fix: 修正双击点赞与心形联动

lib/pages/player/widgets/home_feed_overlay.dart

@@ -107,9 +107,12 @@ class HomeFeedOverlay extends StatefulWidget {
 }
 
 class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
+  static const Duration _singleTapDelay = Duration(milliseconds: 280);
+
   bool _scrubbing = false;
   bool _wasVisibleBeforeScrub = true;
-  Offset? _doubleTapPosition;
+  Timer? _singleTapTimer;
+  DateTime? _lastTapAt;
   int _nextHeartBurstId = 0;
   final List<({int id, Offset position})> _heartBursts = [];
 
@@ -121,6 +124,12 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
     }
   }
 
+  @override
+  void dispose() {
+    _singleTapTimer?.cancel();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return SafeArea(
@@ -135,10 +144,7 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
                 child: GestureDetector(
                   key: const Key('home-feed-gesture'),
                   behavior: HitTestBehavior.opaque,
-                  onTap: _handleSurfaceTap,
-                  onDoubleTapDown: (details) =>
-                      _doubleTapPosition = details.localPosition,
-                  onDoubleTap: _handleDoubleTap,
+                  onTapUp: _handleTapUp,
                   onLongPressStart: (details) =>
                       _handleLongPressStart(details, constraints.maxWidth),
                   onLongPressEnd: (_) => widget.onBoostEnd(),
@@ -242,13 +248,28 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
     widget.onScrubEnd?.call(wasVisible);
   }
 
-  void _handleSurfaceTap() {
-    widget.onTogglePlay();
+  void _handleTapUp(TapUpDetails details) {
+    final now = DateTime.now();
+    final lastTap = _lastTapAt;
+    if (_singleTapTimer != null &&
+        lastTap != null &&
+        now.difference(lastTap) <= _singleTapDelay) {
+      _singleTapTimer?.cancel();
+      _singleTapTimer = null;
+      _lastTapAt = null;
+      _showHearts(details.localPosition);
+      return;
+    }
+    _lastTapAt = now;
+    _singleTapTimer?.cancel();
+    _singleTapTimer = Timer(_singleTapDelay, () {
+      _singleTapTimer = null;
+      _lastTapAt = null;
+      if (mounted) widget.onTogglePlay();
+    });
   }
 
-  void _handleDoubleTap() {
-    final position = _doubleTapPosition;
-    if (position == null) return;
+  void _showHearts(Offset position) {
     final id = _nextHeartBurstId++;
     setState(() => _heartBursts.add((id: id, position: position)));
     widget.onDoubleTapLike?.call(position);
@@ -260,6 +281,9 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
   }
 
   void _handleLongPressStart(LongPressStartDetails details, double width) {
+    _singleTapTimer?.cancel();
+    _singleTapTimer = null;
+    _lastTapAt = null;
     final third = width / 3;
     final dx = details.localPosition.dx;
     if (dx < third || dx > width - third) {

lib/pages/player/widgets/home_feed_recommend_panel.dart

@@ -371,6 +371,9 @@ class HomeFeedActionRail extends StatelessWidget {
             icon: liked
                 ? Icons.favorite_rounded
                 : Icons.favorite_border_rounded,
+            iconColor: liked
+                ? AppColors.doubleTapHeartRed
+                : AppColors.textPrimary,
             label: likeCount == null
                 ? l10n.like
                 : formatInteractionCount(likeCount!),
@@ -397,6 +400,7 @@ class HomeFeedActionRail extends StatelessWidget {
     required String label,
     required Key labelKey,
     required VoidCallback onTap,
+    Color iconColor = AppColors.textPrimary,
     double labelFontSize = 12,
   }) {
     return GestureDetector(
@@ -409,7 +413,7 @@ class HomeFeedActionRail extends StatelessWidget {
           Icon(
             icon,
             size: _actionIcon,
-            color: AppColors.textPrimary,
+            color: iconColor,
             shadows: const [
               Shadow(
                 color: AppColors.shadowSoft,

lib/pages/player/widgets/interaction_rail.dart

@@ -19,6 +19,7 @@ class InteractionRailItem {
     this.count,
     this.countKey,
     this.selected = false,
+    this.selectedColor = AppColors.blue,
   });
 
   final Key key;
@@ -28,6 +29,7 @@ class InteractionRailItem {
   final int? count;
   final Key? countKey;
   final bool selected;
+  final Color selectedColor;
 }
 
 /// 播放页与首页 feed 共用的右侧互动栏：收藏/评论/喜欢/分享。
@@ -71,7 +73,7 @@ class _RailButton extends StatelessWidget {
               width: _iconSize,
               height: _iconSize,
               fit: BoxFit.contain,
-              color: item.selected ? AppColors.blue : AppColors.onPrimary,
+              color: item.selected ? item.selectedColor : AppColors.onPrimary,
               colorBlendMode: BlendMode.srcIn,
             ),
           ),

lib/pages/player/widgets/player_overlay.dart

@@ -170,6 +170,7 @@ class PlayerPlaybackOverlay extends StatelessWidget {
             count: data.likeCount,
             countKey: const Key('player-rail-like-count'),
             selected: data.liked,
+            selectedColor: AppColors.doubleTapHeartRed,
             onTap: actions.onLike,
           ),
           InteractionRailItem(