ios - ios CATransform3DMakeScale 放大动画

Question

我有以下动画：

CATransform3D scaleTransform = CATransform3DMakeScale(0.1,0.1, 1.0);
scaleAnimation.toValue = [NSValue valueWithCATransform3D:scaleTransform];
keyframeAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];;

我正在缩小子视图的地方。但我试图做相反的事情。从子视图大小的 0.01% 开始，到子视图大小的 100%。有谁知道我该怎么做？

Answer 1

做这个：

yourSubView.transform = CGAffineTransformMakeScale(0.01, 0.01);
[UIView animateWithDuration:0.4 delay:0 options:UIViewAnimationOptionCurveEaseOut animations:^{ 
//change time duration according to requirement
// animate it to the identity transform (100% scale)
yourSubView.transform = CGAffineTransformIdentity;
} completion:^(BOOL finished){
// if you want to do something once the animation finishes, put it here
}];