jianghaifeng/ReelShort
1
0 Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fix(player): 修复清晰度切换闪屏与还原黑屏

Browse Source
This commit is contained in:
Vicky authored and trae-solo-agent committed 2026-10-28 16:36:55 +08:00
1 parent 43e60e29ec
commit 85dedf20fa
8 files changed
+249 -296
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

lib/pages/player/widgets/home_feed_overlay.dart
+30 -27
View File
@@ -149,33 +149,6 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
onInteractionEnd: widget.onBoostEnd,
),
),
Positioned(
left: _pageHorizontal,
right: _railRight,
bottom: _bottomInfoInset,
child: AnimatedOpacity(
key: const Key('home-feed-content-opacity'),
duration: _overlayFadeDuration,
opacity: widget.visible && !_scrubbing && !widget.boosting
? 1
: 0,
child: IgnorePointer(
key: const Key('home-feed-content-ignore'),
ignoring: !widget.visible || _scrubbing || widget.boosting,
child: Row(
crossAxisAlignment: CrossAxisAlignment.end,
children: [
Expanded(child: _bottomInfo()),
const SizedBox(width: _railGap),
Padding(
padding: const EdgeInsets.only(bottom: _railBottomOffset),
child: _rail(),
),
],
),
),
),
),
Positioned(
left: 0,
right: 0,
@@ -227,6 +200,36 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
),
),
),
// 信息面板放在最后（最上层）：进度条 32px 触控盒向上伸进底部避让区，
// 若面板在前，简介/展开按钮底部的触控留白会被进度条吞掉点击。
// 视觉上避让条带为空，提层不改变观感。
Positioned(
left: _pageHorizontal,
right: _railRight,
bottom: _bottomInfoInset,
child: AnimatedOpacity(
key: const Key('home-feed-content-opacity'),
duration: _overlayFadeDuration,
opacity: widget.visible && !_scrubbing && !widget.boosting
? 1
: 0,
child: IgnorePointer(
key: const Key('home-feed-content-ignore'),
ignoring: !widget.visible || _scrubbing || widget.boosting,
child: Row(
crossAxisAlignment: CrossAxisAlignment.end,
children: [
Expanded(child: _bottomInfo()),
const SizedBox(width: _railGap),
Padding(
padding: const EdgeInsets.only(bottom: _railBottomOffset),
child: _rail(),
),
],
),
),
),
),
],
),
);
lib/pages/player/widgets/home_feed_recommend_panel.dart
+74 -47
View File
@@ -10,9 +10,9 @@ import '../../../l10n/app_localizations.dart';
import '../../home/widgets/home_drama_classification.dart';
import 'interaction_rail.dart';
const double _seriesFont = 21;
const double _tagFont = 14;
const double _synopsisFont = 15;
const double _seriesFont = 17;
const double _tagFont = 12;
const double _synopsisFont = 14;
const double _watchAllHeight = 44;
const List<Shadow> _textShadows = [
Shadow(color: AppColors.shadow, blurRadius: 6, offset: Offset(0, 1)),
@@ -90,7 +90,7 @@ class _HomeFeedInfoPanelState extends State<HomeFeedInfoPanel> {
style: const TextStyle(
color: AppColors.textPrimary,
fontSize: _seriesFont,
fontWeight: FontWeight.w700,
fontWeight: FontWeight.w400,
shadows: _textShadows,
),
),
@@ -98,7 +98,7 @@ class _HomeFeedInfoPanelState extends State<HomeFeedInfoPanel> {
const SizedBox(width: 2),
const Icon(
Icons.chevron_right_rounded,
size: 20,
size: 18,
color: AppColors.textPrimary,
),
],
@@ -127,13 +127,13 @@ class _HomeFeedInfoPanelState extends State<HomeFeedInfoPanel> {
];
return SizedBox(
key: const Key('home-feed-tags'),
height: 25,
height: 22,
child: ListView.separated(
scrollDirection: Axis.horizontal,
physics: const NeverScrollableScrollPhysics(),
physics: const BouncingScrollPhysics(),
shrinkWrap: true,
itemCount: chips.length,
separatorBuilder: (_, _) => const SizedBox(width: 8),
separatorBuilder: (_, _) => const SizedBox(width: 6),
itemBuilder: (_, index) => chips[index],
),
);
@@ -151,7 +151,15 @@ class _HomeFeedInfoPanelState extends State<HomeFeedInfoPanel> {
children: [
TextSpan(
text: prefix,
style: baseStyle.copyWith(fontWeight: FontWeight.w600),
style: baseStyle,
),
TextSpan(
text: ' | ',
style: baseStyle.copyWith(
color: AppColors.textPrimary.withValues(alpha: 0.45),
fontSize: _synopsisFont - 2,
fontWeight: FontWeight.w400,
),
),
TextSpan(text: synopsis, style: baseStyle),
],
@@ -164,6 +172,7 @@ class _HomeFeedInfoPanelState extends State<HomeFeedInfoPanel> {
final toggle = _synopsisToggle(
key: const Key('home-feed-synopsis-more'),
label: l10n.expandSynopsis,
padding: const EdgeInsets.only(left: 6),
);
final painter = TextPainter(
text: span,
@@ -180,21 +189,28 @@ class _HomeFeedInfoPanelState extends State<HomeFeedInfoPanel> {
);
}
// 设计稿：单行省略号 + 行内固定「展开」。
return Row(
key: const Key('home-feed-synopsis-collapsed'),
children: [
Expanded(
child: Text.rich(
span,
key: const Key('home-feed-synopsis'),
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: baseStyle,
// 整行可点：真机上不必精确命中两个小字，点简介任意位置都能展开。
return GestureDetector(
behavior: HitTestBehavior.opaque,
onTap: () => setState(() => _synopsisExpanded = true),
child: Row(
key: const Key('home-feed-synopsis-collapsed'),
// 顶对齐：文字位置不变，toggle 的 bottom 留白把触控区向下扩到空白处。
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Expanded(
child: Text.rich(
span,
key: const Key('home-feed-synopsis'),
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: baseStyle,
),
),
),
const SizedBox(width: 2),
toggle,
],
const SizedBox(width: 2),
toggle,
],
),
);
},
);
@@ -205,38 +221,50 @@ class _HomeFeedInfoPanelState extends State<HomeFeedInfoPanel> {
TextStyle style,
AppLocalizations l10n,
) {
return Column(
key: const Key('home-feed-synopsis-expanded'),
crossAxisAlignment: CrossAxisAlignment.start,
// 「收起」内联在简介最后一行末尾，避免独占一行导致多行简介与进度条间
// 出现大片空白；垂直方向只留少量触控留白（仅撑高最后一行）。
final expandedSpan = TextSpan(
style: style,
children: [
Text.rich(
span,
key: const Key('home-feed-synopsis'),
style: style,
),
const SizedBox(height: 2),
Align(
alignment: Alignment.centerRight,
span,
WidgetSpan(
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
child: _synopsisToggle(
key: const Key('home-feed-synopsis-more'),
label: l10n.showLess,
padding: const EdgeInsets.only(left: 8),
),
),
],
);
return Text.rich(
expandedSpan,
key: const Key('home-feed-synopsis-expanded'),
);
}
Widget _synopsisToggle({required Key key, required String label}) {
Widget _synopsisToggle({
required Key key,
required String label,
required EdgeInsets padding,
}) {
return GestureDetector(
key: key,
// opaque + 留白扩大命中区；留白方向由调用方决定，
// 展开态不能加 top padding，否则「收起」距简介正文过远。
behavior: HitTestBehavior.opaque,
onTap: () => setState(() => _synopsisExpanded = !_synopsisExpanded),
child: Text(
label,
style: const TextStyle(
color: AppColors.textPrimary,
fontSize: _synopsisFont,
fontWeight: FontWeight.w600,
shadows: _textShadows,
child: Padding(
padding: padding,
child: Text(
label,
style: const TextStyle(
color: AppColors.textPrimary,
fontSize: _synopsisFont,
fontWeight: FontWeight.w600,
shadows: _textShadows,
),
),
),
);
@@ -317,7 +345,7 @@ class _TagChip extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Container(
padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 2),
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
alignment: Alignment.center,
decoration: BoxDecoration(
color: filled
@@ -426,11 +454,11 @@ class HomeFeedActionRail extends StatelessWidget {
Widget build(BuildContext context) {
final l10n = AppLocalizations.of(context)!;
return InteractionRail(
itemGap: 18,
itemGap: 12,
buttonSize: 48,
iconSize: 36,
countFontSize: 15,
iconCountGap: 6,
iconCountGap: 2,
items: [
InteractionRailItem(
key: const Key('rail-save'),
@@ -462,8 +490,7 @@ class HomeFeedActionRail extends StatelessWidget {
),
InteractionRailItem(
key: const Key('rail-share'),
icon: Icons.reply_rounded,
mirrorIcon: true,
asset: 'assets/icon/rail/rail_share.png',
label: l10n.share,
countKey: const Key('rail-share-label'),
onTap: onShare,
lib/pages/player/widgets/player_overlay.dart
+7 -3
View File
@@ -158,16 +158,20 @@ class PlayerPlaybackOverlay extends StatelessWidget {
}
Widget _rail(BuildContext context) {
final compact = MediaQuery.sizeOf(context).height < 700;
return Positioned(
right: AppDimens.spaceMd,
top: MediaQuery.sizeOf(context).height * (compact ? 0.30 : 0.43),
// 底部锚定：无论屏幕高矮，始终悬在进度条上方，不会压到进度条。
bottom: 120,
child: IgnorePointer(
ignoring: scrubbing,
child: Opacity(
opacity: scrubbing ? 0 : 1,
child: InteractionRail(
key: const Key('player-interaction-rail'),
itemGap: 12,
buttonSize: 48,
iconSize: 36,
countFontSize: 15,
items: [
InteractionRailItem(
key: const Key('player-rail-save'),
@@ -336,7 +340,7 @@ class PlayerPlaybackOverlay extends StatelessWidget {
color: AppColors.onPrimary,
fontFamily: 'Outfit',
fontSize: 18,
fontWeight: FontWeight.w800,
fontWeight: FontWeight.w400,
shadows: _playerTextShadows,
),
),
lib/pages/player/widgets/player_overlay_parts.dart
+95 -218
View File
@@ -131,9 +131,9 @@ class _EpisodeSynopsisState extends State<_EpisodeSynopsis> {
int _detailRequest = 0;
bool _detailRequested = false;
/// 「第 n 集」、分隔符与简介正文共用同一套灰字规格。
/// 「第 n 集」、分隔符与简介正文共用同一套白字规格。
static const TextStyle _lineStyle = TextStyle(
color: AppColors.playerMuted,
color: AppColors.onPrimary,
fontSize: 12,
fontWeight: FontWeight.w500,
height: 1.35,
@@ -142,13 +142,10 @@ class _EpisodeSynopsisState extends State<_EpisodeSynopsis> {
static const TextStyle _linkStyle = TextStyle(
color: AppColors.textPrimary,
fontSize: 12,
fontWeight: FontWeight.w700,
fontWeight: FontWeight.w600,
shadows: _playerTextShadows,
);
static const int _collapsedMaxLines = 2;
static const double _expandGap = 6;
static const double _expandTrailing = 28;
static const double _separatorGap = 6;
String get _synopsis => _fullSynopsis ?? widget.synopsis;
@@ -200,236 +197,116 @@ class _EpisodeSynopsisState extends State<_EpisodeSynopsis> {
);
}
/// 与首页推荐 feed 的简介展开/收起保持一致：
/// 折叠单行省略 + 行尾「展开」（整行可点）；展开后内联「收起」。
Widget _block(double maxWidth) {
final label = widget.l10n.episodeLabel(widget.episodeNumber);
if (_expanded) return _expandedBlock(label, maxWidth);
return _collapsedBlock(label, maxWidth);
final span = TextSpan(
style: _lineStyle,
children: [
TextSpan(text: label, style: _lineStyle),
_separatorSpan(),
TextSpan(text: _synopsis, style: _lineStyle),
],
);
if (_expanded) return _expandedBlock(span);
final painter = TextPainter(
text: span,
maxLines: 1,
textDirection: Directionality.of(context),
textScaler: MediaQuery.textScalerOf(context),
