From 99b30ff2d4fe33d68cffd32f66b6ba974533733c Mon Sep 17 00:00:00 2001
From: ltOgt <omnesiaorg@gmail.com>
Date: Sat, 17 Aug 2024 11:28:38 +0200
Subject: [PATCH] cancel controller subscription on dispose

---
 lib/src/widget/card_swiper.dart       | 1 +
 lib/src/widget/card_swiper_state.dart | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/src/widget/card_swiper.dart b/lib/src/widget/card_swiper.dart
index 5d129ff..9eae6dd 100644
--- a/lib/src/widget/card_swiper.dart
+++ b/lib/src/widget/card_swiper.dart
@@ -1,3 +1,4 @@
+import 'dart:async';
 import 'dart:collection';
 import 'dart:math' as math;
 
diff --git a/lib/src/widget/card_swiper_state.dart b/lib/src/widget/card_swiper_state.dart
index 30a5925..6a38caf 100644
--- a/lib/src/widget/card_swiper_state.dart
+++ b/lib/src/widget/card_swiper_state.dart
@@ -20,13 +20,16 @@ class _CardSwiperState<T extends Widget> extends State<CardSwiper>
 
   bool get _canSwipe => _currentIndex != null && !widget.isDisabled;
 
+  StreamSubscription<ControllerEvent>? controllerSubscription;
+
   @override
   void initState() {
     super.initState();
 
     _undoableIndex.state = widget.initialIndex;
 
-    widget.controller?.events.listen(_controllerListener);
+    controllerSubscription =
+        widget.controller?.events.listen(_controllerListener);
 
     _animationController = AnimationController(
       duration: widget.duration,
@@ -65,6 +68,7 @@ class _CardSwiperState<T extends Widget> extends State<CardSwiper>
   @override
   void dispose() {
     _animationController.dispose();
+    controllerSubscription?.cancel();
     super.dispose();
   }