Using pushViewController is very slow on iPad

Question

I'm trying to move from one UIViewController to another using -pushViewController:animated using the below snipped :

 SomeController *tabBar = [self.storyboard instantiateViewControllerWithIdentifier:@"mycus"];

[self.navigationController pushViewController:tabBar animated:YES];

Moving from one UIViewController (which has no UIViews or images) has a 3 second delay before moving. What is causing this issue and how would I solve it?

Answer 1

For storyboard, click on the segue you have created, give it an identifier like "someSegue".

Next you will want to trigger the prepareForSegue delegate in your viewcontroller doing the following...

 [self performSegueWithIdentifier:@"SomeSegue" sender:nil];

..Then you will want to include the delegate method in your view controller and do any preparing you might want before the next view controller is initialised.

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

SomeController *vc = [segue destinationViewController];

// Here you will want to do your prep e.g. pass iVars etc from one controller to the other.

}