generated from dellevin/template
589 lines
22 KiB
Dart
589 lines
22 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import '../../models/data_models.dart';
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import '../../providers/app_provider.dart';
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import '../../utils/user_prefs.dart';
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import '../../widgets/game_status_bar.dart';
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import '../../widgets/game_list_item.dart';
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import '../../widgets/animated_star_rating.dart';
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import '../../widgets/shimmer_skeleton.dart';
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import '../../widgets/top_fade_scrim.dart';
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import '../../widgets/fade_in_local_image.dart';
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import '../../utils/responsive.dart';
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import '../../widgets/master_detail_scaffold.dart';
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import '../../widgets/detail_placeholder.dart';
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import 'game_detail_page.dart';
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import 'game_add_page.dart';
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/// 状态索引 → 状态值
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const _gameStatusMap = {0: 'completed', 1: 'playing', 2: 'want_to_play', 3: 'abandoned'};
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/// 游戏标签页（PageView 分页 + 触底加载），左右滑动丝滑切换
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class GameTabPage extends StatefulWidget {
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const GameTabPage({super.key});
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@override
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State<GameTabPage> createState() => _GameTabPageState();
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}
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class _GameTabPageState extends State<GameTabPage> {
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late PageController _pageController;
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int _currentPage = 0; // PageView 当前页的唯一真源
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int? _pendingTarget; // 待跟随的页，避免重复调度动画
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int _lastModeSignature = -1; // 编码 wall 模式，检测墙/状态切换
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bool _modeInitialized = false; // 吞掉首次构建的伪"变化"
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@override
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void initState() {
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super.initState();
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_pageController = PageController();
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// 应用启动时保存的初始索引（可能 > 0）
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!mounted) return;
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final p = context.read<AppProvider>();
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final initial = _activeIndexFor(p).clamp(0, _pageCountFor(p) - 1);
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_currentPage = initial;
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if (_pageController.hasClients && initial != 0) _pageController.jumpToPage(initial);
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});
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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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int _pageCountFor(AppProvider p) => p.gameWallMode ? 1 : 4;
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int _activeIndexFor(AppProvider p) => p.gameWallMode ? 0 : p.gameStatusIndex;
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int _modeSignature(AppProvider p) => p.gameWallMode ? 1 : 0;
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@override
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Widget build(BuildContext context) {
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final isWideContent = Breakpoint.isWideContent(context);
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final provider = context.watch<AppProvider>();
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final isWallMode = provider.gameWallMode;
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final masterContent = Column(
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children: [
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if (!isWallMode) const GameStatusBar(),
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Expanded(
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child: Stack(
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children: [
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_buildPageView(provider),
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if (!isWallMode) const TopFadeScrim(),
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],
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),
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),
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],
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);
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if (!isWideContent) return masterContent;
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final selectedGame = provider.selectedGame;
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final detailWidget = provider.isAdding && provider.addingType == 3
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? GameAddPage(onCancel: () => provider.cancelAdding())
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: selectedGame != null
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? GameDetailPage(game: selectedGame, embedded: true)
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: const DetailPlaceholder(icon: Icons.sports_esports_outlined, message: '选择一款游戏查看详情');
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return MasterDetailScaffold(
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master: masterContent,
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detail: detailWidget,
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);
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}
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Widget _buildPageView(AppProvider provider) {
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final wall = provider.gameWallMode;
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final pageCount = _pageCountFor(provider);
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final mode = wall ? 1 : 0;
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// (a) 首次构建作为基线，不当成模式切换
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if (!_modeInitialized) {
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_modeInitialized = true;
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_lastModeSignature = _modeSignature(provider);
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}
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// (b) 模式切换（墙 <-> 状态）：跳到第 0 页 + 重置索引
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else if (_modeSignature(provider) != _lastModeSignature) {
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_lastModeSignature = _modeSignature(provider);
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!mounted || !_pageController.hasClients) return;
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_currentPage = 0;
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_pendingTarget = null;
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if (!wall) provider.setGameStatusIndex(0);
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_pageController.jumpToPage(0);
