Question

我已更新到Unity 2017.1。当我从捆绑实例化场景中的对象时，应用程序会冻结1-3秒。我之前的Unity版本没有注意到这个问题，但我不想降级到5.6。

IEnumerator LoadAssetBundle(WWW www)
{
    EventLisaner.Instance.SetAudioStation(false);
    while (!www.isDone)
    {
        int current = (int)(www.progress * 100);
        progressText.text = string.Format("Загрузка модели {0}%", current.ToString());
        yield return null;
    }
    yield return www;

    if (www.error == null)
    {
        if (bundle != null)
        {
            Destroy(destroyBundle);
            bundle.Unload(true);

        }
        bundle = www.assetBundle;
        StartCoroutine(InstantiationBundle());
    }
    else
    {
        loaderUI.SetActive(false);
    }
}

private IEnumerator InstantiationBundle()
{
    GameObject inst = bundle.LoadAsset("prefab") as GameObject;
    GameObject obj = Instantiate(inst);

    obj.transform.SetParent(RayCam.selectObj.transform.parent, false);
    obj.AddComponent<VuforiaMove>();
    loaderUI.SetActive(false);
    destroyBundle = obj;
    EventLisaner.Instance.enabledLoadBundle = true;
    EventLisaner.Instance.enbledNextTrekingDonload = true;
    yield return null;
}

UPD：我已经确定此行上出现了错误：bundle = www.assetBundle;。我试过yield return bundle = www.assetBundle;，但它似乎没有帮助。仍然有冻结。

Answer 1

导致此冻结的唯一代码行是bundle.LoadAsset。这是在主线程中加载和反序列化AssetBundle。您必须使用此函数的异步版本LoadAssetAsync然后将其生成以完成加载。它将在另一个线程中进行加载。协程只是用来等待在另一个线程中执行的操作完成。

替换

GameObject inst = bundle.LoadAsset("prefab") as GameObject;

与

AssetBundleRequest request = bundle.LoadAssetAsync("prefab");
//Wait for load
yield return request;
GameObject inst = request.asset as GameObject;

其余的代码应该是相同的。

修改：

如果www.assetBundle导致问题，请删除该行代码并使用AssetBundle.LoadFromMemoryAsync(www.bytes)加载Assetbundle。您必须将WWW传递给InstantiationBundle函数。

private IEnumerator InstantiationBundle(WWW www) { AssetBundleCreateRequest createRequest = AssetBundle.LoadFromMemoryAsync(www.bytes); yield return createRequest; AssetBundle bundle = createRequest.assetBundle; AssetBundleRequest request = bundle.LoadAssetAsync("prefab"); //Wait for load yield return request; GameObject inst = request.asset as GameObject; .... ..... yield return null; }

加载下载的AssetBundle

1 个答案: