fix

avatar_maker/lib/src/customizer/avatar_maker_customizer.dart

@@ -94,6 +94,8 @@ class _AvatarMakerCustomizerState extends State<AvatarMakerCustomizer>
     with SingleTickerProviderStateMixin {
   late AvatarMakerController avatarMakerController;
   bool _controllerCreatedInternally = false;
+  late final VoidCallback _handleControllerChanged;
+  late final VoidCallback _handleTabChanged;
 
   /// Number of displayed categories in the customizer widget.
   late int nbrDisplayedCategories;
@@ -121,22 +123,23 @@ class _AvatarMakerCustomizerState extends State<AvatarMakerCustomizer>
       vsync: this,
     );
 
-    tabController.addListener(() {
-      setState(() {});
-    });
+    _handleTabChanged = () {
+      if (mounted) setState(() {});
+    };
+    tabController.addListener(_handleTabChanged);
 
     // Add listener to the controller
-    avatarMakerController.addListener(() {
-      setState(() {});
-    });
+    _handleControllerChanged = () {
+      if (mounted) setState(() {});
+    };
+    avatarMakerController.addListener(_handleControllerChanged);
   }
 
   @override
   void dispose() {
-    // Remove the listener
-    avatarMakerController.removeListener(() {
-      setState(() {});
-    });
+    avatarMakerController.removeListener(_handleControllerChanged);
+    tabController.removeListener(_handleTabChanged);
+    tabController.dispose();
 
     // Only dispose the controller if we created it
     if (_controllerCreatedInternally) {