grouped_list 6.0.0

A Flutter ListView where the list items can be grouped into sections.

example/lib/example.dart

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

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

List _elements = [
  {'name': 'John', 'group': 'Team A'},
  {'name': 'Will', 'group': 'Team B'},
  {'name': 'Beth', 'group': 'Team A'},
  {'name': 'Miranda', 'group': 'Team B'},
  {'name': 'Mike', 'group': 'Team C'},
  {'name': 'Danny', 'group': 'Team C'},
];

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Grouped List View Example'),
        ),
        body: _createGroupedListView(),
      ),
    );
  }

  _createGroupedListView() {
    return GroupedListView<dynamic, String>(
      elements: _elements,
      groupBy: (element) => element['group'],
      groupComparator: (value1, value2) => value2.compareTo(value1),
      itemComparator: (item1, item2) => item1['name'].compareTo(item2['name']),
      order: GroupedListOrder.DESC,
      useStickyGroupSeparators: true,
      groupSeparatorBuilder: (String value) => Padding(
        padding: const EdgeInsets.all(8.0),
        child: Text(
          value,
          textAlign: TextAlign.center,
          style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
        ),
      ),
      itemBuilder: (c, element) {
        return Card(
          elevation: 8.0,
          margin: const EdgeInsets.symmetric(horizontal: 10.0, vertical: 6.0),
          child: SizedBox(
            child: ListTile(
              contentPadding:
                  const EdgeInsets.symmetric(horizontal: 20.0, vertical: 10.0),
              leading: const Icon(Icons.account_circle),
              title: Text(element['name']),
              trailing: const Icon(Icons.arrow_forward),
            ),
          ),
        );
      },
    );
  }
}