e.CenterItemIndex 变为 0，每次 group 发生变化OS

如何解决e.CenterItemIndex 变为 0，每次 group 发生变化OS

我在 iOS 的 collectionView 中使用 Scrolled 事件。如果 CollectionView 包含组，则每次组更改时 e.CenterItemIndex 都会变为 0。有什么办法可以解决这个问题吗？

private void CollectionViewtems_Scrolled(object sender,ItemsViewScrolledEventArgs e)
{
    var centerItemIndex=e.CenterItemIndex;
}

在 iOs 上：当一组 collectionView 发生变化时，它又从 0 开始；在 iOS 上滚动时的示例：

Index is 0
Index is 1
Index is 2
Index is 3
Index is 4
Index is 5  //After that index group will change 
Index is 0
Index is 1
Index is 2 //And after that index group will change again
Index is 0
Index is 1
Index is 2
Index is 3
Index is 4

另一方面，Android 索引将有一个连续的增量

Index is 0
Index is 1
Index is 2
Index is 3
Index is 4
Index is 5  //After that index group will change 
Index is 6
Index is 7
Index is 8 //And after that index group will change again
Index is 9
Index is 10
Index is 11
Index is 12
Index is 13