feat: 增加播放器双击点赞与飘心

docs/plans/PROGRESS.md

@@ -1294,3 +1294,9 @@ $ flutter test
 - 首页榜单 tab 改为独立领奖台 + 单列排行布局，不再复用三列网格。
 - 前三名按 2/1/3 排列，冠军放大并上移；第 4 名起使用大号描边名次与横向信息行。
 - 榜单沿用现有播放热度排序、分页和播放逻辑；`flutter analyze`：No issues found。
+
+## 2026-10-22 播放器双击点赞与飘心
+
+- 沉浸式播放手势增加原生双击识别，双击优先于单击暂停，长按左右倍速与中间更多保持不变。
+- 双击仅对未点赞剧集调用现有点赞接口，已点赞或请求中只播动画；触发轻震动并在失败时回滚提示。
+- 飘心层使用独立 IgnorePointer Stack，动画完成后自动移除；`flutter analyze`：No issues found。

lib/core/theme/app_colors.dart

@@ -60,6 +60,8 @@ abstract final class AppColors {
 
   /// 收藏与喜欢（非主色铺色，独立强调）。
   static const favorite = Color(0xFFFF6A8A);
+  static const doubleTapHeartRed = Color(0xFFFF4D6D);
+  static const doubleTapHeartPink = Color(0xFFFF7A9A);
 
   /// 金币底色上的文字。
   static const onGold = Color(0xFF3D2408);

lib/pages/player/player_view.dart

@@ -24,6 +24,7 @@ import '../../core/platform/haptics.dart';
 import '../../core/theme/app_colors.dart';
 import '../../core/theme/app_theme.dart';
 import '../../core/widgets/auth_gate.dart';
+import '../../core/widgets/centered_toast.dart';
 import '../../core/widgets/download_action.dart';
 import '../../l10n/app_localizations.dart';
 import '../home/home_feed_channel.dart';
@@ -655,6 +656,8 @@ class _PlayerPageState extends State<PlayerPage>
                 }
               }
             },
+            onDoubleTapLike: (_) =>
+                unawaited(_likeFromDoubleTap(context, interactions, episode)),
             onSave: () => unawaited(_toggleSave(context, drama)),
             onComments: () => unawaited(_openComments(context, drama, episode)),
             onShare: () => logic.shareDrama(context, drama),

lib/pages/player/player_view_actions.dart

@@ -96,6 +96,29 @@ extension _PlayerViewActions on _PlayerPageState {
     );
   }
 
+  Future<void> _likeFromDoubleTap(
+    BuildContext context,
+    InteractionController interactions,
+    Episode episode,
+  ) async {
+    unawaited(context.read<Haptics>().lightImpact());
+    if (interactions.isEpisodeLiked(episode.id) ||
+        interactions.isEpisodeBusy(episode.id)) {
+      return;
+    }
+    if (!await ensureSignedIn(context) || !context.mounted) return;
+    if (interactions.isEpisodeLiked(episode.id) ||
+        interactions.isEpisodeBusy(episode.id)) {
+      return;
+    }
+    final result = await interactions.toggleEpisodeLike(episode.id);
+    if (result.isSuccess || !context.mounted) return;
+    showCenteredToast(
+      context,
+      result.errorMessage ?? AppLocalizations.of(context)!.likeFailed,
+    );
+  }
+
   Future<void> _toggleSave(BuildContext context, Drama drama) async {
     final favorites = context.read<FavoriteController>();
     if (!await ensureSignedIn(context) || !context.mounted) return;

lib/pages/player/widgets/home_feed_overlay.dart

@@ -14,6 +14,7 @@ import '../../../core/theme/app_colors.dart';
 import '../../../l10n/app_localizations.dart';
 import 'home_feed_recommend_panel.dart';
 import 'loading_progress_track.dart';
+import 'player_double_tap_hearts.dart';
 import 'seek_progress_bar.dart';
 
 part 'home_feed_overlay_parts.dart';
@@ -54,6 +55,7 @@ class HomeFeedOverlay extends StatefulWidget {
     required this.onBoostStart,
     required this.onBoostEnd,
     required this.onMore,
+    this.onDoubleTapLike,
     this.likeCount,
     this.favoriteCount,
     this.commentCount,
@@ -91,6 +93,7 @@ class HomeFeedOverlay extends StatefulWidget {
   final VoidCallback onBoostStart;
   final VoidCallback onBoostEnd;
   final VoidCallback onMore;
+  final ValueChanged<Offset>? onDoubleTapLike;
   final VoidCallback? onScrubStart;
   final ValueChanged<bool>? onScrubEnd;
   final ValueChanged<bool>? onScrubVisibilityChanged;
@@ -106,6 +109,9 @@ class HomeFeedOverlay extends StatefulWidget {
 class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
   bool _scrubbing = false;
   bool _wasVisibleBeforeScrub = true;
+  Offset? _doubleTapPosition;
+  int _nextHeartBurstId = 0;
+  final List<({int id, Offset position})> _heartBursts = [];
 
