gopeed/ui/flutter/lib/widget/check_list_view.dart

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

class CheckListView extends StatefulWidget {
  final List<String> items;
  final List<String> checked;
  final void Function(List<String> value) onChanged;

  const CheckListView({
    Key? key,
    required this.items,
    required this.checked,
    required this.onChanged,
  }) : super(key: key);

  @override
  State<CheckListView> createState() => _CheckListView();
}

class _CheckListView extends State<CheckListView> {
  bool get _allChecked => _checked.length == _items.length;

  List<String> get _checked => widget.checked;

  List<String> get _items => widget.items;

  @override
  Widget build(BuildContext context) {
    return Container(
        margin: const EdgeInsets.only(top: 10),
        decoration: BoxDecoration(
            border: Border.all(color: Colors.grey, width: 1),
            borderRadius: BorderRadius.circular(5)),
        child: Column(
          children: [
            CheckboxListTile(
              value: _allChecked,
              onChanged: (value) {
                setState(() {
                  _checked.clear();
                  if (value!) {
                    _checked.addAll(_items);
                  }
                  widget.onChanged(_checked);
                });
              },
              title: Text('selectAll'.tr),
            ),
            Expanded(
              child: ListView.builder(
                  itemCount: _items.length,
                  itemBuilder: (context, index) {
                    var item = _items[index];
                    return CheckboxListTile(
                      value: _checked.contains(item),
                      onChanged: (value) {
                        setState(() {
                          _checked.contains(item)
                              ? _checked.remove(item)
                              : _checked.add(item);
                          widget.onChanged(_checked);
                        });
                      },
                      title: Text(item),
                    );
                  }),
            ),
          ],
        ));
  }
}