跳转方式进阶【原理是push，但是加入的动画是模态跳转方式】

今天没事研究了一下跳转方式；发现push还可以有莫泰的效果，甚至其他更多的效果；废话不多说，上代码：

//方法一：模态跳转，前提是利用navigationcontroller这个容器

// UserManagerViewController *userManagerVC = [[UserManagerViewController alloc] init];

// UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:userManagerVC];

// [self presentViewController:nav animated:YES completion:nil];

//方法二：push，只不过有莫泰跳转的方式，这种方法更好

UserManagerViewController *userManagerVC = [[UserManagerViewController alloc] init];

CATransition *animation = [CATransition animation];

animation.duration = 0.2;

animation.type = kCATransitionMoveIn;

animation.subtype = kCATransitionFromTop;

animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault];

[self.navigationController.view.layer addAnimation:animation forKey:nil];

[self.navigationController pushViewController:userManagerVC animated:NO];//自定义动画，此处要设为NO