Navigation bar gets adjusted after calling completeTransition: in custom transition

Question

My goal is to provide zooming modal transition from for the user from a view similar as springboard icons zoom in when launching apps.

The presented view controller

Answer 1

This is still a hack, based on Ondřej Mirtes' one but it works better if you have an in-call status bar and you're on iOS8

if([toViewController isKindOfClass:[UINavigationController class]]) { 
  UINavigationController *navCtrl = (UINavigationController *)toViewController;
  UINavigationBar *navBar = navCtrl.navigationBar;
  if(navBar.frame.origin.y == 0 && navBar.frame.size.height == 44) {
    navBar.frame = CGRectMake(0, 0, navBar.frame.size.width, fmin(44 + [UIApplication sharedApplication].statusBarFrame.size.height, 64)); 
  }
}

Remains ugly though :/