LiveConnectClient.UploadAsync永远不会在wp8上返回 [英] LiveConnectClient.UploadAsync never returns on wp8

问题描述

我发现使用适用于Windows Phone 8的Live SDK 5.5时出现问题。

I am seeing an issue using Live SDK 5.5 for Windows Phone 8.

以下是该场景：我为大文件调用等待LiveConnectClient.UploadAsync（）。在UploadAsync（）任务完成之前，我将停用该应用程序（按下开始按钮）...它处于"快速应用恢复"状态。停用。当我重新激活我的应用程序时，
UploadAsync（）任务永远不会完成......甚至没有异常。它还保存文件句柄人质，因此我无法重复使用它。

Here's the scenario: I call await LiveConnectClient.UploadAsync() for a large file. Before UploadAsync() task is complete, I deactivate the app (pressing start button)... it is in "fast app resume" deactivated. When I re-activate my app, UploadAsync() task never completes... not even with an exception. It also holds the file handle hostage so I can't reuse it.

我也看到类似的地方，如果我在完成之前丢失WiFi连接，则UploadAsync（）永远不会完成。

I am also seeing something similar where UploadAsync() never completes if I lose WiFi connection before its done.

不确定我是否做错了，或者这是否是一个已知问题。

Not sure if I'm doing something wrong, or if this is a known issue.

推荐答案

UploadAsync（）要求您的应用程序位于前台。您需要使用BackgroundUpload（）来处理应用程序切换方案。

UploadAsync() requires your app to be on the foreground. You will need to use BackgroundUpload() to handle the app switching scenario.

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