ios CoreAnimation

我正在尝试倾斜一个对象，这是我正在做的UIView：

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:DEPLACEMENT_ANIMATION_DUREE_SECONDES_DROITE];
scene.carte17.layer.position = positionInit;
if (scene.carte17.angleCarte == 15.f) {
    scene.carte17.transform = CGAffineTransformRotate(scene.carte17.transform, degreesToRadians(30));
    scene.carte17.angleCarte = 45.f;
}
[UIView commitAnimations];

它正在工作！我的卡倾斜30度，很好。我正在使用setAnimationDuration来控制速度

我想使用CoreAnimation和KCAMediatiming函数easeAseOut来制作更好的动画，但我不适合使用CoreAnimation，我正在尝试以下方法：

[CATransaction begin];
[CATransaction setAnimationDuration:.5f];
[CATransaction setAnimationTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
scene.carte17.layer.position = positionInit;
if (scene.carte17.angleCarte == 15.f) {
    CABasicAnimation *animation;
    animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
    animation.fromValue = [NSNumber numberWithFloat:0.0];
    animation.toValue = [NSValue valueWithCGAffineTransform:CGAffineTransformRotate(scene.carte17.transform, degreesToRadians(30))];
    animation.timingFunction = [CAMediaTimingFunction functionWithName: kCAMediaTimingFunctionEaseInEaseOut];
    animation.delegate = self;
    [scene.carte17.layer addAnimation:animation forKey:@"rotationAnimation"];

    scene.carte17.angleCarte = 45.f;
}
[CATransaction commit];

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但它不起作用。。。你能帮帮我吗

为什么不直接称之为：

[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];

---

但这太过分了，因为UIViewAnimationCurveEaseInOut是默认值。

谢谢你，PeyloW非常有用！我是新来的，我很难在CoreAnimation和UIKit中的动画之间做出准确的区别。。。但我正在努力@玛丽和我你能看看这个吗？