在X方向旋转两个UIImageView
问题描述:
我想旋转两个图像,我把一个图像放在另一个后面,但是当我用下面的代码旋转它们时,后面的图像会在前面图像上方 ,我指定它们的ZPOstion,但它们没有改变在X方向旋转两个UIImageView
这个链接,我的观点之前,旋转http://i39.tinypic.com/ivv2ah.png
后旋转http://i43.tinypic.com/ic05xj.png
这是如何发生的
[UIView animateWithDuration:0.2 animations:
^{
CALayer *myLayer=self.image2.layer;
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.x"];
animation.fromValue = [NSNumber numberWithFloat:(1 * M_PI/Down)];
animation.toValue = [NSNumber numberWithFloat:(1 * M_PI/UP)];
animation.repeatCount =0;
animation.duration=0.2;
[animation setRemovedOnCompletion:NO];
animation.timingFunction = [CAMediaTimingFunction
functionWithName:kCAMediaTimingFunctionLinear];
[self.image2.layer addAnimation:animation forKey:@"transform.rotation.x"];
CATransform3D transform = CATransform3DIdentity;
transform.m34 = (1/500.0f);
transform = CATransform3DRotate(transform, (1 * M_PI/UP), 1, 0,0);
myLayer.transform=transform;
}
completion:^(BOOL finished)
{
[email protected]"UP";
}];
[UIView animateWithDuration:0.2 animations:
^{
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.x"];
animation.fromValue = [NSNumber numberWithFloat:(1 * M_PI/Down)];
animation.toValue = [NSNumber numberWithFloat:(1 * M_PI/UP)];
animation.repeatCount =0;
animation.duration=0.2;
[animation setRemovedOnCompletion:NO];
animation.timingFunction = [CAMediaTimingFunction
functionWithName:kCAMediaTimingFunctionLinear];
[card.layer addAnimation:animation forKey:@"transform.rotation.x"];
CATransform3D transform = CATransform3DIdentity;
transform.m34 = (1/500.0f);
transform = CATransform3DRotate(transform, (1 * M_PI/UP), 1, 0,0);
card.layer.transform=transform;
}
completion:^(BOOL finished)
{
[email protected]"UP";
}];
CArdImage是自定义的UIImageView,这就是我改变
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self)
{
self.layer.anchorPoint=CGPointMake(0.5, 1.0);
CATransform3D transform = CATransform3DIdentity;
transform.m34 = (1/500.0f);
transform = CATransform3DRotate(transform, (1 * M_PI/2.5), 0.5, 0,0);
self.layer.transform=transform;
[email protected]"UP";
}
return self;
}
答
一个可能的原因是,动画不相互同步。尝试将两个动画块放在一起:
[UIView animateWithDuration:0.2 animations:
^{
CALayer *myLayer=self.image2.layer;
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.x"];
animation.fromValue = [NSNumber numberWithFloat:(1 * M_PI/Down)];
animation.toValue = [NSNumber numberWithFloat:(1 * M_PI/UP)];
animation.repeatCount =0;
animation.duration=0.2;
[animation setRemovedOnCompletion:NO];
animation.timingFunction = [CAMediaTimingFunction
functionWithName:kCAMediaTimingFunctionLinear];
[self.image2.layer addAnimation:animation forKey:@"transform.rotation.x"];
CATransform3D transform = CATransform3DIdentity;
transform.m34 = (1/500.0f);
transform = CATransform3DRotate(transform, (1 * M_PI/UP), 1, 0,0);
myLayer.transform=transform;
// second animation code
CABasicAnimation *animation2 = [CABasicAnimation animationWithKeyPath:@"transform.rotation.x"];
animation2.fromValue = [NSNumber numberWithFloat:(1 * M_PI/Down)];
animation2.toValue = [NSNumber numberWithFloat:(1 * M_PI/UP)];
animation2.repeatCount =0;
animation2.duration=0.2;
[animation2 setRemovedOnCompletion:NO];
animation2.timingFunction = [CAMediaTimingFunction
functionWithName:kCAMediaTimingFunctionLinear];
[card.layer addAnimation:animation2 forKey:@"transform.rotation.x"];
CATransform3D transform = CATransform3DIdentity;
transform.m34 = (1/500.0f);
transform = CATransform3DRotate(transform, (1 * M_PI/UP), 1, 0,0);
card.layer.transform=transform;
}
completion:^(BOOL finished)
{
[email protected]"UP";
[email protected]"UP";
}];
结果相同 – khaled 2012-04-08 14:34:20