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PlaybackFragment

public class PlaybackFragment
extends Fragment

java.lang.Object
   ↳ android.app.Fragment
     ↳ android.support.v17.leanback.app.PlaybackFragment
Known Direct Subclasses


A fragment for displaying playback controls and related content.

A PlaybackFragment renders the elements of its ObjectAdapter as a set of rows in a vertical list. The Adapter's PresenterSelector must maintain subclasses of RowPresenter.

A playback row is a row rendered by PlaybackRowPresenter. App can call setPlaybackRow(Row) to set playback row for the first element of adapter. App can call setPlaybackRowPresenter(PlaybackRowPresenter) to set presenter for it. setPlaybackRow(Row) and setPlaybackRowPresenter(PlaybackRowPresenter) are optional, app can pass playback row and PlaybackRowPresenter in the adapter using setAdapter(ObjectAdapter).

Auto hide controls upon playing: best practice is calling setControlsOverlayAutoHideEnabled(boolean) upon play/pause. The auto hiding timer will be cancelled upon tickle() triggered by input event.

Summary

Inherited XML attributes

From class android.app.Fragment

Constants

int BG_DARK

A dark translucent background.

int BG_LIGHT

A light translucent background.

int BG_NONE

No background.

Inherited constants

From interface android.content.ComponentCallbacks2

Public constructors

PlaybackFragment()

Public methods

void fadeOut()

This method is deprecated. Call hideControlsOverlay(boolean)

ObjectAdapter getAdapter()
int getBackgroundType()

Returns the background type.

ProgressBarManager getProgressBarManager()

Returns the ProgressBarManager that will show or hide progress bar in onBufferingStateChanged(boolean).

void hideControlsOverlay(boolean runAnimation)

Hide controls overlay.

boolean isControlsOverlayAutoHideEnabled()

Returns true if controls will be auto hidden after a delay when fragment is resumed.

boolean isControlsOverlayVisible()

Returns true if controls overlay is visible, false otherwise.

boolean isFadingEnabled()

This method is deprecated. Uses isControlsOverlayAutoHideEnabled()

void notifyPlaybackRowChanged()

Updates the ui when the row data changes.

void onCreate(Bundle savedInstanceState)

Called to do initial creation of a fragment.

View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)

Called to have the fragment instantiate its user interface view.

void onDestroy()

Called when the fragment is no longer in use.

void onDestroyView()

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

void onPause()

Called when the Fragment is no longer resumed.

void onResume()

Called when the fragment is visible to the user and actively running.

void onStart()

Called when the Fragment is visible to the user.

void onStop()

Called when the Fragment is no longer started.

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.

void setAdapter(ObjectAdapter adapter)

Sets the list of rows for the fragment.

void setBackgroundType(int type)

Sets the background type.

void setControlsOverlayAutoHideEnabled(boolean enabled)

Enables or disables auto hiding controls overlay after a short delay fragment is resumed.

void setFadingEnabled(boolean enabled)

This method is deprecated. Uses setControlsOverlayAutoHideEnabled(boolean)

void setHostCallback(PlaybackGlueHost.HostCallback hostCallback)

Sets the PlaybackGlueHost.HostCallback.

void setOnItemViewClickedListener(BaseOnItemViewClickedListener listener)

This listener is called every time there is a click in RowsFragment.

void setOnItemViewSelectedListener(BaseOnItemViewSelectedListener listener)

This listener is called every time there is a selection in RowsFragment.

final void setOnKeyInterceptListener(View.OnKeyListener handler)

Sets the input event handler.

void setOnPlaybackItemViewClickedListener(BaseOnItemViewClickedListener listener)

Sets the BaseOnItemViewClickedListener that would be invoked for clicks only on PlaybackRowPresenter.ViewHolder.

void setPlaybackRow(Row row)

Sets the playback row for the playback controls.

void setPlaybackRowPresenter(PlaybackRowPresenter presenter)

Sets the presenter for rendering the playback row set by setPlaybackRow(Row).

void setPlaybackSeekUiClient(PlaybackSeekUi.Client client)

Interface to be implemented by UI widget to support PlaybackSeekUi.

void setSelectedPosition(int position)

Sets the selected row position with smooth animation.

void setSelectedPosition(int position, boolean smooth)

Sets the selected row position.

void showControlsOverlay(boolean runAnimation)

Show controls overlay.

void tickle()

Tickles the playback controls.

Protected methods

void onBufferingStateChanged(boolean start)

Called when media has start or stop buffering.

void onError(int errorCode, CharSequence errorMessage)

Called when media has error.

void onVideoSizeChanged(int videoWidth, int videoHeight)

Called when size of the video changes.

Inherited methods

From class android.app.Fragment
From class java.lang.Object
From interface android.content.ComponentCallbacks2
From interface android.view.View.OnCreateContextMenuListener
From interface android.content.ComponentCallbacks

Constants

BG_DARK

added in version 25.1.0
int BG_DARK

A dark translucent background.

Constant Value: 1 (0x00000001)

BG_LIGHT

added in version 25.1.0
int BG_LIGHT

A light translucent background.

