[英]UIImageview rotation animation
我想将动画应用于两个UIImageViews
。 想法是图像1水平翻转90度,然后图像2翻转完成旋转。 可以把它想象成一个硬币旋转:头侧(图像1)朝前 - >转90度 - >尾侧(图像2)旋转朝前。 我可以做动画的前半部分,但我被困在第二部分。
[UIView animateWithDuration:1.0f animations:^{
image1.transform = CGAffineTransformMakeScale(-0.01, 1);
} completion: ^(BOOL finished) {
// How can I make image 2 to rotate out as if it initially was already rotated by 90 degrees?
}];
对于翻转动画,有一个名为UIViewAnimationOptionTransitionFlipFromRight
的动画选项,例如使用UIView's
动画方法,如下例所示
[UIView transitionWithView:myImageView //with first image
duration:animationDuration
options:UIViewAnimationOptionTransitionFlipFromRight
animations:^{
myImageView.image = toImage; //to next image
} completion:^(BOOL finished) {
//completion actions after flipped
}];
还有其他动画选项,如FromLeft
, FromTop
, FromBottom
使用任何一个到您的要求
看一下这个关于使用CATransform3D在3D中翻转UIView的问题。
答案:
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
}];
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