556 lines
21 KiB
Dart
556 lines
21 KiB
Dart
import 'dart:math' as math;
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import 'package:flutter/material.dart';
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import 'package:lottie/lottie.dart';
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typedef QuizNextBuilder =
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Route<void> Function(BuildContext context, int nextScore);
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enum QuizAnswerType { text, image, number, yesNo }
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class QuizAnswer {
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const QuizAnswer({
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required this.title,
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required this.description,
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required this.weight,
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this.imagePath,
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this.value,
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});
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final String title;
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final String description;
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final int weight;
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final String? imagePath;
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final String? value;
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}
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class QuizQuestionScreen extends StatefulWidget {
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const QuizQuestionScreen({
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super.key,
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required this.title,
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required this.question,
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required this.answers,
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required this.nextRoute,
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this.currentScore = 0,
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this.onFinished,
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this.isFinal = false,
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this.showBackButton = false,
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this.answerType = QuizAnswerType.text,
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this.questionImagePaths = const [],
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});
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final String title;
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final String question;
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final List<QuizAnswer> answers;
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final QuizNextBuilder nextRoute;
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final int currentScore;
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final VoidCallback? onFinished;
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final bool isFinal;
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final bool showBackButton;
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final QuizAnswerType answerType;
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final List<String> questionImagePaths;
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@override
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State<QuizQuestionScreen> createState() => _QuizQuestionScreenState();
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}
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class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
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int? _selected;
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TextEditingController? _numberController;
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int? _numberValue;
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@override
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void initState() {
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super.initState();
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if (widget.answerType == QuizAnswerType.number) {
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_numberController = TextEditingController();
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}
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}
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@override
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void dispose() {
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_numberController?.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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final size = MediaQuery.sizeOf(context);
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bool canProceed = _selected != null;
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if (widget.answerType == QuizAnswerType.number) {
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canProceed = _numberValue != null && _numberValue! >= 0;
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}
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return Scaffold(
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body: Stack(
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clipBehavior: Clip.none,
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children: [
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Positioned.fill(
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child: Container(
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decoration: const BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.topCenter,
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end: Alignment.bottomCenter,
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colors: [Color(0xFFFFE6F1), Color(0xFFFFC9DF)],
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),
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),
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),
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),
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Positioned(
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left: -size.width * 0.40,
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bottom: -size.width * 0.45,
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child: IgnorePointer(
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child: SizedBox(
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width: size.width * 1.05,
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height: size.width * 1.05,
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child: Transform.rotate(
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angle: 35 * math.pi / 180,
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child: Opacity(
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opacity: 0.95,
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child: Lottie.asset(
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'lottie/Liquid waves.json',
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fit: BoxFit.cover,
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repeat: true,
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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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SafeArea(
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child: Center(
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child: ConstrainedBox(
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constraints: const BoxConstraints(maxWidth: 520),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Padding(
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padding: const EdgeInsets.fromLTRB(20, 18, 20, 10),
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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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widget.title,
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textAlign: TextAlign.center,
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style: TextStyle(
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color: Colors.black.withValues(alpha: 0.55),
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fontWeight: FontWeight.w800,
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),
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),
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const SizedBox(height: 6),
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if (widget.questionImagePaths.isNotEmpty) ...[
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const SizedBox(height: 6),
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_QuestionReferenceImages(
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paths: widget.questionImagePaths,
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),
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const SizedBox(height: 10),
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],
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Text(
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widget.question,
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textAlign: TextAlign.center,
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style: const TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.w900,
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color: Color(0xFFFF55A7),
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height: 1.2,
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),
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),
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const SizedBox(height: 8),
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Text(
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widget.answerType == QuizAnswerType.number
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? 'Insira o número'
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: widget.answerType == QuizAnswerType.yesNo
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? 'Escolha uma opção'
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: 'Escolha apenas uma opção',
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textAlign: TextAlign.center,
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style: TextStyle(
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color: Colors.black.withValues(alpha: 0.55),
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fontWeight: FontWeight.w700,
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),
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),
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],
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),
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),
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Expanded(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 20),
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child: widget.answerType == QuizAnswerType.number
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? _buildNumberInput()
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: ListView.separated(
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padding: const EdgeInsets.only(bottom: 12),
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itemCount: widget.answers.length,