)..layout(maxWidth: maxWidth);
if (!painter.didExceedMaxLines) {
return Text.rich(
span,
key: const Key('player-synopsis'),
maxLines: 1,
style: _lineStyle,
);
}
return GestureDetector(
behavior: HitTestBehavior.opaque,
onTap: () => setState(() => _expanded = true),
child: Row(
key: const Key('player-synopsis-collapsed'),
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Expanded(
child: Text.rich(
span,
key: const Key('player-synopsis'),
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: _lineStyle,
),
),
const SizedBox(width: 2),
_toggle(widget.l10n.expandSynopsis,
padding: const EdgeInsets.only(left: 6)),
],
),
);
}
Widget _collapsedBlock(String label, double maxWidth) {
final link = widget.l10n.expandSynopsis;
final body = _collapsedBody(label, maxWidth, link);
final text = _synopsisText(label, body, link: null, expanded: false);
if (body == _synopsis) return text;
final caret = _caret(label, body, maxWidth);
return Stack(
clipBehavior: Clip.none,
Widget _expandedBlock(InlineSpan span) {
final expandedSpan = TextSpan(
style: _lineStyle,
children: [
text,
Positioned(
left: caret.dx,
top: caret.dy,
child: Padding(
key: const Key('player-synopsis-gap'),
padding: const EdgeInsets.only(left: _expandGap),
child: _toggle(link),
span,
WidgetSpan(
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
child: _toggle(
widget.l10n.showLess,
padding: const EdgeInsets.only(left: 8),
),
),
],
);
}
Widget _expandedBlock(String label, double maxWidth) {
return SizedBox(
width: maxWidth,
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
_synopsisText(label, _synopsis, link: null, expanded: true),
Align(
alignment: Alignment.centerRight,
child: _toggle(widget.l10n.showLess),
),
if (widget.authorNote.isNotEmpty) ...[
const SizedBox(height: 4),
Text(
widget.authorNote,
key: const Key('player-author-note'),
maxLines: _collapsedMaxLines,
overflow: TextOverflow.ellipsis,
style: const TextStyle(
color: AppColors.playerMuted,
fontSize: 10,
shadows: _playerTextShadows,
),
return Column(
key: const Key('player-synopsis-expanded'),
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text.rich(expandedSpan, key: const Key('player-synopsis')),
if (widget.authorNote.isNotEmpty) ...[
const SizedBox(height: 4),
Text(
widget.authorNote,
key: const Key('player-author-note'),
maxLines: _collapsedMaxLines,
overflow: TextOverflow.ellipsis,
style: const TextStyle(
color: AppColors.playerMuted,
fontSize: 10,
shadows: _playerTextShadows,
),
],
),
],
),
],
);
}
Widget _synopsisText(
String label,
String body, {
required String? link,
required bool expanded,
}) {
return Text.rich(
TextSpan(
style: _lineStyle,
children: _spans(label, body, link),
),
key: const Key('player-synopsis'),
style: _lineStyle,
maxLines: expanded ? null : _collapsedMaxLines,
overflow: expanded ? TextOverflow.clip : TextOverflow.ellipsis,
);
}
List<InlineSpan> _spans(String label, String body, String? link) {
return [
WidgetSpan(
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
child: Text(
label,
key: const Key('player-episode-label'),
style: _lineStyle,
/// 分隔竖线：同字号 w400 + 45% 透明白，靠两侧空格留白。
/// 必须用 TextSpan：WidgetSpan 占位盒的基线对齐会让第n集与简介错位。
TextSpan _separatorSpan() => TextSpan(
text: ' | ',
style: _lineStyle.copyWith(
color: AppColors.onPrimary.withValues(alpha: 0.45),
fontWeight: FontWeight.w400,
),
),
