How to use Reachability in Network Extension, it never callback

Question

I use Reachability demo to check wifi connect, it work fine, now, i want use it in a network extension

Set callback is ok, but it nerver callback even network connect is change.

SCNetworkReachabilityContext context = {0, (__bridge void *)(self), NULL, NULL, NULL};
if (SCNetworkReachabilitySetCallback(_reachabilityRef, ReachabilityCallback, &context)) // return YES {
    if (SCNetworkReachabilityScheduleWithRunLoop(_reachabilityRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode)) { //return YES
    //...
    }
}

never call this:

static void ReachabilityCallback(SCNetworkReachabilityRef target, SCNetworkReachabilityFlags flags, void* info){
    //...
}

Possible duplicate of [How to use SCNetworkReachability in Swift](https://stackoverflow.com/questions/25623272/how-to-use-scnetworkreachability-in-swift) — Krunal, Jun 14 '17 at 09:47
Thanks, i read this question, but want my problem is use this code in network extension — waitianlou, Jun 14 '17 at 09:56
You can answer, your own question. Please share solution here by posting an answer, so It would be helpful to others. — Krunal, Jul 04 '17 at 04:43

score 0 · Answer 1 · answered Jul 04 '17 at 06:14

0

Solve the problem by set callback in main thread，because if the thread is dead，it will never call back.

answered Jul 04 '17 at 06:14

waitianlou

563
3
15

How to use Reachability in Network Extension, it never callback

1 Answers1