113 lines
3.2 KiB
Dart
113 lines
3.2 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:ju_learn/main.dart';
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class QuizPage extends StatefulWidget {
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Vault v;
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QuizPage(this.v, {super.key});
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@override
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_QuizPageState createState() => _QuizPageState(v);
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}
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class _QuizPageState extends State<QuizPage> {
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int _currentQuestionIndex = 0;
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int ask_state = -1;
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int _score = 0;
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Vault v;
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_QuizPageState(this.v);
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void _checkAnswer(int selectedIndex) {
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//if (selectedIndex == v.questions[_currentQuestionIndex].correct) {
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// setState(() {
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// _score++;
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// });
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//}
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setState(() {
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ask_state = selectedIndex;
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});
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}
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void _nextQuestion() {
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setState(() {
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if (_currentQuestionIndex < v.questions.length - 1) {
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ask_state = -1;
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_currentQuestionIndex++;
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} else {
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_showResultDialog();
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}
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});
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}
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void _showResultDialog() {
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showDialog(
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context: context,
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builder: (BuildContext context) {
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return AlertDialog(
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title: const Text('Quiz Completed'),
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content: Text('Your score: $_score / ${v.questions.length}'),
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actions: [
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TextButton(
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child: const Text('Restart'),
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onPressed: () {
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setState(() {
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_currentQuestionIndex = 0;
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_score = 0;
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});
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Navigator.of(context).pop();
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},
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),
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],
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);
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},
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);
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('Learn App'),
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),
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body: Padding(
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padding: const EdgeInsets.all(16.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Text(
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v.questions[_currentQuestionIndex].quest,
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style: const TextStyle(
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fontSize: 20.0,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(height: 20.0),
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...v.questions[_currentQuestionIndex].answers.map(
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(option) {
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return Container(
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margin: const EdgeInsets.symmetric(vertical: 8.0),
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child: ElevatedButton(
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onPressed: () => ask_state == -1
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? _checkAnswer(
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v.questions[_currentQuestionIndex].answers
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.indexOf(option),
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)
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: _nextQuestion(),
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child: Text(option),
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style: ElevatedButton.styleFrom(
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backgroundColor: ask_state == -1
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? Colors.blue
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: (v.questions[_currentQuestionIndex].correct ==
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v.questions[_currentQuestionIndex].answers
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.indexOf(option)
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? Colors.green
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: Colors.red), // Change the button color here
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),
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));
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},
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),
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],
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),
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),
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);
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}
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}
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