Files
CheckTheethKids/lib/screens/video_screen.dart
2026-05-26 22:00:07 +01:00

736 lines
22 KiB
Dart

import 'dart:math' as math;
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:lottie/lottie.dart';
import 'package:video_player/video_player.dart';
// Video data structure - easily editable for future updates
class VideoData {
final int id;
final String title;
final String description;
final String videoPath;
VideoData({
required this.id,
required this.title,
required this.description,
required this.videoPath,
});
}
// List of all videos - edit titles and descriptions here
final List<VideoData> videoList = [
VideoData(
id: 1,
title: 'Episódio 1',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_01.mp4',
),
VideoData(
id: 2,
title: 'Episódio 2',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_02.mp4',
),
VideoData(
id: 3,
title: 'Episódio 3',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_03.mp4',
),
VideoData(
id: 4,
title: 'Episódio 4',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_04.mp4',
),
VideoData(
id: 5,
title: 'Episódio 5',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_05.mp4',
),
VideoData(
id: 6,
title: 'Episódio 6',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_06.mp4',
),
VideoData(
id: 7,
title: 'Episódio 7',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_07.mp4',
),
VideoData(
id: 8,
title: 'Episódio 8',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_08.mp4',
),
VideoData(
id: 9,
title: 'Episódio 9',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_09.mp4',
),
VideoData(
id: 10,
title: 'Episódio 10',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_10.mp4',
),
VideoData(
id: 11,
title: 'Episódio 11',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_11.mp4',
),
VideoData(
id: 12,
title: 'Episódio 12',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_12.mp4',
),
VideoData(
id: 13,
title: 'Episódio 13',
description: 'Aprenda sobre saúde bucal neste episódio',
videoPath: 'assets/videos/episodio_13.mp4',
),
];
// Cache for video controllers to avoid re-initializing
final Map<String, VideoPlayerController> _videoControllerCache = {};
class VideoScreen extends StatefulWidget {
const VideoScreen({super.key});
static const Color _teal = Color(0xFF2F9E94);
static const Color _accentPink = Color(0xFFFF55A7);
@override
State<VideoScreen> createState() => _VideoScreenState();
}
class _VideoScreenState extends State<VideoScreen> {
final TextEditingController _searchController = TextEditingController();
List<VideoData> _filteredVideos = videoList;
@override
void initState() {
super.initState();
_filteredVideos = videoList;
_searchController.addListener(_onSearchChanged);
}
@override
void dispose() {
_searchController.dispose();
// Dispose all cached controllers
for (var controller in _videoControllerCache.values) {
controller.dispose();
}
_videoControllerCache.clear();
super.dispose();
}
void _onSearchChanged() {
final query = _searchController.text.toLowerCase();
setState(() {
_filteredVideos = videoList
.where((video) => video.title.toLowerCase().contains(query))
.toList();
});
}
@override
Widget build(BuildContext context) {
final size = MediaQuery.sizeOf(context);
return Scaffold(
appBar: AppBar(
backgroundColor: VideoScreen._teal,
foregroundColor: Colors.white,
elevation: 0,
title: const Text(
'Videos Educativos',
style: TextStyle(fontWeight: FontWeight.w900),
),
),
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: Padding(
padding: const EdgeInsets.all(16),
child: Column(
children: [
// Search bar
Container(
decoration: BoxDecoration(
color: Colors.white.withValues(alpha: 0.9),
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: Colors.black.withValues(alpha: 0.08),
blurRadius: 8,
offset: const Offset(0, 2),
),
],
),
child: TextField(
controller: _searchController,
decoration: InputDecoration(
hintText: 'Pesquisar vídeos...',
prefixIcon: const Icon(
Icons.search,
color: VideoScreen._teal,
),
border: InputBorder.none,
contentPadding: const EdgeInsets.symmetric(
horizontal: 16,
vertical: 14,
),
),
),
),
const SizedBox(height: 16),
// Video grid
Expanded(
child: _filteredVideos.isEmpty
? Center(
child: Text(
'Nenhum vídeo encontrado',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.w600,
color: Colors.black.withValues(alpha: 0.6),
),
),
)
: GridView.builder(
gridDelegate:
const SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 2,
crossAxisSpacing: 12,
mainAxisSpacing: 12,
childAspectRatio: 0.85,
),
itemCount: _filteredVideos.length,
itemBuilder: (context, index) {
return _VideoButton(
video: _filteredVideos[index],
);
},
),
),
],
),
),
),
],
),
);
}
}
