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Assets/Scripts/DynamicUI/Drawers/EnumDropdownDrawer.cs

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+using System;
+using Ichni.RhythmGame;
+using Lean.Pool;
+using UnityEngine;
+
+namespace Ichni.Editor
+{
+    /// <summary>
+    /// 处理所有 Enum 类型的 Drawer。
+    /// 通过反射获取字段的枚举类型，创建 DynamicUIEnumDropdown。
+    /// </summary>
+    public class EnumDropdownDrawer : IPropertyDrawer
+    {
+        public int DefaultSpan => 1;
+        public float DefaultHeight => LayoutPacker.DefaultRowHeight;
+
+        public DynamicUIElement Draw(DrawContext ctx)
+        {
+            var go = LeanPool.Spawn(ctx.Registry.GetPrefab("enumDropdown"), ctx.Parent);
+            var element = go.GetComponent<DynamicUIEnumDropdown>();
+
+            // 获取枚举类型：优先使用 DrawContext 中的 EnumType，fallback 到反射
+            Type enumType = ctx.EnumType;
+            if (enumType == null && ctx.Target != null && !string.IsNullOrEmpty(ctx.FieldName))
+            {
+                var field = ctx.Target.GetType().GetField(ctx.FieldName);
+                if (field != null) enumType = field.FieldType;
+                else
+                {
+                    var prop = ctx.Target.GetType().GetProperty(ctx.FieldName);
+                    if (prop != null) enumType = prop.PropertyType;
+                }
+            }
+
+            if (enumType != null)
+            {
+                element.SetUpEnum(enumType);
+            }
+
+            element.Initialize(ctx.Target, ctx.Label, ctx.FieldName);
+
+            int span = ctx.OverrideSpan ?? DefaultSpan;
+            float height = ctx.OverrideHeight ?? DefaultHeight;
+            element.SetLayoutSize(span * LayoutPacker.TotalRowWidth / LayoutPacker.MaxSpanPerRow, height);
+
+            return element;
+        }
+    }
+}