public override void OnScrolled(RecyclerView recyclerView, int dx, int dy)
{
base.OnScrolled(recyclerView, dx, dy);
LinearLayoutManager layoutManager = (LinearLayoutManager)recyclerView.GetLayoutManager();
int firstVisible = layoutManager.FindFirstVisibleItemPosition();
int visibleCount = Math.Abs(firstVisible - layoutManager.FindLastVisibleItemPosition());
int itemCount = recyclerView.GetAdapter().ItemCount;
if (firstVisible != lastFirstVisible ||
visibleCount != lastVisibleCount ||
itemCount != lastItemCount)
{
scrollListener.OnScroll(null, firstVisible, visibleCount, itemCount);
lastFirstVisible = firstVisible;
lastVisibleCount = visibleCount;
lastItemCount = itemCount;
}
}
//JAVA TO C# CONVERTER WARNING: 'final' parameters are not available in .NET:
//ORIGINAL LINE: public final void onScroll(final android.widget.AbsListView view, final int firstVisibleItem, final int visibleItemCount, final int totalItemCount)
public void OnScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount)
{
/// <summary>
/// Set whether the Last Item is Visible. lastVisibleItemIndex is a
/// zero-based index, so we minus one totalItemCount to check
/// </summary>
if (null != mOnLastItemVisibleListener)
{
mLastItemVisible = (totalItemCount > 0) && (firstVisibleItem + visibleItemCount >= totalItemCount - 1);
}
// If we're showing the indicator, check positions...
if (ShowIndicatorInternal)
{
updateIndicatorViewsVisibility();
}
// Finally call OnScrollListener if we have one
if (null != mOnScrollListener)
{
mOnScrollListener.OnScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
}