class _VideoButton extends StatefulWidget {
const _VideoButton({required this.video});
final VideoData video;
@override
State<_VideoButton> createState() => _VideoButtonState();
}
class _VideoButtonState extends State<_VideoButton> {
VideoPlayerController? _controller;
bool _isInitialized = false;
@override
void initState() {
super.initState();
_initializeVideo();
}
Future<void> _initializeVideo() async {
// Check if controller exists in cache
if (_videoControllerCache.containsKey(widget.video.videoPath)) {
_controller = _videoControllerCache[widget.video.videoPath];
await _controller!.seekTo(const Duration(seconds: 2));
await _controller!.pause();
if (mounted) {
setState(() {
_isInitialized = true;
});
}
return;
}
// Create new controller and cache it
_controller = VideoPlayerController.asset(widget.video.videoPath);
try {
await _controller!.initialize();
await _controller!.seekTo(const Duration(seconds: 2));
await _controller!.pause();
_videoControllerCache[widget.video.videoPath] = _controller!;
if (mounted) {
setState(() {
_isInitialized = true;
});
}
} catch (e) {
if (mounted) {
setState(() {
_isInitialized = false;
});
}
}
}
@override
void dispose() {
// Don't dispose cached controllers, they will be disposed when screen is disposed
if (_controller != null &&
!_videoControllerCache.containsKey(widget.video.videoPath)) {
_controller!.dispose();
}
super.dispose();
}
@override
Widget build(BuildContext context) {
return Material(
elevation: 8,
shadowColor: Colors.black.withValues(alpha: 0.12),
borderRadius: BorderRadius.circular(16),
color: Colors.white,
child: InkWell(
borderRadius: BorderRadius.circular(16),
onTap: () => _showVideoPlayer(context, widget.video),
child: Padding(
padding: const EdgeInsets.all(12),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Container(
height: 80,
decoration: BoxDecoration(
color: const Color(0xFFFFE6F1),
borderRadius: BorderRadius.circular(12),
),
child: _isInitialized && _controller != null
? ClipRRect(
borderRadius: BorderRadius.circular(12),
child: FittedBox(
fit: BoxFit.cover,
child: SizedBox(
width: _controller!.value.size.width,
height: _controller!.value.size.height,
child: VideoPlayer(_controller!),
),
),
)
: const Center(
child: Icon(
Icons.play_circle_fill_rounded,
size: 48,
color: VideoScreen._accentPink,
),
),
),
const SizedBox(height: 10),
Text(
widget.video.title,
style: const TextStyle(
fontWeight: FontWeight.w900,
fontSize: 14,
color: VideoScreen._teal,
),
maxLines: 1,
overflow: TextOverflow.ellipsis,
),
const SizedBox(height: 4),
Text(
widget.video.description,
style: TextStyle(
fontSize: 11,
fontWeight: FontWeight.w600,
color: Colors.black.withValues(alpha: 0.6),
),
maxLines: 2,
overflow: TextOverflow.ellipsis,
),
],
),
),
),
);
}
void _showVideoPlayer(BuildContext context, VideoData video) {
// Dispose the cached controller to avoid codec conflict with dialog controller
if (_videoControllerCache.containsKey(video.videoPath)) {
_videoControllerCache[video.videoPath]!.dispose();
_videoControllerCache.remove(video.videoPath);
}
_controller = null;
showDialog(
context: context,
builder: (context) => _VideoPlayerDialog(video: video),
);
}
}
class _VideoPlayerDialog extends StatefulWidget {
const _VideoPlayerDialog({required this.video});
final VideoData video;
@override
State<_VideoPlayerDialog> createState() => _VideoPlayerDialogState();
}
class _VideoPlayerDialogState extends State<_VideoPlayerDialog> {
late VideoPlayerController _controller;
bool _isInitialized = false;
@override
void initState() {
super.initState();
_initializeVideo();
}
Future<void> _initializeVideo() async {
_controller = VideoPlayerController.asset(widget.video.videoPath);
try {
await _controller.initialize();
if (mounted) {
setState(() {
_isInitialized = true;
});
}
} catch (e) {
if (mounted) {
setState(() {
_isInitialized = false;
});
ScaffoldMessenger.of(
context,
).showSnackBar(SnackBar(content: Text('Erro ao carregar vídeo: $e')));
}
}
}
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
final size = MediaQuery.sizeOf(context);
return Dialog(
backgroundColor: Colors.transparent,
insetPadding: const EdgeInsets.all(16),
child: Container(
decoration: BoxDecoration(
color: VideoScreen._accentPink.withValues(alpha: 0.15),
borderRadius: BorderRadius.circular(24),
border: Border.all(color: VideoScreen._accentPink, width: 3),
),
child: ClipRRect(
borderRadius: BorderRadius.circular(21),
child: SizedBox(
width: size.width * 0.9,
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
// Video player
if (_isInitialized)
AspectRatio(
aspectRatio: _controller.value.aspectRatio,
child: VideoPlayer(_controller),
)
else
