protected override void OnAttached()
{
if (Element is not View elementView)
{
return;
}
switch (state)
{
case ShadowEffectState.Initialized:
shadowPanel = new StackLayout()
{
Children = { new Grid() }
};
state = ShadowEffectState.PanelCreated;
MoveElementTo(elementView, shadowPanel);
break;
case ShadowEffectState.PanelCreated:
AppendShadow();
state = ShadowEffectState.Attached;
break;
default:
break;
}
}
protected override void OnDetached()
{
if (state != ShadowEffectState.Attached)
{
return;
}
if (View != null)
{
View.SizeChanged -= ViewSizeChanged;
}
shadow?.Dispose();
shadow = null;
spriteVisual?.Dispose();
spriteVisual = null;
state = ShadowEffectState.PanelCreated;
}
