fix(player): 收敛播放入口缓冲提示

docs/plans/2026-10-22-playback-entry-no-buffer.md

@@ -0,0 +1,21 @@
+# 播放入口无缓冲提示
+
+## 目标
+
+- 未初始化进度条显示静态 inactive 轨道，不出现流动加载高光。
+- 仅真实 buffering 持续超过 350ms 时显示白色高光。
+- 起播定位阶段不叠加 session 居中 loading；只有 ticket loading 居中显示。
+- 同集返回复用 controller；重建时 initialize→seek→play。
+
+## 实施步骤
+
+1. 调整 SeekProgressBar 与 _FeedProgressBar 的初始化/缓冲状态判断。
+2. 删除 PlayerView 的 session loading 居中圈，仅保留 ticket loading。
+3. preparePlayer 统一通过 VideoPlayerPort.seekTo 定位缓存位置。
+4. 更新进度条、全屏入口、详情返回和重建顺序测试。
+5. 执行 `dart analyze lib test` 与 `flutter test --no-pub`，回填 PROGRESS 后提交合并。
+
+## 风险 / 待确认
+
+- 真实持续网络卡顿仍保留缓冲高光。
+- 锁定集继续沿用静态空轨道和禁用 seek 行为。

docs/plans/PROGRESS.md

@@ -391,3 +391,38 @@ $ flutter test --no-pub
 解读：seek 完成后缓存与上报使用实际位置，越界目标被 clamp；seek 后立即
 进详情并返回仍保持目标位置。全量静态分析零告警，591 项测试全过。
 `pubspec.lock` 已还原，未启停服务，未操作真机。
+
+## 2026-10-22 播放入口无缓冲提示
+
+- 已从 Seek 修复合并后的 `develop`（`f302b39`）创建 `feature/playback-entry-no-buffer`。
+- 未初始化进度条改为静态 inactive 轨道，不显示流动高光且不可拖动。
+- 仅 initialized 且 isBuffering 持续超过 350ms 时显示白色缓冲高光。
+- PlayerView 删除 session 居中 loading，只保留 ticket loading。
+- preparePlayer 改为初始化完成后先 seek 缓存位置再 play；详情返回复用原 controller。
+
+执行命令与原始输出：
+
+```text
+$ flutter test --no-pub test/playback/seek_progress_bar_test.dart
+00:00 +7: All tests passed!
+
+$ flutter test --no-pub test/home/home_preview_layout_test.dart
+00:01 +8: All tests passed!
+
+$ flutter test --no-pub test/player/player_logic_test.dart
+00:00 +40: All tests passed!
+
+$ flutter test --no-pub test/player/player_fullscreen_test.dart
+00:09 +37: All tests passed!
+
+$ dart analyze lib test
+Analyzing lib, test...
+No issues found!
+
+$ flutter test --no-pub
+00:49 +593: All tests passed!
+```
+
+解读：短缓冲不闪、持续缓冲仍显示白色高光；未初始化/入口/返回/重建路径
+均无多余 loading，重建顺序为 initialize→seek→play。全量静态分析零告警，
+593 项测试全过。`pubspec.lock` 已还原，未启停服务，未操作真机。

lib/pages/player/player_logic.dart

@@ -677,7 +677,7 @@ class PlayerLogic extends ChangeNotifier {
       }
       final saved = resumePositionFor(episode.id);
       if (saved != null) {
-        await player.controller.seekTo(
+        await player.seekTo(
           clampResumePosition(saved, player.controller.value.duration),
         );
       }

lib/pages/player/player_view.dart

@@ -442,17 +442,6 @@ class _PlayerPageState extends State<PlayerPage>
               ),
             ),
           ),
-        if (selected && logic.session.loading)
-          const Center(
-            child: SizedBox.square(
-              dimension: _playerLoadingSize,
-              child: CircularProgressIndicator(
-                key: Key('player-session-loading'),
-                color: AppColors.blue,
-                strokeWidth: _playerLoadingStrokeWidth,
-              ),
-            ),
-          ),
         if (selected && !ready && logic.session.error != null)
           Center(
             child: Padding(