const AspectRatio(
aspectRatio: 16 / 9,
child: Center(
child: CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation<Color>(
VideoScreen._accentPink,
),
),
),
),
// Video controls with close button
if (_isInitialized)
_VideoControls(
controller: _controller,
videoPath: widget.video.videoPath,
onClose: () => Navigator.of(context).pop(),
),
],
),
),
),
),
);
}
}
class _VideoControls extends StatefulWidget {
const _VideoControls({
required this.controller,
required this.videoPath,
required this.onClose,
});
final VideoPlayerController controller;
final String videoPath;
final VoidCallback onClose;
@override
State<_VideoControls> createState() => _VideoControlsState();
}
class _VideoControlsState extends State<_VideoControls> {
@override
void initState() {
super.initState();
widget.controller.addListener(_onControllerUpdate);
}
@override
void dispose() {
widget.controller.removeListener(_onControllerUpdate);
super.dispose();
}
void _onControllerUpdate() {
if (mounted) {
setState(() {});
}
}
@override
Widget build(BuildContext context) {
return Container(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
color: VideoScreen._accentPink.withValues(alpha: 0.15),
child: Row(
children: [
// Control buttons
Expanded(
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
// Progress bar
VideoProgressIndicator(
widget.controller,
allowScrubbing: true,
colors: const VideoProgressColors(
playedColor: VideoScreen._teal,
bufferedColor: Colors.white54,
backgroundColor: Colors.white24,
),
),
const SizedBox(height: 4),
// Control buttons
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
IconButton(
icon: Icon(
widget.controller.value.isPlaying
? Icons.pause
: Icons.play_arrow,
color: Colors.white,
),
onPressed: () {
if (widget.controller.value.isPlaying) {
widget.controller.pause();
} else {
widget.controller.play();
}
},
),
IconButton(
icon: const Icon(Icons.fullscreen, color: Colors.white),
onPressed: () {
// Dispose the cached controller to avoid codec conflict with fullscreen controller
if (_videoControllerCache.containsKey(
widget.videoPath,
)) {
_videoControllerCache[widget.videoPath]!.dispose();
_videoControllerCache.remove(widget.videoPath);
}
Navigator.of(context).pop();
Navigator.of(context).push(
MaterialPageRoute(
builder: (context) => _FullscreenVideoPlayer(
videoPath: widget.videoPath,
),
fullscreenDialog: true,
),
);
},
),
],
),
],
),
),
// Close button
IconButton(
icon: const Icon(Icons.close, color: Colors.white),
onPressed: widget.onClose,
),
],
),
);
}
}
class _FullscreenVideoPlayer extends StatefulWidget {
const _FullscreenVideoPlayer({required this.videoPath});
final String videoPath;
@override
State<_FullscreenVideoPlayer> createState() => _FullscreenVideoPlayerState();
}
class _FullscreenVideoPlayerState extends State<_FullscreenVideoPlayer> {
late VideoPlayerController _controller;
bool _isInitialized = false;
@override
void initState() {
super.initState();
SystemChrome.setPreferredOrientations([
DeviceOrientation.landscapeLeft,
DeviceOrientation.landscapeRight,
]);
_initializeVideo();
}
Future<void> _initializeVideo() async {
_controller = VideoPlayerController.asset(widget.videoPath);
try {
await _controller.initialize();
_controller.addListener(_onControllerUpdate);
if (mounted) {
setState(() {
_isInitialized = true;
});
}
} catch (e) {
if (mounted) {
setState(() {
_isInitialized = false;
});
ScaffoldMessenger.of(
context,
).showSnackBar(SnackBar(content: Text('Erro ao carregar vídeo: $e')));
}
}
}
void _onControllerUpdate() {
if (mounted) {
setState(() {});
}
}
@override
void dispose() {
SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
_controller.removeListener(_onControllerUpdate);
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.black,
body: Center(
child: _isInitialized
? AspectRatio(
aspectRatio: _controller.value.aspectRatio,
child: VideoPlayer(_controller),
)
: const CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation<Color>(
VideoScreen._accentPink,
),
),
),
floatingActionButton: Column(
mainAxisSize: MainAxisSize.min,
children: [
if (_isInitialized)
FloatingActionButton(
heroTag: 'play_pause',
backgroundColor: VideoScreen._teal,
onPressed: () {
if (_controller.value.isPlaying) {
_controller.pause();
} else {
_controller.play();
}
},
child: Icon(
_controller.value.isPlaying ? Icons.pause : Icons.play_arrow,
color: Colors.white,
),
),
if (_isInitialized) const SizedBox(height: 16),
FloatingActionButton(
heroTag: 'exit_fullscreen',
backgroundColor: VideoScreen._accentPink,
onPressed: () => Navigator.of(context).pop(),
child: const Icon(Icons.fullscreen_exit, color: Colors.white),
),
],
),
);
}
}