap);
        } else {
          ThumbnailCache.getInstance().load(thumbnailImageView, article.getEnclosure());
        }
      }
    }
  }