EditorSceneManager.sceneManagerSetupRestored

Description

This can be useful to get notified when the SceneManager's scenes are replaced with a set of new scenes from calls to RestoreSceneManagerSetup.

Use the scenes argument to check what scenes has just been opened.

Additional resources: SceneManagerSetupRestoredCallback.

using UnityEditor;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEditor.SceneManagement;

[InitializeOnLoad]
class CheckRestoredScenes
{
    static CheckRestoredScenes()
    {
        EditorSceneManager.sceneManagerSetupRestored += OnSceneManagerSetupRestored;
    }

    static void OnSceneManagerSetupRestored(Scene[] scenes)
    {
        Debug.Log("OnSceneManagerSetupRestored: restored " + scenes.Length);
    }
}