Unity でアセットを開くためのコールバック属性 (例えばプロジェクトブラウザーでアセットをダブルクリックしたとき、コールバックが発生)
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 one of the following signatures:
static bool OnOpenAsset(int instanceID, int line)
static bool OnOpenAsset(int instanceID, int line, int column)
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 にはコールバックで 0 で始まる順序のインデックスを提供するオプションがあります。このオプションは、複数のOnOpenAssetAttribute コールバックがあり、ある順序で呼び出したい場合に役立ちます。コールバックは 0 から順番通りに呼び出されます。
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