lib/pages/player/widgets/home_feed_overlay_parts.dart

@@ -79,18 +79,16 @@ class _FeedProgressBarState extends State<_FeedProgressBar> {
         final width = constraints.maxWidth;
         final source = widget.controller;
         final scrubbing = _preview != null;
-        final loading =
-            !widget.locked &&
-            (source == null ||
-                (!scrubbing && (!source.value.isInitialized || _buffering)));
+        final loading = !widget.locked && !scrubbing && _buffering;
         final track = widget.locked
             ? _inactiveTrack()
             : source == null
-            ? _loadingTrack()
+            ? _inactiveTrack()
             : ValueListenableBuilder<VideoPlayerValue>(
                 valueListenable: source,
                 builder: (context, value, _) {
-                  if (!scrubbing && (!value.isInitialized || _buffering)) {
+                  if (!value.isInitialized) return _inactiveTrack();
+                  if (!scrubbing && _buffering) {
                     return _loadingTrack();
                   }
                   final total = value.duration.inMilliseconds;
@@ -102,7 +100,10 @@ class _FeedProgressBarState extends State<_FeedProgressBar> {
                   return _track(_preview ?? played, width);
                 },
               );
-        final interactive = !widget.locked && !loading;
+        final interactive =
+            !widget.locked &&
+            !loading &&
+            (source?.value.isInitialized ?? false);
         return GestureDetector(
           key: const Key('home-feed-progress'),
           behavior: HitTestBehavior.opaque,
@@ -148,7 +149,7 @@ class _FeedProgressBarState extends State<_FeedProgressBar> {
     if (!value.isInitialized) {
       _bufferTimer?.cancel();
       _bufferTimer = null;
-      _setBuffering(true, notify: notify);
+      _setBuffering(false, notify: notify);
       return;
     }
     if (!value.isBuffering) {

lib/pages/player/widgets/seek_progress_bar.dart

@@ -114,7 +114,7 @@ class _SeekProgressBarState extends State<SeekProgressBar> {
     if (!value.isInitialized) {
       _bufferTimer?.cancel();
       _bufferTimer = null;
-      _setBuffering(true, notify: notify);
+      _setBuffering(false, notify: notify);
       return;
     }
     if (!value.isBuffering) {
@@ -181,8 +181,7 @@ class _SeekProgressBarState extends State<SeekProgressBar> {
   Widget _buildTrack(BuildContext context, VideoPlayerValue video) {
     final total = video.duration.inMilliseconds;
     final scrubbing = _previewFraction.value != null;
-    final loading =
-        !widget.locked && !scrubbing && (!video.isInitialized || _buffering);
+    final loading = !widget.locked && !scrubbing && _buffering;
     final enabled =
         !widget.locked &&
         video.isInitialized &&
@@ -223,7 +222,7 @@ class _SeekProgressBarState extends State<SeekProgressBar> {
           ),
         SizedBox(
           height: trackAreaHeight,
-          child: widget.locked
+          child: widget.locked || !video.isInitialized
               ? _inactiveTrack(trackHeight)
               : loading
               ? Center(

test/home/home_preview_layout_test.dart

@@ -180,7 +180,11 @@ void main() {
           .colorBlendMode,
       BlendMode.srcIn,
     );
-    expect(find.byKey(const Key('progress-loading')), findsOneWidget);
+    expect(find.byKey(const Key('progress-loading')), findsNothing);
+    expect(
+      find.byKey(const Key('home-feed-progress-inactive')),
+      findsOneWidget,
+    );
     expect(find.byKey(const Key('home-feed-progress-thumb')), findsNothing);
   });
 
@@ -258,6 +262,65 @@ void main() {
     expect(seeks, 0);
   });
 
+  testWidgets('should_show_static_track_when_feed_video_is_uninitialized', (
+    tester,
+  ) async {
+    final controller = ValueNotifier<VideoPlayerValue>(
+      const VideoPlayerValue.uninitialized(),
+    );
+    addTearDown(controller.dispose);
+    await tester.pumpWidget(
+      MaterialApp(
+        theme: AppTheme.light(),
+        locale: const Locale('en'),
+        supportedLocales: AppLocalizations.supportedLocales,
+        localizationsDelegates: AppLocalizations.localizationsDelegates,
+        home: Builder(
+          builder: (context) => Scaffold(
+            body: HomeFeedOverlay(
+              l10n: AppLocalizations.of(context)!,
+              drama: const Drama(
+                id: 'loading-feed',
+                title: 'Loading Feed',
+                synopsis: 'synopsis',
+                posterUrl: '',
+              ),
+              episode: const Episode(
+                id: 'loading-feed-1',
+                number: 1,
+                title: 'Loading',
+                isFree: true,
+              ),
+              controller: controller,
+              locked: false,
+              liked: false,
+              saved: false,
+              visible: true,
+              boosting: false,
+              onTogglePlay: () {},
+              onBoostStart: () {},
+              onBoostEnd: () {},
+              onLike: () {},
+              onSave: () {},
+              onComments: () {},
+              onShare: () {},
+              onDetail: () {},
+              onOpenFullPlayer: () {},
+              onMore: () {},
+              onSeek: (_) {},
+            ),
+          ),
+        ),
+      ),
+    );
+
+    expect(find.byKey(const Key('progress-loading')), findsNothing);
+    expect(
+      find.byKey(const Key('home-feed-progress-inactive')),
+      findsOneWidget,
+    );
+  });
+
   testWidgets('should_seek_and_open_player_from_feed_actions', (tester) async {
     var opened = 0;
     Duration? seeked;

test/playback/seek_progress_bar_test.dart

@@ -17,21 +17,26 @@ void main() {
     expect(seekPositionForFraction(1, duration), lessThan(duration));
   });
 
