protected override void Dispose(bool disposing)
{
if (disposing)
{
_parentPage.Appearing -= ParentPageAppearing;
_adapter?.Dispose();
_adapter = null;
_layoutManager?.Dispose();
_layoutManager = null;
_simpleCallback?.Dispose();
_simpleCallback = null;
_itemTouchhelper?.Dispose();
_itemTouchhelper = null;
}
base.Dispose(disposing);
}
protected override void OnElementChanged(ElementChangedEventArgs <App.Controls.BoxedView.BoxedView> e)
{
base.OnElementChanged(e);
if (e.NewElement != null)
{
var recyclerView = new RecyclerView(Context);
_layoutManager = new LinearLayoutManager(Context);
recyclerView.SetLayoutManager(_layoutManager);
SetNativeControl(recyclerView);
Control.Focusable = false;
Control.DescendantFocusability = DescendantFocusability.AfterDescendants;
UpdateBackgroundColor();
UpdateRowHeight();
_adapter = new BoxedViewRecyclerAdapter(Context, e.NewElement, recyclerView);
Control.SetAdapter(_adapter);
_simpleCallback = new BoxedViewSimpleCallback(
e.NewElement, ItemTouchHelper.Up | ItemTouchHelper.Down, 0);
_itemTouchhelper = new ItemTouchHelper(_simpleCallback);
_itemTouchhelper.AttachToRecyclerView(Control);
Element elm = Element;
while (elm != null)
{
elm = elm.Parent;
if (elm is Page)
{
break;
}
}
_parentPage = elm as Page;
_parentPage.Appearing += ParentPageAppearing;
}
}