ios: how to get index of current ?UIscrollView page

Question

I want to know index of current scrolled page in UIScrollView. I have searched through many sites by none helps. Any suggestions are welcome.

Answer 1

Try this

    //Horizontal
    NSInteger pagenumber = scrollView.contentOffset.x / scrollView.bounds.size.width;
    //Vertical
    NSInteger pagenumber = scrollView.contentOffset.y / scrollView.bounds.size.height;

Answer 2

For those needing code (swift) , the UIScrollViewDelegate provides the method, this uses the horizontal example from above

func scrollViewDidEndDecelerating(scrollView: UIScrollView) {
    print("END Scrolling \(scrollView.contentOffset.x / scrollView.bounds.size.width)")
    index = Int(scrollView.contentOffset.x / scrollView.bounds.size.width)
}