WidgetSpan(
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: _separatorGap),
child: Text(
'|',
style: _lineStyle.copyWith(
color: AppColors.playerMuted.withValues(alpha: 0.6),
),
),
),
),
TextSpan(text: body, style: _lineStyle),
if (link != null)
WidgetSpan(
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
child: Padding(
key: const Key('player-synopsis-gap'),
padding: const EdgeInsets.only(left: _expandGap),
child: _toggle(link),
),
),
];
}
);
String _collapsedBody(String label, double maxWidth, String link) {
if (_fits(label, _synopsis, maxWidth, reserve: 0)) {
return _synopsis;
}
final reserve =
_textWidth(link, _linkStyle) + _expandGap + _expandTrailing;
var low = 0;
var high = _synopsis.length;
var best = '…';
while (low <= high) {
final mid = (low + high) >> 1;
final slice = '${_synopsis.substring(0, mid)}…';
if (_fits(label, slice, maxWidth, reserve: reserve)) {
best = slice;
low = mid + 1;
} else {
high = mid - 1;
}
}
return best;
}
bool _fits(
String label,
String body,
double maxWidth, {
required double reserve,
}) {
final painter = TextPainter(
text: TextSpan(
children: [
TextSpan(text: label, style: _lineStyle),
const WidgetSpan(
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
child: SizedBox(width: _separatorGap),
),
TextSpan(
text: '|',
style: _lineStyle.copyWith(
color: AppColors.playerMuted.withValues(alpha: 0.6),
),
),
const WidgetSpan(
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
child: SizedBox(width: _separatorGap),
),
TextSpan(text: body, style: _lineStyle),
if (reserve > 0)
WidgetSpan(
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
child: SizedBox(width: reserve),
),
],
),
maxLines: _collapsedMaxLines,
textDirection: TextDirection.ltr,
);
painter.setPlaceholderDimensions(_slots(reserve));
painter.layout(maxWidth: maxWidth);
return !painter.didExceedMaxLines;
}
List<PlaceholderDimensions> _slots(double reserve) {
return [
const PlaceholderDimensions(
size: Size(_separatorGap, 1),
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
),
const PlaceholderDimensions(
size: Size(_separatorGap, 1),
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
),
if (reserve > 0)
PlaceholderDimensions(
size: Size(reserve, _lineStyle.fontSize ?? 12),
alignment: PlaceholderAlignment.baseline,
baseline: TextBaseline.alphabetic,
),
];
}
Offset _caret(String label, String body, double maxWidth) {
final painter = TextPainter(
text: TextSpan(children: _spans(label, body, null)),
maxLines: _collapsedMaxLines,
textDirection: TextDirection.ltr,
);
painter.setPlaceholderDimensions(_slots(0));
painter.layout(maxWidth: maxWidth);
return painter.getOffsetForCaret(
TextPosition(offset: painter.plainText.length),
Rect.zero,
);
}
double _textWidth(String text, TextStyle style) {
final painter = TextPainter(
text: TextSpan(text: text, style: style),
maxLines: 1,
textDirection: TextDirection.ltr,
)..layout();
return painter.width;
}
Widget _toggle(String label) {
return InkWell(
Widget _toggle(String label, {required EdgeInsets padding}) {
return GestureDetector(
key: const Key('player-synopsis-toggle'),
behavior: HitTestBehavior.opaque,
onTap: () => setState(() => _expanded = !_expanded),
borderRadius: BorderRadius.circular(4),
child: Text(label, maxLines: 1, style: _linkStyle),
child: Padding(
padding: padding,
child: Text(label, maxLines: 1, style: _linkStyle),
