Unity Editor学习IHasCustomMenu

本文章里只是简单地总结各种比较少见的editor使用

IHasCustomMenu

Unity中的窗口都可以通过右键窗口的tab 或者 点击窗口右上角的一个菜单按钮 来显示窗口菜单项。窗口都有默认的菜单项。但可以通过实现 IHasCustomMenu 接口中的 AddItemsToMenu 函数 来添加自定义的菜单项。

public class AssetBundleBrowserMain : EditorWindow, IHasCustomMenu{
    [MenuItem("Window/AssetBundle Browser", priority = 2050)]
    static void ShowWindow()
    {
        var window = GetWindow<AssetBundleBrowserMain>();
        window.titleContent = new GUIContent("AssetBundles");
        window.Show();
    }
    [SerializeField]
    public bool multiDataSource = false;
    public virtual void AddItemsToMenu(GenericMenu menu)
    {
        //menu.AddSeparator(string.Empty);
        menu.AddItem(new GUIContent("Custom Sources"), multiDataSource, FlipDataSource);
    }
    public void FlipDataSource()
    {
        multiDataSource = !multiDataSource;
    }
}

也可以控制菜单选项的展示方式,比如在菜单上默认显示的锁头

using UnityEngine;
using UnityEditor;
 
public class WindowWithLockIcon : EditorWindow, IHasCustomMenu {
 
    /// <summary>
    /// Menu item to display our test window.
    /// </summary>
    [MenuItem("Window/Window with Lock Icon")]
    static void Show() {
        GetWindow<WindowWithLockIcon>("Lock Test");
    }
 
    /// <summary>
    /// Keep local copy of lock button style for efficiency.
    /// </summary>
    [System.NonSerialized]
    GUIStyle lockButtonStyle;
    /// <summary>
    /// Indicates whether lock is toggled on/off.
    /// </summary>
    [System.NonSerialized]
    bool locked = false;
 
    /// <summary>
    /// Magic method which Unity detects automatically.
    /// </summary>
    /// <param name="position">Position of button.</param>
    void ShowButton(Rect position) {
        if (lockButtonStyle == null)
            lockButtonStyle = "IN LockButton";
        locked = GUI.Toggle(position, locked, GUIContent.none, lockButtonStyle);
    }
 
    /// <summary>
    /// Adds custom items to editor window context menu.
    /// </summary>
    /// <remarks>
    /// <para>This will only work for Unity 4.x+</para>
    /// </remarks>
    /// <param name="menu">Context menu.</param>
    void IHasCustomMenu.AddItemsToMenu(GenericMenu menu) {
        menu.AddItem(new GUIContent("Lock"), locked, () => {
            locked = !locked;
        });
    }
 
}