unity 之AdvanceEditor 之 Extending the Editor

Editor Windows

 你可以创建自己的窗口，就像属性面板，场景窗口

创建自己的窗口需要遵循以下步骤：

• 常见一个脚本继承自 EditorWindow.
• 使用代码触发窗口来显示自身。
•  使用gui代码实现功能

脚本必须在 “Editor”文件夹下.创建一个脚本继承自 EditorWindow. 在 OnGUI函数里面编写对应的功能脚本

using UnityEngine;
using UnityEditor;
using System.Collections;public class Example : EditorWindow{void OnGUI () {// The actual window code goes here}}

Showing the window

通过 MenuItem属性来来定义一个打开窗口的开关

通过EditorWindow.GetWindow 来显示窗口:

using UnityEngine;
using UnityEditor;
using System.Collections;class MyWindow : EditorWindow {[MenuItem ("Window/My Window")]public static void  ShowWindow () {EditorWindow.GetWindow(typeof(MyWindow));}void OnGUI () {// The actual window code goes here}
}

Showing the MyWindow

可以使用 GetWindowWithRect  对窗口进行更多的操作

Implementing Your Window’s GUI

使用 (GUI 或者 GUILayout)给窗口布局.  EditorGUI and EditorGUILayout仅限编辑器窗口中的ui，

The following C# code shows how you can add GUI elements to your custom EditorWindow:

using UnityEditor;
using UnityEngine;public class MyWindow : EditorWindow
{string myString = "Hello World";bool groupEnabled;bool myBool = true;float myFloat = 1.23f;// Add menu item named "My Window" to the Window menu[MenuItem("Window/My Window")]public static void ShowWindow(){//Show existing window instance. If one doesn't exist, make one.EditorWindow.GetWindow(typeof(MyWindow));}void OnGUI(){GUILayout.Label ("Base Settings", EditorStyles.boldLabel);myString = EditorGUILayout.TextField ("Text Field", myString);groupEnabled = EditorGUILayout.BeginToggleGroup ("Optional Settings", groupEnabled);myBool = EditorGUILayout.Toggle ("Toggle", myBool);myFloat = EditorGUILayout.Slider ("Slider", myFloat, -3, 3);EditorGUILayout.EndToggleGroup ();}
}

This example results in a window which looks like this:

Running Editor Script Code on Launch

有时候你想发布之后的应用运行编辑器状态下的脚本，你可以为一个类添加InitializeOnLoad 属性，执行它的构造方法，构造方法就是方法名和类名一样但是没有返回值

using UnityEngine;
using UnityEditor;[InitializeOnLoad]
public class Startup {static Startup(){Debug.Log("Up and running");}
}

比如在编辑器中设置一个常规回调。EditorApplication类有一个名为update的委托，该委托在编辑器运行时每秒调用多次。要在项目启动时启用此委托，可以使用如下代码:-

using UnityEditor;
using UnityEngine;[InitializeOnLoad]
class MyClass
{static MyClass (){EditorApplication.update += Update;}static void Update (){Debug.Log("Updating");}
}