从UINavigationController展开到UIViewController

Question

I have a MYViewController which presets the MYNavigationController with a custom segue like

- (void)perform
{
    [self.sourceViewController presentViewController:self.destinationViewController animated:NO completion:nil];
}

Also I have an unwind segue, like

- (void)perform
{
    [self.sourceViewController dismissViewControllerAnimated:NO completion:nil];
}

In a storyboard there is a connection between MYNavigationController and Exit placeholder in Navigation Controller Scene – the unwind segue with identifier unwindToVC1 .

MYNavigationController looks like this

...

- (UIStoryboardSegue *)segueForUnwindingToViewController:(UIViewController *)toViewController fromViewController:(UIViewController *)fromViewController identifier:(NSString *)identifier 
{
    MYCustomUnwindSegue *segue = [[MYCustomUnwindSegue alloc] initWithIdentifier:identifier source:fromViewController destination:toViewController];

    return segue;
}

- (IBAction)unwindToVC1:(UIStoryboardSegue *)sender
{
}

- (IBAction)dissmissMYNavigationController:(id)sender
{
    [self performSegueWithIdentifier:@"unwindToVC1" sender:sender];
}

...

So when I call -dissmissMYNavigationController nothing happens. Even -segueForUnwindingToViewController:fromViewController:identifier: isn't called.

What am I doing wrong? Thanks!

Answer 1

If you want to remove the top ViewController from a navigator controller you have to call popViewControllerAnimated: . dismissViewControllerAnimated is used when you present a modal ViewController.

Answer 2

Seems like it wasn't clear for me how unwinding works, so

- (UIStoryboardSegue *)segueForUnwindingToViewController:(UIViewController *)toViewController fromViewController:(UIViewController *)fromViewController identifier:(NSString *)identifier 
{
    MYCustomUnwindSegue *segue = [[MYCustomUnwindSegue alloc] initWithIdentifier:identifier source:fromViewController destination:toViewController];

    return segue;
}

- (IBAction)unwindToVC1:(UIStoryboardSegue *)sender
{
}

should be in MYViewController , not in MYNavigationController