83 lines
3.2 KiB
Dart
83 lines
3.2 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:hgdj/hj_page/drama/drama_feed_logic.dart';
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import 'package:hgdj/hj_page/drama/view/drama_video_player.dart';
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import 'package:hgdj/tools_base/loading/loading_center_widget.dart';
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import 'package:hgdj/tools_base/unique_tag_mixin.dart';
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/// AI短剧信息流页：竖划一部换一部，每条播该剧第 1 集
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class DramaFeedPage extends StatefulWidget {
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final TabController? superTabCtr;
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final int? tabIndex;
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const DramaFeedPage({super.key, this.superTabCtr, this.tabIndex});
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@override
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State<DramaFeedPage> createState() => _DramaFeedPageState();
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}
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class _DramaFeedPageState extends State<DramaFeedPage> with UniqueTagMixin {
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@override
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Widget build(BuildContext context) {
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return GetBuilder<DramaFeedLogic>(
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tag: uniqueTag, // 多 tab 并存，按实例隔离
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init: DramaFeedLogic(
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superTabCtr: widget.superTabCtr, tabIndex: widget.tabIndex),
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builder: (logic) {
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final Widget content;
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if (!logic.isFirstLoaded) {
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content = const LoadingCenterWidget();
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} else if (logic.list?.isNotEmpty != true) {
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content = CErrorWidget(retryOnTap: () => logic.loadData());
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} else {
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content = _buildFeed(logic);
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}
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return Material(color: Colors.transparent, child: content);
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},
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);
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}
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/// 信息流局部刷新：当前页变化时只 update([idFeed])，各 item 重算 isCurrentPage
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Widget _buildFeed(DramaFeedLogic logic) {
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return RefreshIndicator(
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onRefresh: () => logic.loadData(),
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child: GetBuilder<DramaFeedLogic>(
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tag: uniqueTag,
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id: DramaFeedLogic.idFeed,
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// 上下滑动开始/结束 → 切换 isScrolling，各播放器据此隐藏/显示进度条
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builder: (logic) => NotificationListener<ScrollNotification>(
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onNotification: (n) {
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if (n is ScrollStartNotification) {
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logic.isScrolling.value = true;
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} else if (n is ScrollEndNotification) {
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logic.isScrolling.value = false;
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}
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return false;
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},
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child: PageView.builder(
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onPageChanged: logic.onPageChanged,
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physics: const ClampingScrollPhysics(),
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controller: logic.pageCtr,
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scrollDirection: Axis.vertical,
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allowImplicitScrolling: true,
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itemCount: logic.list?.length ?? 0,
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itemBuilder: (context, index) {
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final video = logic.list![index];
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//推荐流不去重，同一部剧会反复下发，光用剧 id 会撞 key(PageView 直接抛 Duplicate keys)；
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//带上下标才唯一。也不能只用下标——下拉刷新后同一个位置换了别的剧，
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//key 不变 PageView 就会复用 State，播放器不重建，播的还是上一部
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return DramaVideoPlayer(
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key: ValueKey('${video.dramaInfo?.id ?? ''}#$index'),
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index: index,
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isCurrentPage: logic.pageIndex == index,
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videoInfo: video,
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isScrolling: logic.isScrolling,
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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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