public
interface
BaseOnItemViewSelectedListener
| android.support.v17.leanback.widget.BaseOnItemViewSelectedListener<T> |
 Known Indirect Subclasses
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Interface for receiving notification when a row or item becomes selected. The concept of current selection is different than focus. A row or item can be selected without having focus; for example, when a row header view gains focus then the corresponding row view becomes selected.
Public methods | |
|---|---|
abstract
void
|
onItemSelected(Presenter.ViewHolder itemViewHolder, Object item, RowPresenter.ViewHolder rowViewHolder, T row)
Called when a row or a new item becomes selected. |
void onItemSelected (Presenter.ViewHolder itemViewHolder, Object item, RowPresenter.ViewHolder rowViewHolder, T row)
Called when a row or a new item becomes selected.
For a non ListRow case, parameter item may be null. Event is fired when
selection changes between rows, regardless if row view has focus or not.
For a ListRow case, parameter item is null if the list row is empty.
In the case of a grid, the row parameter is always null.
| Parameters | |
|---|---|
itemViewHolder |
Presenter.ViewHolder:
The view holder of the item that is currently selected. |
item |
Object:
The item that is currently selected. |
rowViewHolder |
RowPresenter.ViewHolder:
The view holder of the row that is currently selected. |
row |
T:
The row that is currently selected.
|
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