fix: memory leak when using AnimatableProperty

## [3.3.9](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/3.3.8...3.3.9) (2021-08-02)

### Bug Fixes

* fix for warning CS0618 ([61760d9](61760d940c))

CHANGELOG.md

@@ -1,3 +1,10 @@
+## [3.3.9](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/3.3.8...3.3.9) (2021-08-02)
+
+
+### Bug Fixes
+
+* fix for warning CS0618 ([61760d9](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/61760d940cdd4baacaa196ac1631a0a1a40b7204))
+
 ## [3.3.8](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/3.3.7...3.3.8) (2021-06-08)
 
 

Scripts/Editor/UIParticleEditor.cs

@@ -216,7 +216,12 @@ namespace Coffee.UIExtensions
             var stage = UnityEditor.Experimental.SceneManagement.PrefabStageUtility.GetCurrentPrefabStage();
             if (stage != null && stage.scene.isLoaded)
             {
-                PrefabUtility.SaveAsPrefabAsset(stage.prefabContentsRoot, stage.prefabAssetPath);
+#if UNITY_2020_1_OR_NEWER
+                string prefabAssetPath = stage.assetPath;
+#else
+                string prefabAssetPath = stage.prefabAssetPath;
+#endif
+                PrefabUtility.SaveAsPrefabAsset(stage.prefabContentsRoot, prefabAssetPath);
             }
 #endif
         }

Scripts/UIParticle.cs

@@ -313,6 +313,20 @@ namespace Coffee.UIExtensions
             ClearPreviousMaterials();
         }
 
+        private void ClearMaterials()
+        {
+            // Clear mask materials.
+            s_PrevMaskMaterials.AddRange(_maskMaterials);
+            _maskMaterials.Clear();
+
+            // Clear modified materials.
+            s_PrevModifiedMaterials.AddRange(_modifiedMaterials);
+            _modifiedMaterials.Clear();
+
+            canvasRenderer.Clear();
+            ClearPreviousMaterials();
+        }
+
         private void ClearPreviousMaterials()
         {
             foreach (var m in s_PrevMaskMaterials)
@@ -447,6 +461,7 @@ namespace Coffee.UIExtensions
             _bakedMesh = null;
 
             base.OnDisable();
+            ClearMaterials();
         }
 
         /// <summary>

package.json

@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-particle",
   "displayName": "UI Particle",
   "description": "This plugin provide a component to render particle effect for uGUI.\nThe particle rendering is maskable and sortable, without Camera, RenderTexture or Canvas.",
-  "version": "3.3.8",
+  "version": "3.3.9",
   "unity": "2018.2",
   "license": "MIT",
   "repository": {