UINavigationController修改默认的动画

1.添加QuartzCore并引入头文件 

#import  <QuartzCore/CoreAnimation.h>

2. PushView 的动画修改 

       
 CATransition *transition = [CATransition animation];
        transition.duration = 1;
        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:viewController animated:NO]; 

3.popView的动画

CATransition *transition = [CATransition animation];
    transition.duration =0.4;
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    transition.type = kCATransitionReveal;
    //transition.subtype = kCATransitionFromBottom;
    transition.delegate = self;
    [self.navigationController.view.layer addAnimation:transition forKey:nil];
    
    self.navigationController.navigationBarHidden = NO;

    [self.navigationController popViewControllerAnimated:NO];