AssetDatabase.CanOpenAssetInEditor

参数

返回

bool Returns true if Unity can successfully open the asset in the Editor, otherwise returns false.

描述

Checks if Unity can open an asset in the Editor.

Checks if Unity can open a given asset instance in the Editor if AssetDatabase.OpenAsset is executed. Note: The asset must be written to disk, or this function always returns false.

using UnityEditor;
using UnityEditor.Callbacks;
using UnityEngine;

[CreateAssetMenu(fileName = "MyObject", menuName = "ScriptableObjects/MyObject", order = 1)]
public class MyObject : ScriptableObject
{
    public string myData;

    [OnOpenAsset]
    public static bool Open(int instanceID)
    {
        if (AssetDatabase.GetMainAssetTypeAtPath(AssetDatabase.GetAssetPath(instanceID)) == typeof(MyObject))
        {
            Debug.Log("Opening asset");
            return true;
        }
        else  return false; // This method doesn't handle opening of different asset types
    }

    [OnOpenAsset(OnOpenAssetAttributeMode.Validate)]
    public static bool WillOpen(int instanceID)
    {
        if (AssetDatabase.GetMainAssetTypeAtPath(AssetDatabase.GetAssetPath(instanceID)) == typeof(MyObject))
        {
            // We can open MyObject asset using MyObject opening method
            Debug.Log("This asset can be opened by OnOpenAsset marked method");
            return true;
        }
        else  return false; // The passed instance doesn't belong to MyObject type asset so we won't be able to open it using opening method inside MyObject
    }

    [MenuItem("Test/WillOpenInUnity")]
    public static void WillSelectionBeOpenedInUnity()
    {
        AssetDatabase.CanOpenAssetInEditor(Selection.activeObject.GetInstanceID());
    }
}