fix(player): 观看全集复用抓帧首屏

test/player/player_fullscreen_test.dart

@@ -246,6 +246,34 @@ void main() {
     expect(find.byKey(const Key('home-tabs-bar')), findsOneWidget);
   });
 
+  testWidgets('should_capture_feed_frame_when_opening_series_from_picker', (
+    tester,
+  ) async {
+    final factory = _RouteVideoFactory();
+    await _pumpApp(tester, playerFactory: factory.create);
+    await tester.tap(find.byKey(const Key('tab-recommend')));
+    await tester.pumpAndSettle();
+
+    await tester.tap(find.byKey(const Key('rail-episodes')));
+    await tester.pumpAndSettle();
+    await tester.tap(find.byKey(const Key('player-episode-2')));
+    await _waitForRevealedPlayerEntry(tester);
+    await tester.pumpAndSettle();
+
+    final player = find.byWidgetPredicate(
+      (widget) => widget is PlayerPage && widget.revealAfterFirstFrame,
+    );
+    expect(player, findsOneWidget);
+    final playerWidget = tester.widget<PlayerPage>(player);
+    expect(playerWidget.initialFrameBytes, isNotNull);
+    expect(playerWidget.revealAfterFirstFrame, isTrue);
+    expect(playerWidget.initialIndex, 1);
+
+    await tester.tap(find.byKey(const Key('player-back')));
+    await tester.pumpAndSettle();
+    expect(find.byKey(const Key('recommend-page')), findsOneWidget);
+  });
+
   testWidgets('should_keep_drama_and_episode_indices_separate', (tester) async {
     final factory = _RouteVideoFactory();
     await _pumpApp(tester, playerFactory: factory.create);
@@ -1675,6 +1703,24 @@ Future<void> _waitForFullPlayerEntry(WidgetTester tester) async {
   fail('full player route was not pushed after frame capture');
 }
 
+Future<void> _waitForRevealedPlayerEntry(WidgetTester tester) async {
+  for (var attempt = 0; attempt < 120; attempt++) {
+    await tester.runAsync(
+      () => Future<void>.delayed(const Duration(milliseconds: 10)),
+    );
+    await tester.pump(const Duration(milliseconds: 16));
+    if (find
+        .byWidgetPredicate(
+          (widget) => widget is PlayerPage && widget.revealAfterFirstFrame,
+        )
+        .evaluate()
+        .isNotEmpty) {
+      return;
+    }
+  }
+  fail('revealed player route was not pushed after frame capture');
+}
+
 class _RouteVideoFactory {
   final List<_RouteVideoPlayer> created = [];
   final List<Episode> episodes = [];