补充样式组件样式路径的默认值。

针对表格生成预制体的逻辑进行优化。

Runtime/XTable/Rendering/Elements/PrefabPrototypePool.cs

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+using System.Collections.Generic;
+
+using UnityEngine;
+using UnityEngine.Pool;
+
+namespace XericUI.XTable.Rendering.Elements
+{
+	/// <summary>
+	/// 预制体对象池——按原型分组管理，每个预制体对应一个独立的对象池。
+	/// 使用 Stack + HashSet 模式与 <see cref="CellAssembler"/> 保持一致。
+	/// </summary>
+	public class PrefabPrototypePool
+	{
+		#region 内部类型
+
+		private class PrefabPool
+		{
+			public GameObject Prototype;
+			/// <summary>休眠实例栈（池满时先归还的优先复用）</summary>
+			public Stack<GameObject> Available = new Stack<GameObject>();
+			/// <summary>活跃实例集合（O(1) 查找 + 防止重复归还）</summary>
+			public HashSet<GameObject> Active = new HashSet<GameObject>();
+		}
+
+		#endregion
+
+		#region 字段
+
+		private Dictionary<GameObject, PrefabPool> m_Pools = new Dictionary<GameObject, PrefabPool>();
+		private Transform m_Parent;
+		private Transform m_PoolRoot;
+
+		/// <summary>池根节点（所有回收对象均挂在此节点下，节点本身处于 inactive）</summary>
+		public Transform PoolRoot => m_PoolRoot;
+
+		private const HideFlags POOL_FLAGS = HideFlags.DontSave | HideFlags.HideInHierarchy;
+
+		private static readonly Vector2 AnchorTopLeft = new Vector2(0, 1);
+		private static readonly Vector2 PivotTopLeft = new Vector2(0, 1);
+
+		#endregion
+
+		#region 构造 / 销毁
+
+		public PrefabPrototypePool(Transform parent)
+		{
+			m_Parent = parent;
+
+			GameObject poolRoot = new GameObject("_PrefabPoolRoot");
+			poolRoot.hideFlags = POOL_FLAGS;
+			poolRoot.transform.SetParent(parent, false);
+			poolRoot.SetActive(false);
+			m_PoolRoot = poolRoot.transform;
+		}
+
+		/// <summary>彻底销毁所有池对象（活跃 + 休眠 + 池根）</summary>
+		public void DestroyAll()
+		{
+			foreach (var kv in m_Pools)
+			{
+				var pool = kv.Value;
+				// 销毁活跃实例
+				foreach (var go in pool.Active)
+					KillObject(go);
+				pool.Active.Clear();
+				// 销毁休眠实例
+				while (pool.Available.Count > 0)
+					KillObject(pool.Available.Pop());
+			}
+			m_Pools.Clear();
+
+			if (m_PoolRoot != null)
+			{
+				KillObject(m_PoolRoot.gameObject);
+				m_PoolRoot = null;
+			}
+		}
+
+		private static void KillObject(GameObject go)
+		{
+			if (go == null) return;
+			if (Application.isPlaying)
+				Object.Destroy(go);
+			else
+				Object.DestroyImmediate(go);
+		}
+
+		#endregion
+
+		#region 池操作
+
+		/// <summary>从池中获取实例（池空则 Instantiate 新的）</summary>
+		public GameObject Acquire(GameObject prefab, int row, int col)
+		{
+			if (prefab == null) return null;
+
+			var pool = GetOrCreatePool(prefab);
+
+			GameObject instance;
+			if (pool.Available.Count > 0)
+			{
+				instance = pool.Available.Pop();
+				instance.SetActive(true);
+				instance.transform.SetParent(m_Parent, false);
+			}
+			else
+			{
+				instance = Object.Instantiate(prefab, m_Parent);
+				instance.hideFlags = POOL_FLAGS;
+			}
+
+			instance.name = $"_prefab_{row}_{col}";
+
+			// 强制 RectTransform 左上角坐标系
+			RectTransform rt = instance.GetComponent<RectTransform>();
+			if (rt == null) rt = instance.AddComponent<RectTransform>();
+			rt.anchorMin = AnchorTopLeft;
+			rt.anchorMax = AnchorTopLeft;
+			rt.pivot = PivotTopLeft;
+
+			pool.Active.Add(instance);
+			return instance;
+		}
+
+		/// <summary>将指定实例归还对象池（Deactivate + 移入 PoolRoot）</summary>
+		public void Release(GameObject instance)
+		{
+			if (instance == null) return;
+
+			// 查找所属池
+			foreach (var kv in m_Pools)
+			{
+				if (kv.Value.Active.Remove(instance))
+				{
+					instance.SetActive(false);
+					instance.transform.SetParent(m_PoolRoot, false);
+					kv.Value.Available.Push(instance);
+					return;
+				}
+			}
+
+			// 不属于任何池（异常情况），直接销毁
+			KillObject(instance);
+		}
+
+		/// <summary>将所有活跃实例回收至池</summary>
+		public void ReturnAll()
+		{
+			foreach (var kv in m_Pools)
+			{
+				var pool = kv.Value;
+				foreach (var go in pool.Active)
+				{
+					go.SetActive(false);
+					go.transform.SetParent(m_PoolRoot, false);
+					pool.Available.Push(go);
+				}
+				pool.Active.Clear();
+			}
+		}
+
+		/// <summary>获取当前所有活跃实例（用于外部遍历回调）</summary>
+		public IReadOnlyCollection<GameObject> GetActive(GameObject prefab)
+		{
+			if (prefab == null || !m_Pools.TryGetValue(prefab, out var pool))
+				return System.Array.Empty<GameObject>();
+			return pool.Active;
+		}
+
+		#endregion
+
+		#region 内部方法
+
+		private PrefabPool GetOrCreatePool(GameObject prefab)
+		{
+			if (!m_Pools.TryGetValue(prefab, out var pool))
+			{
+				pool = new PrefabPool { Prototype = prefab };
+				m_Pools[prefab] = pool;
+			}
+			return pool;
+		}
+
+		#endregion
+	}
+}

Runtime/XTable/Rendering/Elements/PrefabPrototypePool.cs.meta

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