Detect page change in UICollectionView

Question

I tried finding this question for a while but could not find this problem\'s answer. My problem is that i have a UICollectionView and the Scroll Direction is

Answer 1

Xamarin.iOS:

You can override DecelerationEnded method of UICollectionViewDelegate or subscribe to DecelerationEnded event of UICollectionView (custom delegate will be used under the hood).

public override void DecelerationEnded(UIScrollView scrollView)
{
    var x = scrollView.ContentOffset.X;
    var w = scrollView.Bounds.Size.Width;
    var currentPage = Math.Ceiling(x / w);

    // use currentPage here
}