belongs to Maven artifact com.android.support:leanback-v17:28.0.0-alpha1
ItemAlignmentFacet
public
final
class
ItemAlignmentFacet
extends Object
| java.lang.Object | |
| ↳ | android.support.v17.leanback.widget.ItemAlignmentFacet |
Optional facet provided by RecyclerView.Adapter or RecyclerView.ViewHolder for
use in HorizontalGridView and VerticalGridView. Apps using Presenter may
set facet using setFacet(Class, Object) or
setFacet(Class, Object). Facet on ViewHolder has a higher priority
than Presenter or Adapter.
ItemAlignmentFacet contains single or multiple ItemAlignmentFacet.ItemAlignmentDefs. First
ItemAlignmentFacet.ItemAlignmentDef describes the default alignment position for ViewHolder, it also
overrides the default item alignment settings on VerticalGridView and
HorizontalGridView (see setItemAlignmentOffset(int) etc). One
ItemAlignmentFacet can have multiple ItemAlignmentFacet.ItemAlignmentDefs, e.g. having two aligned positions
when child1 gets focus or child2 gets focus. Grid view will visit focused view and its
ancestors till the root of ViewHolder to match ItemAlignmentFacet.ItemAlignmentDefs'
getItemAlignmentFocusViewId(). Once a match found, the
ItemAlignmentFacet.ItemAlignmentDef is used to calculate alignment position.