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separatorBuilder: (context, index) =>
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const SizedBox(height: 12),
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itemBuilder: (context, i) {
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return _QuizAnswerTile(
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answer: widget.answers[i],
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selected: _selected == i,
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onTap: () => setState(() => _selected = i),
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);
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},
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),
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),
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),
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Padding(
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padding: const EdgeInsets.fromLTRB(20, 8, 20, 18),
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child: Column(
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children: [
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SizedBox(
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width: size.width * 0.62,
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height: 46,
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child: FilledButton(
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style:
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FilledButton.styleFrom(
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backgroundColor: const Color(0xFF2F9E94),
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foregroundColor: Colors.white,
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shape: const StadiumBorder(),
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textStyle: const TextStyle(
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fontWeight: FontWeight.w900,
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),
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).copyWith(
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animationDuration: const Duration(
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milliseconds: 180,
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),
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splashFactory: InkSparkle.splashFactory,
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overlayColor:
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WidgetStateProperty.resolveWith<Color?>(
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(states) {
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if (states.contains(
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WidgetState.pressed,
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)) {
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return Colors.white.withValues(
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alpha: 0.14,
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);
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}
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if (states.contains(
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WidgetState.hovered,
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) ||
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states.contains(
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WidgetState.focused,
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)) {
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return Colors.white.withValues(
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alpha: 0.08,
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);
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}
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return null;
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},
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),
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),
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onPressed: !canProceed
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? null
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: () {
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int nextScore = widget.currentScore;
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if (widget.answerType ==
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QuizAnswerType.number) {
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nextScore =
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widget.currentScore +
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(_numberValue ?? 0);
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} else {
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final picked =
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widget.answers[_selected!];
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nextScore =
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widget.currentScore + picked.weight;
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}
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if (widget.isFinal) {
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final finishedRoute = widget.nextRoute(
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context,
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nextScore,
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);
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Navigator.of(
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context,
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).pushReplacement(finishedRoute);
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return;
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}
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Navigator.of(context).push(
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widget.nextRoute(context, nextScore),
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);
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},
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child: Text(
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widget.isFinal ? 'Concluir' : 'Avançar',
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),
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),
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),
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if (widget.showBackButton) ...[
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const SizedBox(height: 10),
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SizedBox(
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width: size.width * 0.62,
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height: 42,
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child: FilledButton(
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style:
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FilledButton.styleFrom(
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backgroundColor: const Color(0xFF2F9E94),
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foregroundColor: Colors.white,
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shape: const StadiumBorder(),
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textStyle: const TextStyle(
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fontWeight: FontWeight.w900,
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),
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).copyWith(
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animationDuration: const Duration(
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milliseconds: 180,
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),
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splashFactory: InkSparkle.splashFactory,
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overlayColor:
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WidgetStateProperty.resolveWith<
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Color?
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>((states) {
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if (states.contains(
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WidgetState.pressed,
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)) {
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return Colors.white.withValues(
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alpha: 0.14,
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);
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}
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if (states.contains(
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WidgetState.hovered,
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) ||
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states.contains(
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WidgetState.focused,
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)) {
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return Colors.white.withValues(
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alpha: 0.08,
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);
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}
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return null;
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}),
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),
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onPressed: () =>
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Navigator.of(context).maybePop(),
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child: const Text('Voltar'),
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),
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),
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],
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const SizedBox(height: 10),
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SizedBox(
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width: size.width * 0.62,
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height: 42,
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child: OutlinedButton(
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style: OutlinedButton.styleFrom(
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foregroundColor: const Color(0xFF2F9E94),
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side: const BorderSide(
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color: Color(0xFF2F9E94),
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width: 1.3,
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),
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shape: const StadiumBorder(),
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textStyle: const TextStyle(
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fontWeight: FontWeight.w900,
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),
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),
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onPressed: () => Navigator.of(
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context,
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).popUntil((route) => route.isFirst),
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child: const Text('Voltar para homepage'),
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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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],
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),
