iPhone SDK:暂停NSURLConnection? [英] iphone sdk: pausing NSURLConnection?

问题描述

在我的应用程序中，我使用户能够从服务器下载文件.为此，我使用NSURLConnection.我想让用户可以通过点击按钮来暂停和继续下载.除了调用cancel方法然后创建一个新的NSURLConnection之外，我找不到任何其他方法.那么有没有一种优雅的方式来暂停NSURLConnection?

In my app I give the user the ability to download files from a server. For that I use NSURLConnection. I would like to give the user the ability to pause and resume the download by tapping a button. I couldn't find any way to do this besides calling the cancel method and then creating a new NSURLConnection. So is there an elegant way to pause NSURLConnection?

谢谢

推荐答案

这是我所知道的唯一方法.如果您的服务器支持"Range:"标头，则可以创建一个新连接，并从另一个断开的位置开始连接.

That's the only method I'm aware of. If your server supports the "Range:" header, you can then create a new connection and have it pick up where the other one left off.

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