UnityEventBase.GetPersistentListenerState

Возвращает состояние выполнения постоянного слушателя.

using UnityEngine;
using UnityEngine.Events;

public class Example : MonoBehaviour
{
    public UnityEvent onAction;

    void Start()
    {
        // Prints out the details of all persistent events
        for (int i = 0; i < onAction.GetPersistentEventCount(); ++i)
        {
            var target = onAction.GetPersistentTarget(i);
            var method = onAction.GetPersistentMethodName(i);
            var state = onAction.GetPersistentListenerState(i);

            Debug.Log($"{target}:{method}({state})");
        }
    }
}