up

app/lib/providers/feed_provider.dart

@@ -151,6 +151,7 @@ class FeedNotifier extends StateNotifier<FeedState> {
   /// 翻页：滑出即暂停、滑入自动播放并上报观看计费（《01-开发文档》5.3）
   void onPageChanged(int index) {
     state = state.copyWith(currentIndex: index);
+    // fire-and-forget：Future 内部会完整 await bindWindow 再 play，调用方不等
     _bindAndReport(index);
     // 接近尾部预取下一页
     if (index >= state.items.length - 3) loadMore();
@@ -160,7 +161,7 @@ class FeedNotifier extends StateNotifier<FeedState> {
   Future<void> _bindAndReport(int index) async {
     if (index < 0 || index >= state.items.length) return;
     final items = state.items;
-    pool.bindWindow(
+    await pool.bindWindow(
       index,
       [for (final v in items) (videoId: v.videoId, url: resolvePlayUrl(v))],
     );