Liquid-Pull-To-Refresh

LiquidPullToRefresh

import 'package:flutter/material.dart';
import 'package:liquid_pull_to_refresh/liquid_pull_to_refresh.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  final GlobalKey<LiquidPullToRefreshState> _refreshIndicatorKey =
      GlobalKey<LiquidPullToRefreshState>();

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: Scaffold(
        body: LiquidPullToRefresh(
          key: _refreshIndicatorKey,
          onRefresh: () async {
            await onRefresh();
          },
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              Container(
                height: 112,
                color: Colors.amberAccent,
                padding: EdgeInsets.fromLTRB(24, 12, 24, 12),
                child: Align(
                  alignment: Alignment.center,
                  child: Text("Container Text"),
                ),
              ),
              Expanded(
                  child: ListView.builder(
                      physics: AlwaysScrollableScrollPhysics(),
                      shrinkWrap: true,
                      itemCount: 25,
                      padding: EdgeInsets.only(top: 8, bottom: 32),
                      itemBuilder: (BuildContext context, int index) {
                        return InkWell(
                          onTap: () {},
                          child: Container(
                            padding: EdgeInsets.fromLTRB(24, 12, 24, 12),
                            child: Text("ListView.Builder Text"),
                          ),
                        );
                      }))
            ],
          ),
        ),
      ),
    );
  }

  onRefresh() async {
    await Future.delayed(const Duration(seconds: 2), () => "2");
  }
}