Trouble firing segue

Question

Since I'm using a tapku calendar I want to fire a manual segue when a date is pressed. So I instantiate the view controller that I want to segue to, the segue, and then perform the segue.

DisplayScheduleViewController *vc = [[DisplayScheduleViewController alloc] init];

mySegue = [[UIStoryboardSegue alloc] initWithIdentifier:@"Day G" source:self destination:vc];

[self performSegueWithIdentifier:@"Day G" sender:self];

}

However, the program crashes once a date is pressed and this is the exception message:

terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Receiver () has no segue with identifier 'Day G''

also before running the program i get this warning message in the storyboard:

Scene is unreachable due to lack of entry points and does not have an identifier for runtime access via -instantiateViewControllerWithIdentifier:.

Do you know how to make it work?

Thanks

Do you already have a segue hooked up in the storyboard to a DisplayScheduleViewController? — rdelmar
I can't have a segue hooked up because I'm seguing from the cells of a tapku calendar. That's why I have to manually segue. Do you know how to do it correctly? — user1601259
The whole purpose of segues is to make transitions between view controllers in the storyboard easy to do. You probably don't want to do a segue in this case. So, what you need to do depends on your controller structure and how you want to do the transition. — rdelmar

Jon Hess Jon Hess · Accepted Answer · 2013-02-15T07:08:37

Here's how you can wire up a segue up in a storyboard and the invoke it from code:

Create the two view controllers in the storyboard.
Control drag from the view controller icon in the source scene to the destination scene.
Choose the appropriate type of segue.
In the inspector, assign an identifier to the segue.
At runtime, from the source view controller, invoke

[self performSegueWithIdentifier:<#identifier#> sender:nil];
Override -[UIViewController prepareForSegue:sender:] in the source view controller to pass state between the source and destination controllers.

As an aside, the -[UIStoryboardSegue initWithIdentifier:source:destination:] method is there for you to override when creating custom segues subclass that will be instantiated from the storyboard. Creating storyboard segue instances directly like this isn't applicable.

Trouble firing segue

3 Answers