AFNetworking Reachability Return FALSE value?

Question

I have internet connection and can browsing with browser.

Here is my codes to check Reachability with AFNetworking.

- (BOOL)connected {
    return [AFNetworkReachabilityManager sharedManager].reachable;
}

And In ViewDidLoad

BOOL isOnline = [self connected];

    if(isOnline == YES)
    {
        NSLog(@"YES");
    }

    else
    {
        NSLog(@"NO");
    }

It's only showing NO and i don't know why is it?

Is there easiest way to check Reachability with AFNetworking?

score 18 · Accepted Answer · answered Feb 23 '14 at 07:47

18

I guess startMonitoring isn't called, try to do the below:

- (void)viewDidLoad {
     [super viewDidLoad];
      ....
     [[AFNetworkReachabilityManager sharedManager] startMonitoring];   
}

answered Feb 23 '14 at 07:47

Tarek Hallak

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Anyway it should be there bro, but it is weird it works fine, try to register for changes, check this http://stackoverflow.com/a/20035987/1262634. – Tarek Hallak Feb 23 '14 at 08:09
When i test with these code , it's even doesn't show NSLog bro. [[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) { NSLog(@"Reachability: %@", AFStringFromNetworkReachabilityStatus(status)); }]; – Fire Fist Feb 23 '14 at 08:20
I also added #import "AFNetworking.h" #import "AFNetworkReachabilityManager.h". What do i need? – Fire Fist Feb 23 '14 at 08:21
@Yahiko do test on the real device? try to turn off wireless, switch to cellular data then back to wireless etc.. – Tarek Hallak Feb 23 '14 at 08:31

score 1 · Answer 2 · edited May 23 '17 at 12:18

If above answer is not solving your issue, then your problem might be due to calling [AFNetworkReachabilityManager sharedManager].reachable while it is in the middle of 'startMonitoring' process where it would always return NO.

I had the same issue. I was calling web service while AFNetworkReachabilityManager had not finished monitoring process and was returning reachable = NO although I had working internet connection.

- (void) callWebService {
    NSLog(@"Calling Webservice...");

    if ([AFNetworkReachabilityManager sharedManager].reachable == NO) {
        NSLog(@"%@", kErrorNoInternet);
        return;
    }

    // Now, proceed to call webservice....
}

So, to solve this I did a trick. Called web service after some delay (in this example 0.05 sec).

Before:

[self callWebService];

Output:

After:

[self performSelector:@selector(callWebService) withObject:nil afterDelay:0.3]; // you can set delay value as per your choice

Output:

You can see from the output, the time difference is hardly 0.05 sec (exact value 0.048 sec).

Hope this will help.

You can also check if networkReachabilityStatus == AFNetworkReachabilityStatusUnknown. If status is Unknown then you can assume that network can be reachable and make a request — sliwinski.lukas, Jan 10 '17 at 09:45

score 0 · Answer 3 · answered Feb 12 '18 at 11:09

instead of waiting you can use blocks just to make sure that your web service will be only called when network is available.

[[AFNetworkReachabilityManager sharedManager]startMonitoring];

[[AFNetworkReachabilityManager sharedManager]setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status)
{
    if (status == AFNetworkReachabilityStatusReachableViaWWAN || status == AFNetworkReachabilityStatusReachableViaWiFi) 
{

        // connected. you can call your web service here

    }else
{
        // internet disconnected
    }
}];

AFNetworking Reachability Return FALSE value?

3 Answers3