Spin Segue

NASpinSegue.m

#import "NASpinSegue.h"

@implementation NASpinSegue


- (void)perform{
    
    UIViewController *sourceViewController = (UIViewController *)self.sourceViewController;
    UIViewController *destinationViewController = (UIViewController *)self.destinationViewController;
    
    CGAffineTransform scale  = CGAffineTransformScale(CGAffineTransformIdentity, 0.01, 0.01);
    CGAffineTransform rotate = CGAffineTransformRotate(CGAffineTransformIdentity, -M_PI);
    
    [UIView animateWithDuration:1.0f delay:0.0f options:UIViewAnimationOptionAllowUserInteraction animations:^{
        
        sourceViewController.view.transform = CGAffineTransformConcat(rotate, scale);

    } completion:^(BOOL finished){
        
        [sourceViewController presentModalViewController:destinationViewController animated:NO];
        destinationViewController.view.transform = CGAffineTransformConcat(rotate, scale);

        [UIView beginAnimations:nil context:NULL];
        [UIView setAnimationDuration:0.9];
        destinationViewController.view.transform = CGAffineTransformIdentity;
        [UIView commitAnimations];

    }];
}

@end