private void Initialize()
{
_listView = new UITableView(UIScreen.MainScreen.Bounds)
{
ClipsToBounds = true,
ContentMode = UIViewContentMode.ScaleAspectFill,
SeparatorStyle = UITableViewCellSeparatorStyle.None,
AllowsSelection = false,
Bounces = true,
TranslatesAutoresizingMaskIntoConstraints = false,
AutoresizingMask = UIViewAutoresizing.All,
RowHeight = UITableView.AutomaticDimension,
EstimatedRowHeight = 100,
};
_listView.RegisterClassForCellReuse(typeof(LegendTableViewCell), LegendTableSource.CellId);
var source = new LegendTableSource(_datasource);
_listView.Source = source;
source.CollectionChanged += Source_CollectionChanged;
AddSubview(_listView);
_listView.LeadingAnchor.ConstraintEqualTo(LeadingAnchor).Active = true;
_listView.TopAnchor.ConstraintEqualTo(TopAnchor).Active = true;
_listView.TrailingAnchor.ConstraintEqualTo(TrailingAnchor).Active = true;
_listView.HeightAnchor.ConstraintEqualTo(HeightAnchor).Active = true;
InvalidateIntrinsicContentSize();
}
private void UpdateSublayers(LayerContentViewModel layerContent)
{
var subLayers = layerContent?.Sublayers;
if (subLayers == null)
{
_listView.Source = null;
_listView.ReloadData();
InvalidateIntrinsicContentSize();
return;
}
var source = new LegendTableSource(new List <LayerContentViewModel>(subLayers));
_listView.Source = source;
source.CollectionChanged += (a, b) => InvokeOnMainThread(() =>
{
_listView.ReloadData();
_listView.SetNeedsUpdateConstraints();
_listView.UpdateConstraints();
});
_listView.ReloadData();
_listView.SetNeedsUpdateConstraints();
_listView.UpdateConstraints();
}
private void Refresh()
{
if (_listView == null)
{
return;
}
if ((GeoView as MapView)?.Map == null && (GeoView as SceneView)?.Scene == null)
{
_listView.Source = null;
_listView.ReloadData();
InvalidateIntrinsicContentSize();
return;
}
ObservableLayerContentList layers = null;
if (GeoView is MapView)
{
layers = new ObservableLayerContentList(GeoView as MapView, ShowLegendInternal)
{
ReverseOrder = !ReverseLayerOrder,
};
}
else if (GeoView is SceneView)
{
layers = new ObservableLayerContentList(GeoView as SceneView, ShowLegendInternal)
{
ReverseOrder = !ReverseLayerOrder,
};
}
if (layers == null)
{
_listView.Source = null;
return;
}
foreach (var l in layers)
{
if (!(l.LayerContent is Layer))
{
continue;
}
var layer = l.LayerContent as Layer;
if (layer.LoadStatus == LoadStatus.Loaded)
{
l.UpdateLayerViewState(GeoView.GetLayerViewState(layer));
}
}
ScaleChanged();
SetLayerContentList(layers);
var source = new LegendTableSource(layers);
_listView.Source = source;
source.CollectionChanged += (a, b) => InvokeOnMainThread(() =>
{
_listView.ReloadData();
InvalidateIntrinsicContentSize();
});
_listView.ReloadData();
InvalidateIntrinsicContentSize();
Hidden = false;
}
