Files
CheckTheethKids/lib/quiz/quiz_question_screen.dart

790 lines
35 KiB
Dart

import 'dart:math' as math;
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:lottie/lottie.dart';
import '../screens/video_screen.dart';
import '../widgets/entrance.dart';
import '../widgets/tap_bounce.dart';
typedef QuizNextBuilder =
Route<void> Function(BuildContext context, int nextScore);
enum QuizAnswerType { text, image, number, yesNo }
class QuizAnswer {
const QuizAnswer({
required this.title,
required this.description,
required this.weight,
this.imagePath,
this.value,
});
final String title;
final String description;
final int weight;
final String? imagePath;
final String? value;
}
class QuizQuestionScreen extends StatefulWidget {
const QuizQuestionScreen({
super.key,
required this.title,
required this.question,
required this.answers,
required this.nextRoute,
this.currentScore = 0,
this.onFinished,
this.isFinal = false,
this.showBackButton = false,
this.answerType = QuizAnswerType.text,
this.questionImagePaths = const [],
this.suggestedVideoPath,
this.suggestedYoutubeId,
this.suggestedVideoTitle,
});
final String title;
final String question;
final List<QuizAnswer> answers;
final QuizNextBuilder nextRoute;
final int currentScore;
final VoidCallback? onFinished;
final bool isFinal;
final bool showBackButton;
final QuizAnswerType answerType;
final List<String> questionImagePaths;
final String? suggestedVideoPath;
final String? suggestedYoutubeId;
final String? suggestedVideoTitle;
@override
State<QuizQuestionScreen> createState() => _QuizQuestionScreenState();
}
class _QuizQuestionScreenState extends State<QuizQuestionScreen> {
// Uma criança não tem, na prática, mais do que ~20 dentes numa arcada
// (dentição decídua + permanente em transição já é um caso extremo).
// Serve para barrar valores absurdos como "400".
static const int _maxTeethCount = 20;
int? _selected;
TextEditingController? _numberController;
int? _numberValue;
bool _navigating = false;
@override
void initState() {
super.initState();
if (widget.answerType == QuizAnswerType.number) {
_numberController = TextEditingController();
}
}
@override
void dispose() {
_numberController?.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
final size = MediaQuery.sizeOf(context);
bool canProceed = _selected != null && !_navigating;
if (widget.answerType == QuizAnswerType.number) {
canProceed =
_numberValue != null &&
_numberValue! >= 0 &&
_numberValue! <= _maxTeethCount &&
!_navigating;
}
final bool hasSuggestedVideo =
(widget.suggestedVideoPath?.isNotEmpty ?? false) ||
(widget.suggestedYoutubeId?.isNotEmpty ?? false);
return Scaffold(
body: Stack(
clipBehavior: Clip.none,
children: [
Positioned.fill(
child: Container(
decoration: const BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
colors: [Color(0xFFFFE6F1), Color(0xFFFFC9DF)],
),
),
),
),
Positioned(
left: -size.width * 0.40,
bottom: -size.width * 0.45,
child: IgnorePointer(
child: SizedBox(
width: size.width * 1.05,
height: size.width * 1.05,
child: Transform.rotate(
angle: 35 * math.pi / 180,
child: Opacity(
opacity: 0.95,
child: Lottie.asset(
'lottie/Liquid waves.json',
fit: BoxFit.cover,
repeat: true,
),
),
),
),
),
),
SafeArea(
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
SizedBox(
height: 44,
child: Stack(
alignment: Alignment.center,
children: [
Text(
widget.title,
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.black.withValues(alpha: 0.55),
fontWeight: FontWeight.w800,