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});
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}
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// (c) 外部索引变化（bar 点击等）：动画跟随
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final target = _activeIndexFor(provider).clamp(0, pageCount - 1);
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if (pageCount > 1 && _pageController.hasClients && target != _currentPage && _pendingTarget != target) {
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_pendingTarget = target;
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!mounted || !_pageController.hasClients) return;
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_pageController.animateToPage(
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target,
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duration: const Duration(milliseconds: 300),
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curve: Curves.easeInOut,
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);
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});
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}
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return PageView.builder(
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controller: _pageController,
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itemCount: pageCount,
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allowImplicitScrolling: true, // 拖动时预构建相邻页 → 无白色空隙
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onPageChanged: (index) => _onPageChanged(index, provider),
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itemBuilder: (context, index) => _GameTabView(
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key: ValueKey('$mode-$index'), // 模式切换时全部重建
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index: index,
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mode: mode,
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),
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);
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}
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void _onPageChanged(int index, AppProvider provider) {
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_currentPage = index;
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_pendingTarget = null;
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final wall = provider.gameWallMode;
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final cur = wall ? 0 : provider.gameStatusIndex;
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// 回显守卫：仅在真实拖动导致索引变化时推送，避免死循环
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if (cur != index) {
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if (!wall) provider.setGameStatusIndex(index);
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}
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}
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}
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/// 单页：独立持有列表数据、滚动与分页状态，滑走再滑回保留状态
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class _GameTabView extends StatefulWidget {
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final int index; // 0..pageCount-1
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final int mode; // 0=status, 1=wall(墙)
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const _GameTabView({super.key, required this.index, required this.mode});
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@override
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State<_GameTabView> createState() => _GameTabViewState();
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}
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class _GameTabViewState extends State<_GameTabView>
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with AutomaticKeepAliveClientMixin {
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final List<Game> _items = [];
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bool _hasMore = true;
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bool _isLoading = false;
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int _offset = 0;
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bool _initialized = false;
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late ScrollController _scrollController;
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AppProvider? _provider;
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int _lastScrollSignal = 0;
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int _lastEditRefreshCounter = 0;
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int _prevGameCount = -1;
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int _prevSortMode = -1;
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String? get _status => widget.mode == 0 ? _gameStatusMap[widget.index] : null;
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@override
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bool get wantKeepAlive => true;
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@override
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void initState() {
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super.initState();
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_scrollController = ScrollController()..addListener(_onScroll);
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (!mounted) return;
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final p = context.read<AppProvider>();
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_provider = p;
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_lastEditRefreshCounter = p.editRefreshCounter;
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_lastScrollSignal = p.scrollToTopSignal;
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_prevGameCount = p.games.length;
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_prevSortMode = UserPrefs().gameSortMode;
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p.addListener(_onDataChanged);
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_loadFirst();
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});
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}
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@override
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void dispose() {
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_provider?.removeListener(_onDataChanged);
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_scrollController.dispose();
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super.dispose();
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}
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void _onDataChanged() {
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if (!_initialized || !mounted) return;
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final p = context.read<AppProvider>();
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// 回到顶部信号：每页滚自己的 controller
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if (p.scrollToTopSignal != _lastScrollSignal) {
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_lastScrollSignal = p.scrollToTopSignal;
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if (_scrollController.hasClients) {
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_scrollController.animateTo(0,
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duration: const Duration(milliseconds: 300), curve: Curves.easeOut);
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}
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}
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// 就地编辑：更新本页匹配项；状态变更则移出本页，不重置分页
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if (p.editRefreshCounter > _lastEditRefreshCounter && p.lastEditedItemId != null) {
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_lastEditRefreshCounter = p.editRefreshCounter;
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_prevGameCount = p.games.length;
