1.导入本地就不废话了
2.使用地方 import 'package:pull_to_refresh/pull_to_refresh.dart';
3.具体使用，直接贴代码:

代码实例

class MyhelpVC extends StatefulWidget {
  const MyhelpVC({Key? key}) : super(key: key);

  @override
  State<MyhelpVC> createState() => _MyhelpVCState();
}

class _MyhelpVCState extends State<MyhelpVC> {

  RefreshController _refreshController =
  RefreshController(initialRefresh: false);

  void _onRefresh() async{
    // monitor network fetch
    await Future.delayed(Duration(milliseconds: 1000));

    _refreshController.refreshCompleted();
    _refreshController.loadComplete();
  }

  void _onLoading() async{
    // monitor network fetch
    await Future.delayed(Duration(milliseconds: 1000));

    if(hasmoreData){
      _refreshController.loadComplete();
    }else{
      _refreshController.loadNoData();
    }

  }


  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(

        iconTheme: IconThemeData(
          color: Colors.black, //修改颜色
        ),
        backgroundColor: Colors.white,
        title: Text("我的救援",style: TextStyle(color: Colors.black),),
        elevation: 0,
      ),
      body:

      SmartRefresher(
          enablePullDown: true,
          enablePullUp: true,
       
          header: ClassicHeader(//无特殊要求就可以用这个换下文案就行了
            height: 45.0,
            releaseText: '松开刷新',
            refreshingText: '刷新中',
            completeText: '刷新完成',
            idleText: '下拉刷新',
          ),
          footer:ClassicFooter(//无特殊要求就可以用这个换下文案就行了
            loadStyle:  LoadStyle.ShowWhenLoading,
            completeDuration: Duration(microseconds: 50),
            canLoadingText: '松开刷新',
            noDataText: '没有更多数据啦',
            loadingText:'刷新中',
            idleText: '上拉加载',
          ),
          controller: _refreshController,
          onRefresh: _onRefresh,
          onLoading: _onLoading,
          child:ListView.builder(
            itemBuilder: (BuildContext ctx,int index){
              return Text('text');
            },

            itemCount: 10,
     
          ),
      )
    );
  }
}
}