168 lines
5.0 KiB
Dart
168 lines
5.0 KiB
Dart
import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:carousel_slider/carousel_slider.dart';
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import '../models/sake_item.dart';
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import '../screens/sake_detail_screen.dart';
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/// 3D風カルーセルウィジェット (v2: carousel_slider版)
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/// 安定した無限スクロールと拡大アニメーションを提供
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class Sake3DCarousel extends StatefulWidget {
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final List<SakeItem> items;
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final double height;
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const Sake3DCarousel({
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super.key,
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required this.items,
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this.height = 240, // 少し高さを確保
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});
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@override
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State<Sake3DCarousel> createState() => _Sake3DCarouselState();
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}
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class _Sake3DCarouselState extends State<Sake3DCarousel> {
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int _currentIndex = 0;
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@override
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Widget build(BuildContext context) {
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if (widget.items.isEmpty) {
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return SizedBox(
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height: widget.height,
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child: const Center(
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child: Text('関連する日本酒がありません'),
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),
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);
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}
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return Column(
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children: [
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CarouselSlider.builder(
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itemCount: widget.items.length,
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itemBuilder: (context, index, realIndex) {
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final item = widget.items[index];
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return _buildCarouselItem(item);
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},
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options: CarouselOptions(
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height: 200,
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aspectRatio: 16/9,
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viewportFraction: 0.6, // 隣が見える幅
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initialPage: 0,
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enableInfiniteScroll: widget.items.length > 2, // 3枚以上で無限
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reverse: false,
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autoPlay: false,
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enlargeCenterPage: true, // 中央を拡大 (ぽにょぽにょ感)
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enlargeFactor: 0.3,
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scrollDirection: Axis.horizontal,
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onPageChanged: (index, reason) {
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setState(() {
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_currentIndex = index;
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});
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},
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),
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),
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const SizedBox(height: 12),
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// インジケーター
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Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: widget.items.asMap().entries.map((entry) {
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return Container(
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width: 8.0,
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height: 8.0,
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margin: const EdgeInsets.symmetric(horizontal: 4.0),
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: (Theme.of(context).brightness == Brightness.dark
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? Colors.white
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: Theme.of(context).primaryColor)
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.withValues(alpha: _currentIndex == entry.key ? 0.9 : 0.2),
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),
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);
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}).toList(),
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),
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],
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);
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}
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Widget _buildCarouselItem(SakeItem item) {
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return GestureDetector(
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onTap: () {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (_) => SakeDetailScreen(sake: item),
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),
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);
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},
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child: Card(
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elevation: 6,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(16),
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),
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clipBehavior: Clip.antiAlias,
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child: Stack(
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fit: StackFit.expand,
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children: [
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// 背景画像
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Hero(
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tag: item.id,
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child: item.displayData.imagePaths.isNotEmpty
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? Image.file(
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File(item.displayData.imagePaths.first),
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fit: BoxFit.cover,
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)
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: Container(
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color: Colors.grey[300],
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child: const Icon(Icons.image, size: 50, color: Colors.grey),
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),
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),
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// グラデーション
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Container(
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decoration: 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: [
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Colors.transparent,
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Colors.black.withValues(alpha: 0.8),
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],
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),
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),
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),
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// テキスト情報
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Positioned(
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bottom: 12,
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left: 12,
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right: 12,
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text(
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item.displayData.displayName,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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textAlign: TextAlign.center,
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style: const TextStyle(
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color: Colors.white,
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fontWeight: FontWeight.bold,
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fontSize: 14,
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),
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),
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Text(
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item.displayData.displayPrefecture,
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style: const TextStyle(
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color: Colors.white70,
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fontSize: 10,
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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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