// 存储TimeLine到SharedPreferences中
  private void saveTimeline() {
    S.put(getActivity(), "timeline_list", "");
    int count = listPostAdapter.getCount() > 10 ? 10 : listPostAdapter.getCount(); // 只保存前10条
    String targetString = "";
    String seperator = S.regularEx;
    for (int i = 0; i < count; i++) {
      PostBean bean = (PostBean) listPostAdapter.getItem(i);

      // 1id 2链接 3标题 4作者 5时间 6图片地址 7头图URL 8注释 9类型
      targetString =
          targetString
              + seperator
              + String.valueOf(bean.getId())
              + seperator
              + bean.getItemURL()
              + seperator
              + bean.getTitle()
              + seperator
              + bean.getAuthor()
              + seperator
              + bean.getCreatedAt()
              + seperator
              + bean.getImageUrl()
              + seperator
              + bean.getHeaderImageUrl()
              + seperator
              + bean.getDescription()
              + seperator
              + bean.getContentType();
    }
    S.put(getActivity(), "timeline_list", targetString);
  }