segue.identifier isEqualToString:@"segue1" is always null. IOS 6.1 storyboard

Question

I can't figure out why my segue.identifier is always returning null. I set the segue identifiers in the storboard.

ViewController1

-(void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
     NSLog(@"prepared %@",segue.identifier);
     if([[segue identifier] isEqualToString:@"segue1"] ){
     NSLog(@"segue is equal to 1");
     }
 }

ViewController2

- (IBAction)unwindFromSegue:(UIStoryboardSegue *)segue {

    NSLog(@"unwinded %@",segue.identifier);
}

The log message is always null so if statement is never true. Any thoughts why i cant get the identifier?

EDIT:

I made a whole new project for testing. It's a single view application with ViewController and SecondViewController. In the storyboard I made a popover segue connection from a button in View Controller to SecondViewController and set the segue identifier to segue1.

On SecondViewController I made a back button and connected it to the unwindFromSegue in my ViewController. I also added prepareForSegue in the SecondViewController.

ViewController.h

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController

@end

ViewController.m

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)unwindFromSegue:(UIStoryboardSegue *)segue {
NSLog(@"unwinded %@",segue.identifier);
}
@end

SecondViewController.h

#import <UIKit/UIKit.h>

@interface SecondViewController : UIViewController

@end

SecondViewController.m

#import "SecondViewController.h"

@interface SecondViewController ()

@end

@implementation SecondViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)
 nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
    // Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
//was just testing unwindFromSegue here. Didn't mean to post here, 
//but I will keep it in with an answer referring to it
//- (IBAction)unwindFromSegue:(UIStoryboardSegue *)segue{
//NSLog(@"unwind in second %@",segue.identifier);
//}


- (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
NSLog(@"prepare %@",segue.identifier);

}

@end

Hope this helps. Thanks

IF you set the identifier on the correct segue, and the identifier is segue1, then this will work. So, one of those things is not right, or you set up the unwind segue incorrectly. Can you describe what you did? — rdelmar
I did have segue1 as the identifier for the popover segue. I added more to my question. Can you see any issues. Thanks — Gulfer

Michael Reneer Michael Reneer · Accepted Answer · 2013-04-23T04:35:23

When you set the segue in the storyboard you also have to assign it an identifier. In your case "segue1".

segue.identifier isEqualToString:@"segue1" is always null. IOS 6.1 storyboard

2 Answers