编辑窗口
为何选择编辑窗口？
你可能已经看到，你可以在自定义检查器中执行很多操作（如果你不知道自定义检查器是什么，请查看此处的示例： http) ： //stackoverflow.com/documentation/unity3d/2506/extending - 编辑）) 。但有时你可能希望实现配置面板或自定义资产调色板。在这些情况下，你将使用 EditorWindow 。Unity UI 本身由 Editor Windows 组成; 你可以打开它们（通常通过顶部栏），选项卡等。
创建一个基本的 EditorWindow
简单的例子
创建自定义编辑器窗口非常简单。你需要做的就是扩展 EditorWindow 类并使用 Init() 和 OnGUI（）方法。这是一个简单的例子：
using UnityEngine;
using UnityEditor;
public class CustomWindow : EditorWindow
{
// Add menu named "Custom Window" to the Window menu
[MenuItem("Window/Custom Window")]
static void Init()
{
// Get existing open window or if none, make a new one:
CustomWindow window = (CustomWindow) EditorWindow.GetWindow(typeof(CustomWindow));
window.Show();
}
void OnGUI()
{
GUILayout.Label("This is a custom Editor Window", EditorStyles.boldLabel);
}
}
三个重点是：
- 不要忘记扩展 EditorWindow
- 使用示例中提供的
Init()。 EditorWindow.GetWindow 正在检查是否已创建 CustomWindow。如果没有，它将创建一个新实例。使用此选项可确保你不会同时拥有多个窗口实例 - 像往常一样使用
OnGUI()在窗口中显示信息
最终结果如下：
http://i.imgur.com/9O0TpTW.png
走得更远
当然，你可能希望使用此 EditorWindow 管理或修改某些资产。下面是使用 Selection 类（获取活动 Selection）并通过 SerializedObject 和 SerializedProperty 修改所选资产属性的示例。
using System.Linq;
using UnityEngine;
using UnityEditor;
public class CustomWindow : EditorWindow
{
private AnimationClip _animationClip;
private SerializedObject _serializedClip;
private SerializedProperty _events;
private string _text = "Hello World";
// Add menu named "Custom Window" to the Window menu
[MenuItem("Window/Custom Window")]
static void Init()
{
// Get existing open window or if none, make a new one:
CustomWindow window = (CustomWindow) EditorWindow.GetWindow(typeof(CustomWindow));
window.Show();
}
void OnGUI()
{
GUILayout.Label("This is a custom Editor Window", EditorStyles.boldLabel);
// You can use EditorGUI, EditorGUILayout and GUILayout classes to display anything you want
// A TextField example
_text = EditorGUILayout.TextField("Text Field", _text);
// Note that you can modify an asset or a gameobject using an EditorWindow. Here is a quick example with an AnimationClip asset
// The _animationClip, _serializedClip and _events are set in OnSelectionChange()
if (_animationClip == null || _serializedClip == null || _events == null) return;
// We can modify our serializedClip like we would do in a Custom Inspector. For example we can grab its events and display their information
GUILayout.Label(_animationClip.name, EditorStyles.boldLabel);
for (var i = 0; i < _events.arraySize; i++)
{
EditorGUILayout.BeginVertical();
EditorGUILayout.LabelField(
"Event : " + _events.GetArrayElementAtIndex(i).FindPropertyRelative("functionName").stringValue,
EditorStyles.boldLabel);
EditorGUILayout.PropertyField(_events.GetArrayElementAtIndex(i).FindPropertyRelative("time"), true,
GUILayout.ExpandWidth(true));
EditorGUILayout.PropertyField(_events.GetArrayElementAtIndex(i).FindPropertyRelative("functionName"),
true, GUILayout.ExpandWidth(true));
EditorGUILayout.PropertyField(_events.GetArrayElementAtIndex(i).FindPropertyRelative("floatParameter"),
true, GUILayout.ExpandWidth(true));
EditorGUILayout.PropertyField(_events.GetArrayElementAtIndex(i).FindPropertyRelative("intParameter"),
true, GUILayout.ExpandWidth(true));
EditorGUILayout.PropertyField(
_events.GetArrayElementAtIndex(i).FindPropertyRelative("objectReferenceParameter"), true,
GUILayout.ExpandWidth(true));
EditorGUILayout.Separator();
EditorGUILayout.EndVertical();
}
// Of course we need to Apply the modified properties. We don't our changes won't be saved
_serializedClip.ApplyModifiedProperties();
}
/// This Message is triggered when the user selection in the editor changes. That's when we should tell our Window to Repaint() if the user selected another AnimationClip
private void OnSelectionChange()
{
_animationClip =
Selection.GetFiltered(typeof(AnimationClip), SelectionMode.Assets).FirstOrDefault() as AnimationClip;
if (_animationClip == null) return;
_serializedClip = new SerializedObject(_animationClip);
_events = _serializedClip.FindProperty("m_Events");
Repaint();
}
}
结果如下：
高级主题
你可以在编辑器中执行一些非常高级的操作，而 EditorWindow 类非常适合显示大量信息。Unity 资源商店中的大多数高级资产（例如 NodeCanvas 或 PlayMaker）使用 EditorWindow 显示自定义视图。
在 SceneView 中绘图
与 EditorWindow 有关的一个有趣的事情是直接在 SceneView 中显示信息。通过这种方式，你可以创建完全自定义的地图/世界编辑器，例如，使用自定义 EditorWindow 作为资产调色板并在 SceneView 中单击单击以实例化新对象。这是一个例子：
using UnityEngine;
using System;
using UnityEditor;
public class CustomWindow : EditorWindow {
private enum Mode {
View = 0,
Paint = 1,
Erase = 2
}
private Mode CurrentMode = Mode.View;
[MenuItem ("Window/Custom Window")]
static void Init () {
// Get existing open window or if none, make a new one:
CustomWindow window = (CustomWindow)EditorWindow.GetWindow (typeof (CustomWindow));
window.Show();
}
void OnGUI () {
GUILayout.Label ("This is a custom Editor Window", EditorStyles.boldLabel);
}
void OnEnable() {
SceneView.onSceneGUIDelegate = SceneViewGUI;
if (SceneView.lastActiveSceneView) SceneView.lastActiveSceneView.Repaint();
}
void SceneViewGUI(SceneView sceneView) {
Handles.BeginGUI();
// We define the toolbars' rects here
var ToolBarRect = new Rect((SceneView.lastActiveSceneView.camera.pixelRect.width / 6), 10, (SceneView.lastActiveSceneView.camera.pixelRect.width * 4 / 6) , SceneView.lastActiveSceneView.camera.pixelRect.height / 5);
GUILayout.BeginArea(ToolBarRect);
GUILayout.BeginHorizontal();
GUILayout.FlexibleSpace();
CurrentMode = (Mode) GUILayout.Toolbar(
(int) CurrentMode,
Enum.GetNames(typeof(Mode)),
GUILayout.Height(ToolBarRect.height));
GUILayout.FlexibleSpace();
GUILayout.EndHorizontal();
GUILayout.EndArea();
Handles.EndGUI();
}
}
这将直接在 SceneView 中显示工具栏 
以下是你可以走多远的快速一瞥：
