Unity3D_(API)场景切换SceneManager

　　Unity场景切换SceneManager　　官方文档：传送门

静态方法

　　创建场景

　　CreateScene　　 Create an empty new Scene at runtime with the given name.

 

　　得到当前激活的场景
　　GetActiveScene　　 Gets the currently active Scene.

 

　　根据index得到一个场景
　　GetSceneAt　　 Get the Scene at index in the SceneManager's list of loaded Scenes.

 

　　通过BuildIndex得到一个场景

　　GetSceneByBuildIndex 　　Get a Scene struct from a build index.

 

　　通过名字得到一个场景
　　GetSceneByName 　　Searches through the Scenes loaded for a Scene with the given name.

　　

　　通过路径得到一个场景
　　GetSceneByPath　　 Searches all Scenes loaded for a Scene that has the given asset path.

 

　　加载场景
　　LoadScene 　　Loads the Scene by its name or index in Build Settings.

 

　　异步加载场景
　　LoadSceneAsync 　　Loads the Scene asynchronously in the background.

 

　　合并两个场景
　　MergeScenes　　This will merge the source Scene into the destinationScene.

 

　　把某个游戏物体移动到场景当中
　　MoveGameObjectToScene 　　Move a GameObject from its current Scene to a new Scene.

 

　　激活某个场景
　　SetActiveScene 　　Set the Scene to be active.

 

　　异步卸载某个场景
　　UnloadSceneAsync 　　Destroys all GameObjects associated with the given Scene and removes the Scene from the SceneManager

 

 

 

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;

public class Scene_Gary : MonoBehaviour {

    // Use this for initialization
    void Start () {
        //获得当前场景中的数量
        print(SceneManager.sceneCount);
        //获得BuildSettings中的名字
        print(SceneManager.sceneCountInBuildSettings);

        //获得当前激活场景名字
        print(SceneManager.GetActiveScene().name);
        print(SceneManager.GetSceneAt().name);

        SceneManager.activeSceneChanged += OnActiveSceneChanged;
        SceneManager.sceneLoaded += OnSceneLoaded;
    }

    void OnActiveSceneChanged(Scene a, Scene b)
    {
        print(a.name);
        print(b.name);
    }

    void OnSceneLoaded(Scene a ,LoadSceneMode mode)
    {
        print(a.name+" "+mode);
    }

    // Update is called once per frame
    void Update () {
        if (Input.GetKeyDown(KeyCode.Space))
        {
            //SceneManager.LoadScene(0);
            SceneManager.LoadScene(SceneManager.GetSceneByBuildIndex().name);
        }
    }
}

Scene_Gary.cs

     //获得当前场景中的数量
        print(SceneManager.sceneCount);
        //获得BuildSettings中的名字
        print(SceneManager.sceneCountInBuildSettings);

        //获得当前激活场景名字
        print(SceneManager.GetActiveScene().name);
        print(SceneManager.GetSceneAt().name);

        SceneManager.activeSceneChanged += OnActiveSceneChanged;
        SceneManager.sceneLoaded += OnSceneLoaded;

 

    void OnActiveSceneChanged(Scene a, Scene b)
    {
        print(a.name);
        print(b.name);
    }

    void OnSceneLoaded(Scene a ,LoadSceneMode mode)
    {
        print(a.name+" "+mode);
    }
　　

　　 //重新加载场景
　　//SceneManager.LoadScene(0);
　　SceneManager.LoadScene(SceneManager.GetSceneByBuildIndex().name);

 

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;

public class Scene_Gary : MonoBehaviour {

    // Use this for initialization
    void Start () {
        SceneManager.sceneLoaded += this.OnSceneLoader;
    }

    //当场景加载出来调用触发的事件
    void OnSceneLoader(Scene scene,LoadSceneMode mode)
    {
        Debug.Log("Hello Gary~");
    }

    // Update is called once per frame
    void Update () {
        //加载场景
        SceneManager.LoadScene("Gary2");
        //获得当前场景
        Scene scene = SceneManager.GetActiveScene();
        //重新加载当前场景
        SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex);
    }
}

Scene_Gary.cs

    void Start () {
        //将OnSceneLoader()方法添加到场景管理类
        SceneManager.sceneLoaded += this.OnSceneLoader;
    }

    //当场景加载出来调用触发的事件
    void OnSceneLoader(Scene scene,LoadSceneMode mode)
    {
        Debug.Log("Hello Gary~");
    }

 

 

CreateScene	Create an empty new Scene at runtime with the given name.
GetActiveScene	Gets the currently active Scene.
GetSceneAt	Get the Scene at index in the SceneManager's list of loaded Scenes.
GetSceneByBuildIndex	Get a Scene struct from a build index.
GetSceneByName	Searches through the Scenes loaded for a Scene with the given name.
GetSceneByPath	Searches all Scenes loaded for a Scene that has the given asset path.
LoadScene	Loads the Scene by its name or index in Build Settings.
LoadSceneAsync	Loads the Scene asynchronously in the background.
MergeScenes	This will merge the source Scene into the destinationScene.
MoveGameObjectToScene	Move a GameObject from its current Scene to a new Scene.
SetActiveScene	Set the Scene to be active.
UnloadSceneAsync	Destroys all GameObjects associated with the given Scene and removes the Scene from the SceneManager.

场景构建

　　File->Build Settings

　　将场景放到Scenes In Build中,默认第一个场景index下标是0

　　按下空格，加载下标为0的场景(Gary.scene)

　　通过OnSceneLoader()方法，触发加载场景触发的事件

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;

public class Scene_Gary : MonoBehaviour {

    // Use this for initialization
    void Start () {
        //将OnSceneLoader()方法添加到场景管理类
        SceneManager.sceneLoaded += this.OnSceneLoader;
    }

    //当场景加载出来调用触发的事件
    void OnSceneLoader(Scene scene,LoadSceneMode mode)
    {
        Debug.Log("Hello Gary~");
    }

    // Update is called once per frame
    void Update () {
        if (Input.GetKeyDown(KeyCode.Space))
        {
            SceneManager.LoadScene();
        }
    }
}

Scene_Gary.cs