),
),
if (widget.showBackButton)
Positioned(
left: 4,
child: TapBounce(
scale: 0.9,
child: Material(
color: Colors.white.withValues(alpha: 0.85),
shape: const CircleBorder(),
elevation: 4,
shadowColor: Colors.black.withValues(
alpha: 0.15,
),
child: InkWell(
customBorder: const CircleBorder(),
onTap: () => Navigator.of(context).maybePop(),
child: const Padding(
padding: EdgeInsets.all(10),
child: Icon(
Icons.arrow_back_rounded,
color: Color(0xFF2F9E94),
size: 22,
),
),
),
),
),
),
],
),
),
Expanded(
child: LayoutBuilder(
builder: (context, constraints) {
return SingleChildScrollView(
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: constraints.maxHeight,
),
child: Center(
child: ConstrainedBox(
constraints: const BoxConstraints(
maxWidth: 520,
),
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 16,
),
child: Column(
crossAxisAlignment:
CrossAxisAlignment.stretch,
mainAxisSize: MainAxisSize.min,
mainAxisAlignment: MainAxisAlignment.center,
children: [
FadeSlideIn(
child: Padding(
padding: const EdgeInsets.fromLTRB(
20,
4,
20,
10,
),
child: Column(
crossAxisAlignment:
CrossAxisAlignment.stretch,
children: [
if (widget
.questionImagePaths
.isNotEmpty) ...[
const SizedBox(height: 6),
_QuestionReferenceImages(
paths:
widget.questionImagePaths,
),
const SizedBox(height: 10),
],
if (hasSuggestedVideo) ...[
TextButton.icon(
onPressed: () =>
showVideoPlayerDialog(
context,
VideoData(
id: 0,
title:
widget
.suggestedVideoTitle ??
'Vídeo',
description: '',
videoPath: widget
.suggestedVideoPath,
youtubeId: widget
.suggestedYoutubeId,
),
),
icon: const Icon(
Icons
.play_circle_outline_rounded,
color: Color(0xFF2F9E94),
),
label: Text(
widget.suggestedVideoTitle ??
'Ver vídeo (opcional)',
style: const TextStyle(
color: Color(0xFF2F9E94),
fontWeight:
FontWeight.w800,
),
),
),
const SizedBox(height: 4),
],
Text(
widget.question,
textAlign: TextAlign.center,
style: const TextStyle(
fontSize: 18,
fontWeight: FontWeight.w900,
color: Color(0xFFFF55A7),
height: 1.2,
),
),
const SizedBox(height: 8),
Text(
widget.answerType ==
QuizAnswerType.number
? 'Insira o número'
: widget.answerType ==
QuizAnswerType.yesNo
? 'Escolha uma opção'
: 'Escolha apenas uma opção',
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.black
.withValues(alpha: 0.55),
fontWeight: FontWeight.w700,
),
),
],
),
),
),
const SizedBox(height: 18),
Padding(
padding: const EdgeInsets.symmetric(
horizontal: 20,
),
child:
widget.answerType ==
QuizAnswerType.number
? _buildNumberInput()
: Column(
crossAxisAlignment:
CrossAxisAlignment.stretch,
mainAxisSize: MainAxisSize.min,
children: [
for (
int i = 0;
i < widget.answers.length;
i++
) ...[
if (i > 0)
const SizedBox(height: 12),
FadeSlideIn(
delay: Duration(
milliseconds: 60 * i,
),
child: _QuizAnswerTile(
answer:
widget.answers[i],
selected:
_selected == i,
onTap: () => setState(
() => _selected = i,
),
),
),
],
],
),
),
const SizedBox(height: 24),
Padding(
padding: const EdgeInsets.fromLTRB(
20,
0,
20,
0,
),
child: Column(
children: [
TapBounce(
child: SizedBox(
width: size.width * 0.62,
height: 46,
child: FilledButton(
style:
FilledButton.styleFrom(
backgroundColor:
const Color(
0xFF2F9E94,
),
foregroundColor:
Colors.white,
shape:
const StadiumBorder(),
textStyle:
const TextStyle(
fontWeight:
FontWeight
.w900,
),
).copyWith(
animationDuration:
const Duration(
milliseconds: 180,
),
splashFactory: InkSparkle
.splashFactory,
overlayColor:
WidgetStateProperty.resolveWith<
Color?
