如何在UIScrollView中找到UIImageView的缩放因子

Question

What is the most easiest way to find the zooming factor when I zoom in/out the UIImageView inside the scroll view? I know maybe I can do some calculation on the scrollViewDidZoom delegate, but is there an easier way? I know there's also - (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(float)scale , but this is only after the zoom ends, not while it's at it

Answer 1

UIScrollView有一个zoomScale属性 ，听起来像你想要的：“一个浮点值，指定应用于滚动视图内容的当前比例因子。”