public IEnumerator LoadScene(string nextScene)
{
Scene curScene = SceneManager.GetActiveScene();
if (string.IsNullOrEmpty(nextScene) || m_isLoading || curScene.name.Equals(nextScene))
{
yield break;
}
m_isLoading = true;
SceneManager.LoadScene(SceneConst.SceneName, LoadSceneMode.Additive);
yield return(StartCoroutine(AsyncLoadScene(nextScene)));
FreshProcessEvent.Invoke(SceneConst.LOADSCENEPROCESS);
m_unloadAsync = SceneManager.UnloadSceneAsync(curScene);
/*
* //使用LoadSceneMode.Additive进行场景切换，无法完全释放资源。即使使用Resources.UnloadUnusedAssets()也不行
* //可能出现如下情况：
* //1.资源没有引用了，但是还没有回收
* //2.被UnityEngine.EventSystems.StandaloneInputModule和UnityEngine.EventSystems引用
* //当然如果单纯从一个场景切换另外一个场景，直接使用UnityEngine.SceneManagement.SceneManager.LoadScene("xxx")
* //直接切换场景,这个会进行内存回收
*/
yield return(m_unloadAsync);
FreshProcessEvent.Invoke(SceneConst.UNSCENEPROCESS);
//场景中必须有一个对象挂载SceneBase
SceneBase sceneLoader = UnityTool.GetTopObject("SceneLoader").GetComponent <SceneBase>();
if (sceneLoader == null)
{
Debug.LogError("lack of gameobject of name 'SceneLoader'");
yield break;
}
yield return(new WaitUntil(sceneLoader.FinishConfigRes));
FreshProcessEvent.Invoke(SceneConst.INITNETPROCESS);
yield return(new WaitUntil(sceneLoader.FinishGetData));
FreshProcessEvent.Invoke(SceneConst.INITCONFIGPROCESS);
yield return(new WaitUntil(sceneLoader.FinishInit));
FreshProcessEvent.Invoke(SceneConst.INITSCENEPROCESS);
yield return(new WaitForSeconds(1f));
FreshProcessEvent.Invoke(1f);
m_loadAsync = SceneManager.UnloadSceneAsync(SceneConst.SceneName);
yield return(m_loadAsync);
m_isLoading = false;
}
public IEnumerator LoadScene(string nextScene)
{
Scene curScene = SceneManager.GetActiveScene();
if (string.IsNullOrEmpty(nextScene) || isLoading || curScene.name.Equals(nextScene))
{
yield break;
}
isLoading = true;
SceneManager.LoadScene("LoadingScene", LoadSceneMode.Additive);
yield return(StartCoroutine(AsyncLoadScene(nextScene)));
FreshProcessEvent.Invoke(SceneConst.LOADSCENEPROCESS);
unloadAsync = SceneManager.UnloadSceneAsync(curScene);
//2017版本，如果切换场景不进行Resources.UnloadUnusedAssets()，尽快回收资源，但是材质所引用的贴图可能无法切换一次场景
//回收，它仍然被ugui的事件UnityEngine.EventSystems.StandaloneInputModule和UnityEngine.EventSystems引用
//也可能只是被材质引用
// UnityEngine.SceneManagement.SceneManager.LoadScene("xxx")直接切换场景时，上面的问题不存在
yield return(unloadAsync);
Resources.UnloadUnusedAssets();
FreshProcessEvent.Invoke(SceneConst.UNSCENEPROCESS);
SceneBase sceneLoader = UnityTool.GetTopObject("SceneLoader").GetComponent <SceneBase>();
yield return(new WaitUntil(sceneLoader.FinishConfigRes));
FreshProcessEvent.Invoke(SceneConst.INITNETPROCESS);
yield return(new WaitUntil(sceneLoader.FinishGetData));
FreshProcessEvent.Invoke(SceneConst.INITCONFIGPROCESS);
yield return(new WaitUntil(sceneLoader.FinishInit));
FreshProcessEvent.Invoke(SceneConst.INITSCENEPROCESS);
yield return(new WaitForSeconds(1f));
FreshProcessEvent.Invoke(1f);
unloadAsync = SceneManager.UnloadSceneAsync("LoadingScene");
yield return(unloadAsync);
isLoading = false;
}