Unity 编辑器扩展精髓 之 窗口创建与绘制基础组件

        本专栏基础资源来自唐老狮和siki学院，仅作学习交流使用，不作任何商业用途，吃水不忘打井人，谨遵教诲

本文只需要知道三个重点即可

EditorWindow类负责操作窗口

OnGUI方法是进入GUI窗口绘制的关键函数

GUILayout类负责绘制具体内容

 EditorWindow          

         官方文档：EditorWindow - Unity 脚本 API 

        继承了 EditorWindow类的编辑器脚本， 你可以在这个窗口中添加自定义方法，如下图演示将创建一个名为Name，有一个任意内容label的窗口

public class Window : EditorWindow
{[MenuItem("MyWindow/window1")]private static void MyWindow(){Window w =EditorWindow.GetWindow<Window>("Name");w.Show();}private void OnGUI() {GUILayout.Label("任意内容");}
}

EditorGUILayout

        但是在具体绘制这一点，unity提供了一个新的类叫做EditorGUILayout，功能与GUILayout相似加入了自动布局功能

EditorGUILayout - Unity 脚本 API

        举例：每种元素都用常用api

using System.Collections;
using System.Collections.Generic;
using Unity.VisualScripting;
using UnityEditor;
using UnityEngine;public class Window : EditorWindow
{[MenuItem("MyWindow/window1")]private static void MyWindow(){Window w =EditorWindow.GetWindow<Window>("Name");w.Show();}//层级和标签int layer;string tag;//选择枚举enum E_AnyType{ a=1,b=2,c=4,d=8,//要将枚举中的变量定义为2的幂次方,原因是多选枚举时，是按照 或运算 将得出的结果记录下来//比如a=1,二进制为0001，b=2，二进制为0010，或运算后结果为0011 = 3 //如果不按此规则，a=1，b=2，c=3，当a|b之后，得到的结果就变成了c，而不是多选a和b}E_AnyType single;E_AnyType multiple;//字符串选择对应数组值int returnNum;string[] options = { "op1", "op2", "op3", "op4" };int[] result = { 1,2,3,4};//关联资源GameObject obj;int value;//整形输入框//折叠控件bool isHide;bool isGroupHide;//滑动条float slider;int intSlider;float min;float max;private void OnGUI() {EditorGUILayout.LabelField("页签");layer =EditorGUILayout.LayerField(layer);//return inttag =EditorGUILayout.TagField("标签");//return stingsingle = (E_AnyType)EditorGUILayout.EnumPopup("单选枚举",single);//return typeof(E_AnyType)multiple = (E_AnyType)EditorGUILayout.EnumFlagsField("多选枚举",multiple);returnNum = EditorGUILayout.IntPopup("字符串对应数组", returnNum, options, result);EditorGUILayout.LabelField(returnNum.ToString());EditorGUILayout.DropdownButton(new GUIContent("按钮"), FocusType.Passive);//return boolisHide = EditorGUILayout.Foldout(isHide,"折叠控件 bool包裹内容");if(isHide){obj = EditorGUILayout.ObjectField("关联资源对象框", obj, typeof(GameObject), true) as GameObject;value = EditorGUILayout.IntField("输入框", value);}isGroupHide = EditorGUILayout.BeginFoldoutHeaderGroup(isGroupHide,"折叠组控件 必须包括开始和结束");EditorGUILayout.EndFoldoutHeaderGroup();//开关和开关组类似于折叠控件 关键词：Toggleslider =EditorGUILayout.Slider("滑动条",slider,0,1);intSlider = EditorGUILayout.IntSlider("整型滑动条",intSlider,0,1);//双块滑动条EditorGUILayout.MinMaxSlider("双块",ref min,ref max,0,1);EditorGUILayout.Space(10);//间隔框//提示框EditorGUILayout.HelpBox("提示框",MessageType.Warning);//MessageType选择类型}
}