public class HeadersSupportFragment
extends Fragment

   ↳ androidx.fragment.app.Fragment
     ↳ androidx.leanback.app.HeadersSupportFragment

An fragment containing a list of row headers. Implementation must support three types of rows:

Use setPresenterSelector(PresenterSelector) in subclass constructor to customize Presenters. App may override BrowseSupportFragment.onCreateHeadersSupportFragment().


Nested classes

interface HeadersSupportFragment.OnHeaderClickedListener

Interface definition for a callback to be invoked when a header item is clicked. 

interface HeadersSupportFragment.OnHeaderViewSelectedListener

Interface definition for a callback to be invoked when a header item is selected. 

Public constructors


Public methods

final ObjectAdapter getAdapter()

Returns the Adapter that represents list of rows.

final ItemBridgeAdapter getBridgeAdapter()

Returns the RecyclerView.Adapter that wraps getAdapter().

final PresenterSelector getPresenterSelector()

Get the presenter selector used to create and bind views.

int getSelectedPosition()

Gets position of currently selected row.

final VerticalGridView getVerticalGridView()
boolean isScrolling()
View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)

Called to have the fragment instantiate its user interface view.

void onDestroyView()

Called when the view previously created by onCreateView(LayoutInflater, ViewGroup, Bundle) has been detached from the fragment.

void onSaveInstanceState(Bundle outState)

Called to ask the fragment to save its current dynamic state, so it can later be reconstructed in a new instance if its process is restarted.

void onTransitionEnd()
boolean onTransitionPrepare()
void onTransitionStart()
void onViewCreated(View view, Bundle savedInstanceState)

Called immediately after onCreateView(LayoutInflater, ViewGroup, Bundle) has returned, but before any saved state has been restored in to the view.

final void setAdapter(ObjectAdapter rowsAdapter)

Sets the adapter that represents a list of rows.

void setAlignment(int windowAlignOffsetTop)
void setOnHeaderClickedListener(HeadersSupportFragment.OnHeaderClickedListener listener)
void setOnHeaderViewSelectedListener(HeadersSupportFragment.OnHeaderViewSelectedListener listener)
final void setPresenterSelector(PresenterSelector presenterSelector)

Set the presenter selector used to create and bind views.

void setSelectedPosition(int position)

Sets the selected row position with smooth animation.

void setSelectedPosition(int position, boolean smooth)

Sets the selected row position.

Inherited methods