承诺函数没有被调用？ [英] Promise functions not being called?

问题描述

以下是我所拥有的代码，其中在BackgroundDownloader.startDownloadAsync（）之后根本没有调用任何promise函数。 我的应用程序在清单中定义了
Internet（客户端）功能。

Here is the code that I have where none of the promise functions are getting called at all after the BackgroundDownloader.startDownloadAsync().  My app has the Internet (Client) capability defined in the manifest.

有任何建议吗？

谢谢，

迈克尔

// Pin the series to the desktop
    function pinSeries(e) {
        
        var desiredName = "Series.jpg";

        Windows.Storage.ApplicationData.current.localFolder.createFileAsync(desiredName, Windows.Storage.CreationCollisionOption.replaceExisting).then(function (localFile) {
            var downloader = new Windows.Networking.BackgroundTransfer.BackgroundDownloader(),
            uriLogo = new Windows.Foundation.Uri(seriesUrl);

            downloader.startDownloadAsync(uriLogo, localFile).then(function (downloadResult) {
                CreateTileAsync(localFile);
            },
            function (error) {
                error;
            },
            function (progress) {
                progress;
            });
        });
    }

推荐答案

嗨迈克尔，

此代码是在后台任务中还是在应用程序中调用的？ 我在背景任务中看到了类似的问题，这就是我要问的原因。

Is this code being called in a background task or in an application?  I have seen similar issues in background tasks and that is why I am asking.

-Jeff

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