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我在collectionViewiOS 中使用 Scrolled 事件。如果CollectionView包含组，e.CenterItemIndex则每次组发生变化时变为 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将发生变化时，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

另一方面在 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
4

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