更改UINavigationController的動畫NavigationBar

Question

現在，當我使用[self.navigationController setNavigationBarHidden：NO animated：YES];

導航欄從右向左飛行，有沒有辦法從上到下放下它？

Answer 1

給這個一展身手：

CATransition *transition = [CATransition animation]; 
transition.duration = kAnimationDuration; 
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; 
transition.type = kCATransitionPush; 
transition.subtype = kCATransitionFromTop; 
transition.delegate = self; 
[self.navigationController.view.layer addAnimation:transition forKey:nil]; 

self.navigationController.navigationBarHidden = NO; 
[self.navigationController pushViewController:tableViewController animated:YES]; 

工作對我來說太棒了。

來源：http://www.iphonedevsdk.com/forum/iphone-sdk-development/25045-navigation-controller-custom-animation.html