void IMauiCarouselRecyclerView.UpdateFromCurrentItem()
{
var currentItemPosition = ItemsViewAdapter.ItemsSource.GetPosition(Carousel.CurrentItem);
var carouselPosition = Carousel.Position;
if (_gotoPosition == -1 && currentItemPosition != carouselPosition)
{
_gotoPosition = currentItemPosition;
ItemsView.ScrollTo(currentItemPosition, position: Microsoft.Maui.Controls.ScrollToPosition.Center, animate: Carousel.AnimateCurrentItemChanges);
}
}
void UpdateCurrentItem()
{
if (CollectionViewSource == null)
{
return;
}
var currentItemPosition = GetItemPositionInCarousel(ItemsView.CurrentItem);
if (currentItemPosition < 0 || currentItemPosition >= ItemCount)
{
return;
}
ItemsView.ScrollTo(currentItemPosition, position: ScrollToPosition.Center, animate: ItemsView.AnimateCurrentItemChanges);
}
void IMauiCarouselRecyclerView.UpdateFromPosition()
{
if (!_initialized)
{
_carouselViewLoopManager.AddPendingScrollTo(new ScrollToRequestEventArgs(Carousel.Position, -1, Microsoft.Maui.Controls.ScrollToPosition.Center, false));
}
var itemCount = ItemsViewAdapter?.ItemsSource.Count ?? 0;
var carouselPosition = Carousel.Position;
if (itemCount == 0)
{
//we are trying to set a position but our Collection doesn't have items still
_oldPosition = carouselPosition;
return;
}
if (carouselPosition >= itemCount || carouselPosition < 0)
{
throw new IndexOutOfRangeException($"Can't set CarouselView to position {carouselPosition}. ItemsSource has {itemCount} items.");
}
if (carouselPosition == _gotoPosition)
{
_gotoPosition = -1;
}
if (_noNeedForScroll)
{
_noNeedForScroll = false;
return;
}
var centerPosition = GetCarouselViewCurrentIndex(carouselPosition);
if (_gotoPosition == -1 && !Carousel.IsDragging && !Carousel.IsScrolling && centerPosition != carouselPosition)
{
_gotoPosition = carouselPosition;
ItemsView.ScrollTo(carouselPosition, position: Microsoft.Maui.Controls.ScrollToPosition.Center, animate: Carousel.AnimatePositionChanges);
}
SetCurrentItem(carouselPosition);
}
void ScrollToIndex(int index)
{
_itemsView.ScrollTo(index, position: _currentScrollToPosition, animate: _animateSwitch.IsToggled);
}
void ScrollToItem(object item)
{
_itemsView.ScrollTo(item, position: _currentScrollToPosition, animate: _animateSwitch.IsToggled);
}