Version: 2023.2

SerializedProperty.InsertArrayElementAtIndex

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public void InsertArrayElementAtIndex (int index);

描述

Insert an new element at the specified index in the array.

The value of the inserted element is undefined and should be explicitly set after calling this function.
Additional resources: isArray, arraySize, GetArrayElementAtIndex.

using UnityEditor;
using UnityEngine;

public class InsertArrayElementAtIndexExample : ScriptableObject { public string[] m_Data;

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

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

arrayProperty.InsertArrayElementAtIndex(1); arrayProperty.GetArrayElementAtIndex(1).stringValue = "big";

arrayProperty.InsertArrayElementAtIndex(arrayProperty.arraySize); arrayProperty.GetArrayElementAtIndex(arrayProperty.arraySize - 1).stringValue = "jumped.";

serializedObject.ApplyModifiedProperties();

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