view class to view classs transition with animation

TYPE 1:

Aboutus *second = [[Aboutus alloc] initWithNibName:nil bundle:nil];

 second.modalTransitionStyle = UIModalTransitionStyleCoverVertical;

 [self presentModalViewController:second animated:YES];

Type 2:

[UIView transitionWithView:self.view duration:1.0 options:UIViewAnimationOptionTransitionFlipFromRight animations:^{

                 Aboutus *second1 = [[Aboutus alloc] init];

                 [self presentModalViewController:second1 animated:YES];

                } completion:YES];