Dart code to create TimeTable in a flutter app.

TimeTable.dart

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  Color kCol1 = Color(0xFF33658A);
  Color kCol2 = Color(0xFFA799B7);
  Color kCol3 = Color(0xFF979B8D);
  Color kCol4 = Color(0xFF8FC0A9);
  Color kCol5 = Color(0xFF68B0AB);
  Color kCol6 = Color(0xFF8DA9C4);
  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Scaffold(
        body: Center(
          child: Table(
            children: <TableRow>[
              TableRow(children: <Widget>[
                DayTile(
                  color: kCol1,
                  text: 'Mon',
                ),
                DayTile(
                  color: kCol2,
                  text: 'Tue',
                ),
                DayTile(
                  color: kCol3,
                  text: 'Wed',
                ),
                DayTile(
                  color: kCol4,
                  text: 'Thur',
                ),
                DayTile(
                  color: kCol5,
                  text: 'Fri',
                ),
                DayTile(
                  color: kCol6,
                  text: 'Sat',
                ),
                DayTile(
                  color: Colors.deepOrangeAccent,
                  text: 'Sun',
                ),
              ]),
            ],
          ),
        ),
      ),
    );
  }
}

class DayTile extends StatelessWidget {
  final Color color;
  final String text;
  DayTile({this.color = Colors.deepOrangeAccent, this.text = ' '});
  @override
  Widget build(BuildContext context) {
    return FittedBox(
      fit: BoxFit.contain,
      child: Container(
        margin: EdgeInsets.all(2),
        color: color,
        width: 50.0,
        height: 50.0,
        child: Center(
          child: Text(
            text,
            textAlign: TextAlign.center,
            style: TextStyle(
              color: Colors.white,
              fontSize: 12.0,
            ),
          ),
        ),
      ),
    );
  }
}