RowPresenter

public abstract class RowPresenter
extends Presenter

java.lang.Object
↳	android.support.v17.leanback.widget.Presenter
	↳	android.support.v17.leanback.widget.RowPresenter

Known Direct Subclasses AbstractMediaItemPresenter,AbstractMediaListHeaderPresenter,DetailsOverviewRowPresenter,FullWidthDetailsOverviewRowPresenter,ListRowPresenter,PlaybackRowPresenter AbstractMediaItemPresenter Abstract Presenter class for rendering media items in a playlist format.  AbstractMediaListHeaderPresenter Abstract presenter class for rendering the header for a list of media items in a playlist.  DetailsOverviewRowPresenter This class was deprecated in API level 24.1.0. Use FullWidthDetailsOverviewRowPresenter   FullWidthDetailsOverviewRowPresenter Renders a DetailsOverviewRow to display an overview of an item.  ListRowPresenter ListRowPresenter renders ListRow using a HorizontalGridView hosted in a ListRowView.  PlaybackRowPresenter Subclass of RowPresenter that can define the desired behavior when the view reappears.

Known Indirect Subclasses PlaybackControlsRowPresenter,PlaybackTransportRowPresenter PlaybackControlsRowPresenter A PlaybackControlsRowPresenter renders a PlaybackControlsRow to display a series of playback control buttons.  PlaybackTransportRowPresenter A PlaybackTransportRowPresenter renders a PlaybackControlsRow to display a series of playback control buttons.

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An abstract Presenter that renders an Object in RowsFragment, the object can be subclass Row or a generic one. When the object is not Row class, getRow() returns null.

Customize UI widgets

When a subclass of RowPresenter adds UI widgets, it should subclass RowPresenter.ViewHolder and override createRowViewHolder(ViewGroup) and initializeRowViewHolder(ViewHolder). The subclass must use layout id "row_content" for the widget that will be aligned to the title of any HeadersFragment that may exist in the parent fragment. RowPresenter contains an optional and replaceable RowHeaderPresenter that renders the header. You can disable the default rendering or replace the Presenter with a new header presenter by calling setHeaderPresenter(RowHeaderPresenter).

UI events from fragments

RowPresenter receives calls from its parent (typically a Fragment) when:

• A row is selected via setRowViewSelected(Presenter.ViewHolder, boolean). The event is triggered immediately when there is a row selection change before the selection animation is started. Selected status may control activated status of the row (see "Activated status" below). Subclasses of RowPresenter may override onRowViewSelected(ViewHolder, boolean).
• A row is expanded to full height via