-  testWidgets('should_show_loading_track_when_controller_is_missing', (
+  testWidgets('should_show_inactive_track_when_video_is_not_initialized', (
     tester,
   ) async {
+    final video = ValueNotifier<VideoPlayerValue>(
+      const VideoPlayerValue.uninitialized(),
+    );
+    addTearDown(video.dispose);
     await tester.pumpWidget(
       MaterialApp(
         home: Scaffold(
           body: SeekProgressBar(
-            valueListenable: null,
+            valueListenable: video,
             semanticsLabel: 'Seek video',
           ),
         ),
       ),
     );
 
-    expect(find.byKey(const Key('progress-loading')), findsOneWidget);
+    expect(find.byKey(const Key('progress-loading')), findsNothing);
+    expect(find.byKey(const Key('progress-inactive')), findsOneWidget);
     expect(find.byType(Slider), findsNothing);
   });
 

test/player/player_fullscreen_test.dart

@@ -99,13 +99,8 @@ void main() {
     await tester.pump();
     await tester.pump(const Duration(milliseconds: 100));
 
-    final sessionLoading = find.byKey(const Key('player-session-loading'));
-    expect(sessionLoading, findsOneWidget);
-    expect(tester.getSize(sessionLoading), const Size(24, 24));
-    expect(
-      tester.widget<CircularProgressIndicator>(sessionLoading).strokeWidth,
-      2,
-    );
+    expect(find.byKey(const Key('player-session-loading')), findsNothing);
+    expect(find.byKey(const Key('progress-loading')), findsNothing);
 
     initialization.complete();
     await tester.pumpWidget(const SizedBox.shrink());
@@ -127,6 +122,8 @@ void main() {
     await _openSeriesPlayer(tester);
     final player = players.firstWhere((item) => item.playing);
     expect(player.playing, isTrue);
+    expect(find.byKey(const Key('progress-loading')), findsNothing);
+    expect(find.byKey(const Key('progress-inactive')), findsOneWidget);
 
     final navigator = tester.state<NavigatorState>(
       find.byType(Navigator).first,
@@ -147,6 +144,8 @@ void main() {
     await tester.pumpAndSettle();
 
     expect(player.playing, isTrue);
+    expect(find.byKey(const Key('progress-loading')), findsNothing);
+    expect(find.byKey(const Key('progress-inactive')), findsOneWidget);
   });
 
   testWidgets('should_pause_feed_when_auth_page_is_pushed_and_resume_on_pop', (
@@ -571,7 +570,8 @@ void main() {
       tester.getSize(find.byKey(const Key('player-bottom-clear-screen'))),
       const Size(40, 40),
     );
-    expect(find.byKey(const Key('progress-loading')), findsOneWidget);
+    expect(find.byKey(const Key('progress-loading')), findsNothing);
+    expect(find.byKey(const Key('progress-inactive')), findsOneWidget);
     expect(find.byType(Slider), findsNothing);
 
     expect(bottom.height, lessThanOrEqualTo(200));
@@ -1301,7 +1301,8 @@ void _expectFullscreenOverlay(WidgetTester tester) {
   expect(find.byKey(const Key('player-pip')), findsNothing);
   expect(find.byKey(const Key('player-rail-comments')), findsOneWidget);
   expect(find.byKey(const Key('player-fullscreen-toggle')), findsNothing);
-  expect(find.byKey(const Key('progress-loading')), findsOneWidget);
+  expect(find.byKey(const Key('progress-loading')), findsNothing);
+  expect(find.byKey(const Key('progress-inactive')), findsOneWidget);
   expect(find.byType(Slider), findsNothing);
   expect(find.byKey(const Key('player-title')), findsNothing);
   expect(find.byKey(const Key('player-subtitle')), findsNothing);

