ScriptableObject.OnDisable()

Description

This function is called when the scriptable object goes out of scope.

OnDisable is called in the following scenarios:

• On loading a scene in the Hierarchy window, for any ScriptableObject that is currently loaded in memory but is not referenced in that scene.
• On invocation of Resources.UnloadUnusedAssets for any ScriptableObject that was previously deselected in the Project window.
• On domain reload, for all ScriptableObjects loaded in memory. Subsequently OnEnable is called for these objects when they are recreated.

OnDisable cannot be a coroutine.

using UnityEngine;
using System;

public class EventManager
{
    public static Action OnSomethingHappened;

    public static void TriggerEvent()
    {
        OnSomethingHappened?.Invoke();
    }
}

// ScriptableObject that listens to an event and unsubscribes when disabled
[CreateAssetMenu(menuName = "Example/Event Listener SO")]
public class EventListenerSO : ScriptableObject
{
    void OnEnable()
    {
        Debug.Log("ScriptableObject enabled. Subscribing to event.");
        EventManager.OnSomethingHappened += HandleEvent;
    }

    void OnDisable()
    {
        Debug.Log("ScriptableObject disabled. Unsubscribing from event.");
        EventManager.OnSomethingHappened -= HandleEvent;
    }

    void HandleEvent()
    {
        Debug.Log("Event received by ScriptableObject!");
    }
}