void UpdateCurrentPage(bool animated = true)
{
ContentPage current = Carousel.CurrentPage;
if (current != null)
{
int index = Carousel.CurrentPage != null?CarouselPage.GetIndex(Carousel.CurrentPage) : 0;
if (index < 0)
{
index = 0;
}
if (SelectedIndex == index)
{
return;
}
if (animated)
{
NSAnimationContext.RunAnimation(context => { ((NSPageController)Animator).SelectedIndex = index; },
CompleteTransition);
}
else
{
SelectedIndex = index;
}
}
}
void UpdateCurrentPage(bool animated = true)
{
ContentPage current = Carousel.CurrentPage;
if (current != null)
{
ScrollToPage(CarouselPage.GetIndex(current), animated);
}
}
public void UpdateCurrentItem()
{
if (_page.CurrentPage == null)
{
throw new InvalidOperationException("CarouselPage has no children.");
}
int index = CarouselPage.GetIndex(_page.CurrentPage);
if (index >= 0 && index < _page.Children.Count)
{
_pager.CurrentItem = index;
}
}
void OnPagesChanged(object sender, NotifyCollectionChangedEventArgs e)
{
_ignoreNativeScrolling = true;
NotifyCollectionChangedAction action = e.Apply((o, i, c) => InsertPage((ContentPage)o, i), (o, i) => RemovePage((ContentPage)o, i), Reset);
PositionChildren();
_ignoreNativeScrolling = false;
if (action == NotifyCollectionChangedAction.Reset)
{
int index = Carousel.CurrentPage != null?CarouselPage.GetIndex(Carousel.CurrentPage) : 0;
if (index < 0)
{
index = 0;
}
ScrollToPage(index);
}
}
protected override int GetIndex(ContentPage page)
{
return(CarouselPage.GetIndex(page));
}
