From 9b9aac4a74fac514f5374ea0383136a7ae32764e Mon Sep 17 00:00:00 2001
From: "Simon (darkside) Jackson" <darkside@zenithmoon.com>
Date: Fri, 2 Oct 2020 18:17:47 +0100
Subject: [PATCH] Resolves #346

When cloned, reorderable list was creating a second List Content component that was not initialised.  Refactored to wnsure only one list content was present and is initialised correctly
---
 .../Controls/ReorderableList/ReorderableList.cs        | 10 ++++++++--
 .../Controls/ReorderableList/ReorderableListContent.cs |  5 +++++
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/Runtime/Scripts/Controls/ReorderableList/ReorderableList.cs b/Runtime/Scripts/Controls/ReorderableList/ReorderableList.cs
index c010421..c5c0cf2 100644
--- a/Runtime/Scripts/Controls/ReorderableList/ReorderableList.cs
+++ b/Runtime/Scripts/Controls/ReorderableList/ReorderableList.cs
@@ -89,8 +89,14 @@ namespace UnityEngine.UI.Extensions
         /// </summary>
         public void Refresh()
         {
-            Destroy(_listContent);
-            _listContent = ContentLayout.gameObject.AddComponent<ReorderableListContent>();
+
+            _listContent = ContentLayout.gameObject.GetComponent<ReorderableListContent>();
+
+            if (!_listContent)
+            {
+                _listContent = ContentLayout.gameObject.AddComponent<ReorderableListContent>();
+            }
+
             _listContent.Init(this);
         }
 
diff --git a/Runtime/Scripts/Controls/ReorderableList/ReorderableListContent.cs b/Runtime/Scripts/Controls/ReorderableList/ReorderableListContent.cs
index 9ef2e7a..8908aed 100644
--- a/Runtime/Scripts/Controls/ReorderableList/ReorderableListContent.cs
+++ b/Runtime/Scripts/Controls/ReorderableList/ReorderableListContent.cs
@@ -6,6 +6,7 @@ using System.Collections.Generic;
 
 namespace UnityEngine.UI.Extensions
 {
+    [DisallowMultipleComponent]
     public class ReorderableListContent : MonoBehaviour
     {
         private List<Transform> _cachedChildren;
@@ -13,6 +14,7 @@ namespace UnityEngine.UI.Extensions
         private ReorderableListElement _ele;
         private ReorderableList _extList;
         private RectTransform _rect;
+        private bool _started = false;
 
         private void OnEnable()
         {
@@ -27,12 +29,15 @@ namespace UnityEngine.UI.Extensions
 
         public void Init(ReorderableList extList)
         {
+            if (_started) { StopCoroutine(RefreshChildren()); }
+
             _extList = extList;
             _rect = GetComponent<RectTransform>();
             _cachedChildren = new List<Transform>();
             _cachedListElement = new List<ReorderableListElement>();
 
             StartCoroutine(RefreshChildren());
+            _started = true;
         }
 
         private IEnumerator RefreshChildren()