Constant Value: 2 (0x00000002)

BG_NONE

added in version 25.1.0
int BG_NONE

No background.

Constant Value: 0 (0x00000000)

Public constructors

PlaybackFragment

added in version 25.1.0
PlaybackFragment ()

Public methods

fadeOut

added in version 25.1.0
void fadeOut ()

This method is deprecated.
Call hideControlsOverlay(boolean)

Fades out the playback overlay immediately.

getAdapter

added in version 25.1.0
ObjectAdapter getAdapter ()

Returns
ObjectAdapter

getBackgroundType

added in version 25.1.0
int getBackgroundType ()

Returns the background type.

Returns
int

getProgressBarManager

ProgressBarManager getProgressBarManager ()

Returns the ProgressBarManager that will show or hide progress bar in onBufferingStateChanged(boolean).

Returns
ProgressBarManager The ProgressBarManager that will show or hide progress bar in onBufferingStateChanged(boolean).

hideControlsOverlay

void hideControlsOverlay (boolean runAnimation)

Hide controls overlay.

Parameters
runAnimation boolean: True to run animation, false otherwise.

isControlsOverlayAutoHideEnabled

boolean isControlsOverlayAutoHideEnabled ()

Returns true if controls will be auto hidden after a delay when fragment is resumed.

Returns
boolean

isControlsOverlayVisible

boolean isControlsOverlayVisible ()

Returns true if controls overlay is visible, false otherwise.

Returns
boolean True if controls overlay is visible, false otherwise.

See also:

isFadingEnabled

added in version 25.1.0
boolean isFadingEnabled ()

This method is deprecated.
Uses isControlsOverlayAutoHideEnabled()

Returns
boolean

notifyPlaybackRowChanged

added in version 25.1.0
void notifyPlaybackRowChanged ()

Updates the ui when the row data changes.

onCreate

void onCreate (Bundle savedInstanceState)

Called to do initial creation of a fragment. This is called after onAttach(Activity) and before onCreateView(LayoutInflater, ViewGroup, Bundle), but is not called if the fragment instance is retained across Activity re-creation (see setRetainInstance(boolean)).

Note that this can be called while the fragment's activity is still in the process of being created. As such, you can not rely on things like the activity's content view hierarchy being initialized at this point. If you want to do work once the activity itself is created, see onActivityCreated(Bundle).

If your app's targetSdkVersion is M or lower, child fragments being restored from the savedInstanceState are restored after onCreate returns. When targeting N or above and running on an N or newer platform version they are restored by Fragment.onCreate.

Parameters
savedInstanceState Bundle: If the fragment is being re-created from a previous saved state, this is the state.

onCreateView

View onCreateView (LayoutInflater inflater, 
                ViewGroup container, 
                Bundle savedInstanceState)

Called to have the fragment instantiate its user interface view. This is optional, and non-graphical fragments can return null (which is the default implementation). This will be called between onCreate(Bundle) and onActivityCreated(Bundle).

If you return a View from here, you will later be called in onDestroyView() when the view is being released.

Parameters
inflater LayoutInflater: The LayoutInflater object that can be used to inflate any views in the fragment,
container ViewGroup: If non-null, this is the parent view that the fragment's UI should be attached to. The fragment should not add the view itself, but this can be used to generate the LayoutParams of the view.
savedInstanceState Bundle: If non-null, this fragment is being re-constructed from a previous saved state as given here.
Returns
View Return the View for the fragment's UI, or null.

onDestroy

void onDestroy ()

Called when the fragment is no longer in use. This is called after onStop() and before onDetach().

onDestroyView

void onDestroyView ()

Called when the view previously created by onCreateView(LayoutInflater, ViewGroup, Bundle) has been detached from the fragment. The next time the fragment needs to be displayed, a new view will be created. This is called after onStop() and before onDestroy(). It is called regardless of whether onCreateView(LayoutInflater, ViewGroup, Bundle) returned a non-null view. Internally it is called after the view's state has been saved but before it has been removed from its parent.

onPause

void onPause ()

Called when the Fragment is no longer resumed. This is generally tied to Activity.onPause of the containing Activity's lifecycle.

onResume

void onResume ()

Called when the fragment is visible to the user and actively running. This is generally tied to Activity.onResume of the containing Activity's lifecycle.

onStart

void onStart ()

Called when the Fragment is visible to the user. This is generally tied to Activity.onStart of the containing Activity's lifecycle.

onStop

void onStop ()

Called when the Fragment is no longer started. This is generally tied to Activity.onStop of the containing Activity's lifecycle.

onViewCreated

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. This gives subclasses a chance to initialize themselves once they know their view hierarchy has been completely created. The fragment's view hierarchy is not however attached to its parent at this point.

Parameters
view View: The View returned by onCreateView(LayoutInflater, ViewGroup, Bundle).
savedInstanceState Bundle: If non-null, this fragment is being re-constructed from a previous saved state as given here.

setAdapter

added in version 25.1.0
void setAdapter (ObjectAdapter adapter)

Sets the list of rows for the fragment. A default ClassPresenterSelector will be created if getPresenterSelector() is null. if user provides setPlaybackRow(Row) and setPlaybackRowPresenter(PlaybackRowPresenter), the row and presenter will be set onto the adapter.

