navigationController修改默认动画

1，push动画

CATransition *transition = [CATransitionanimation];

            transition.duration =0.5;

            transition.timingFunction = [CAMediaTimingFunctionfunctionWithName:kCAMediaTimingFunctionEaseInEaseOut];

//            transition.type = kCATransitionPush;

            transition.subtype =kCATransitionFromTop;

            transition.delegate =self;

            [self.navigationController.view.layeraddAnimation:transition forKey:nil];

            self.navigationController.navigationBarHidden =NO;

            [self.navigationControllerpushViewController:myCustomerServiceVCanimated:NO];

          

2,pop动画

CATransition *transition = [CATransitionanimation];

    transition.duration =0.4;

    transition.timingFunction = [CAMediaTimingFunctionfunctionWithName:kCAMediaTimingFunctionEaseInEaseOut];

    transition.type =kCATransitionReveal;

    transition.subtype =kCATransitionFromBottom;

    transition.delegate =self;

    [self.navigationController.view.layeraddAnimation:transition forKey:nil];

    

    self.navigationController.navigationBarHidden =NO;

    [self.navigationControllerpopViewControllerAnimated:NO];