iOS 4 上隐藏的 CATransition 动画（相机虹膜动画）
我正在尝试从苹果相机应用程序实现相机虹膜动画。它也出现在许多其他应用程序中，例如 RedLaser、Sudoku Grab，因此即使它是私有的，它似乎也符合苹果的规则。
隐藏的 CATransition 动画记录在此处，例如： http://iphonedevwiki.net/index.php/UIViewAnimationState
但是我无法让任何隐藏的工作，公共的工作得很好。这可能是 iOS 4 的改变吗？我找到的有关这些隐藏动画的所有信息似乎都有点过时了。
这是我的代码：
CATransition *animation = [CATransition animation];
animation.delegate = self;
animation.duration = 2.0;
animation.timingFunction = UIViewAnimationCurveEaseInOut;
animation.type = @"cameraIris";
[self.window.layer addAnimation:animation forKey:nil];
使用“reveal”作为“animation.type”可以很好地配合我的代码。
有人在 iOS 4 上玩过这些吗？或者问题完全不同？ RedLaser 在 iOS 4 上使用此效果（它不是 iOS 4 优化的应用程序）。
I'm trying to achieve the camera iris animation from the Apple camera app. It is also found in numerous other apps like RedLaser, Sudoku Grab, so it seems to be fine with Apples rules even thou it's private.
The hidden CATransition animations are dokumented here for example:
http://iphonedevwiki.net/index.php/UIViewAnimationState
However I'm not able to get any of the hidden ones to work, public ones work fine thou. Could this be a change of iOS 4? All information I do find on those hidden animations seems a little dated.
Here is my code:
CATransition *animation = [CATransition animation];
animation.delegate = self;
animation.duration = 2.0;
animation.timingFunction = UIViewAnimationCurveEaseInOut;
animation.type = @"cameraIris";
[self.window.layer addAnimation:animation forKey:nil];
Using "reveal" as 'animation.type' works fine with my code.
Has anybody played around with those on iOS 4 yet? Or is the issue totally different?
RedLaser uses this effect on iOS 4 (it's not an iOS 4 optimised app thou).
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
该动画可以在其他应用程序中找到，因为它是 Apple 的实现。访问相机API将导致出现快门打开动画。如果您想以非相机 api 相关的方式在您的应用程序中使用此动画，那么您将必须滚动自己的动画。
The animation is found in these other apps because it is Apple's implementation. Accessing the camera API will cause the shutter opening animation to appear. If you want to use this animation for your app in a non-camera api related way, then you will have to roll your own animation.