Question

我一直在尝试制作适用于移动设备的应用程序（iOS和Android）以及此应用程序的功能非常简单：

从网络服务器下载txt文件
＆＃34;运行＆＃34; txt，txt文件有一个命令，如＆＃34; display＆＃34;或者＆＃34;玩＆＃34;使用资源的URL（jpg或mp4）
将资源下载或流式传输到场景中的纹理（完成）
使用GoogleVR（LatestVersion）拍摄整件事

现在的问题是，当我启动协程下载内容时，游戏会在移动设备上冻结，但在编辑器中它并没有冻结。

以下是代码：

IEnumerator retrieveCommand(){
    print ("Retrieving command...");
    WWW rx = new WWW (host + "command.txt"); // host is the URL of server
    yield return rx; // wait for end WWW
    if (!string.IsNullOrEmpty (rx.error)) { // if there's an error i stop execution of coroutine
        print (rx.error);
        mex.text = rx.error;
        yield break;
    }
    print ("Command: " + rx.text);
    if (lastCommand != rx.text.Trim ()) { // if last command retrieved is NOT the same as the current
        lastCommand = rx.text.Trim ();
        command = rx.text.Trim ();
        string[] argv = command.Split ('|'); // command is in form of <cmd>|parameter
        mexdisplay = argv [0]; // argv[0] contains command, argv[1] contains the paramter
        switch (argv [0]) { // what's the command?
        case "PLAY":
            video.GetComponent<MediaPlayerCtrl> ().Play ();
            break;
        case "STOP":
            video.GetComponent<MediaPlayerCtrl> ().Stop ();
            break;
        case "PAUSE":
            video.GetComponent<MediaPlayerCtrl> ().Pause ();
            break;
        case "GRAB": // set video resource
            try {
                video.GetComponent<MediaPlayerCtrl> ().m_strFileName = host + argv [1];
            } catch (Exception e) {
                print ("Exception: " + e);
            }
            break;
        case "DISPLAY": // downloads and shows picture
            print ("Display: " + host + argv [1]);
            rx = new WWW (host + argv [1]);
            yield return rx;
            if (!string.IsNullOrEmpty (rx.error)) {
                print (rx.error);
                mex.text = rx.error;
                yield break;
            }
            video.GetComponent<Renderer> ().material.mainTexture = rx.texture;
            break;
        }
    }
    asdf = true;
}

通过更新每隔10秒调用一个协程：

void Update(){
    if(asdf){ // bool, if false -> running coroutine, if true -> not running->count 10 seconds
        curr += Time.deltaTime;
        if (curr >= time) { // time=10f, if counted to 10s start coroutine and reset timer
            asdf = false;
            curr = 0;
            StartCoroutine (retrieveCommand ());
        }
    }
}

编辑：事实证明它就像相机停止渲染......任何帮助？我正在使用GoogleVR相机预制件...

iOS / Android上的Unity Coroutine Freeze

0 个答案: