Custom Value Drawer Attribute 特性，允许用户自定义一个绘制方法，字段将以自定的绘制方式展示在Inspector中，非常灵活。

含有Label和不含有Label的字段

    [CustomValueDrawer("HaveLabelNameFunction")]
    public string HaveLabelName;
    [CustomValueDrawer("NoLabelNameFunction")]
    public string NoLabelName;

    public string HaveLabelNameFunction(string tempName, GUIContent label)
    {
        return EditorGUILayout.TextField(label,tempName);
    }
    public string NoLabelNameFunction(string tempName, GUIContent label)
    {
        return EditorGUILayout.TextField(tempName);
    }

绘制Slider滑动条

    public float Max = 100, Min = 0;

    [CustomValueDrawer("MyStaticCustomDrawerStatic")]
    public float CustomDrawerStatic;
    private static float MyStaticCustomDrawerStatic(float value, GUIContent label)
    {
        return EditorGUILayout.Slider(label, value, 0f, 10f);
    }

    [CustomValueDrawer("MyStaticCustomDrawerInstance")]
    public float CustomDrawerInstance;

    private float MyStaticCustomDrawerInstance(float value, GUIContent label)
    {
        return EditorGUILayout.Slider(label, value, this.Min, this.Max);
    }

    [CustomValueDrawer("MyStaticCustomDrawerArray")]
    public float[] CustomDrawerArray = new float[] { 3f, 5f, 6f };

    private float MyStaticCustomDrawerArray(float value, GUIContent label)
    {
        return EditorGUILayout.Slider(value, this.Min, this.Max);
    }

完整示例代码

using Sirenix.OdinInspector;
using UnityEditor;
using UnityEngine;

public class CustomValueDrawerExample : MonoBehaviour
{
    public float Max = 100, Min = 0;

    [CustomValueDrawer("MyStaticCustomDrawerStatic")]
    public float CustomDrawerStatic;
    private static float MyStaticCustomDrawerStatic(float value, GUIContent label)
    {
        return EditorGUILayout.Slider(label, value, 0f, 10f);
    }

    [CustomValueDrawer("MyStaticCustomDrawerInstance")]
    public float CustomDrawerInstance;

    private float MyStaticCustomDrawerInstance(float value, GUIContent label)
    {
        return EditorGUILayout.Slider(label, value, this.Min, this.Max);
    }

    [CustomValueDrawer("MyStaticCustomDrawerArray")]
    public float[] CustomDrawerArray = new float[] { 3f, 5f, 6f };

    private float MyStaticCustomDrawerArray(float value, GUIContent label)
    {
        return EditorGUILayout.Slider(value, this.Min, this.Max);
    }

    [CustomValueDrawer("HaveLabelNameFunction")]
    public string HaveLabelName;
    [CustomValueDrawer("NoLabelNameFunction")]
    public string NoLabelName;

    public string HaveLabelNameFunction(string tempName, GUIContent label)
    {
        return EditorGUILayout.TextField(label, tempName);
    }
    public string NoLabelNameFunction(string tempName, GUIContent label)
    {
        return EditorGUILayout.TextField(tempName);
    }
}

更多教程内容详见：革命性Unity 编辑器扩展工具 — Odin Inspector 系列教程