>((states) {
if (states
.contains(
WidgetState
.pressed,
)) {
return Colors
.white
.withValues(
alpha:
0.14,
);
}
if (states.contains(
WidgetState
.hovered,
) ||
states.contains(
WidgetState
.focused,
)) {
return Colors
.white
.withValues(
alpha:
0.08,
);
}
return null;
}),
),
onPressed: !canProceed
? null
: () async {
setState(
() => _navigating =
true,
);
int nextScore =
widget
.currentScore;
if (widget.answerType ==
QuizAnswerType
.number) {
nextScore =
widget
.currentScore +
(_numberValue ??
0);
} else {
final picked = widget
.answers[_selected!];
nextScore =
widget
.currentScore +
picked.weight;
}
if (widget.isFinal) {
final finishedRoute =
widget.nextRoute(
context,
nextScore,
);
Navigator.of(
context,
).pushReplacement(
finishedRoute,
);
return;
}
await Navigator.of(
context,
).push(
widget.nextRoute(
context,
nextScore,
),
);
if (mounted) {
setState(
() => _navigating =
false,
);
}
},
child: Text(
widget.isFinal
? 'Concluir'
: 'Avançar',
),
),
),
),
const SizedBox(height: 10),
TapBounce(
child: SizedBox(
width: size.width * 0.62,
height: 42,
child: OutlinedButton(
style:
OutlinedButton.styleFrom(
foregroundColor:
const Color(
0xFF2F9E94,
),
side: const BorderSide(
color: Color(
0xFF2F9E94,
),
width: 1.3,
),
shape:
const StadiumBorder(),
textStyle:
const TextStyle(
fontWeight:
FontWeight
.w900,
),
),
onPressed: () =>
Navigator.of(
context,
).popUntil(
(route) =>
route.isFirst,
),
child: const Text(
'Voltar para homepage',
),
),
),
),
],
),
),
],
),
),
),
),
),
);
},
),
),
],
),
),
],
),
);
}
Widget _buildNumberInput() {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
width: 150,
decoration: BoxDecoration(
color: Colors.white.withValues(alpha: 0.70),
borderRadius: BorderRadius.circular(16),
border: Border.all(
color: Colors.black.withValues(alpha: 0.12),
width: 1.0,
),
boxShadow: [
BoxShadow(
color: Colors.black.withValues(alpha: 0.06),
blurRadius: 18,
offset: const Offset(0, 10),
),
],
),
child: TextField(
controller: _numberController,
keyboardType: TextInputType.number,
textAlign: TextAlign.center,
inputFormatters: [
FilteringTextInputFormatter.digitsOnly,
LengthLimitingTextInputFormatter(2),
],
style: const TextStyle(
fontSize: 24,
fontWeight: FontWeight.w900,
color: Color(0xFF2F9E94),
),
decoration: const InputDecoration(
border: InputBorder.none,
hintText: '0',
hintStyle: TextStyle(
fontSize: 24,
fontWeight: FontWeight.w900,
color: Colors.grey,
),
contentPadding: EdgeInsets.symmetric(vertical: 20),
),
onChanged: (value) {
setState(() {
_numberValue = int.tryParse(value);
});
},
),
),
if (_numberValue != null && _numberValue! > _maxTeethCount) ...[
const SizedBox(height: 10),
Text(
'Um número tão alto assim não é possível.\nO máximo é $_maxTeethCount.',
textAlign: TextAlign.center,
style: const TextStyle(
color: Color(0xFFFF55A7),
fontWeight: FontWeight.w700,
fontSize: 12,
),
),
],
],
),
);
}
}
class _QuizAnswerTile extends StatelessWidget {
const _QuizAnswerTile({
required this.answer,
required this.selected,
required this.onTap,
});
final QuizAnswer answer;
final bool selected;
final VoidCallback onTap;
@override
