From b9b8d349fd861d38ac2d204e0f61851b5070b5ec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E6=80=9D=E6=B5=B7?= <1464576565@qq.com>
Date: Tue, 3 Jun 2025 13:24:23 +0800
Subject: [PATCH] modify

---
 .../Layout/AlignableLinearLayoutManager.cs    | 37 ++++---------------
 1 file changed, 7 insertions(+), 30 deletions(-)

diff --git a/Runtime/RecyclerView/Layout/AlignableLinearLayoutManager.cs b/Runtime/RecyclerView/Layout/AlignableLinearLayoutManager.cs
index bd7fc35..457dafa 100644
--- a/Runtime/RecyclerView/Layout/AlignableLinearLayoutManager.cs
+++ b/Runtime/RecyclerView/Layout/AlignableLinearLayoutManager.cs
@@ -1,44 +1,25 @@
+using System;
 using UnityEngine;
 
 namespace AlicizaX.UI.RecyclerView
 {
+    [Serializable]
     public class AlignableLinearLayoutManager : LinearLayoutManager
     {
-        [SerializeField] private float alignmentRatio = 0f; // 对齐比例 (0=顶部, 1=底部, 0.5=居中)
-
-
-        private float CalculateAlignmentOffset()
-        {
-            if (direction == Direction.Vertical)
-            {
-                // 垂直布局：计算视口高度相关的偏移
-                float viewportHeight = viewportSize.y;
-                float itemHeight = lineHeight;
-                return alignmentRatio * (viewportHeight - itemHeight);
-            }
-            else
-            {
-                // 水平布局：计算视口宽度相关的偏移
-                float viewportWidth = viewportSize.x;
-                float itemWidth = lineHeight; // 注意：水平布局中lineHeight表示宽度
-                return alignmentRatio * (viewportWidth - itemWidth);
-            }
-        }
+        [SerializeField] private float alignmentCount = 0f; // 对齐比例 (0=顶部, 1=底部, 0.5=居中)
 
         public override Vector2 CalculatePosition(int index)
         {
             float position;
-            float alignmentOffset = CalculateAlignmentOffset();
 
             if (direction == Direction.Vertical)
             {
-                position = index * (lineHeight + spacing.y) - ScrollPosition + alignmentOffset;
+                position = index * (lineHeight + spacing.y) - ScrollPosition ;
                 return new Vector2(0, position + padding.y);
             }
 
-            position = index * (lineHeight + spacing.x) - ScrollPosition + alignmentOffset;
+            position = index * (lineHeight + spacing.x) - ScrollPosition ;
             var a = new Vector2(position + padding.x, 0);
-            Debug.Log("Calcu" + a);
             return a;
         }
 
@@ -47,24 +28,20 @@ namespace AlicizaX.UI.RecyclerView
             if (index < 0 || index >= adapter.GetItemCount()) return 0;
 
             float len, viewLength, position;
-            float alignmentOffset = CalculateAlignmentOffset();
 
             if (direction == Direction.Vertical)
             {
-                len = index * (lineHeight + spacing.y) + alignmentOffset - ((lineHeight + spacing.y) * 2);
+                len = index * (lineHeight + spacing.y)  - ((lineHeight + spacing.y) * alignmentCount);
                 viewLength = viewportSize.y;
                 position = len + viewLength > contentSize.y ? contentSize.y - viewportSize.y : len;
             }
             else
             {
-                len = index * (lineHeight + spacing.x) + alignmentOffset;
+                len = index * (lineHeight + spacing.x);
                 viewLength = viewportSize.x;
                 position = len + viewLength > contentSize.x ? contentSize.x - viewportSize.x : len;
             }
 
-
-
-            Debug.Log($"index:{index} len:{len} view:{viewLength} position:{position}");
             return position;
         }
     }