private void ScheduleReArrangeIfNeeded(UIElement child)
{
bool isScheduled;
if (this.isChildRearrangeScheduled.TryGetValue(child, out isScheduled) && isScheduled)
{
return;
}
this.isChildRearrangeScheduled[child] = true;
this.Dispatcher.BeginInvoke(
delegate
{
try
{
if (child.measuredFor != null)
{
var measuredSize = child.MeasureOverride(child.measuredFor.Value);
if (child.arrangedSize == measuredSize)
{
child.Arrange(new RectangleF(child.TranslatePoint, child.arrangedSize));
return;
}
}
this.needsResizeChilds.Add(child);
this.InvalidateMeasure();
}
finally
{
this.isChildRearrangeScheduled[child] = false;
}
});
}
public override void WillDisplay(UITableView tableView, UITableViewCell cell, NSIndexPath indexPath)
{
UIElement container = null;
var nativeView = cell.ContentView.Subviews.FirstOrDefault();
if (nativeView != null)
{
if (this.nativeViewContainers.TryGetValue(nativeView, out container) == false)
{
nativeView.RemoveFromSuperview();
}
}
if (container == null)
{
container = (UIElement)this.panel.Generator.ContainerFromIndex(indexPath.Row);
this.panel.AddLogicalChild(container);
this.nativeViewContainers.Add(container.NativeUIElement, container);
cell.ContentView.AddSubview(container.NativeUIElement);
}
else
{
this.panel.Generator.Reuse(indexPath.Row, container);
}
container.MeasureOverride(this.GetItemAvailableSize(this.panel.measuredSize));
container.Arrange(new CGRect(CGPoint.Empty, container.measuredSize));
container.LayoutUpdated += this.panel.Child_LayoutUpdated;
}
public void ArrangeItemAtPosition(UIElement child, int index)
{
child.MeasureOverride(this.arrangedSize);
var rect = new RectangleF(new PointF(index * this.arrangedSize.Width, 0), this.arrangedSize);
child.Arrange(rect);
}
private void ScheduleReArrangeIfNeeded(UIElement child)
{
bool isScheduled;
if (this.isChildRearrangeScheduled.TryGetValue(child, out isScheduled) && isScheduled)
{
return;
}
this.isChildRearrangeScheduled[child] = true;
this.Dispatcher.BeginInvoke(
delegate
{
try
{
var size = child.MeasureOverride(child.measuredFor.Value);
child.Arrange(new RectangleF(child.TranslatePoint, size));
}
finally
{
this.isChildRearrangeScheduled[child] = false;
}
});
}
private void ArrangeChild(UIElement child)
{
if (child.NativeUIElement != null)
{
SizeF needSize = new SizeF();
if (this.childSizeCache.ContainsKey(child))
{
needSize = this.childSizeCache[child];
}
else
{
needSize = child.MeasureOverride(new SizeF(nfloat.PositiveInfinity, nfloat.PositiveInfinity));
this.childSizeCache[child] = needSize;
}
child.Arrange(new RectangleF((nfloat)Canvas.GetLeft(child), (nfloat)Canvas.GetTop(child), needSize.Width, needSize.Height));
}
}
public void ArrangeItemAtPosition(UIElement child, int index)
{
child.MeasureOverride(this.arrangedSize);
child.Arrange(this.GetChildRect(index));
}
public void ArrangeItemAtPosition(UIElement child, int index)
{
child.MeasureOverride(this.arrangedSize);
child.Arrange(this.GetChildRect(index));
}
public void ArrangeItemAtPosition(UIElement child, int index)
{
child.MeasureOverride(this.arrangedSize);
var rect = new RectangleF(new PointF(index * this.arrangedSize.Width, 0), this.arrangedSize);
child.Arrange(rect);
}