Widget build(BuildContext context) {
final borderColor = selected
? const Color(0xFF2F9E94)
: Colors.black.withValues(alpha: 0.12);
final bg = selected
? Colors.white.withValues(alpha: 0.88)
: Colors.white.withValues(alpha: 0.70);
return TapBounce(
scale: 0.97,
child: Stack(
clipBehavior: Clip.none,
fit: StackFit.passthrough,
children: [
AnimatedContainer(
duration: const Duration(milliseconds: 220),
curve: Curves.easeOutCubic,
decoration: BoxDecoration(
color: bg,
borderRadius: BorderRadius.circular(16),
border: Border.all(
color: borderColor,
width: selected ? 1.4 : 1.0,
),
boxShadow: [
BoxShadow(
color: Colors.black.withValues(alpha: 0.06),
blurRadius: 18,
offset: const Offset(0, 10),
),
],
),
child: Material(
color: Colors.transparent,
child: InkWell(
borderRadius: BorderRadius.circular(16),
onTap: onTap,
splashFactory: InkSparkle.splashFactory,
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 16,
vertical: 14,
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
if (answer.imagePath != null) ...[
ClipRRect(
borderRadius: BorderRadius.circular(12),
child: AspectRatio(
aspectRatio: 4 / 3,
child: Image.asset(
answer.imagePath!,
fit: BoxFit.cover,
errorBuilder: (context, error, stackTrace) =>
Container(
color: Colors.black.withValues(
alpha: 0.06,
),
child: const Center(
child: Icon(
Icons.image_not_supported_outlined,
color: Colors.black38,
),
),
),
),
),
),
const SizedBox(height: 10),
],
Text(
answer.title,
textAlign: TextAlign.center,
style: const TextStyle(
fontWeight: FontWeight.w900,
fontSize: 15,
color: Color(0xFF2F9E94),
),
),
],
),
),
),
),
),
Positioned(
top: 8,
right: 8,
child: IgnorePointer(
child: AnimatedScale(
scale: selected ? 1.0 : 0.0,
duration: const Duration(milliseconds: 220),
curve: Curves.easeOutBack,
child: Container(
width: 22,
height: 22,
decoration: const BoxDecoration(
color: Color(0xFF2F9E94),
shape: BoxShape.circle,
),
child: const Icon(
Icons.check_rounded,
size: 15,
color: Colors.white,
),
),
),
),
),
],
),
);
}
}
class _QuestionReferenceImages extends StatelessWidget {
const _QuestionReferenceImages({required this.paths});
final List<String> paths;
@override
Widget build(BuildContext context) {
if (paths.length == 1) {
return ClipRRect(
borderRadius: BorderRadius.circular(14),
child: AspectRatio(
aspectRatio: 16 / 9,
child: Image.asset(
paths.first,
fit: BoxFit.cover,
cacheWidth: 800,
errorBuilder: (context, error, stackTrace) => _placeholder(),
),
),
);
}
return SizedBox(
height: 120,
child: ListView.separated(
scrollDirection: Axis.horizontal,
itemCount: paths.length,
separatorBuilder: (context, index) => const SizedBox(width: 10),
itemBuilder: (context, i) {
return AspectRatio(
aspectRatio: 4 / 3,
child: ClipRRect(
borderRadius: BorderRadius.circular(12),
child: Image.asset(
paths[i],
cacheWidth: 300,
fit: BoxFit.cover,
errorBuilder: (context, error, stackTrace) => _placeholder(),
),
),
);
},
),
);
}
Widget _placeholder() {
return Container(
color: Colors.black.withValues(alpha: 0.06),
child: const Center(
child: Icon(Icons.image_not_supported_outlined, color: Colors.black38),
),
);
}
}