Check if device is connected to i-net

Question

In need to check if the phone is connected to the internet.

I currently implemented this check as followed:

NSString *connectionString = [[NSString alloc]initWithContentsOfURL:[NSURL URLWithString:@"http://www.google.com/ncr"] encoding:NSUTF8StringEncoding error:nil];

//If user isn't connected
if ([connectionString length] == 0){
    //Do this
} else {
    //Do that
}

This check works perfectly on WIFI networks! But as soon as the user is on a 3G / EDGE network the connectionString = null

How can I improve this check, even on 3G networks?

Thanks

See http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk it might help you. — 4ndrew, Dec 14 '11 at 10:59

score 2 · Answer 1 · answered Dec 14 '11 at 10:59

2

Apple has made a great class for doing this: Reachability.

It can tell you wether you are connect to WiFi or WAN (3G and GRPS).

answered Dec 14 '11 at 10:59

rckoenes

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I imported Reachability.h/.m into my project. – Alex van Rijs Dec 14 '11 at 11:39
And I implemented updatedInterfaceWithReachability and reachabilityChanged. – Alex van Rijs Dec 14 '11 at 11:40
But where and how can I check, if the user IS connected to the internet, regardless if its over WIFI or 3G? – Alex van Rijs Dec 14 '11 at 11:42

Check if device is connected to i-net

1 Answers1