// 开始异步加载场景
// sceneName: 下一场景名
// bundleName: 要同时加载的bundle名字
// loadingSceneCallback: 完成加载Loading场景后的回调
// nextSceneInitWork: 下一场景预加载函数，会将预加载数据存储到_nextSceneData，函数调用的时候立刻执行
// nextSceneHandleData: 下一场景加载完成后取回预加载数据的回调函数
// forceLoad: 跳过Loading场景，直接加载下一场景
public void LoadSceneAsync(string sceneName, bool dontDestroy = false,
NextSceneCallback nextSceneHandleData = null)
{
if (_isLoading)
{
return;
}
_isLoading = true;
var currentScene = SceneManager.GetActiveScene().name;
if (!currentScene.Equals(LoadingScene))
{
_dontDestroy = dontDestroy;
_lastScene = currentScene;
_nextScene = sceneName;
_bundleName = sceneName;
if (_currentSceneEndCallback != null)
{
_currentSceneEndCallback();
_currentSceneEndCallback = null;
}
_loadPageComplete = true;
AddNextSceneHandler(nextSceneHandleData);
StartLoadLoadingScene();
}
}
IEnumerator LoadNextScene(AsyncOperation ao, float startTime)
{
while (true)
{
if (_progress < 1f)
{
// ao.progress到0.9就卡住了，所以大约在0.8之前读取ao.progress，之后模拟进度直到100%
float threshold = .8f;
if (_progress < threshold)
{
RefreshProgress(ao.progress);
}
else
{
RefreshProgress(1f);
}
yield return(null);
}
else
{
if (!_dontDestroy)
{
PageManager.Instance.DestroyCurrentPages();
}
yield return(null);
if (_nextSceneHandleData != null)
{
_nextSceneHandleData();
_nextSceneHandleData = null;
}
while (!_loadPageComplete)
{
yield return(null);
}
ao.allowSceneActivation = true;
while (SceneManager.GetActiveScene().name == LoadingScene)
{
yield return(null);
}
Resources.UnloadUnusedAssets();
System.GC.Collect();
GeneralUIManager.RefreshSortingOrder();
_isLoading = false;
break;
}
}
}
public void LoadSceneAsyncAndOpenPage(string sceneName, string pageName, bool dontDestroy = false, Action finishCallback = null,
NextSceneCallback nextSceneHandleData = null)
{
if (_isLoading)
{
return;
}
nextSceneHandleData += delegate {
finishCallback += LoadPageCompleteCallback;
PageManager.Instance.OpenPage(pageName, dontDestroy, finishCallback, true);
};
LoadSceneAsync(sceneName, dontDestroy, nextSceneHandleData);
PageManager.State = PageManager.CommandState.WaitingForCommand;
_loadPageComplete = false;
}
public void RemoveNextSceneHandler(NextSceneCallback handler)
{
_nextSceneHandleData -= handler;
}
public void AddNextSceneHandler(NextSceneCallback handler)
{
_nextSceneHandleData += handler;
}
