import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:pull_to_refresh/pull_to_refresh.dart';

//用于下拉刷新 头布局
class HeaderWidget extends StatelessWidget {
  const HeaderWidget({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return const WaterDropHeader(
      refresh: CupertinoActivityIndicator(),
      complete: CupertinoActivityIndicator(),
      idleIcon: CupertinoActivityIndicator(),
      // waterDropColor: null,
    );
  }
}
//用于上拉加载 底部布局
class FooterWidget extends StatelessWidget {
  const FooterWidget({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return CustomFooter(
      builder: (BuildContext context, LoadStatus? mode) {
        Widget body;
        if (mode == LoadStatus.idle) {
          body = const Text("上拉加载");
        } else if (mode == LoadStatus.loading) {
          body = const CupertinoActivityIndicator();
        } else if (mode == LoadStatus.failed) {
          body = const Text("加载失败");
        } else if (mode == LoadStatus.canLoading) {
          body = const Text("加载更多");
        } else if(mode == LoadStatus.noMore){
          body = const Text("没有更多数据");
        }else{
          // body = Text("没有更多数据");
          body = Text("");
        }
        return Container(
          height: 55.0,
          child: Center(child: body),
        );
      },
    );
  }
}