Question

I am using mapView with an callout from a simple annotation. I used the below delegate method

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

    lbhProfileMapPoint *mp = (lbhProfileMapPoint *) view.annotation;
    NSLog(@"mp objectID: %@", mp.objectID);
    self.objectId = mp.objectID;
    [[lbhVariables sharedInstance] setMapViewChosenObjectId:self.objectId];

    //[self performSegueWithIdentifier:@"profileSegue" sender:self];
    lbhProfileViewController *pvc = [[lbhProfileViewController alloc] init];
    [pvc setObjectId:self.objectId];
    [self.navigationController pushViewController:pvc animated:NO];
}

It doesn’t go to the viewcontroller but keeps saying

Unbalanced calls to begin/end appearance transitions for <lbhProfileViewController: 0x1f017ec0>.

actually the lbhProfileViewController, It’s connected within my storyboard via other viewcontrollers. But with this accessory callout, I want to manually call it. As you can see I have

//[self performSegueWithIdentifier:@"profileSegue" sender:self];

in the code, but if I use this method instead, it still gives me unbalanced calls.

Answer 1

If you use performSegueWithIdentifier:sender: method you should also use prepareForSegue:sender: method. Your code in prepareForSegue:sender: method will be something like this:

-(void)prepareForSegue:(UIStoryBoardSegue*) segue sender:(id) sender
{
     if([segue.identifier isEqualToString:@"profileSegue"]){
         lbhProfileViewController *pvc = [segue destinationViewController];
         [[segue destinationViewController]setObject:sender.objectId];
     }
}

Also to use this, you will need a segue directly connecting to the lbhProfileViewController from the view controller calling the map delegate method.