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

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

  @override
  State<FullPage> createState() => _FullPageState();
}

class _FullPageState extends State<FullPage> {
  final ScrollController _scrollController = ScrollController();

  @override
  void initState() {
    super.initState();
  }

  @override
  void dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.orange[300],
      ),
      body: ScrollToTop(
        scrollController: _scrollController,
        child: buildListView(_scrollController),
      ),
    );
  }

  Widget buildListView(ScrollController scrollController) =>
      ListView.builder(
        controller: scrollController,
        physics: const BouncingScrollPhysics(),
        itemCount: 50,
        itemBuilder: (context, index) {
          return SizedBox(
            width: 20,
            child: Padding(
              padding: const EdgeInsets.all(8.0),
              child: Container(
                height: 60,
                decoration: BoxDecoration(
                  borderRadius: BorderRadius.circular(10.5),
                  color: Colors.red[100],
                ),
                child: Center(
                  child: Align(
                    alignment: Alignment.centerLeft,
                    child: Padding(
                      padding: const EdgeInsets.all(8.0),
                      child: Text("Index $index"),
                    ),
                  ),
                ),
              ),
            ),
          );
        },
      );
}