From 0842d94d95f3200201c0119b1f1ecc111f38b019 Mon Sep 17 00:00:00 2001
From: mogelbuster <krc345@gmail.com>
Date: Wed, 30 Aug 2023 17:48:46 -0400
Subject: [PATCH] Fix for duplicate values using setState

Fix for duplicate values appearing for each call to setState when initializing MultiSelectContainer with pre-selected items.
---
 .../lib/src/containers/multi_select_container.dart    | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/flutter_multi_select/lib/src/containers/multi_select_container.dart b/flutter_multi_select/lib/src/containers/multi_select_container.dart
index 606e442..12fc136 100644
--- a/flutter_multi_select/lib/src/containers/multi_select_container.dart
+++ b/flutter_multi_select/lib/src/containers/multi_select_container.dart
@@ -119,7 +119,7 @@ class _SimpleMultiSelectContainerState<T>
 
   @override
   void didUpdateWidget(MultiSelectContainer<T> oldWidget) {
-    _addInitiallySelectedItemsToSelectedList();
+    _setPerpetualSelectedItemsCount();
     if (widget.controller != null) {
       widget.controller!.deselectAll = oldWidget.controller!.deselectAll;
       widget.controller!.getSelectedItems =
@@ -129,7 +129,7 @@ class _SimpleMultiSelectContainerState<T>
     super.didUpdateWidget(oldWidget);
   }
 
-  //add initially selected items and find perpetual selected items count
+  // add initially selected items and find perpetual selected items count
   void _addInitiallySelectedItemsToSelectedList() {
     final initiallySelected = _items
         .where((item) => item.selected || item.perpetualSelected)
@@ -140,6 +140,13 @@ class _SimpleMultiSelectContainerState<T>
     setState(() {});
   }
 
+  // find perpetual selected items count
+  void _setPerpetualSelectedItemsCount() {
+    _perpetualSelectedItemsCount =
+        _items.where((item) => item.perpetualSelected).length;
+    setState(() {});
+  }
+
   // Deselect all selected items excluding Perpetual Selected Items
   // for controller deselect call back
   void _deSelectAll() {