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final id = p.lastEditedItemId!;
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final idx = _items.indexWhere((g) => g.id == id);
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final updated = p.games.where((g) => g.id == id).firstOrNull;
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if (updated != null) {
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if (_status != null && updated.status != _status) {
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// 状态已变更，从当前列表移除
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if (idx != -1) setState(() { _items.removeAt(idx); });
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} else if (idx != -1) {
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setState(() { _items[idx] = updated; });
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}
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} else if (idx != -1) {
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// 游戏已被删除，从列表移除
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setState(() { _items.removeAt(idx); });
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}
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return;
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}
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// 排序/数量变化才重新拉取（布局变化由 context.select 原地重渲染）
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final sortChanged = UserPrefs().gameSortMode != _prevSortMode;
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final countChanged = p.games.length != _prevGameCount;
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if (sortChanged || countChanged) {
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_prevSortMode = UserPrefs().gameSortMode;
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_prevGameCount = p.games.length;
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_loadFirst();
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}
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}
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void _onScroll() {
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if (_scrollController.position.pixels >= _scrollController.position.maxScrollExtent - 200) {
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_loadMore();
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}
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}
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Future<void> _loadFirst() async {
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final provider = context.read<AppProvider>();
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final sortMode = UserPrefs().gameSortMode;
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_initialized = true;
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setState(() { _isLoading = true; _offset = 0; _hasMore = true; });
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final list = await provider.loadGamesPaged(status: _status, offset: 0, sortMode: sortMode);
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if (!mounted) return;
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setState(() {
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_items.clear();
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_items.addAll(list);
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_offset = list.length;
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_hasMore = list.length >= 20;
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_isLoading = false;
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});
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}
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Future<void> _loadMore() async {
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if (_isLoading || !_hasMore) return;
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setState(() => _isLoading = true);
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final provider = context.read<AppProvider>();
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final sortMode = UserPrefs().gameSortMode;
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final list = await provider.loadGamesPaged(status: _status, offset: _offset, sortMode: sortMode);
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if (!mounted) return;
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setState(() {
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_items.addAll(list);
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_offset += list.length;
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_hasMore = list.length >= 20;
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_isLoading = false;
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});
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}
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Future<void> _refresh() async {
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final provider = context.read<AppProvider>();
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await provider.loadGames();
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await _loadFirst();
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}
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void _onGameTap(Game game) {
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if (Breakpoint.isWideContent(context)) {
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context.read<AppProvider>().selectGame(game);
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} else {
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Navigator.pushNamed(context, '/game-detail', arguments: game);
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}
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}
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@override
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Widget build(BuildContext context) {
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super.build(context);
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final colors = Theme.of(context).colorScheme;
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final layoutStyle = context.select<AppProvider, int>((p) => p.gameLayoutStyle);
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final content = () {
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if (_items.isEmpty && _isLoading) return _buildSkeleton(layoutStyle);
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if (_items.isEmpty) {
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return RefreshIndicator(
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onRefresh: _refresh,
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color: colors.primary,
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backgroundColor: colors.surface,
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child: ListView(
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physics: const AlwaysScrollableScrollPhysics(),
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children: [_buildEmptyState()],
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),
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);
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}
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return RefreshIndicator(
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onRefresh: _refresh,
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color: colors.primary,
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backgroundColor: colors.surface,
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child: layoutStyle == 1
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? _buildListView()
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: layoutStyle == 2
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? _buildCoverCardView()
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: _buildGridView(),
