void SelectItem(object item)
{
int position = TemplatedItemsView.TemplatedItems.GetGlobalIndexOfItem(item);
AView view = null;
if (position != -1)
{
view = _realListView.GetChildAt(position + 1 - _realListView.FirstVisiblePosition);
}
Select(position, view);
}
private async void _control_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
var c = _control.GetChildAt(0);
var scrolly = -c.Top + _control.FirstVisiblePosition * c.Height;
if (scrolly < 20)
{
await Task.Delay(250);
}
// TODO: When scrolls to down we should animate toolbar to top together with layout
// NavigationPage.SetHasNavigationBar(page.CurrentPage, !(scrolly > 20));
}
void DisposeCells()
{
var cellCount = _realListView?.ChildCount ?? 0;
for (int i = 0; i < cellCount; i++)
{
var layout = _realListView.GetChildAt(i) as ConditionalFocusLayout;
// Headers and footers will be skipped. They are disposed elsewhere.
if (layout == null || layout.IsDisposed())
{
continue;
}
var renderedView = layout?.GetChildAt(0);
var element = (renderedView as INativeElementView)?.Element;
var view = (element as ViewCell)?.View;
if (view != null)
{
var renderer = Platform.GetRenderer(view);
if (renderer == renderedView)
{
element.ClearValue(Platform.RendererProperty);
}
renderer?.Dispose();
renderer = null;
}
renderedView?.Dispose();
renderedView = null;
}
}