Unity3D 自定义 Editor 扩展

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Unity3D 提供了强大的编辑器扩展机制，为了提高工作效率，我们可能会或多或少的进行编辑器扩展的开发，最常用的像打包 assetbundle 工具，因为原文部分代码有错误，为了让大家更好的理解这部分内容，本文对原作者的内容进行了修改以及补充，希望对您有所帮助。

第一种：ScriptableObject。相信大家一定用过这个，没有界面，代码如下：

<span style="font-size:18px;">using UnityEngine;using UnityEditor;public class ScriptableObjectDemo : ScriptableObject {//[MenuItem("GameObject/MainMenuItemDemo")] 去掉 callback 可以在 GameObject 菜单栏显示public static void MainMenuItemDemo(System.Action<string> callback = null){// 处理一些事情if(callback != null) callback("ScriptableObject Click!");}[MenuItem("Assets/ContextMenuItemDemo")]public static void ContextMenuItemDemo(){Debug.Log ("Project 面板 Assets 目录右键点击触发！");}}</span>

第二种：ScriptableWizard。ScriptableWizard 窗口最多可以定制两个按钮，一个是Create，另外一个称之为 Other。效果如图：

代码如下：

<span style="font-size:18px;">using UnityEngine;using UnityEditor;public class ScriptableWizardDemo : ScriptableWizard {public string ItemName;private static System.Action<string> callback;//[MenuItem("GameObject/ScriptableWizardDemo")] 去掉 callback 可以在 GameObject 菜单栏显示public static void Init(System.Action<string> callback = null){ScriptableWizardDemo.callback = callback;ScriptableWizard.DisplayWizard<ScriptableWizardDemo> ("ScriptableWizard Demo","Submit","Cancel");}void OnWizardUpdate(){//}void OnWizardCreate(){if(ScriptableWizardDemo.callback != null){ScriptableWizardDemo.callback(string.IsNullOrEmpty(this.ItemName) ? "空数据" : this.ItemName);}}void OnWizardOtherButton(){if(ScriptableWizardDemo.callback != null){ScriptableWizardDemo.callback("面板关闭");}this.Close ();}}</span>

第三种：EditorWindow。EditorWindow 可以实现自由浮动和加入其他窗口的 tab，这种窗口的窗体功能和 Scene，Hierarchy 等窗口完全一致。效果如图：

与 ScriptableWizard 的区别如图：

代码如下：

<span style="font-size:18px;">using UnityEngine;using UnityEditor;public class EditorWindowDemo : EditorWindow {public int toolbarOption = 0;public string[] toolbarTexts = {"Tab One", "Tab Two", "Tab Three", "Tab Four"};private bool xCheckbox = true;private bool yCheckbox = true;private bool zCheckbox = true;private string itemName = null;private Transform itemObject = null;private Color itemColor = Color.white;private static System.Action<string> callback;//[MenuItem("Window/EditorWindowDemo")] 去掉 callback 可以在 Window 菜单栏显示public static void Init(System.Action<string> callback = null){EditorWindowDemo.callback = callback;EditorWindowDemo window = (EditorWindowDemo)EditorWindow.GetWindow (typeof(EditorWindowDemo));window.Show ();}void OnGUI(){this.toolbarOption = GUILayout.Toolbar (this.toolbarOption, this.toolbarTexts);switch(this.toolbarOption){case 0 :this.CreateTabOne();break;case 1 :this.CreateTabTwo();break;case 2 : this.CreateTabThree();break;case 3 : this.CreateTabFour();break;}}private void CreateTabOne(){GUILayout.Label ("Tab One Property:", EditorStyles.boldLabel);EditorGUILayout.BeginHorizontal ();GUILayout.Label ("Position Info: \t");this.xCheckbox = GUILayout.Toggle (this.xCheckbox, "X");this.yCheckbox = GUILayout.Toggle (this.yCheckbox, "Y");this.zCheckbox = GUILayout.Toggle (this.zCheckbox, "Z");EditorGUILayout.EndHorizontal ();EditorGUILayout.Space ();if(GUILayout.Button("Tab One Button")){Debug.Log("checkStatus -> x : " + this.xCheckbox + ", y : " + this.yCheckbox + ", z : " + this.zCheckbox);if(EditorWindowDemo.callback != null){EditorWindowDemo.callback("Tab One Button");}}}private void CreateTabTwo(){GUILayout.Label ("Tab Two Property:", EditorStyles.boldLabel);EditorGUILayout.BeginHorizontal ();this.itemName = EditorGUILayout.TextField ("Item Name:", this.itemName);EditorGUILayout.EndHorizontal ();EditorGUILayout.Space ();if(GUILayout.Button("Tab Two Button")){Debug.Log("item name -> " + this.itemName);if(EditorWindowDemo.callback != null){EditorWindowDemo.callback("Tab Two Button");}}}private void CreateTabThree(){GUILayout.Label ("Tab Three Property:", EditorStyles.boldLabel);EditorGUILayout.BeginHorizontal ();GUILayout.Label ("Transform Info: \t");this.itemObject = EditorGUILayout.ObjectField (this.itemObject, typeof(Transform)) as Transform;EditorGUILayout.EndHorizontal ();EditorGUILayout.Space ();if(GUILayout.Button("Tab Three Button")){if(this.itemObject != null){Debug.Log("transform name -> " + this.itemObject.name);}else{Debug.Log("transform name -> " + "null");}if(EditorWindowDemo.callback != null){EditorWindowDemo.callback("Tab Three Button");}}}private void CreateTabFour(){GUILayout.Label ("Tab Four Property:", EditorStyles.boldLabel);EditorGUILayout.BeginHorizontal ();GUILayout.Label ("Color Info: \t");this.itemColor = EditorGUILayout.ColorField (this.itemColor);EditorGUILayout.EndHorizontal ();EditorGUILayout.Space ();if(GUILayout.Button("Tab Four Button")){Debug.Log("color info -> " + this.itemColor.a + ":" + this.itemColor.r + ":" + this.itemColor.g + ":" + this.itemColor.b);if(EditorWindowDemo.callback != null){EditorWindowDemo.callback("Tab Four Button");}}}}</span>

