fix(player): 延长飘心并显示毫秒计时

lib/pages/player/widgets/player_tap_gesture_region.dart

@@ -2,6 +2,7 @@
 
 import 'dart:async';
 
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import 'player_double_tap_hearts.dart';
@@ -47,12 +48,18 @@ class _PlayerTapGestureRegionState extends State<PlayerTapGestureRegion> {
   int _downSerial = 0;
   int _tapSeq = 0;
   int _nextHeartBurstId = 0;
-  final List<({int id, Offset position})> _heartBursts = [];
+  final Map<int, OverlayEntry> _heartOverlayEntries = {};
 
   @override
   void dispose() {
     _tapSeq++;
     _singleTapTimer?.cancel();
+    for (final entry in _heartOverlayEntries.values.toList()) {
+      entry
+        ..remove()
+        ..dispose();
+    }
+    _heartOverlayEntries.clear();
     super.dispose();
   }
 
@@ -78,25 +85,6 @@ class _PlayerTapGestureRegionState extends State<PlayerTapGestureRegion> {
                 onLongPressEnd: (_) => widget.onInteractionEnd(),
                 onLongPressCancel: widget.onInteractionEnd,
               ),
-              if (_heartBursts.isNotEmpty)
-                Positioned.fill(
-                  child: IgnorePointer(
-                    child: Stack(
-                      clipBehavior: Clip.none,
-                      children: [
-                        for (final burst in _heartBursts)
-                          Positioned(
-                            left: burst.position.dx,
-                            top: burst.position.dy - 10,
-                            child: PlayerDoubleTapHeartBurst(
-                              key: ValueKey(burst.id),
-                              onCompleted: () => _removeHeartBurst(burst.id),
-                            ),
-                          ),
-                      ],
-                    ),
-                  ),
-                ),
             ],
           ),
         ),
@@ -138,7 +126,7 @@ class _PlayerTapGestureRegionState extends State<PlayerTapGestureRegion> {
   void _handleTapUp(TapUpDetails details) {
     final now = _now();
     if (_doubleTapDown || _singleTapBlocked(now)) {
-      _handleDoubleTapLike(details.localPosition);
+      _handleDoubleTapLike(details.globalPosition);
       return;
     }
     final serial = _downSerial;
@@ -156,19 +144,48 @@ class _PlayerTapGestureRegionState extends State<PlayerTapGestureRegion> {
     _singleTapTimer = pending;
   }
 
-  void _handleDoubleTapLike(Offset position) {
+  void _handleDoubleTapLike(Offset globalPosition) {
     _blockSingleTapUntil = _now().add(_singleTapDelay);
     _cancelPendingSingleTap();
     if (!widget.doubleTapEnabled || _likedThisPair) return;
     _likedThisPair = true;
-    final id = _nextHeartBurstId++;
-    setState(() => _heartBursts.add((id: id, position: position)));
-    widget.onDoubleTapLike?.call(position);
+    _showHeartBurst(globalPosition);
+    widget.onDoubleTapLike?.call(globalPosition);
   }
 
-  void _removeHeartBurst(int id) {
-    if (!mounted) return;
-    setState(() => _heartBursts.removeWhere((burst) => burst.id == id));
+  void _showHeartBurst(Offset globalPosition) {
+    final overlay = Overlay.maybeOf(context, rootOverlay: true);
+    if (overlay == null) return;
+    final overlayBox = overlay.context.findRenderObject();
+    final origin = overlayBox is RenderBox
+        ? overlayBox.globalToLocal(globalPosition)
+        : globalPosition;
+    final id = _nextHeartBurstId++;
+    late final OverlayEntry entry;
+    entry = OverlayEntry(
+      builder: (context) => Positioned.fill(
+        child: IgnorePointer(
+          child: PlayerDoubleTapHeartBurst(
+            key: ValueKey('heart-overlay-$id'),
+            origin: origin,
+            onCompleted: () => _removeHeartOverlay(id),
+          ),
+        ),
+      ),
+    );
+    _heartOverlayEntries[id] = entry;
+    overlay.insert(entry);
+  }
+
+  void _removeHeartOverlay(int id) {
+    final entry = _heartOverlayEntries.remove(id);
+    if (entry == null) return;
+    entry
+      ..remove()
+      ..dispose();
+    if (kDebugMode) {
+      debugPrint('[player] phase=heart-burst-entry-removed id=$id');
+    }
   }
 
   void _handleLongPressStart(LongPressStartDetails details, double width) {