48 lines
1.7 KiB
C#
48 lines
1.7 KiB
C#
|
using Ooui.Forms.Renderers;
|
|||
|
|
using System;
|
|||
|
|
using Xamarin.Forms;
|
|||
|
|
|
|||
|
|
namespace Ooui.Forms.Cells
|
|||
|
|
{
|
|||
|
|
public class ViewCellElement : CellElement
|
|||
|
|
{
|
|||
|
|
WeakReference<IVisualElementRenderer> _rendererRef;
|
|||
|
|
|
|||
|
|
protected override void BindCell ()
|
|||
|
|
{
|
|||
|
|
var cell = (ViewCell)Cell;
|
|||
|
|
|
|||
|
|
IVisualElementRenderer renderer;
|
|||
|
|
if (_rendererRef == null || !_rendererRef.TryGetTarget (out renderer))
|
|||
|
|
renderer = GetNewRenderer (cell);
|
|||
|
|
else {
|
|||
|
|
if (renderer.Element != null && renderer == Platform.GetRenderer (renderer.Element))
|
|||
|
|
renderer.Element.ClearValue (Platform.RendererProperty);
|
|||
|
|
|
|||
|
|
var type = Xamarin.Forms.Internals.Registrar.Registered.GetHandlerTypeForObject (cell.View);
|
|||
|
|
var reflectableType = renderer as System.Reflection.IReflectableType;
|
|||
|
|
var rendererType = reflectableType != null ? reflectableType.GetTypeInfo ().AsType () : renderer.GetType ();
|
|||
|
|
if (rendererType == type || (renderer is DefaultRenderer && type == null)) {
|
|||
|
|
renderer.SetElement (cell.View);
|
|||
|
|
}
|
|||
|
|
else {
|
|||
|
|
renderer = GetNewRenderer (cell);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
Platform.SetRenderer (cell.View, renderer);
|
|||
|
|
|
|||
|
|
base.BindCell ();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
IVisualElementRenderer GetNewRenderer (ViewCell cell)
|
|||
|
|
{
|
|||
|
|
var newRenderer = Platform.CreateRenderer (cell.View);
|
|||
|
|
_rendererRef = new WeakReference<IVisualElementRenderer> (newRenderer);
|
|||
|
|
AppendChild (newRenderer.NativeView);
|
|||
|
|
|
|||
|
|
return newRenderer;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|