anchor.diff:  }
   
   ///趋势数据语言过滤
  -trendType(BuildContext context) {
  +List<TrendTypeModel> trendType(BuildContext context) {
     return [
       TrendTypeModel(GSYLocalizations.i18n(context).trend_all, null),
       TrendTypeModel("Java", "Java"),
  
positive.code: 
    scrollToTop() {
      if (scrollController.offset <= 0) {
        scrollController
            .animateTo(0,
                duration: Duration(milliseconds: 600), curve: Curves.linear)
            .then((_) {
          _showRefreshLoading();
        });
      } else {
        scrollController.animateTo(0,
            duration: Duration(milliseconds: 600), curve: Curves.linear);
      }
    }
  
  
negative.code: }
  
  ///趋势数据时间过滤
  List<TrendTypeModel> trendTime(BuildContext context) {
    return [
      new TrendTypeModel(GSYLocalizations.i18n(context).trend_day, "daily"),
      new TrendTypeModel(GSYLocalizations.i18n(context).trend_week, "weekly"),
  