generated from dellevin/template
144 lines
4.4 KiB
Dart
144 lines
4.4 KiB
Dart
import 'package:flutter/material.dart';
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import '../../models/data_models.dart';
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import '../../widgets/fade_in_local_image.dart';
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import '../../utils/image_saver.dart';
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/// 海报画廊页面 - 支持左右滑动浏览
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class PosterGalleryPage extends StatefulWidget {
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final List<MoviePoster> posters;
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final int initialIndex;
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const PosterGalleryPage({
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super.key,
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required this.posters,
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required this.initialIndex,
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});
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@override
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State<PosterGalleryPage> createState() => _PosterGalleryPageState();
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}
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class _PosterGalleryPageState extends State<PosterGalleryPage> {
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late PageController _pageController;
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late int _currentIndex;
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@override
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void initState() {
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super.initState();
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_currentIndex = widget.initialIndex;
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_pageController = PageController(initialPage: widget.initialIndex);
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}
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@override
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void dispose() {
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_pageController.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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return Scaffold(
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backgroundColor: Colors.black,
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body: Stack(
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children: [
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// 页面视图 - 支持左右滑动
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PageView.builder(
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controller: _pageController,
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itemCount: widget.posters.length,
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onPageChanged: (index) {
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setState(() => _currentIndex = index);
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},
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itemBuilder: (context, index) {
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final poster = widget.posters[index];
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return GestureDetector(
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onLongPress: () => ImageSaver.showSaveFromFileSheet(poster.posterPath, context: context),
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child: InteractiveViewer(
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minScale: 0.5,
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maxScale: 3.0,
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child: Center(
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child: FadeInLocalImage(
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path: poster.posterPath,
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fit: BoxFit.contain,
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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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// 顶部导航栏
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Positioned(
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top: 0,
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left: 0,
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right: 0,
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child: SafeArea(
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child: Container(
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padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 8),
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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.black.withValues(alpha: 0.7),
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Colors.transparent,
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],
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),
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),
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child: Row(
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children: [
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// 返回按钮
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IconButton(
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onPressed: () => Navigator.pop(context),
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icon: const Icon(Icons.arrow_back, color: Colors.white),
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),
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const Spacer(),
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// 页码指示器
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Text(
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'${_currentIndex + 1} / ${widget.posters.length}',
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style: const TextStyle(
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color: Colors.white,
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fontSize: 16,
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fontWeight: FontWeight.w500,
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),
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),
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const Spacer(),
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// 占位，保持对称
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const SizedBox(width: 48),
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],
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),
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),
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),
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),
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// 底部指示器（点状）
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if (widget.posters.length > 1)
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Positioned(
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bottom: 20,
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left: 0,
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right: 0,
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child: SafeArea(
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: List.generate(
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widget.posters.length,
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(index) => Container(
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width: 8,
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height: 8,
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margin: const EdgeInsets.symmetric(horizontal: 4),
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: index == _currentIndex
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? Colors.white
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: Colors.white.withValues(alpha: 0.4),
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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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