   @override
   void didUpdateWidget(covariant HomeFeedOverlay oldWidget) {
@@ -130,6 +136,9 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
                   key: const Key('home-feed-gesture'),
                   behavior: HitTestBehavior.opaque,
                   onTap: _handleSurfaceTap,
+                  onDoubleTapDown: (details) =>
+                      _doubleTapPosition = details.localPosition,
+                  onDoubleTap: _handleDoubleTap,
                   onLongPressStart: (details) =>
                       _handleLongPressStart(details, constraints.maxWidth),
                   onLongPressEnd: (_) => widget.onBoostEnd(),
@@ -193,6 +202,25 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
               onSeek: widget.onSeek,
             ),
           ),
+          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),
+                        ),
+                      ),
+                  ],
+                ),
+              ),
+            ),
         ],
       ),
     );
@@ -218,6 +246,19 @@ class _HomeFeedOverlayState extends State<HomeFeedOverlay> {
     widget.onTogglePlay();
   }
 
+  void _handleDoubleTap() {
+    final position = _doubleTapPosition;
+    if (position == null) return;
+    final id = _nextHeartBurstId++;
+    setState(() => _heartBursts.add((id: id, position: position)));
+    widget.onDoubleTapLike?.call(position);
+  }
+
+  void _removeHeartBurst(int id) {
+    if (!mounted) return;
+    setState(() => _heartBursts.removeWhere((burst) => burst.id == id));
+  }
+
   void _handleLongPressStart(LongPressStartDetails details, double width) {
     final third = width / 3;
     final dx = details.localPosition.dx;

lib/pages/player/widgets/player_double_tap_hearts.dart

@@ -0,0 +1,132 @@
+// Author: fruit.com.cn
+
+import 'dart:math';
+
+import 'package:flutter/material.dart';
+
+import '../../../core/theme/app_colors.dart';
+
+class PlayerDoubleTapHeartBurst extends StatefulWidget {
+  const PlayerDoubleTapHeartBurst({super.key, required this.onCompleted});
+
+  final VoidCallback onCompleted;
+
+  @override
+  State<PlayerDoubleTapHeartBurst> createState() =>
+      _PlayerDoubleTapHeartBurstState();
+}
+
+class _PlayerDoubleTapHeartBurstState extends State<PlayerDoubleTapHeartBurst>
+    with SingleTickerProviderStateMixin {
+  late final AnimationController _controller;
+  late final List<_HeartParticle> _particles;
+  bool _completed = false;
+
+  @override
+  void initState() {
+    super.initState();
+    final random = Random();
+    var delay = 0;
+    _particles = List.generate(6 + random.nextInt(3), (index) {
+      if (index > 0) delay += 40 + random.nextInt(21);
+      return _HeartParticle(
+        delay: delay,
+        duration: 700 + random.nextInt(201),
+        travel: 120 + random.nextInt(41),
+        drift: -30 + random.nextInt(61),
+        size: (22 + random.nextInt(13)).toDouble(),
+        color: random.nextBool()
+            ? AppColors.doubleTapHeartRed
+            : AppColors.doubleTapHeartPink,
+      );
+    });
+    final total = _particles
+        .map((particle) => particle.delay + particle.duration)
+        .reduce(max);
+    _controller = AnimationController(
+      vsync: this,
+      duration: Duration(milliseconds: total),
+    )..addStatusListener(_onStatus);
+    _controller.forward();
+  }
+
+  void _onStatus(AnimationStatus status) {
+    if (status != AnimationStatus.completed || _completed) return;
+    _completed = true;
+    widget.onCompleted();
+  }
+
+  @override
+  void dispose() {
+    _controller
+      ..removeStatusListener(_onStatus)
+      ..dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return IgnorePointer(
+      child: SizedBox.shrink(
+        child: AnimatedBuilder(
+          animation: _controller,
+          builder: (context, _) {
+            final elapsed =
+                _controller.value * _controller.duration!.inMilliseconds;
+            return Stack(
+              clipBehavior: Clip.none,
+              children: [
+                for (final particle in _particles) _particle(particle, elapsed),
+              ],
+            );
+          },
+        ),
+      ),
+    );
+  }
+
+  Widget _particle(_HeartParticle particle, double elapsed) {
+    final progress = ((elapsed - particle.delay) / particle.duration).clamp(
+      0.0,
+      1.0,
+    );
+    if (progress <= 0) return const SizedBox.shrink();
+    final move = Curves.easeOutCubic.transform(progress);
+    final scale = progress < 0.3
+        ? 0.55 + (1.15 - 0.55) * (progress / 0.3)
+        : 1.15 - (1.15 - 0.2) * ((progress - 0.3) / 0.7);
+    return Positioned(
+      left: particle.drift * move - particle.size / 2,
+      top: -particle.travel * move,
+      child: Opacity(
+        opacity: 1 - Curves.easeIn.transform(progress),
+        child: Transform.scale(
+          scale: scale,
+          child: Icon(
+            Icons.favorite_rounded,
+            color: particle.color,
+            size: particle.size,
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class _HeartParticle {
+  const _HeartParticle({
+    required this.delay,
+    required this.duration,
+    required this.travel,
+    required this.drift,
+    required this.size,
+    required this.color,
+  });
+
+  final int delay;
+  final int duration;
+  final int travel;
+  final int drift;
+  final double size;
+  final Color color;
+}