324 lines
12 KiB
Dart
324 lines
12 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:get/get.dart';
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import 'package:pilipala/common/skeleton/video_reply.dart';
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import 'package:pilipala/common/widgets/http_error.dart';
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import 'package:pilipala/models/common/reply_type.dart';
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import 'package:pilipala/pages/video/detail/index.dart';
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import 'package:pilipala/pages/video/detail/replyNew/index.dart';
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import 'package:pilipala/utils/id_utils.dart';
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import 'controller.dart';
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import 'widgets/reply_item.dart';
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class VideoReplyPanel extends StatefulWidget {
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final String? bvid;
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final int rpid;
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final String? replyLevel;
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const VideoReplyPanel({
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this.bvid,
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this.rpid = 0,
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this.replyLevel,
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super.key,
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});
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@override
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State<VideoReplyPanel> createState() => _VideoReplyPanelState();
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}
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class _VideoReplyPanelState extends State<VideoReplyPanel>
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with AutomaticKeepAliveClientMixin, TickerProviderStateMixin {
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late VideoReplyController _videoReplyController;
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late AnimationController fabAnimationCtr;
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Future? _futureBuilderFuture;
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bool _isFabVisible = true;
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String replyLevel = '1';
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// 添加页面缓存
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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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int oid = widget.bvid != null ? IdUtils.bv2av(widget.bvid!) : 0;
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super.initState();
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replyLevel = widget.replyLevel ?? '1';
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if (replyLevel == '2') {
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_videoReplyController = Get.put(
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VideoReplyController(oid, widget.rpid.toString(), replyLevel),
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tag: widget.rpid.toString());
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} else {
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_videoReplyController = Get.put(VideoReplyController(oid, '', replyLevel),
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tag: Get.arguments['heroTag']);
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}
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fabAnimationCtr = AnimationController(
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vsync: this, duration: const Duration(milliseconds: 300));
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_futureBuilderFuture = _videoReplyController.queryReplyList();
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_videoReplyController.scrollController.addListener(
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() {
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if (_videoReplyController.scrollController.position.pixels >=
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_videoReplyController.scrollController.position.maxScrollExtent -
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300) {
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if (!_videoReplyController.isLoadingMore) {
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_videoReplyController.onLoad();
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}
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}
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final ScrollDirection direction =
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_videoReplyController.scrollController.position.userScrollDirection;
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if (direction == ScrollDirection.forward) {
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_showFab();
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} else if (direction == ScrollDirection.reverse) {
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_hideFab();
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}
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},
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);
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fabAnimationCtr.forward();
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}
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void _showFab() {
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if (!_isFabVisible) {
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_isFabVisible = true;
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fabAnimationCtr.forward();
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}
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}
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void _hideFab() {
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if (_isFabVisible) {
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_isFabVisible = false;
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fabAnimationCtr.reverse();
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}
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}
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// 展示二级回复
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void replyReply(replyItem) {
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VideoDetailController videoDetailCtr =
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Get.find<VideoDetailController>(tag: Get.arguments['heroTag']);
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videoDetailCtr.oid = replyItem.oid;
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videoDetailCtr.fRpid = replyItem.rpid!;
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videoDetailCtr.firstFloor = replyItem;
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videoDetailCtr.showReplyReplyPanel();
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}
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@override
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void dispose() {
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super.dispose();
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fabAnimationCtr.dispose();
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_videoReplyController.scrollController.dispose();
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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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return RefreshIndicator(
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onRefresh: () async {
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_videoReplyController.currentPage = 0;
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return await _videoReplyController.queryReplyList();
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},
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child: Stack(
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children: [
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CustomScrollView(
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controller: _videoReplyController.scrollController,
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key: const PageStorageKey<String>('评论'),
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slivers: <Widget>[
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SliverPersistentHeader(
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pinned: false,
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floating: true,
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delegate: _MySliverPersistentHeaderDelegate(
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child: Container(
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height: 45,
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padding: const EdgeInsets.fromLTRB(12, 0, 6, 0),
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decoration: BoxDecoration(
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color: Theme.of(context).colorScheme.background,
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border: Border(
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bottom: BorderSide(
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color: Theme.of(context)
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.colorScheme
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.outline
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.withOpacity(0.1)),
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),
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),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Obx(
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() => AnimatedSwitcher(
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duration: const Duration(milliseconds: 400),
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transitionBuilder:
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(Widget child, Animation<double> animation) {
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return ScaleTransition(
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scale: animation, child: child);
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},
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child: Text(
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_videoReplyController.sortTypeTitle.value,
