public override UIView GetViewForHeader(UITableView tableView, nint section)
{
PresentationFacetResult facet = _presentationFacetResultList[(int)section];
HeaderCell header = tableView.DequeueReusableHeaderFooterView(HeaderCell.Key) as HeaderCell;
header.label.Text = facet.FacetDisplayName;
if (_isSectionOpen[(int)section])
{
header.arrowBuuton.SetImage(UIImage.FromBundle("grey_arrow-down-icon.png"), UIControlState.Normal);
}
else
{
header.arrowBuuton.SetImage(UIImage.FromBundle("grey_arrow-right-icon.png"), UIControlState.Normal);
}
foreach (var view in header.Subviews)
{
if (view is HiddenHeaderButton)
{
view.RemoveFromSuperview();
}
}
var hiddenButton = CreateHiddenHeaderButton(header.Bounds, section);
header.AddSubview(hiddenButton);
return(header);
}
public ExpandableTableSource(List <PresentationFacetResult> aPresentationFacetResultList, UITableView tableView, RefineViewController aRefineViewController)
{
_presentationFacetResultList = aPresentationFacetResultList;
_isSectionOpen = new bool[aPresentationFacetResultList.Count];
_refineViewController = aRefineViewController;
tableView.RegisterNibForCellReuse(UINib.FromName(RefineCell.Key, NSBundle.MainBundle), RefineCell.Key);
tableView.RegisterNibForHeaderFooterViewReuse(UINib.FromName(HeaderCell.Key, NSBundle.MainBundle), HeaderCell.Key);
_headerButtonCommand = (sender, e) =>
{
var button = sender as UIButton;
var section = button.Tag;
_isSectionOpen[(int)section] = !_isSectionOpen[(int)section];
HeaderCell headeCell = (HeaderCell)button.Superview;
if (_isSectionOpen[(int)section])
{
headeCell.arrowBuuton.SetImage(UIImage.FromBundle("grey_arrow-down-icon.png"), UIControlState.Normal);
}
else
{
headeCell.arrowBuuton.SetImage(UIImage.FromBundle("grey_arrow-right-icon.png"), UIControlState.Normal);
}
tableView.ReloadData();
// Animate the section cells
var paths = new NSIndexPath[RowsInSection(tableView, section)];
for (int i = 0; i < paths.Length; i++)
{
paths[i] = NSIndexPath.FromItemSection(i, section);
}
tableView.ReloadRows(paths, UITableViewRowAnimation.Automatic);
};
}
