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androidiphoneiosreachability

Need same callback in ios as "ConnectivityManager.CONNECTIVITY_ACTION" in android

I am new to ios development. I want callback when connectivity change (or ip address of device is changed). I have added Reachability (sample code of Apple) in my application. But it does not give callback.

I have done same thing in Android - receiving "ConnectivityManager.CONNECTIVITY_ACTION" which detects a change in network connectivity has occurred.

Is there any API available in iOS which can do similar functionality as CONNECTIVITY_ACTION ? Any help is appreciated. Thanks...

Solution

  • Use SCNetworkReachabilitySetCallback:

    Boolean SCNetworkReachabilitySetCallback (
   SCNetworkReachabilityRef target,
   SCNetworkReachabilityCallBack callout,
   SCNetworkReachabilityContext *context
);

    So your callback method will look like this

    typedef void (*SCNetworkReachabilityCallBack) (
   SCNetworkReachabilityRef target,
   SCNetworkReachabilityFlags flags,
   void *info
);

    meaning you first declare the callback

    static void MyReachabilityCallback(SCNetworkReachabilityRef target, SCNetworkReachabilityFlags flags, void* info)
{
 // do somthing
}

    and then register it:

    SCNetworkReachabilityContext ctx = {0, self, NULL, NULL, NULL};
if(SCNetworkReachabilitySetCallback(reachabilityRef, MyReachabilityCallback, &ctx)) {
 // registered callback