OSX/Swift:建立/恢复互联网连接后调用功能 [英] OSX/Swift: Call a function when internet connection is established/restored

问题描述

我想做的是在建立或恢复互联网连接后调用一些代码.

What I want to do is call some code when the internet connection is established or restored.

我知道有一些解决方案可以让我测试Internet连接是否处于活动状态，但是我想知道是否有一种方法可以通过Internet连接变为活动状态来触发功能.

I know there are solutions out there that let me test whether an internet connection is active or not, but I am wondering if there is a way for a function to be triggered by the internet connection becoming active.

如果没有，最好的解决方法是什么?每x秒检查一次连接?谢谢.

If not, what is the best workaround? Checking for a connection every x seconds? Thanks.

推荐答案

SCNetworkReachability API，以在IP地址或主机名的可达性状态更改时生成通知.创建一个SCNetworkReachabilityRef，然后设置一个回调，当检测到网络更改时将调用它.

The SCNetworkReachability APIs can be configured to generate notifications when the reachability status of an IP address or hostname changes. Create a SCNetworkReachabilityRef, then set a callback, and it will be called when a network change is detected.

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