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November 15, 2022 14:01
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Save Democide/70da781eb2706899b823de6af42d0871 to your computer and use it in GitHub Desktop.
A simple helper class that generates a Reorderable List in Unity that can be folded out.
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using UnityEngine; | |
using UnityEditor; | |
using UnityEditorInternal; | |
public static class ReorderableListUtility { | |
public static ReorderableList GetListWithFoldout(SerializedObject serializedObject, SerializedProperty property, bool draggable, bool displayHeader, bool displayAddButton, bool displayRemoveButton) { | |
var list = new ReorderableList(serializedObject, property, draggable, displayHeader, displayAddButton, displayRemoveButton); | |
list.drawHeaderCallback = (Rect rect) => { | |
var newRect = new Rect(rect.x + 10, rect.y, rect.width-10, rect.height); | |
property.isExpanded = EditorGUI.Foldout(newRect, property.isExpanded, property.displayName); | |
}; | |
list.drawElementCallback = | |
(Rect rect, int index, bool isActive, bool isFocused) => { | |
if (!property.isExpanded) { | |
GUI.enabled = index == list.count; | |
return; | |
} | |
var element = list.serializedProperty.GetArrayElementAtIndex(index); | |
rect.y += 2; | |
EditorGUI.ObjectField( new Rect(rect.x, rect.y, rect.width, EditorGUIUtility.singleLineHeight), element, GUIContent.none); | |
}; | |
list.elementHeightCallback = (int indexer) => { | |
if (!property.isExpanded) | |
return 0; | |
else | |
return list.elementHeight; | |
}; | |
return list; | |
} | |
} |
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This is brilliant! Thank you!