Implement Pull to Refresh in Flutter

In Flutter, you can implement pull-to-refresh by using the RefreshIndicator widget. The RefreshIndicator widget is a Material Design pull-to-refresh indicator that can be used to reload the contents of a ListView.

Here is an example of how you can implement pull-to-refresh in Flutter:

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: RefreshIndicator(
          onRefresh: () async {
            // Reload the data here
            return null;
          },
          child: ListView(
            children: [
              // Your list items go here
            ],
          ),
        ),
      ),
    );
  }
}

In this example, the RefreshIndicator widget is used to wrap a ListView. When the user pulls down on the ListView, the RefreshIndicator will appear and animate, indicating that the contents of the ListView are being reloaded. The onRefresh callback is called to reload the data, and you can implement this callback to reload the contents of the ListView.