todotxt_reminder/lib/table.dart

import 'package:flutter/material.dart';
import 'package:nextcloud_reminder/repeating_task.dart';

class ScrollTable extends StatefulWidget {
  ScrollTable({super.key, required this.title});

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;
  final _ScrollTableState _internalState = _ScrollTableState();

  @override
  State<ScrollTable> createState() => _internalState;


  void addTask(RepeatingTask task) {
    _internalState.addTask(task);
  }

}

class _ScrollTableState extends State<ScrollTable> {
  final List<RepeatingTask> _content = [];

  addTask(RepeatingTask task) {
    setState(() {
      _content.add(task);
    });
  }

  List<Widget> _buildTitles() {
    return List<Widget>.from(_content.map((RepeatingTask t) =>
        Container(
          alignment: Alignment.center,
          width: 120.0,
          height: 60.0,
          color: Colors.white,
          margin: const EdgeInsets.all(4.0),
          child: Text(t.task.title, style: Theme
              .of(context)
              .textTheme
              .labelMedium),
        )));
  }

  @override
  Widget build(BuildContext context) {
    return SingleChildScrollView(
        child: Row(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: <Widget>[
            Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: _buildTitles(),
            ),
            Flexible(
              child: SingleChildScrollView(
                scrollDirection: Axis.horizontal,
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: _content,
                ),
              ),
            )
          ],
        )
    );
  }
}