ios <Error>: CGAffineTransformInvert: singular matrix.

如果你尝试，并设置缩放比例为零，你会得到这个消息：<Error>: CGAffineTransformInvert: singular matrix.

[UIView
animateWithDuration:0.5
animations:^{

CGAffineTransform newTransform = 
CGAffineTransformScale(myView, 0.0,
0.0);

[myView setTransform:newTransform];

} completion:^(BOOL finished) {

}];

改为：CGAffineTransform newTransform =  CGAffineTransformScale(s.transform, 0.0001f, 0.00001f);

ios <Error>: CGAffineTransformInvert: singular matrix.