Can any one suggest sample for Reachability check when wifi loss inter net connection

Question

I have added reachability into my project following things are working fine. 1.It Check successfully host request, wifi or mobile date active connection.. but i have tested the reachability of wifi with loss of internet connection , it may give the results like reachable via wifi...(example like you have active wifi connection but no internet received form wifi)

I did added NSTimers and achieved exact result, but i want to achieve the this thing by reachability so can anyone help to solve my issue...

Answer 1

Here is my answer ,

I did not initialize timers just using completion blocks , but completion blocks with delay almost equal to NSTIMERS.

I have created api for reachability with all conditions..

just attach sample method to check the all conditions..

-(void) blocksWithReachabiltyCheck :(bool) r_Status
{
    __weak id weakSelf = self;
    callBack = ^{

        double delayInSeconds = 10.0;
        dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
        dispatch_after(popTime, dispatch_get_main_queue(), ^(void){

            id strongSelf = weakSelf;

            if (!strongSelf) {
                return;
            }
            // Schedule the timer again
            //callBack();
            [weakSelf targetMethod:r_Status];
        });

    };

    // Start the timer for the first time
    callBack();
}

-(void)targetMethod:(bool)sender
{
    NSString *remoteHostName = @"www.apple.com";
    // NSString *remoteHostLabelFormatString = NSLocalizedString(@"Remote Host: %@", @"Remote host label format string");
    //    self.remoteHostLabel.text = [NSString stringWithFormat:remoteHostLabelFormatString, remoteHostName];
    // NSLog(@"%@",remoteHostLabelFormatString);
    self.hostReachability = [Reachability reachabilityWithHostName:remoteHostName];
    [self.hostReachability startNotifier];


    self.internetReachability = [Reachability reachabilityForInternetConnection];
    [self.internetReachability startNotifier];


    self.wifiReachability = [Reachability reachabilityForLocalWiFi];
    [self.wifiReachability startNotifier];

    if (sender == YES)
    {
        callBack();
    }

}



  //stop timer
    -(void) RXStopNotifier
    {

        [self blocksWithReachabiltyCheck:NO];
    }
    //start notifier with host name
    -(void) RXStartNotifier:(NSString *)hostNameString
    {

        [self blocksWithReachabiltyCheck:YES];
        hostName  = hostNameString;
    }

@synthesize callBack;
@property (copy)__block void (^callBack)(void) ;

//Notification method
- (void) RXSeachabilityChanged:(NSNotification *)note
{
    if (timerFlag == false)
    {
        timerFlag = true;
        Reachability* curReach = [note object];
        NetworkStatus netStatus = [curReach currentReachabilityStatus];;
        statusReach = 0;

        switch (netStatus)
        {
            case NotReachable:        {
                NSLog(@"Not Access ");
                statusReach = 0;
                break;
            }

            case ReachableViaWWAN:
                //            {
                //                NSLog(@"Reachable WWAN");
                //                statusReach = 1;
                //                //            imageView.image = [UIImage imageNamed:@"WWAN5.png"];
                //                break;
                //            }
            case ReachableViaWiFi:        {
                if (instantFlag == NO)
                {

                    NSLog(@"Reachable WIFI or Reachable WWAN");
                    NSURLRequest *request = [[NSURLRequest alloc] initWithURL:[NSURL URLWithString:hostName] cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:1];
                    NSURLResponse *response = nil;
                    NSError *error = nil;
                    [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
                    //NSLog(@"response %d", [(NSHTTPURLResponse *)response statusCode]);
                    if ([(NSHTTPURLResponse *)response statusCode] == 200) {

                        statusReach = 1;
                        NSLog(@"Success");
                    }
                    else
                    {


                        statusReach = 2;
                        NSLog(@"Failed");
                    }
                }
                else
                {
                    statusReach = 1;
                }
                break;
            }
        }


    }
}

if any one having doubts just reach me....