protected override IShadow <TView> Create(XamFormsContext context, TElement initial)
{
// call down to the base to get the shadow
var shadow = (Shadow <TView>)base.Create(context, initial);
// create the connector to the list view
var groupConnector = _connector(context, shadow);
//// get the collection comparer, which the user may have overridden from the default one
var comparer = initial.Attributes.GetAttributeOrDefault(Group.ComparerAttribute) ?? PrimitiveCollectionComparer.Default;
//// create the update handler which connects the comparer with the connector
var dataUpdateHandler = new BackingStoreUpdateHandler <XamFormsContext, TView, IPrimitive>(groupConnector, XamLayoutGroup.ChildrenAttribute, comparer);
//// and finally set this as the adapter to be used
this.SetChildrenAdapter(context, shadow, dataUpdateHandler);
return(shadow);
}
protected override IShadow <RecyclerView> Create(AndroidContext context, AndroidViewGroup <RecyclerView> initial)
{
var shadow = (Shadow <RecyclerView>)base.Create(context, initial);
// and now setup the data connection
var rvac = new RecyclerViewAdapterConnector(context);
var collectionComparer = initial.Attributes.GetAttributeOrDefault(Group.ComparerAttribute);
var dataH = new BackingStoreUpdateHandler <AndroidContext, RecyclerView, IPrimitive>(rvac, Group.ChildrenAttribute, collectionComparer);
this.SetChildrenAdapter(context, shadow, dataH);
Transaction.Current.Add(() =>
{
// and set the adapter in the recycler view
shadow.Item.SetAdapter(rvac.Adapter);
});
return(shadow);
}
protected override IShadow <TView> Create(XamFormsContext context, TElement initial)
{
// call down to the base to get the shadow
var shadow = (Shadow <TView>)base.Create(context, initial);
// create the connector to the list view
var groupConnector = _connector(context, shadow);
//// get the collection comparer, which the user may have overridden from the default one
var comparer = _comparer ?? new MyerComparer <TGroupElement>();
//// create the update handler which connects the comparer with the connector
var dataUpdateHandler = new BackingStoreUpdateHandler <XamFormsContext, TView, TGroupElement>(groupConnector, _attribute, comparer);
//// and finally set this as the adapter to be used
this.SetChildrenAdapter(context, shadow, dataUpdateHandler);
return(shadow);
}