pushViewController不能以编程方式与情节提要一起使用

Question

When i push a view using the segues (directly by dragging it on the storyboard) it works fine, and the next view is loaded. However, when i try to implement all this programmatically to push a view when i click on the right arrow of the PIN (in Maps), i am a bit confused:

EDIT

 -(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
    NSLog(@"calloutAccessoryControlTapped: enseigneDeLaStation");
    [self performSegueWithIdentifer:@"You identifier" sender:self];
}

i got this error:

Receiver Type 'MyFirstViewController' for instance message does not declare a method with selector performSegueWithIdentifer:sender:

Answer 1

You have to use UIViewController s instance method performSegueWithIdentifier:sender: . It initiates the segue with the specified identifier from the view controller's storyboard file programmatically.

Here is the documentation .

Example code would be: (assuming you are calling this in a view controller.

[self performSegueWithIdentifier:@"Your identifier" sender:self];

So for your code it would be:

-(IBAction)goToNextView{
    NSLog(@"The button is clicked");
    [self performSegueWithIdentifier:@"Your identifier" sender:self];
}

Don't forget to set the segue identifier in the interface builder. Also, do make sure that you have the same identifier in both your code and the interface builder.

Answer 2

Malek is correct. Pfitz example does return

Receiver Type 'MyFirstViewController' for instance message does not declare a method with selector performSegueWithIdentifer:sender:

This is due to an typo. The correct method is

[self performSegueWithIdentifier:@"You identifier" sender:self];