SerializedProperty.MoveArrayElement

Description

Move an array element from srcIndex to dstIndex.

Additional resources: isArray, InsertArrayElementAtIndex, DeleteArrayElementAtIndex

using System.Collections.Generic;
using UnityEditor;
using UnityEngine;

public class MoveArrayElementExample : ScriptableObject
{
    public List<string> m_Data;

    [MenuItem("Example/SerializedProperty/MoveArrayElementExample Example")]
    static void MenuCallback()
    {
        MoveArrayElementExample obj = ScriptableObject.CreateInstance<MoveArrayElementExample>();
        obj.m_Data = new List<string>() { "cat", "The", "jumped.", "big" };

        SerializedObject serializedObject = new SerializedObject(obj);
        SerializedProperty arrayProperty = serializedObject.FindProperty("m_Data");

        arrayProperty.MoveArrayElement(0, 1);
        arrayProperty.MoveArrayElement(3, 1);

        serializedObject.ApplyModifiedProperties();

        // Outputs "The big cat jumped."
        Debug.Log("Final array contents: " + string.Join(" ", obj.m_Data));
    }
}