小编nzs*_*nzs的帖子

我正在尝试做一个UIView动画,我的图像从屏幕的左上角开始,并扩展到原始大小并放置在屏幕中间.到目前为止,我已经能够分别做到这一点但是当我尝试组合这些动画时,它只会进行缩放动画.

有没有办法让我同时使用缩放和翻译？

这是我到目前为止:

CGAffineTransform setpointTrans = CGAffineTransformMakeTranslation(-200.0f, -200.0f);
CGAffineTransform setpointScale = CGAffineTransformMakeScale(0.0f, 0.0f);
_RSEImage.transform = CGAffineTransformConcat(setpointTrans, setpointScale);
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDelegate:self];
[UIView setAnimationDuration:5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
CGAffineTransform scaleTrans  = CGAffineTransformMakeScale(1.0f, 1.0f);
CGAffineTransform lefttorightTrans  = CGAffineTransformMakeTranslation(0.0f,0.0f);
_RSEImage.transform = CGAffineTransformConcat(scaleTrans, lefttorightTrans);
[UIView commitAnimations];

好吧我明白了,这是我改变了:

_RSEImage.transform = CGAffineTransformMakeScale(0.0f, 0.0f);
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDelegate:self];
[UIView setAnimationDuration:5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
CGAffineTransform scaleTrans  = CGAffineTransformMakeScale(1.0f, 1.0f);
CGAffineTransform lefttorightTrans  = CGAffineTransformMakeTranslation(200.0f,200.0f);
_RSEImage.transform = CGAffineTransformConcat(scaleTrans, lefttorightTrans);
[UIView commitAnimations];