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);
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}();
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return content;
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}
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Widget _buildGridView() {
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return LayoutBuilder(
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builder: (context, constraints) {
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final crossAxisCount = responsiveCrossAxisCount(constraints.maxWidth, minItemWidth: 110);
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final isWideContent = Breakpoint.isWideContent(context);
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final provider = context.read<AppProvider>();
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return GridView.builder(
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controller: _scrollController,
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padding: const EdgeInsets.fromLTRB(16, 16, 16, 100),
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gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
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crossAxisCount: crossAxisCount, childAspectRatio: 0.55, crossAxisSpacing: 12, mainAxisSpacing: 16,
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),
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itemCount: _items.length + (_hasMore ? 1 : 0),
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itemBuilder: (context, index) {
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if (index >= _items.length) return _buildLoadMoreIndicator();
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final item = _items[index];
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return GameListItem(
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game: item,
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selected: isWideContent && provider.selectedGame?.id == item.id,
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onTap: () => _onGameTap(item),
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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 _buildListView() {
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return ListView.builder(
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controller: _scrollController,
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padding: const EdgeInsets.fromLTRB(12, 8, 12, 100),
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itemCount: _items.length + (_hasMore ? 1 : 0),
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itemBuilder: (context, index) {
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if (index >= _items.length) return _buildLoadMoreIndicator();
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return _buildListCard(_items[index]);
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},
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);
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}
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Widget _buildLoadMoreIndicator() {
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return Padding(
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padding: const EdgeInsets.symmetric(vertical: 20),
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child: Center(
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child: _isLoading
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? SizedBox(width: 20, height: 20, child: CircularProgressIndicator(strokeWidth: 2, color: Theme.of(context).colorScheme.primary))
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: Text('没有更多了', style: TextStyle(fontSize: 12, color: Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.3))),
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),
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);
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}
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Widget _buildListCard(Game game) {
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final colors = Theme.of(context).colorScheme;
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return GestureDetector(
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onTap: () => _onGameTap(game),
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onLongPress: () => _showDeleteDialog(context, game),
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child: Container(
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margin: const EdgeInsets.only(bottom: 8),
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padding: const EdgeInsets.all(12),
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decoration: BoxDecoration(color: colors.surfaceContainerHigh, borderRadius: BorderRadius.circular(12)),
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child: Row(children: [
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Container(
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width: 48, height: 64,
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decoration: BoxDecoration(color: colors.outlineVariant, borderRadius: BorderRadius.circular(6)),
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clipBehavior: Clip.antiAlias,
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child: game.coverPath != null && game.coverPath!.isNotEmpty
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? FadeInLocalImage(path: game.coverPath, fit: BoxFit.cover,
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errorWidget: Icon(Icons.sports_esports_outlined, size: 22, color: colors.onSurface.withValues(alpha: 0.25)))
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: Icon(Icons.sports_esports_outlined, size: 22, color: colors.onSurface.withValues(alpha: 0.25)),
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),
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const SizedBox(width: 12),
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Expanded(child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
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Text(game.title, maxLines: 1, overflow: TextOverflow.ellipsis,
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style: TextStyle(fontSize: 15, fontWeight: FontWeight.w600, color: colors.onSurface)),
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const SizedBox(height: 3),
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Text(_buildSubtitle(game), maxLines: 1, overflow: TextOverflow.ellipsis,
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style: TextStyle(fontSize: 12, color: colors.onSurface.withValues(alpha: 0.35))),
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const SizedBox(height: 6),
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if (game.rating != null) AnimatedStarRating(rating: game.rating!, starSize: 12, showNumber: true)
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else const SizedBox(height: 14),
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])),
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const SizedBox(width: 8),
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Icon(Icons.chevron_right, color: colors.onSurface.withValues(alpha: 0.2), size: 20),
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]),
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),
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);
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}
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String _buildSubtitle(Game game) {
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final parts = <String>[];
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if (game.platforms.isNotEmpty) parts.add(game.platforms.take(2).join('、'));
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if (game.genres.isNotEmpty) parts.add(game.genres.take(2).join('、'));
