protected override void OnChildChanged(UIView oldChild, UIView newChild)
{
base.OnChildChanged(oldChild, newChild);
if (_host != null)
{
if (oldChild != null)
{
_host.RemoveChild(oldChild);
}
if (newChild != null)
{
_host.AddSubview(newChild);
}
}
}
private void CreatePopoverController()
{
if (_popover != null)
{
return;
}
_popover = new UIPopoverController(new UIViewController());
_host = new Grid()
{
Frame = _popover.ContentViewController.View.Bounds,
AutoresizingMask = UIViewAutoresizing.All,
TemplatedParent = this.TemplatedParent,
};
_popover.ContentViewController.View.AddSubview(_host);
if (Child != null)
{
_host.AddSubview(Child);
}
_popover.DidDismiss += OnPopoverDidDismiss;
_popoverSubscription.Disposable = Disposable.Create(() =>
{
if (Child != null)
{
Child.RemoveFromSuperview();
}
_popover?.Dismiss(false);
_popover.DidDismiss -= OnPopoverDidDismiss;
_host.RemoveFromSuperview();
_popover = null;
_host = null;
});
}
