如何在UIView中应用变换？ [英] How to apply transform in UIView?

问题描述

我已将以下变换应用于UIView的图层，如下所示：

I have applied below transform to UIView's layer like this:

 CATransform3D rotationAndPerspectiveTransform = CATransform3DIdentity;
 rotationAndPerspectiveTransform.m34 = 1.0 / -850;
 rotationAndPerspectiveTransform = CATransform3DRotate(rotationAndPerspectiveTransform, M_PI_4*1.1,0.0f, 1.2f, 0.0f);
 self.centerView.layer.transform = rotationAndPerspectiveTransform;

但是没有那么多成功我只是想应用变换如下图所示

But not so much success i just wanted to apply transform like shown below image

任何帮助都非常感谢。感谢您阅读我的问题

Any help would so much appreciated. Thanks for reading my Question

推荐答案

也许这可能会有所帮助

CATransform3D t1 = CATransform3DIdentity;
t1.m34 = 1.0/-850;
t1 = CATransform3DScale(t1, 0.95, 0.95, 1);
t1 = CATransform3DRotate(t1, 15.0f*M_PI_4/180.0f, 0, 1.2, 0);

CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform"];
animation.toValue = [NSValue valueWithCATransform3D:t1];
animation.duration = 1;
animation.fillMode = kCAFillModeForwards;
animation.removedOnCompletion = NO;

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