Version: 2017.2

GenericMenu.AddDisabledItem

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public void AddDisabledItem (GUIContent content);

参数

content 将显示为已禁用菜单项的 GUIContent。

描述

向菜单添加已禁用的项。

下面的示例显示了一个带有已禁用菜单项的上下文菜单,并且该菜单项可以切换为打开和关闭状态。



另请参阅:GenericMenu.AddItemGenericMenu.AddSeparator

// This example shows how to create a context menu inside a custom EditorWindow,
// where the first menu item toggles whether the second menu item is enabled
// or disabled.

using UnityEngine; using UnityEditor;

public class MyWindow : EditorWindow { [MenuItem("TestContextMenu/Open Window")] public static void Init() { var window = GetWindow(typeof(MyWindow)); window.position = new Rect(50, 50, 250, 60); window.Show(); }

bool item2enabled = false; public void Toggle() { item2enabled = !item2enabled; Debug.Log("item2enabled: " + item2enabled); }

public void Item2Callback() { Debug.Log("Item 2 Selected"); }

public void OnGUI() { Event evt = Event.current; Rect contextRect = new Rect(10, 10, 100, 100);

if (evt.type == EventType.ContextClick) { Vector2 mousePos = evt.mousePosition; if (contextRect.Contains(mousePos)) { // Now create the menu, add items and show it GenericMenu menu = new GenericMenu();

menu.AddItem(new GUIContent("Toggle item 2"), item2enabled, Toggle); if (item2enabled) { menu.AddItem(new GUIContent("Item 2"), false, Item2Callback); } else { menu.AddDisabledItem(new GUIContent("Item 2")); }

menu.ShowAsContext();

evt.Use(); } } } }