68 lines
2.1 KiB
Dart
68 lines
2.1 KiB
Dart
import 'package:cached_network_image/cached_network_image.dart';
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import 'package:flutter/material.dart';
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import 'package:media_kit_video/media_kit_video.dart';
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/// media_kit Video 包装：封面兜底、缓冲转圈、暂停态大播放图标
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///
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/// 封面仅在视频尚未渲染出第一帧时显示（player state 仍在初始 idle），
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/// 一旦 HLS 起播第一帧，封面立即淡出，避免「有声音没画面被封面挡住」。
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class VideoPlayerView extends StatelessWidget {
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const VideoPlayerView({
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super.key,
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required this.controller,
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required this.coverUrl,
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required this.playing,
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});
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final VideoController controller;
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final String coverUrl;
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final bool playing;
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@override
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Widget build(BuildContext context) {
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final player = controller.player;
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return Stack(
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fit: StackFit.expand,
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children: [
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// 播放器（无控制条，纯画面）
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Video(
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controller: controller,
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controls: NoVideoControls,
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fit: BoxFit.contain,
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),
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// 封面兜底：仅在视频尚未开始渲染时显示
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StreamBuilder<Duration>(
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stream: player.stream.position,
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initialData: player.state.position,
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builder: (_, snapshot) {
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final pos = snapshot.data ?? Duration.zero;
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// position == 0 说明还没渲染出第一帧（含初始加载和播完后）
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final showCover =
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coverUrl.isNotEmpty && pos == Duration.zero;
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return showCover
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? CachedNetworkImage(
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imageUrl: coverUrl,
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fit: BoxFit.cover,
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errorWidget: (_, __, ___) => const SizedBox.shrink(),
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)
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: const SizedBox.shrink();
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},
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),
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// 暂停态大播放图标
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if (!playing)
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const IgnorePointer(
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child: Center(
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child: Icon(
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Icons.play_arrow_rounded,
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size: 88,
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color: Colors.white70,
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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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