How do you use the iPhone Reachability Notifications [duplicate] - ios

Question

This question already has answers here:
How can I check for an active Internet connection on iOS or macOS?
(46 answers)
Closed 9 years ago.
I have the following code:
- (void) testInternetConnection {
internetConnection = [Reachability reachabilityWithHostname:#"www.google.com"];
// Internet is reachable
internetConnection.reachableBlock = ^(Reachability*reach)
{
// Update the UI on the main thread
dispatch_async(dispatch_get_main_queue(), ^{
NSLog(#"Yayyy, we have the interwebs!");
});
};
// Internet is not reachable
internetConnection.unreachableBlock = ^(Reachability*reach)
{
// Update the UI on the main thread
dispatch_async(dispatch_get_main_queue(), ^{
NSLog(#"Someone broke the internet :(");
});
};
[internetConnection startNotifier];
}
How do I tell if my internet has changed using the notifier? I understand the singleton method and use that when needed.

Answer 1

try to test your code on device when ever possible.
ensure
BOOL status = ([[Reachability reachabilityForInternetConnection] currentReachabilityStatus] != NotReachable)
, on device if you are testing in simulator
The simulator just uses your default Mac network connection so you need to disconnect your mac from the network and the simulator will experience the same loss of network connectivity.
Thanks

Answer 2

you can check reachability by this code,
//to make reachability object
reachability = [Reachability reachabilityForInternetConnection];
//start notifier
[reachability startNotifier];
//get reachability status
remoteHostStatus = [reachability currentReachabilityStatus];
Thanks.

Answer 3

//First import Reachability classes
// In Appdelegate .h file create variables
Reachability *hostReach,*internetReach,*wifiReach;
Reachability *internetReachable;
// After that add this code didfinish lonching with options
internetReachable = [Reachability reachabilityForInternetConnection] ;
[internetReachable startNotifier];
-(BOOL) connectedToNetwork
{
const char *host_name = "www.google.com";
BOOL _isDataSourceAvailable = NO;
Boolean success;
SCNetworkReachabilityRef reachability = SCNetworkReachabilityCreateWithName(NULL,host_name);
SCNetworkReachabilityFlags flags;
success = SCNetworkReachabilityGetFlags(reachability, &flags);
_isDataSourceAvailable = success &&
(flags & kSCNetworkFlagsReachable) &&
!(flags & kSCNetworkFlagsConnectionRequired);
CFRelease(reachability);
return _isDataSourceAvailable;
}