UWP 应用服务中的多个部分结果 [英] Multiple partial results in a UWP app service

问题描述

我正在尝试使用 UWP 应用服务为其他应用提供一些非 UI 处理服务包括宿主应用.为了响应，我想逐步返回结果.考虑 grep-ping 包含特定字符串的文件的文件夹:最好报告我们找到的文件，而不是最后报告所有内容.

I am trying to use an UWP app service to provide some non-UI processing service to other app including the host app. For responsiveness, I want to return the result progressively. Think about grep-ping a folder for files containing a certain string: It would be better to report the files as we found it instead of reporting everything at the end.

所以我的问题是:目前的 UWP 技术可以实现这种场景吗?(我认为通过使用多应用实例方法进行轮询可能是可能的.我想知道应用服务是否有更简单的方法.)

So my question is: Can this scenario be achieved with the current UWP technology? (I think it is probably possible via polling using the multiple app instances approach. I want to know if there's an easier method with app service.)

推荐答案

AppServiceConnection 是一个双向通信管道，因此您可以使用它来将进度更新从服务传送到客户端.不需要投票.客户端连接后，只需在您的服务实现中保留对 AppServiceConnection 实例的引用，然后调用 SendMessageAsync 随时向客户端发送进度更新.

The AppServiceConnection is a bi-directional communication pipe, so you can use it to communicate progress updates from the service to the client. No need for polling. Just retain a reference to the AppServiceConnection instance in your service implementation once the client has connected and then call SendMessageAsync to send progress updates to client whenever you want.

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