SceneManager.sceneLoaded

描述

Add a delegate to this to get notifications when a scene has loaded.

Rather than being called directly this script code shows use of a delegate. This means the screenLoaded value is added into a list of delegate functions.


In the script example below a number of API function calls are shown. Specifically the first labelled function OnEnable() is used to add an OnSceneLoaded() API. The OnSceneLoaded() API is not a Unity provided function. The SceneManager.sceneLoaded variable can have any function hooked into it and it is OnSceneLoaded() here. Finally, OnDisable() is used to remove the OnSceneLoaded API from the SceneManager.sceneLoaded API.

using UnityEngine;
using UnityEngine.SceneManagement;

public class ExampleCode : MonoBehaviour
{
    // called zero
    void Awake()
    {
        Debug.Log("Awake");
    }

    // called first
    void OnEnable()
    {
        Debug.Log("OnEnable called");
        SceneManager.sceneLoaded += OnSceneLoaded;
    }

    // called second
    void OnSceneLoaded(Scene scene, LoadSceneMode mode)
    {
        Debug.Log("OnSceneLoaded: " + scene.name);
        Debug.Log(mode);
    }

    // called third
    void Start()
    {
        Debug.Log("Start");
    }

    // called when the game is terminated
    void OnDisable()
    {
        Debug.Log("OnDisable");
        SceneManager.sceneLoaded -= OnSceneLoaded;
    }
}