),
);
}
}
lib/pages/player/widgets/player_render_stack.dart
+5
View File
@@ -53,12 +53,16 @@ class PlayerRenderStack extends StatefulWidget {
required this.pageController,
required this.slots,
this.onCurrentVideoVisible,
this.resumeSignal = 0,
});
final PageController pageController;
final Map<PlayerRenderSlotRole, PlayerRenderSlotData> slots;
final ValueChanged<int?>? onCurrentVideoVisible;
/// iOS 画中画还原的恢复信号，透传给每个槽位的视频表面。
final int resumeSignal;
@override
State<PlayerRenderStack> createState() => _PlayerRenderStackState();
}
@@ -200,6 +204,7 @@ class _PlayerRenderStackState extends State<PlayerRenderStack> {
onVideoVisible: slot.role == PlayerRenderSlotRole.current
? () => widget.onCurrentVideoVisible?.call(slot.index)
: null,
resumeSignal: widget.resumeSignal,
),
),
);
lib/pages/player/widgets/player_video_surface.dart
+29
View File
@@ -29,6 +29,7 @@ class PlayerVideoSurface extends StatefulWidget {
this.debugIndex,
this.showFallbackBackground = true,
this.onVideoVisible,
this.resumeSignal = 0,
});
final VideoPlayerController? controller;
@@ -60,6 +61,10 @@ class PlayerVideoSurface extends StatefulWidget {
final bool theater;
final VoidCallback? onVideoVisible;
/// iOS 画中画还原等场景的恢复信号：数值变化时回退到占位并重新等首帧，
/// 避免纹理被系统回收后显示黑屏（封面占位 → 新帧淡入）。
final int resumeSignal;
@override
State<PlayerVideoSurface> createState() => _PlayerVideoSurfaceState();
}
@@ -76,6 +81,11 @@ class _PlayerVideoSurfaceState extends State<PlayerVideoSurface>
bool _transitioning = false;
bool _videoVisible = false;
bool _videoVisibleNotified = false;
/// 清晰度切换时新源 seek 后的进度；position 越过它才认定纹理已有画面。
Duration? _confirmBasePosition;
/// 画中画还原等场景的首帧确认下限时刻：position 可能一拍就过基准，
/// 但纹理出帧滞后于进度观测，淡入前强制等待一小段真实解码时间。
DateTime? _confirmNotBefore;
String? _lastLayerState;
@override
@@ -99,6 +109,13 @@ class _PlayerVideoSurfaceState extends State<PlayerVideoSurface>
@override
void didUpdateWidget(covariant PlayerVideoSurface oldWidget) {
super.didUpdateWidget(oldWidget);
if (oldWidget.resumeSignal != widget.resumeSignal) {
_logSlot('pip-resume-reset', widget.controller?.value);
_resetForControllerChange();
_confirmNotBefore = DateTime.now().add(const Duration(milliseconds: 450));
setState(() {});
if (oldWidget.controller == widget.controller) return;
}
if (oldWidget.controller != widget.controller) {
_logSlot('controller-change-before', oldWidget.controller?.value);
_detachController(oldWidget.controller);
@@ -261,6 +278,16 @@ class _PlayerVideoSurfaceState extends State<PlayerVideoSurface>
return false;
}
if (widget.warmFrameAvailable || !widget.waitForPlaybackFrame) return true;
// 清晰度切换：新源 seek 完成后 position 立即大于 0，但不代表纹理已有
// 画面；等 position 越过切换时刻的值（解码循环已在出帧）再确认，避免闪黑。
final base = _confirmBasePosition;
if (base != null) {
final notBefore = _confirmNotBefore;
if (notBefore != null && DateTime.now().isBefore(notBefore)) {
return false;
}
return value.position > base || value.isCompleted;
}
if (value.position > Duration.zero || value.isCompleted) return true;
return _playbackStarted && !value.isPlaying && !value.isBuffering;
}
@@ -321,6 +348,8 @@ class _PlayerVideoSurfaceState extends State<PlayerVideoSurface>
_videoVisible = false;
_videoVisibleNotified = false;
_lastLayerState = null;
// 记录新源切换时刻的进度，供首帧确认判断 position 是否已前进。
_confirmBasePosition = widget.controller?.value.position;
}
void _notifyVideoVisible() {