OnOpenAssetAttribute

描述

用于打开 Unity 中某个资源的回调属性（例如，双击 Project Browser 中的某个资源时会触发回调）。

Adding this attribute to a static method will make the method be called when Unity is about to open an asset. The method should have the following signature:
static bool OnOpenAsset(int instanceID, int line)
Return true if you handled the opening of the asset or false if an external tool should open it.

// C# example:
using UnityEngine;
using UnityEditor;
using UnityEditor.Callbacks;

public class MyAssetHandler
{
    [OnOpenAssetAttribute(1)]
    public static bool step1(int instanceID, int line)
    {
        string name = EditorUtility.InstanceIDToObject(instanceID).name;
        Debug.Log("Open Asset step: 1 (" + name + ")");
        return false; // we did not handle the open
    }

    // step2 has an attribute with index 2, so will be called after step1
    [OnOpenAssetAttribute(2)]
    public static bool step2(int instanceID, int line)
    {
        Debug.Log("Open Asset step: 2 (" + instanceID + ")");
        return false; // we did not handle the open
    }
}

OnOpenAssetAttribute 具有提供回调中的顺序索引的选项，从 0 开始。如果您有多个 OnOpenAssetAttribute 回调并想以特定顺序调用它们，此选项将非常有用。系统将从零开始按顺序调用回调。

继承的成员