iOS自定义push动画-从下向上push

– (void)push {

CATransition *transition = [CATransition animation];

transition.duration = 0.4f;

transition.type = kCATransitionMoveIn;

//动画过渡方向

transition.subtype = kCATransitionFromTop;

[self.navigationController.view.layer addAnimation:transition forKey:kCATransition];

ViewController2 *newVC = [ViewController2 new];

[self.navigationController pushViewController:newVC animated:NO];

}

– (void)pop {

CATransition *transition = [CATransition animation];

transition.duration = 0.4f;

transition.type = kCATransitionReveal;

transition.subtype = kCATransitionFromBottom;

//动画速度,kCAMediaTimingFunctionEaseInEaseOut创建了一个慢慢加速然后再慢慢减速的过程

transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];

[self.navigationController.view.layer addAnimation:transition forKey:kCATransition];

[self.navigationController popViewControllerAnimated:NO];

}