简介
在Unity开发中,有时候我们存在这种需求,需要在Inspector视图中可以查看字段信息但是无法对字段进行赋值,那么我们也可以像Unity内置的[SerializeField]、[Tooltip]等特性那样自定义一个特性,用于满足这个需求。
代码示例(C#)
#if UNITY_EDITOR
using System;
using UnityEngine;
using UnityEditor;
using System.Collections.Generic;// 禁用可序列化字段在Inspector面板的编辑
[AttributeUsage(AttributeTargets.Field, AllowMultiple = false, Inherited = false)]
public class EditDisabledAttribute : PropertyAttribute { }// EditDisabledAttribute的自定义绘制器
[CustomPropertyDrawer(typeof(EditDisabledAttribute))]
class EditDisabledDrawer : PropertyDrawer
{public override float GetPropertyHeight(SerializedProperty property, GUIContent label){return EditorGUI.GetPropertyHeight(property, label, true);}public override void OnGUI(Rect position, SerializedProperty property, GUIContent label){if (IsArray() || IsList()){EditorGUI.BeginDisabledGroup(true);EditorGUI.PropertyField(position, property, label, true);EditorGUI.EndDisabledGroup();}else{GUI.enabled = false;EditorGUI.PropertyField(position, property, label, true);GUI.enabled = true;}}// 是否为数组private bool IsArray(){return fieldInfo.FieldType.IsArray;}// 是否为列表private bool IsList(){return fieldInfo.FieldType.IsGenericType && fieldInfo.FieldType.GetGenericTypeDefinition() == typeof(List<>);}
}
#endif
效果截图
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