iphone - UIView 的简单核心动画 3D 变换

Question

我正在尝试使用 CA 制作简单的部分翻转动画，但我在透视方面遇到了问题。我试过:

    [UIView animateWithDuration:1.0 animations:^{
    self.someView.layer.anchorPoint = CGPointMake(0.5, 0);
    self.someView.layer.transform = CATransform3DMakeRotation(M_PI*0.6,1.0,0.0,0.0);
} completion:^(BOOL finished){
    // code to be executed when flip is completed
}];

如何获得这种良好的视角？

Answer 1

像这样的事情会做:

CATransform3D rotationAndPerspectiveTransform = CATransform3DIdentity;
rotationAndPerspectiveTransform.m34 = 1.0 / -1000.0;
rotationAndPerspectiveTransform = CATransform3DRotate(rotationAndPerspectiveTransform, M_PI * 0.6, 1.0f, 0.0f, 0.0f);
[UIView animateWithDuration:1.0 animations:^{
    self.someView.layer.anchorPoint = CGPointMake(0.5, 0);
    self.someView.layer.transform = rotationAndPerspectiveTransform;
} completion:^(BOOL finished){
    // code to be executed when flip is completed
}];