翻转，成长和翻译动画

问题描述

查看MLB At Bat应用程式的。基本上，我只想用 $ UIModalPresentationFormSheet 手动。

EDIT 2: I'd also be open to ditching the UIViewController concept and just using a plain UIView, then replicate the style of UIModalPresentationFormSheet manually if that's easier.

编辑3：好了，忘记使用 UIViewController 这样做，因为我没有得到任何回应，我会认为这是不可能的。我的新问题是如何使用 UIView '在发布的视频中复制动画？所以基本上，初始视图需要同时增长，移动和翻转所有。

EDIT 3: Okay, forget using a UIViewController to do this, since I haven't gotten any responses, I'll assume it isn't possible. My new question is just how do I replicate the animation in the posted video using just UIView's? So basically, the initial view needs to grow, move, and flip all at the same time.

编辑4：我认为我有实际的动画想出来，现在我只有问题是计算坐标到 CATransform3DTranslate 。我的视图需要动画几乎完全像在视频中。它需要从另一个视图开始，并动画到屏幕的中心。下面是我如何计算在中心弹出的视图的坐标：

EDIT 4: I think I have the actual animation figured out, now my only problem is calculating coordinates to feed into CATransform3DTranslate. My view needs to animate pretty much exactly like in the video. It needs to start over another view and animate to the center of the screen. Here's how I'm trying to calculate the coordinates for the view that pops up in the center:

CGPoint detailInitialPoint = [gridView convertPoint:view.frame.origin toView:detailView.frame.origin];
CGPoint detailFinalPoint = detailView.frame.origin;

gridView 视图，用于保存较小的网格项。 查看是我们正在动画的特定网格项。 detailView 是在屏幕中间出现的视图。

gridView is the container view of my main view that holds the smaller grid items. view is the specific grid item that we are animating from. And detailView is the view that comes up in the middle of the screen.

推荐答案

好吧，我想出来了。这是我做的：

OK, I figured it out. Here's what I did:

CGFloat duration = 0.8;

/*
//Detail View Animations
*/

CATransform3D initialDetailScale = CATransform3DMakeScale(view.frame.size.width/vc.view.frame.size.width, view.frame.size.height/vc.view.frame.size.height, 1.0);
CATransform3D initialDetailTransform = CATransform3DRotate(initialDetailScale, -M_PI, 0.0, -1.0, 0.0);
CATransform3D finalDetailScale = CATransform3DMakeScale(1.0, 1.0, 1.0);
CATransform3D finalDetailTransform = CATransform3DRotate(finalDetailScale, 0.0, 0.0, -1.0, 0.0);

NSMutableArray *detailAnimations = [NSMutableArray array];

CABasicAnimation *detailTransform = [CABasicAnimation animationWithKeyPath:@"transform"];
detailTransform.fromValue = [NSValue valueWithCATransform3D:initialDetailTransform];
detailTransform.toValue = [NSValue valueWithCATransform3D:finalDetailTransform];
detailTransform.duration = duration;
[detailAnimations addObject:detailTransform];

CABasicAnimation *detailFadeIn = [CABasicAnimation animationWithKeyPath:@"opacity"];
detailFadeIn.fromValue = [NSNumber numberWithFloat:1.0];
detailFadeIn.toValue = [NSNumber numberWithFloat:1.0];
detailFadeIn.duration = duration/2;
detailFadeIn.beginTime = duration/2;
[detailAnimations addObject:detailFadeIn];

CABasicAnimation *detailMove = [CABasicAnimation animationWithKeyPath:@"position"];
detailMove.fromValue = [NSValue valueWithCGPoint:vc.view.layer.position];
detailMove.toValue = [NSValue valueWithCGPoint:self.view.layer.position];
detailMove.duration = duration;
[detailAnimations addObject:detailMove];

CAAnimationGroup *detailGroup = [CAAnimationGroup animation];
[detailGroup setAnimations:detailAnimations];
[detailGroup setDuration:duration];
detailGroup.removedOnCompletion = NO;
detailGroup.fillMode = kCAFillModeForwards;
detailGroup.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
[vc.view.layer addAnimation:detailGroup forKey:@"anim"];

/*
//Grid Item View Animations
*/

CATransform3D initialGridScale = CATransform3DMakeScale(1.0, 1.0, 1.0);
CATransform3D initialGridTransform = CATransform3DRotate(initialGridScale, 0.0, 0.0, 1.0, 0.0);
CATransform3D finalGridScale = CATransform3DMakeScale(vc.view.frame.size.width/view.frame.size.width, vc.view.frame.size.height/view.frame.size.height, 1.0);
CATransform3D finalGridTransform = CATransform3DRotate(finalGridScale, M_PI, 0.0, 1.0, 0.0);

NSMutableArray *gridAnimations = [NSMutableArray array];

CABasicAnimation *gridTransform = [CABasicAnimation animationWithKeyPath:@"transform"];
gridTransform.fromValue = [NSValue valueWithCATransform3D:initialGridTransform];
gridTransform.toValue = [NSValue valueWithCATransform3D:finalGridTransform];
gridTransform.duration = duration;
[gridAnimations addObject:gridTransform];

CABasicAnimation *gridFadeOut = [CABasicAnimation animationWithKeyPath:@"opacity"];
gridFadeOut.fromValue = [NSNumber numberWithFloat:0.0];
gridFadeOut.toValue = [NSNumber numberWithFloat:0.0];
gridFadeOut.duration = duration/2;
gridFadeOut.beginTime = duration/2;
[gridAnimations addObject:gridFadeOut];

CABasicAnimation *gridMove = [CABasicAnimation animationWithKeyPath:@"position"];
gridMove.fromValue = [NSValue valueWithCGPoint:view.layer.position];
gridMove.toValue = [NSValue valueWithCGPoint:[self.view.layer convertPoint:self.view.layer.position toLayer:gridView.layer]];
gridMove.duration = duration;
[gridAnimations addObject:gridMove];

CAAnimationGroup *gridGroup = [CAAnimationGroup animation];
[gridGroup setAnimations:gridAnimations];
gridGroup.duration = duration;
gridGroup.fillMode = kCAFillModeForwards;
gridGroup.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
gridGroup.removedOnCompletion = NO;
[view.layer addAnimation:gridGroup forKey:@"anim"];

我使用 AQGridView 。在我的代码示例 view 是我动画的 AQGridViewCell 的实例。和 vc.view 是我的细节 UIViewController / UIView 我正在显示。

I'm doing this with an item in an AQGridView. In my code sample view is the instance of AQGridViewCell that I am animating. And vc.view is my detail UIViewController/UIView that I'm displaying.

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