Flip transition uinavigationcontroller push

Question

I am pushing a UIViewController in a navigation stack using the following code

[UIView animateWithDuration:0.75
                     animations:^{
                   


        

Answer 1

//FirstViewController
[UIView beginAnimations:@"animation" context:nil];
[UIView setAnimationDuration:0.8]; 
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.navigationController.view cache:NO];
[self.navigationController pushViewController: viewcontroller
 animated:NO];
[UIView commitAnimations];

//SecondViewController
[UIView beginAnimations:@"animation" context:nil];
[UIView setAnimationDuration:0.8];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.navigationController.view cache:NO]; 
[self.navigationController popViewControllerAnimated:NO];
[UIView commitAnimations];