CODEWITHSUNDEEP
iosobjective-csegue
Sudheer Kolasani
Sudheer Kolasani

Reputation: 283

How to Stop Pushing segue when some condition Happens?

How to Stop Pushing segue when some condition is failed 

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{

    internet *myclass = [[internet alloc]init];
    if ([myclass connectedToInternet]) {


    if ([[segue identifier] isEqualToString:@"showShoping"]) {
        _pass = @"shop";
        MyTabController *mvc = (MyTabController *)segue.destinationViewController;
        mvc.myCategory = _pass;
    }
    if ([[segue identifier] isEqualToString:@"showTravel"]) {
        _pass = @"travel";
        MyTabController *mvc = (MyTabController *)segue.destinationViewController;
        mvc.myCategory = _pass;
    }
    if ([[segue identifier] isEqualToString:@"showFood"]) {
        _pass = @"food";
        MyTabController *mvc = (MyTabController *)segue.destinationViewController;
        mvc.myCategory = _pass;
    }
    else{

        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"No Internet!"
                                                        message:@"No working internet connection is found."
                                                       delegate:nil
                                              cancelButtonTitle:@"OK"
                                              otherButtonTitles:nil];
        [alert show];

    }

}

Thanks

Upvotes: 2

Views: 56

Answers (1)

yirenjun
yirenjun

Reputation: 46

- (BOOL)shouldPerformSegueWithIdentifier:(NSString *)identifier sender:(nullable id)sender NS_AVAILABLE_IOS(6_0);

you can override this method, return No to stop perform segue when some condition happens.

for example

- (BOOL)shouldPerformSegueWithIdentifier:(NSString *)identifier sender:(id)sender {



    if ([identifier isEqualToString:@"showShoping" ]) {



        return NO;

  }
 return YES;

}

}

Upvotes: 2

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