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);
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}
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Widget _buildNumberInput() {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Container(
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width: 150,
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decoration: BoxDecoration(
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color: Colors.white.withValues(alpha: 0.70),
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borderRadius: BorderRadius.circular(16),
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border: Border.all(
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color: Colors.black.withValues(alpha: 0.12),
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width: 1.0,
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),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withValues(alpha: 0.06),
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blurRadius: 18,
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offset: const Offset(0, 10),
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),
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],
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),
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child: TextField(
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controller: _numberController,
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keyboardType: TextInputType.number,
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textAlign: TextAlign.center,
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style: const TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.w900,
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color: Color(0xFF2F9E94),
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),
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decoration: const InputDecoration(
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border: InputBorder.none,
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hintText: '0',
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hintStyle: TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.w900,
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color: Colors.grey,
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),
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contentPadding: EdgeInsets.symmetric(vertical: 20),
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),
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onChanged: (value) {
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setState(() {
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_numberValue = int.tryParse(value);
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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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class _QuizAnswerTile extends StatelessWidget {
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const _QuizAnswerTile({
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required this.answer,
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required this.selected,
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required this.onTap,
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});
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final QuizAnswer answer;
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final bool selected;
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final VoidCallback onTap;
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@override
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Widget build(BuildContext context) {
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final borderColor = selected
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? const Color(0xFF2F9E94)
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: Colors.black.withValues(alpha: 0.12);
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final bg = selected
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? Colors.white.withValues(alpha: 0.88)
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: Colors.white.withValues(alpha: 0.70);
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return AnimatedContainer(
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duration: const Duration(milliseconds: 220),
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curve: Curves.easeOutCubic,
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decoration: BoxDecoration(
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color: bg,
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borderRadius: BorderRadius.circular(16),
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border: Border.all(color: borderColor, width: selected ? 1.4 : 1.0),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withValues(alpha: 0.06),
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blurRadius: 18,
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offset: const Offset(0, 10),
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),
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],
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),
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child: Material(
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color: Colors.transparent,
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child: InkWell(
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borderRadius: BorderRadius.circular(16),
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onTap: onTap,
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splashFactory: InkSparkle.splashFactory,
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 14),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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if (answer.imagePath != null) ...[
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ClipRRect(
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borderRadius: BorderRadius.circular(12),
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child: AspectRatio(
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aspectRatio: 4 / 3,
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child: Image.asset(
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answer.imagePath!,
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fit: BoxFit.cover,
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errorBuilder: (context, error, stackTrace) => Container(
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color: Colors.black.withValues(alpha: 0.06),
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child: const Center(
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child: Icon(
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Icons.image_not_supported_outlined,
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color: Colors.black38,
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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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const SizedBox(height: 10),
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],
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Row(
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children: [
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Expanded(
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child: Text(
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answer.title,
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style: const TextStyle(
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fontWeight: FontWeight.w900,
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fontSize: 15,
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color: Color(0xFF2F9E94),
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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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);
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}
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}
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class _QuestionReferenceImages extends StatelessWidget {
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const _QuestionReferenceImages({required this.paths});
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final List<String> paths;
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@override
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Widget build(BuildContext context) {
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if (paths.length == 1) {
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return ClipRRect(
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borderRadius: BorderRadius.circular(14),
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child: AspectRatio(
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aspectRatio: 16 / 9,
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child: Image.asset(
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paths.first,
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fit: BoxFit.cover,
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errorBuilder: (context, error, stackTrace) => _placeholder(),
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),
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),
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);
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}
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return SizedBox(
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height: 120,
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child: ListView.separated(
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scrollDirection: Axis.horizontal,
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itemCount: paths.length,
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separatorBuilder: (context, index) => const SizedBox(width: 10),
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itemBuilder: (context, i) {
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return AspectRatio(
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aspectRatio: 4 / 3,
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child: ClipRRect(
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borderRadius: BorderRadius.circular(12),
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child: Image.asset(
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paths[i],
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fit: BoxFit.cover,
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errorBuilder: (context, error, stackTrace) => _placeholder(),
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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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Widget _placeholder() {
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return Container(
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color: Colors.black.withValues(alpha: 0.06),
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child: const Center(
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child: Icon(Icons.image_not_supported_outlined, color: Colors.black38),
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),
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);
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}
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}
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