public static List<UserTrend> constructTrendList(Response res) throws WeiboException {
	   	 try {
	            JSONArray list = res.asJSONArray();
	            int size = list.length();
	            List<UserTrend> trends = new ArrayList<UserTrend>(size);
	            for (int i = 0; i < size; i++) {
	            	trends.add(new UserTrend(list.getJSONObject(i)));
	            }
	            return trends;
	        } catch (JSONException jsone) {
	            throw new WeiboException(jsone);
	        } catch (WeiboException te) {
	            throw te;
	        }

	   }