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key: ValueKey<String>(
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_videoReplyController.sortTypeTitle.value),
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),
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),
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),
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SizedBox(
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height: 35,
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child: TextButton.icon(
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onPressed: () =>
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_videoReplyController.queryBySort(),
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icon: const Icon(Icons.sort, size: 15),
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label: Obx(() => Text(
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_videoReplyController.sortTypeLabel.value,
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style: const TextStyle(fontSize: 12),
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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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FutureBuilder(
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future: _futureBuilderFuture,
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builder: (context, snapshot) {
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if (snapshot.connectionState == ConnectionState.done) {
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Map data = snapshot.data as Map;
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if (data['status']) {
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// 请求成功
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return Obx(
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() => _videoReplyController.replyList.isEmpty
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? SliverList(
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delegate: SliverChildBuilderDelegate(
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(context, index) {
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return const VideoReplySkeleton();
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}, childCount: 5),
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)
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: SliverList(
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delegate: SliverChildBuilderDelegate(
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(context, index) {
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double bottom =
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MediaQuery.of(context).padding.bottom;
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if (index ==
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_videoReplyController
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.replyList.length) {
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return Container(
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padding:
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EdgeInsets.only(bottom: bottom),
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height: bottom + 100,
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child: Center(
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child: Obx(() => Text(
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_videoReplyController
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.noMore.value)),
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),
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);
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} else {
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return ReplyItem(
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replyItem: _videoReplyController
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.replyList[index],
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showReplyRow: true,
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replyLevel: replyLevel,
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replyReply: (replyItem) =>
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replyReply(replyItem),
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replyType: ReplyType.video,
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);
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}
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},
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childCount:
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_videoReplyController.replyList.length +
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1,
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),
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),
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);
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} else {
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// 请求错误
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return HttpError(
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errMsg: data['msg'],
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fn: () => setState(() {}),
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);
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}
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} else {
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// 骨架屏
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return SliverList(
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delegate: SliverChildBuilderDelegate((context, index) {
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return const VideoReplySkeleton();
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}, childCount: 5),
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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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Positioned(
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bottom: MediaQuery.of(context).padding.bottom + 14,
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right: 14,
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child: SlideTransition(
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position: Tween<Offset>(
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begin: const Offset(0, 2),
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end: const Offset(0, 0),
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).animate(CurvedAnimation(
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parent: fabAnimationCtr,
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curve: Curves.easeInOut,
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)),
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child: FloatingActionButton(
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heroTag: null,
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onPressed: () {
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showModalBottomSheet(
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context: context,
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isScrollControlled: true,
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builder: (BuildContext context) {
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return VideoReplyNewDialog(
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oid: IdUtils.bv2av(Get.parameters['bvid']!),
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root: 0,
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parent: 0,
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replyType: ReplyType.video,
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);
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},
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).then(
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(value) => {
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// 完成评论，数据添加
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if (value != null && value['data'] != null)
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{_videoReplyController.replyList.add(value['data'])}
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},
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);
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},
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tooltip: '发表评论',
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child: const Icon(Icons.reply),
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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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class _MySliverPersistentHeaderDelegate extends SliverPersistentHeaderDelegate {
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final double _minExtent = 45;
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final double _maxExtent = 45;
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final Widget child;
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_MySliverPersistentHeaderDelegate({required this.child});
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@override
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Widget build(
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BuildContext context, double shrinkOffset, bool overlapsContent) {
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//创建child子组件
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//shrinkOffset：child偏移值minExtent~maxExtent
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//overlapsContent：SliverPersistentHeader覆盖其他子组件返回true，否则返回false
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return child;
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}
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//SliverPersistentHeader最大高度
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@override
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double get maxExtent => _maxExtent;
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//SliverPersistentHeader最小高度
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@override
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double get minExtent => _minExtent;
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@override
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bool shouldRebuild(covariant _MySliverPersistentHeaderDelegate oldDelegate) {
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return true;
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}
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}
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