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Added grade average calculator

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This commit is contained in:
Elias Müller 2023-05-29 21:05:50 +02:00
parent 3da32e72eb
commit a161378c72
2 changed files with 149 additions and 5 deletions
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142
lib/screen/pages/more/gradeAverages/gradeAverage.dart Normal file
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@ -0,0 +1,142 @@
import 'package:flutter/material.dart';
class GradeAverage extends StatefulWidget {
const GradeAverage({Key? key}) : super(key: key);
@override
State<GradeAverage> createState() => _GradeAverageState();
}
class _GradeAverageState extends State<GradeAverage> {
double average = 0;
bool gradeSystem = true;
List<int> grades = List.empty(growable: true);
String getGradeDisplay(int grade) {
if(gradeSystem) {
return "Note $grade";
} else {
return "$grade Punkt${grade > 1 ? "e" : ""}";
}
}
@override
Widget build(BuildContext context) {
if(grades.isNotEmpty) {
average = grades.reduce((a, b) => a + b) / grades.length;
} else {
average = 0;
}
return Scaffold(
appBar: AppBar(
title: const Text("Notendurschnittsrechner"),
actions: [
IconButton(onPressed: () {
showDialog(context: context, builder: (context) {
return AlertDialog(
title: const Text("Noten Zurücksetzen?"),
actions: [
TextButton(onPressed: () {
Navigator.of(context).pop();
}, child: const Text("Abbrechen")),
TextButton(onPressed: () {
grades.clear();
setState(() {});
Navigator.of(context).pop();
}, child: const Text("Zurücksetzen"))
],
);
});
}, icon: const Icon(Icons.delete_forever)),
PopupMenuButton<bool>(
enableFeedback: true,
initialValue: gradeSystem,
icon: const Icon(Icons.read_more),
itemBuilder: (context) => [true, false].map((e) => PopupMenuItem<bool>(
value: e,
enabled: e != gradeSystem,
child: Row(
children: [
Text(e ? "Notensystem" : "Punktesystem"),
],
),
)).toList(),
onSelected: (e) {
showDialog(context: context, builder: (context) {
return AlertDialog(
title: const Text("Notensystem wechseln"),
content: const Text("Beim wechsel des Notensystems werden alle Einträge zurückgesetzt."),
actions: [
TextButton(onPressed: () {
Navigator.of(context).pop();
}, child: const Text("Abbrechen")),
TextButton(onPressed: () {
setState(() {
grades.clear();
gradeSystem = e;
});
Navigator.of(context).pop();
}, child: const Text("Fortfahren")),
],
);
});
},
),
],
),
body: Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: [
const SizedBox(height: 30),
Text(average.toStringAsFixed(2), style: const TextStyle(fontSize: 30, fontWeight: FontWeight.bold)),
const SizedBox(height: 10),
const Divider(),
const SizedBox(height: 10),
Expanded(
child: ListView.builder(
itemBuilder: (context, index) {
var grade = gradeSystem ? index + 1 : 14 - index + 1;
bool isThis(int e) => e == grade;
return ListTile(
tileColor: grade.isEven ? Colors.transparent : Colors.transparent.withAlpha(50),
title: Center(
child: Row(
children: [
IconButton(
onPressed: () {
setState(() {
if(!grades.any(isThis)) return;
grades.removeAt(grades.indexWhere(isThis));
});
},
icon: const Icon(Icons.remove),
color: Theme.of(context).colorScheme.onSurface,
),
Text(getGradeDisplay(grade)),
IconButton(
onPressed: () {
setState(() {
grades.add(grade);
});
},
icon: const Icon(Icons.add),
color: Theme.of(context).colorScheme.onSurface,
),
],
),
),
trailing: Text("Anzahl: ${grades.where(isThis).length}"),
);
},
itemCount: gradeSystem ? 6 : 15,
),
),
],
),
);
}
}

12
lib/screen/pages/more/overhang.dart
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@ -1,11 +1,13 @@
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:marianum_mobile/screen/pages/more/countdown/countdown.dart';
import 'package:marianum_mobile/screen/pages/more/gradeAverages/gradeAverage.dart';
import 'package:marianum_mobile/screen/pages/more/roomplan/roomplan.dart';
import 'package:marianum_mobile/screen/settings/settings.dart';
import 'package:persistent_bottom_nav_bar/persistent_tab_view.dart';
import '../../../widget/ListItem.dart';
import 'debug/ThemeColors.dart';
import 'message/message.dart';
class Overhang extends StatelessWidget {
@ -21,12 +23,12 @@ class Overhang extends StatelessWidget {
],
),
body: ListView(
children: [
children: const [
ListItemNavigator(icon: Icons.newspaper, text: "Marianum Message", target: Message()),
ListItemNavigator(icon: Icons.room, text: "Raumplan", target: Roomplan()),
ListItemNavigator(icon: Icons.calendar_month, text: "Schulferien", target: Roomplan()),
ListItemNavigator(icon: Icons.calculate, text: "Notendurschnitts rechner", target: Roomplan()),
ListItemNavigator(icon: Icons.color_lens_outlined, text: "Farbtest", target: ColorPreviewPage())
ListItemNavigator(icon: Icons.calculate, text: "Notendurschnitts rechner", target: GradeAverage()),
if(!kReleaseMode) ListItemNavigator(icon: Icons.calendar_month, text: "Schulferien", target: Roomplan()),
if(!kReleaseMode) ListItemNavigator(icon: Icons.timer, text: "Countdown", target: Countdown()),
],
),
);