Zoom two UIScrollViews synchronously.

Question

I have two UIScrollViews. Both the scroll views contain an image. Now, I want to zoom second scroll view programmatically if I zoom in the first scroll view manually. I am using -(UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView method to manually zoom the first scroll view. The second scroll view should be zoomed to the same point and scale. How can I achieve this?

Answer 1

Try something like this in the UIScrollViewDelegate method:

override func scrollViewDidScroll(scrollView: UIScrollView){
    otherScrollView.contentOffset = scrollView.contentOffset
    otherScrollView.zoomScale = scrollView.zoomScale
}