Parameters
adapter ObjectAdapter: The adapter that contains related rows and optional playback row.

setBackgroundType

added in version 25.1.0
void setBackgroundType (int type)

Sets the background type.

Parameters
type int: One of BG_LIGHT, BG_DARK, or BG_NONE.

setControlsOverlayAutoHideEnabled

void setControlsOverlayAutoHideEnabled (boolean enabled)

Enables or disables auto hiding controls overlay after a short delay fragment is resumed. If enabled and fragment is resumed, the view will fade out after a time period. tickle() will kill the timer, next time fragment is resumed, the timer will be started again if isControlsOverlayAutoHideEnabled() is true.

Parameters
enabled boolean

setFadingEnabled

added in version 25.1.0
void setFadingEnabled (boolean enabled)

This method is deprecated.
Uses setControlsOverlayAutoHideEnabled(boolean)

Parameters
enabled boolean

setHostCallback

added in version 25.1.0
void setHostCallback (PlaybackGlueHost.HostCallback hostCallback)

Sets the PlaybackGlueHost.HostCallback. Implementor of this interface will take appropriate actions to take action when the hosting fragment starts/stops processing.

Parameters
hostCallback PlaybackGlueHost.HostCallback

setOnItemViewClickedListener

added in version 25.1.0
void setOnItemViewClickedListener (BaseOnItemViewClickedListener listener)

This listener is called every time there is a click in RowsFragment. This can be used by users to take additional actions such as animations.

Parameters
listener BaseOnItemViewClickedListener

setOnItemViewSelectedListener

added in version 25.3.0
void setOnItemViewSelectedListener (BaseOnItemViewSelectedListener listener)

This listener is called every time there is a selection in RowsFragment. This can be used by users to take additional actions such as animations.

Parameters
listener BaseOnItemViewSelectedListener

setOnKeyInterceptListener

added in version 25.1.0
void setOnKeyInterceptListener (View.OnKeyListener handler)

Sets the input event handler.

Parameters
handler View.OnKeyListener

setOnPlaybackItemViewClickedListener

added in version 25.1.0
void setOnPlaybackItemViewClickedListener (BaseOnItemViewClickedListener listener)

Sets the BaseOnItemViewClickedListener that would be invoked for clicks only on PlaybackRowPresenter.ViewHolder.

Parameters
listener BaseOnItemViewClickedListener

setPlaybackRow

added in version 25.1.0
void setPlaybackRow (Row row)

Sets the playback row for the playback controls. The row will be set as first element of adapter if the adapter is ArrayObjectAdapter or SparseArrayObjectAdapter.

Parameters
row Row: The row that represents the playback.

setPlaybackRowPresenter

added in version 25.1.0
void setPlaybackRowPresenter (PlaybackRowPresenter presenter)

Sets the presenter for rendering the playback row set by setPlaybackRow(Row). If adapter does not set a PresenterSelector, setAdapter(ObjectAdapter) will create a ClassPresenterSelector by default and map from the row object class to this PlaybackRowPresenter.

Parameters
presenter PlaybackRowPresenter: Presenter used to render setPlaybackRow(Row).

setPlaybackSeekUiClient

void setPlaybackSeekUiClient (PlaybackSeekUi.Client client)

Interface to be implemented by UI widget to support PlaybackSeekUi.

Parameters
client PlaybackSeekUi.Client

setSelectedPosition

added in version 25.1.0
void setSelectedPosition (int position)

Sets the selected row position with smooth animation.

Parameters
position int

setSelectedPosition

added in version 25.1.0
void setSelectedPosition (int position, 
                boolean smooth)

Sets the selected row position.

Parameters
position int
smooth boolean

showControlsOverlay

void showControlsOverlay (boolean runAnimation)

Show controls overlay.

Parameters
runAnimation boolean: True to run animation, false otherwise.

tickle

added in version 25.1.0
void tickle ()

Tickles the playback controls. Fades in the view if it was faded out. tickle() will also kill the timer created by setControlsOverlayAutoHideEnabled(boolean). When next time fragment is resumed, the timer will be started again if isControlsOverlayAutoHideEnabled() is true. In most cases app does not need call this method, tickling on input events is handled by the fragment.

Protected methods

onBufferingStateChanged

void onBufferingStateChanged (boolean start)

Called when media has start or stop buffering. App may override. The default initial state is not buffering.

Parameters
start boolean: True for buffering start, false otherwise.

onError

void onError (int errorCode, 
                CharSequence errorMessage)

Called when media has error. App may override.

Parameters
errorCode int: Optional error code for specific implementation.
errorMessage CharSequence: Optional error message for specific implementation.

onVideoSizeChanged

void onVideoSizeChanged (int videoWidth, 
                int videoHeight)

Called when size of the video changes. App may override.

Parameters
videoWidth int: Intrinsic width of video
videoHeight int: Intrinsic height of video
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