Blank ViewController after calloutAccessoryControlTapped

Question

I have a MKMapView and some markers on the map. When user taps a marker an MKAnnotationView comes up with a title and a button of type UIButtonTypeDetailDisclosure.

When the user taps the button it should go to another viewController. The problem is that when the new viewController comes up , it is blank and it doesn't have the format that I have gave it in the storyboard.

Here is the code for calloutAccessoryControlTapped:

- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control {

    MnhmeioViewController * destViewController = [[MnhmeioViewController alloc] init];

    Annotation *which=view.annotation;
    NSString *whichString=which.title;

    Group *tmpGroup;

    for(int i=0; i<allGroups.count; i++) {

        Group *checkGroup=[allGroups objectAtIndex:i];

        if ([checkGroup.title isEqualToString:whichString]) {
            tmpGroup=checkGroup;
            break;
        }
    }

    NSString *mnhmeioName=tmpGroup.title;
    destViewController.titleNavBar = mnhmeioName;
    destViewController.selectedArthro = tmpGroup;

    [self.navigationController pushViewController:destViewController animated:YES];
}

nsgulliver · Accepted Answer · 2013-11-29T10:54:31.453

1

You need to initialize the MnhmeioViewController with NibName or identifier from Storyboard. Also make your MnhmeioViewController as property on class level , it is better approach when adding view controllers.

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"YourStoryBoard" bundle:nil];
MnhmeioViewController * destViewController = [storyboard instantiateViewControllerWithIdentifier:@"MnhmeioViewController"];

edited Nov 29 '13 at 10:54

answered Nov 29 '13 at 10:17

nsgulliver

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I get the exception "No known class method for selector "instantiateViewControllerWithIdentifier". – hoya21 Nov 29 '13 at 10:48
Make sure that identifier you have given for your view controller in the storyboard, you are instantiating with the same identifier, and initilize your storyboard also – nsgulliver Nov 29 '13 at 10:53
I had to initialize my storyboard. Many Thanks! – hoya21 Nov 29 '13 at 10:54
yes this is what i wrote in the above comment, good that you fixed it. – nsgulliver Nov 29 '13 at 10:54

Blank ViewController after calloutAccessoryControlTapped

1 Answers1