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if (game.playTimeHours > 0 || game.playTimeMinutes > 0) {
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parts.add('${game.playTimeHours}时${game.playTimeMinutes}分');
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}
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return parts.join(' · ');
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}
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Widget _buildCoverCardView() {
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return ListView.builder(
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controller: _scrollController,
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padding: const EdgeInsets.fromLTRB(16, 12, 16, 100),
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itemCount: _items.length + (_hasMore ? 1 : 0),
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itemBuilder: (context, index) {
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if (index >= _items.length) return _buildLoadMoreIndicator();
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return _buildCoverCard(_items[index]);
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},
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);
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}
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Widget _buildCoverCard(Game game) {
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final colors = Theme.of(context).colorScheme;
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return GestureDetector(
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onTap: () => _onGameTap(game),
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onLongPress: () => _showDeleteDialog(context, game),
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child: Container(
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height: 200,
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margin: const EdgeInsets.only(bottom: 12),
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(14),
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color: colors.surfaceContainerHigh,
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),
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clipBehavior: Clip.antiAlias,
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child: Stack(fit: StackFit.expand, children: [
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if (game.coverPath != null && game.coverPath!.isNotEmpty)
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FadeInLocalImage(path: game.coverPath, fit: BoxFit.cover,
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errorWidget: Container(color: colors.surfaceContainerHighest))
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else
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Container(color: colors.surfaceContainerHighest,
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child: Icon(Icons.sports_esports_outlined, size: 48, color: colors.onSurface.withValues(alpha: 0.15))),
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Positioned.fill(
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child: DecoratedBox(
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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: [Colors.transparent, Colors.black.withValues(alpha: 0.75)],
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stops: const [0.4, 1.0],
|
||
),
|
||
),
|
||
),
|
||
),
|
||
Positioned(
|
||
left: 14, right: 14, bottom: 14,
|
||
child: Column(crossAxisAlignment: CrossAxisAlignment.start, mainAxisSize: MainAxisSize.min, children: [
|
||
Text(game.title, maxLines: 1, overflow: TextOverflow.ellipsis,
|
||
style: const TextStyle(fontSize: 17, fontWeight: FontWeight.w600, color: Colors.white)),
|
||
const SizedBox(height: 4),
|
||
Row(children: [
|
||
Expanded(
|
||
child: Text(_buildSubtitle(game), maxLines: 1, overflow: TextOverflow.ellipsis,
|
||
style: TextStyle(fontSize: 12, color: Colors.white.withValues(alpha: 0.7))),
|
||
),
|
||
if (game.rating != null) ...[
|
||
const SizedBox(width: 8),
|
||
Icon(Icons.star_rounded, size: 16, color: Colors.amber.shade400),
|
||
const SizedBox(width: 2),
|
||
Text(game.rating!.toStringAsFixed(1),
|
||
style: const TextStyle(fontSize: 13, fontWeight: FontWeight.w600, color: Colors.white)),
|
||
],
|
||
]),
|
||
]),
|
||
),
|
||
]),
|
||
),
|
||
);
|
||
}
|
||
|
||
Widget _buildCoverCardSkeleton() {
|
||
final colors = Theme.of(context).colorScheme;
|
||
return ListView.builder(
|
||
padding: const EdgeInsets.fromLTRB(16, 12, 16, 100),
|
||
itemCount: 4,
|
||
itemBuilder: (_, __) => Container(
|
||
height: 200,
|
||
margin: const EdgeInsets.only(bottom: 12),
|
||
decoration: BoxDecoration(
|
||
color: colors.surfaceContainerHigh,
|
||
borderRadius: BorderRadius.circular(14),
|
||
),
|
||
),
|
||
);
|
||
}
|
||
|
||
void _showDeleteDialog(BuildContext context, Game game) {
|
||
final colors = Theme.of(context).colorScheme;
|
||
showDialog(
|
||
context: context,
|
||
builder: (ctx) => AlertDialog(
|
||
backgroundColor: colors.surface, elevation: 0,
|
||
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
|
||
title: Text('确认删除', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: colors.onSurface)),
|
||
content: Text('确定要删除《${game.title}》吗？删除后可在回收站恢复。',
|
||
style: TextStyle(fontSize: 14, color: colors.onSurface.withValues(alpha: 0.6), height: 1.5)),
|
||
actions: [
|
||
TextButton(onPressed: () => Navigator.pop(ctx),
|
||
child: Text('取消', style: TextStyle(color: colors.onSurface.withValues(alpha: 0.6)))),
|
||
ElevatedButton(
|
||
onPressed: () async {
|
||
await context.read<AppProvider>().removeGame(game.id);
|
||
if (!ctx.mounted) return;
|
||
Navigator.pop(ctx);
|
||
if (mounted) _loadFirst();
|
||
},
|
||
style: ElevatedButton.styleFrom(backgroundColor: colors.error, foregroundColor: colors.onError, elevation: 0,
|
||
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
|
||
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8)),
|
||
child: const Text('删除'),
|
||
),
|
||
],
|
||
actionsPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
|
||
),
|
||
);
|
||
}
|
||
|
||
Widget _buildSkeleton(int layoutStyle) {
|
||
if (layoutStyle == 1) return _buildListSkeleton();
|
||
if (layoutStyle == 2) return _buildCoverCardSkeleton();
|
||
return const GameSkeletonGrid();
|
||
}
|
||
|
||
Widget _buildListSkeleton() {
|
||
final colors = Theme.of(context).colorScheme;
|
||
return ListView.builder(
|
||
padding: const EdgeInsets.fromLTRB(12, 8, 12, 100), itemCount: 6,
|
||
itemBuilder: (_, __) => Container(
|
||
margin: const EdgeInsets.only(bottom: 8), padding: const EdgeInsets.all(12),
|
||
decoration: BoxDecoration(color: colors.surfaceContainerHigh, borderRadius: BorderRadius.circular(12)),
|
||
child: const Row(children: [
|
||
ShimmerSkeleton(width: 48, height: 64, borderRadius: 6), SizedBox(width: 12),
|
||
Expanded(child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
|
||
ShimmerSkeleton(width: 160, height: 16), SizedBox(height: 6),
|
||
ShimmerSkeleton(width: 100, height: 12), SizedBox(height: 6),
|
||
ShimmerSkeleton(width: 70, height: 12),
|
||
])),
|
||
SizedBox(width: 8), ShimmerSkeleton(width: 20, height: 20, borderRadius: 10),
|
||
]),
|
||
),
|
||
);
|
||
}
|
||
|
||
Widget _buildEmptyState() {
|
||
final colors = Theme.of(context).colorScheme;
|
||
final statusText = widget.mode == 1 ? '' : ['已通关', '在玩', '想玩', '弃游'][widget.index];
|
||
return Center(child: Column(mainAxisAlignment: MainAxisAlignment.center, children: [
|
||
Container(width: 80, height: 80,
|
||
decoration: BoxDecoration(color: colors.surfaceContainerHighest, borderRadius: BorderRadius.circular(20)),
|
||
child: Icon(Icons.sports_esports_outlined, size: 40, color: colors.onSurface.withValues(alpha: 0.25))),
|
||
const SizedBox(height: 20),
|
||
Text(widget.mode == 1 ? '暂无游戏' : '暂无$statusText的游戏',
|
||
style: TextStyle(fontSize: 16, color: colors.onSurface.withValues(alpha: 0.4))),
|
||
]));
|
||
}
|
||
} |