Barttje

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'dart:ui' as ui;

void main() {
  runApp(const MyApp());
}

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

Barttje

import 'package:flutter/material.dart';
import 'package:collection/collection.dart';
import 'package:flutter/rendering.dart';

void main() {
  runApp(const ExampleApp());
}

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

Barttje

import 'package:flutter/material.dart';
import 'dart:math' as math;

void main() {
  runApp(const ExampleApp());
}

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

Barttje

import 'package:flutter/material.dart';
import 'dart:math' as math;

void main() {
  runApp(const ExampleApp());
}

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

Barttje

import 'package:flutter/material.dart';

void main() {
  runApp(DragAndDropExample());
}

class DragAndDropExample extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(

Barttje

import 'package:flutter/material.dart';

void main() {
  runApp(MultipleCategorySelection());
}

class MultipleCategorySelection extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(

Barttje

import 'package:flutter/material.dart';

void main() {
  runApp(MultipleCategorySelection());
}

class MultipleCategorySelection extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(

Barttje

import 'package:flutter/material.dart';

void main() {
  runApp(MultipleCategorySelection());
}

class MultipleCategorySelection extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(

Barttje

import 'package:flutter/material.dart';

void main() {
  runApp(LineChartDemo());
}

class LineChartDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(

Barttje

import 'package:flutter/material.dart';

void main() {
  runApp(LineChartDemo());
}

class LineChartDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(