void AddChild(VisualElement view, IVisualElementRenderer oldRenderer = null, RendererPool pool = null, bool sameChildren = false)
{
var reference = Guid.NewGuid().ToString();
Performance.Start(reference);
if (CompressedLayout.GetIsHeadless(view))
{
var packager = new VisualElementPackager(_renderer, view);
if (_childPackagers == null)
{
_childPackagers = new Dictionary <BindableObject, VisualElementPackager>();
}
view.IsPlatformEnabled = true;
packager.Load();
_childPackagers[view] = packager;
}
else
{
if (_childViews == null)
{
_childViews = new List <IVisualElementRenderer>();
}
IVisualElementRenderer renderer = oldRenderer;
if (pool != null)
{
renderer = pool.GetFreeRenderer(view);
}
if (renderer == null)
{
Performance.Start(reference, "New renderer");
renderer = Platform.CreateRenderer(view, _renderer.View.Context);
Performance.Stop(reference, "New renderer");
}
if (renderer == oldRenderer)
{
Platform.SetRenderer(renderer.Element, null);
renderer.SetElement(view);
}
Performance.Start(reference, "Set renderer");
Platform.SetRenderer(view, renderer);
Performance.Stop(reference, "Set renderer");
Performance.Start(reference, "Add view");
if (!sameChildren)
{
(_renderer.View as ViewGroup)?.AddView(renderer.View);
_childViews.Add(renderer);
}
Performance.Stop(reference, "Add view");
Performance.Stop(reference);
}
}
void AddChild(VisualElement view, IVisualElementRenderer oldRenderer = null, RendererPool pool = null, bool sameChildren = false)
{
Performance.Start();
if (CompressedLayout.GetIsHeadless(view))
{
var packager = new VisualElementPackager(_renderer, view);
view.IsPlatformEnabled = true;
packager.Load();
}
else
{
if (_childViews == null)
{
_childViews = new List <IVisualElementRenderer>();
}
IVisualElementRenderer renderer = oldRenderer;
if (pool != null)
{
renderer = pool.GetFreeRenderer(view);
}
if (renderer == null)
{
Performance.Start("New renderer");
renderer = Platform.CreateRenderer(view);
Performance.Stop("New renderer");
}
if (renderer == oldRenderer)
{
Platform.SetRenderer(renderer.Element, null);
renderer.SetElement(view);
}
Performance.Start("Set renderer");
Platform.SetRenderer(view, renderer);
Performance.Stop("Set renderer");
Performance.Start("Add view");
if (!sameChildren)
{
(_renderer.View as ViewGroup)?.AddView(renderer.View);
_childViews.Add(renderer);
}
Performance.Stop("Add view");
}
Performance.Stop();
}
public void SetElement (VisualElement element)
{
var oldElement = this.Element;
if (oldElement != null)
oldElement.PropertyChanged -= HandlePropertyChanged;
this.Element = element;
if (this.Element != null) {
//UpdateContent ();
this.Element.PropertyChanged += HandlePropertyChanged;
}
ViewGroup.RemoveAllViews ();
//sizes to match the forms view
//updates properties, handles visual element properties
Tracker = new VisualElementTracker (this);
Packager = new VisualElementPackager (this);
Packager.Load ();
UseCompatPadding = true;
SetContentPadding ((int)TheView.Padding.Left, (int)TheView.Padding.Top,
(int)TheView.Padding.Right, (int)TheView.Padding.Bottom);
Radius = TheView.CornderRadius;
this.SetCardBackgroundColor(TheView.BackgroundColor.ToAndroid ());
if (ElementChanged != null)
ElementChanged (this, new VisualElementChangedEventArgs (oldElement, this.Element));
}
protected void SetPackager(VisualElementPackager packager)
{
_packager = packager;
packager.Load();
}
