public static IVisualElementRenderer GetOrCreateRenderer(this VisualElement bindable)
{
var renderer = XFPlatform.GetRenderer(bindable);
if (renderer == null)
{
renderer = XFPlatform.CreateRenderer(bindable);
XFPlatform.SetRenderer(bindable, renderer);
}
return(renderer);
}
nfloat CalculateHeightForCell(NSTableView tableView, Cell cell)
{
var viewCell = cell as ViewCell;
double renderHeight;
if (List.RowHeight == -1 && viewCell?.View != null)
{
var target = viewCell.View;
if (_prototype == null)
{
_prototype = Platform.CreateRenderer(target);
Platform.SetRenderer(target, _prototype);
}
else
{
_prototype.SetElement(target);
Platform.SetRenderer(target, _prototype);
}
var req = target.Measure(tableView.Frame.Width, double.PositiveInfinity, MeasureFlags.IncludeMargins);
target.ClearValue(Platform.RendererProperty);
foreach (var descendant in target.Descendants())
{
descendant.ClearValue(Platform.RendererProperty);
}
renderHeight = req.Request.Height;
}
else
{
renderHeight = cell.RenderHeight;
}
return(renderHeight > 0 ? (nfloat)renderHeight : ListViewRenderer.DefaultRowHeight);
}
void UpdateControllers()
{
ClearControllers();
if (Platform.GetRenderer(MasterDetailPage.Master) == null)
{
Platform.SetRenderer(MasterDetailPage.Master, Platform.CreateRenderer(MasterDetailPage.Master));
}
if (Platform.GetRenderer(MasterDetailPage.Detail) == null)
{
Platform.SetRenderer(MasterDetailPage.Detail, Platform.CreateRenderer(MasterDetailPage.Detail));
}
AddSplitViewItem(new NSSplitViewItem
{
ViewController = new ViewControllerWrapper(Platform.GetRenderer(MasterDetailPage.Master))
});
AddSplitViewItem(new NSSplitViewItem
{
ViewController = new ViewControllerWrapper(Platform.GetRenderer(MasterDetailPage.Detail))
});
UpdateChildrenLayout();
}