test/player/player_logic_test.dart

@@ -2,6 +2,8 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:video_player/video_player.dart';
+// ignore: depend_on_referenced_packages
+import 'package:video_player_platform_interface/video_player_platform_interface.dart';
 import 'package:fruitshorts/core/data/models/drama.dart';
 import 'package:fruitshorts/core/data/models/play_ticket.dart';
 import 'package:fruitshorts/core/data/models/player_port.dart';
@@ -287,6 +289,44 @@ void main() {
         await tester.pump();
       },
     );
+
+    testWidgets('should_seek_cached_position_before_play_when_rebuilding', (
+      tester,
+    ) async {
+      final previousPlatform = VideoPlayerPlatform.instance;
+      VideoPlayerPlatform.instance = _VideoPlayerPlatformStub();
+      addTearDown(() => VideoPlayerPlatform.instance = previousPlatform);
+      final cache = PlaybackPositionCache();
+      cache.save(
+        episodeId: 'signal-1',
+        dramaId: 'signal',
+        position: const Duration(seconds: 42),
+        duration: const Duration(minutes: 1),
+      );
+      final factory = _VideoRecordingFactory();
+      late PlayerLogic logic;
+      await tester.runAsync(() async {
+        logic = _logic(FakeWatchHistory(), positionCache: cache);
+        logic.attach(
+          PlayerPage(drama: _drama('signal'), initialIndex: 0),
+          isMounted: () => true,
+        );
+        logic.start(
+          factory: factory.create,
+          coordinator: PlaybackCoordinator(),
+        );
+        await _drain(logic);
+        await pumpEventQueue();
+        await logic.session.playbackSettled;
+        await logic.session.preloadSettled;
+      });
+
+      final player = logic.session.active! as _VideoRecordingPlayer;
+      expect(player.events, containsAllInOrder(['initialize', 'seek', 'play']));
+      expect(player.controller.value.position, const Duration(seconds: 42));
+      logic.dispose();
+      await tester.pump();
+    });
   });
 
   test('should_play_local_file_without_ticket_when_episode_is_downloaded',
@@ -1297,21 +1337,38 @@ class _SessionVideoSurface extends StatelessWidget {
 
 class _VideoRecordingFactory {
   final List<_VideoRecordingPlayer> created = [];
+  final List<String> events = [];
 
   PlayerPort create(Episode episode) {
-    final player = _VideoRecordingPlayer(episode);
+    final player = _VideoRecordingPlayer(episode, events);
     created.add(player);
     return player;
   }
 }
 
+class _VideoPlayerPlatformStub extends VideoPlayerPlatform {
+  @override
+  Future<void> init() async {}
+
+  @override
+  Future<void> dispose(int playerId) async {}
+
+  @override
+  Future<void> setVolume(int playerId, double volume) async {}
+
+  @override
+  Future<void> setPlaybackSpeed(int playerId, double speed) async {}
+}
+
 class _VideoRecordingPlayer extends VideoPlayerPort {
-  _VideoRecordingPlayer(super.episode);
+  _VideoRecordingPlayer(super.episode, this.events);
 
   bool disposed = false;
+  final List<String> events;
 
   @override
   Future<void> initialize() async {
+    events.add('initialize');
     controller.value = const VideoPlayerValue(
       duration: Duration(minutes: 1),
       size: Size(1280, 720),
@@ -1321,13 +1378,14 @@ class _VideoRecordingPlayer extends VideoPlayerPort {
   }
 
   @override
-  Future<void> play() async {}
+  Future<void> play() async => events.add('play');
 
   @override
-  Future<void> pause() async {}
+  Future<void> pause() async => events.add('pause');
 
   @override
   Future<void> seekTo(Duration position) async {
+    events.add('seek');
     final current = controller.value;
     controller.value = VideoPlayerValue(
       duration: current.duration,

test/player/player_open_detail_test.dart

@@ -59,6 +59,7 @@ void main() {
       final active = logic.session.active;
       final index = logic.session.currentIndex;
       final player = factory.created.first;
+      final createdBeforeDetail = factory.created.length;
       logic
         ..trackedPlayer = player
         ..trackedEpisode = drama.episodes.first
@@ -106,6 +107,7 @@ void main() {
       expect(logic.session.active, same(active));
       expect(logic.session.currentIndex, index);
       expect(logic.session.userWantsPlay, isTrue);
+      expect(factory.created, hasLength(createdBeforeDetail));
       expect(
         player.controller.value.position,
         const Duration(minutes: 1, seconds: 22),
@@ -125,6 +127,7 @@ void main() {
       expect(logic.session.active, same(active));
       expect(logic.session.currentIndex, index);
       expect(logic.session.userWantsPlay, isTrue);
+      expect(factory.created, hasLength(createdBeforeDetail));
       expect(
         player.controller.value.position,
         const Duration(minutes: 1, seconds: 22),

test/widget_test.dart

@@ -185,7 +185,8 @@ void main() {
     await tester.pumpAndSettle();
     await _openTheaterPlayer(tester);
 
-    expect(find.byKey(const Key('progress-loading')), findsOneWidget);
+    expect(find.byKey(const Key('progress-loading')), findsNothing);
+    expect(find.byKey(const Key('progress-inactive')), findsOneWidget);
     expect(find.byType(Slider), findsNothing);
     await tester.drag(find.byType(PageView), const Offset(0, -500));
     await tester.pumpAndSettle();