【UGUI】一键排版对齐

来源：互联网发布：sql语句数据类型编辑：程序博客网时间：2024/06/02 02:26

好久没有写东西了，因为最近忙，做一些项目上具体的功能。由于偶尔还是要拼一下UI，感觉对齐还是一个问题。虽然在以前写过一个一键对齐父节点的东西，可还是不够用，Unity中没有其他工具一样的辅助线。。。so,如果要让两个UI项以某种方式对齐排列，自己手动摆毛事总有那么一点点误差，除非你改坐标。我的功能是这样的：

支持 缩放、锚点、中心点 不同，全部一键搞定。

using System.Collections;using System.Collections.Generic;using UnityEditor;using UnityEngine;/// <summary>/// Introduction: GUIAlignOthers/// Author: Cheng/// Time: /// </summary>public class GUIAlignOthers :Editor{    [MenuItem("GameObject/UI/Align/Top")]    static void AlignTop()    {        Align(1);    }    [MenuItem("GameObject/UI/Align/Left")]    static void AlignLeft()    {        Align(2);    }    [MenuItem("GameObject/UI/Align/Right")]    static void AlignRight()    {        Align(3);    }    [MenuItem("GameObject/UI/Align/Bottom")]    static void AlignBottom()    {        Align(4);    }    [MenuItem("GameObject/UI/Align/Horizontal")]    static void AlignHorizontal()    {        Align(5);    }    [MenuItem("GameObject/UI/Align/Vertical")]    static void AlignVertical()    {        Align(6);    }    static void Align(int type)    {        List<RectTransform> rects = new List<RectTransform>();        GameObject[] objects = Selection.gameObjects;        foreach (var obj in objects)        {            RectTransform rect = obj.GetComponent<RectTransform>();            if (rect != null)                rects.Add(rect);        }        if (rects.Count > 1)        {            Align(type, rects);        }    }    static void Align(int type, List<RectTransform> rects)    {        RectTransform tenplate = rects[0];        float w = tenplate.sizeDelta.x * tenplate.lossyScale.x;//消除缩放影响        float h = tenplate.sizeDelta.y * tenplate.localScale.y;        float x = tenplate.position.x - tenplate.pivot.x * w; //消除中心点并非pivot非（0.5，0.5）影响        float y = tenplate.position.y - tenplate.pivot.y * h;        switch (type)        {            case 1://上对齐                for (int i = 1; i < rects.Count; i++)                {                    RectTransform trans = rects[i];                    float th = trans.sizeDelta.y * trans.localScale.y;                    Vector3 pos = trans.position;                    pos.y = y + h - th + trans.pivot.y * th;                    trans.position = pos;                }                break;            case 2://左对齐                for (int i = 1; i < rects.Count; i++)                {                    RectTransform trans = rects[i];                    float tw = trans.sizeDelta.x * trans.lossyScale.x;                    Vector3 pos = trans.position;                    pos.x = x + tw*trans.pivot.x;                    trans.position = pos;                }                break;            case 3://右对齐                for (int i = 1; i < rects.Count; i++)                {                    RectTransform trans = rects[i];                    float tw = trans.sizeDelta.x * trans.lossyScale.x;                    Vector3 pos = trans.position;                    pos.x = x+ w - tw + tw * trans.pivot.x;                    trans.position = pos;                }                break;            case 4://下对齐                for (int i = 1; i < rects.Count; i++)                {                    RectTransform trans = rects[i];                    float th = trans.sizeDelta.y * trans.localScale.y;                    Vector3 pos = trans.position;                    pos.y = y + th*trans.pivot.y;                    trans.position = pos;                }                break;            case 5://水平对齐                for (int i = 1; i < rects.Count; i++)                {                    RectTransform trans = rects[i];                    float th = trans.sizeDelta.y * trans.localScale.y;                    Vector3 pos = trans.position;                    pos.y = y + 0.5f * h - 0.5f*th + th * trans.pivot.y;                    trans.position = pos;                }                break;            case 6://垂直对齐                for (int i = 1; i < rects.Count; i++)                {                    RectTransform trans = rects[i];                    float tw = trans.sizeDelta.x * trans.lossyScale.x;                    Vector3 pos = trans.position;                    pos.x = x + 0.5f * w - 0.5f * tw + tw * trans.pivot.x;                    trans.position = pos;                }                break;        }    }}

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