我正在尝试使用 UIViewAnimationTransitionCurlUp 在两个视图之间进行转换。
我的应用程序在横向（左和右）下运行，我需要从右到左的转换。
UIViewAnimationTransitionCurlUp 从下到上工作（而不是像我想要的从右到左）。
我的第一个版本是：
self.oneView = [[[UIImageView alloc] initWithFrame:frame] autorelease];
self.twoView = [[[UIImageView alloc] initWithFrame:frame] autorelease];
[self.view addSubview:self.oneView];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES];
[self.oneView removeFromSuperview];
[self.view addSubview:twoView];
[UIView commitAnimations];
它在横向模式下工作，主页按钮位于右侧（根据需要从右到左从右上角开始转换）。
但是，当设备旋转到左侧的主页按钮时，卷曲效果是颠倒的：从左到右从左下角开始）。
动画似乎不知道设备方向。
我更改了代码以便使用中间容器视图（在 self.view 和
self.oneView/twoView):
self.containerView = [[[UIView alloc] initWithFrame:frame] autorelease];
self.oneView = [[[UIImageView alloc] initWithFrame:frame] autorelease];
self.twoView = [[[UIImageView alloc] initWithFrame:frame] autorelease];
[self.view addSubview:self.containerView];
[self.containerView addSubview:self.oneView]
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.containerView cache:YES];
[self.oneView removeFromSuperview];
[self.containerView addSubview:twoView];
[UIView commitAnimations];
Now 之间），它知道设备旋转并在横向方向上都能正常工作。
但它是从下到上工作的（从右下角开始），正如文档中所述。
但我希望它从右到左工作。
我还尝试使用视图的转换属性，例如：
self.containerView.transform = CGAffineTransformMakeRotation(-M_PI_2);
self.oneView.transform = CGAffineTransformMakeRotation(M_PI_2);
它没有帮助。
那么，一个问题是：
如何在横向模式（左和右）下使用过渡 UIViewAnimationTransitionCurlUp 在视图之间从右到左进行过渡？
感谢您的帮助！
亚历克斯
I'm trying to make a transition between two views with UIViewAnimationTransitionCurlUp.
My application works in landscape (left and right) and I need transition from right to left.
UIViewAnimationTransitionCurlUp works from down to up (and not from right to left as I want).
My first version was:
self.oneView = [[[UIImageView alloc] initWithFrame:frame] autorelease];
self.twoView = [[[UIImageView alloc] initWithFrame:frame] autorelease];
[self.view addSubview:self.oneView];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES];
[self.oneView removeFromSuperview];
[self.view addSubview:twoView];
[UIView commitAnimations];
It worked in landscape with home button on the right (transition was from right to left started with right-upper corner as desired).
But when device was rotated to home button on the left, curl affect was upside down: from left to right started with left-buttom corner).
It seemed that animation wasn't aware of device orientation.
I changed a code in order to use intermediate container view (between self.view and
self.oneView/twoView):
self.containerView = [[[UIView alloc] initWithFrame:frame] autorelease];
self.oneView = [[[UIImageView alloc] initWithFrame:frame] autorelease];
self.twoView = [[[UIImageView alloc] initWithFrame:frame] autorelease];
[self.view addSubview:self.containerView];
[self.containerView addSubview:self.oneView]
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.containerView cache:YES];
[self.oneView removeFromSuperview];
[self.containerView addSubview:twoView];
[UIView commitAnimations];
Now it was aware of device rotation and worked correctly for both landscape orientation.
But it worked from down to up (started with right-bottom corner) as it described in docs.
But I want it to work from right to left.
I also tried to use transform property of views like:
self.containerView.transform = CGAffineTransformMakeRotation(-M_PI_2);
self.oneView.transform = CGAffineTransformMakeRotation(M_PI_2);
It didn't help.
So, a question is:
How to use transition UIViewAnimationTransitionCurlUp in landscape mode (both left and right) for transition between views from right to left?
Thanks for any help!
Alex
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评论（1）
您是否尝试过使用
UIViewAnimationTransitionCurlDown？它是UIViewAnimationTransitionCurlUp的相反方向。Have you tried using
UIViewAnimationTransitionCurlDown? It is the reverse direction ofUIViewAnimationTransitionCurlUp.