第四种：Editor。对某自定义组件进行观察的Inspector窗口，可以从它派生。效果如图：

与普通 Script 的区别如图：

代码如下：

<span style="font-size:18px;">using UnityEngine;using System;public class EditorComponent : MonoBehaviour {[Serializable]public class Data{public float floatData;public Vector3 vectorData;public Color colorData;}public Data data;public float floatData;public Color colorData;public Transform transformData;}</span>

<span style="font-size:18px;">using UnityEngine;using UnityEditor;[CustomEditor(typeof(EditorComponent))]public class EditorDemo : Editor {private SerializedObject editorCompoent;private SerializedProperty data;private SerializedProperty floatData;private SerializedProperty colorData;private SerializedProperty transformData;void OnEnable() {this.editorCompoent = new SerializedObject(target);this.data = this.editorCompoent.FindProperty("data");this.floatData = this.editorCompoent.FindProperty("floatData");this.colorData = this.editorCompoent.FindProperty("colorData");this.transformData = this.editorCompoent.FindProperty("transformData");}public override void OnInspectorGUI(){this.editorCompoent.Update ();EditorGUILayout.BeginHorizontal();GUILayout.Label ("Data");EditorGUILayout.PropertyField(this.data.FindPropertyRelative("floatData"), GUIContent.none);EditorGUILayout.PropertyField(this.data.FindPropertyRelative("vectorData"), GUIContent.none);EditorGUILayout.PropertyField(this.data.FindPropertyRelative("colorData"), GUIContent.none);EditorGUILayout.EndHorizontal();EditorGUILayout.PropertyField (this.floatData, new GUIContent("Float Data"));EditorGUILayout.PropertyField (this.colorData, new GUIContent("Color Data"));EditorGUILayout.PropertyField (this.transformData, new GUIContent("Transform Data"));if(GUILayout.Button("ScriptableObject Button")){// 点击显示调用 MainMenuItemDemo 函数ScriptableObjectDemo.MainMenuItemDemo((string paramData)=>{Debug.Log("ScriptableObject 回调数据为：" + paramData);});}if(GUILayout.Button("ScriptableWizard Button")){// 点击显示 ScriptableWizard 界面ScriptableWizardDemo.Init((string paramData)=>{Debug.Log("ScriptableWizard 回调数据为：" + paramData);});}if(GUILayout.Button("EditorWindow Button")){// 点击显示 EditorWindow 界面EditorWindowDemo.Init((string paramData)=>{Debug.Log("EditorWindow 回调数据为：" + paramData);});}this.editorCompoent.ApplyModifiedProperties ();}}</span>

为了展示窗口之间的调用与回调，在 EditorDemo 中添加了三个按钮来弹出上面三种（ScriptableObject 没有界面）窗口，同时也在 EditorDemo 中处理了这三个窗口的回调函数。效果如图：

原文链接：http://blog.csdn.net/jjiss318/article/details/7435708