# MediaControllerAdapter
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
belongs to Maven artifact com.android.support:leanback-v17:28.0.0-alpha1
Summary:[Ctors](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#pubctors)\|[Methods](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#inhmethods)\|[\[Expand All\]](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#)
# MediaControllerAdapter
| This package is part of the Android[support library](https://developer.android.com/topic/libraries/support-library)which is no longer maintained. The support library has been superseded by[AndroidX](https://developer.android.com/jetpack/androidx)which is part of[Jetpack](https://developer.android.com/jetpack). We recommend using the AndroidX libraries in all new projects. You should also consider[migrating](https://developer.android.com/jetpack/androidx/migrate)existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library[class mappings](https://developer.android.com/jetpack/androidx/migrate/class-mappings).
`
public
class
MediaControllerAdapter
`
`
``
extends `[PlayerAdapter](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter)`
``
`
|---|---|-----------------------------------------------------------|
| java.lang.Object |||
| ↳ | [android.support.v17.leanback.media.PlayerAdapter](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter) ||
| | ↳ | android.support.v17.leanback.media.MediaControllerAdapter |
*** ** * ** ***
A helper class for implementing a adapter layer for[MediaControllerCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat).
## Summary
| ### Public constructors ||
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|
| ` `[MediaControllerAdapter](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#MediaControllerAdapter(android.support.v4.media.session.MediaControllerCompat))`(`[MediaControllerCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat)` controller) ` Constructor for the adapter using[MediaControllerCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat). |
| ### Public methods ||
|----------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` void` | ` `[fastForward](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#fastForward())`() ` Optional method. |
| ` long` | ` `[getBufferedPosition](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#getBufferedPosition())`() ` Returns the current buffered position of the media item in milliseconds. |
| ` long` | ` `[getCurrentPosition](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#getCurrentPosition())`() ` Returns the current position of the media item in milliseconds. |
| ` long` | ` `[getDuration](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#getDuration())`() ` Returns the duration of the media item in milliseconds. |
| ` `[Drawable](https://developer.android.com/reference/android/graphics/drawable/Drawable.html) | ` `[getMediaArt](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#getMediaArt(android.content.Context))`(`[Context](https://developer.android.com/reference/android/content/Context.html)` context) ` Get current media's drawable art. |
| ` `[MediaControllerCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat) | ` `[getMediaController](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#getMediaController())`() ` Return the object of[MediaControllerCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat)from this class. |
| ` CharSequence` | ` `[getMediaSubtitle](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#getMediaSubtitle())`() ` Get current media's subtitle. |
| ` CharSequence` | ` `[getMediaTitle](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#getMediaTitle())`() ` Get current media's title. |
| ` long` | ` `[getSupportedActions](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#getSupportedActions())`() ` Return xor combination of values defined in PlaybackBaseControlGlue. |
| ` boolean` | ` `[isPlaying](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#isPlaying())`() ` Returns true if media is currently playing. |
| ` void` | ` `[next](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#next())`() ` Optional method. |
| ` void` | ` `[onAttachedToHost](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#onAttachedToHost(android.support.v17.leanback.media.PlaybackGlueHost))`(`[PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost)` host) ` This method is called attached to associated[PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost). |
| ` void` | ` `[onDetachedFromHost](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#onDetachedFromHost())`() ` This method is called when current associated[PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost)is attached to a different[PlaybackGlue](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlue)or[PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost)is destroyed. |
| ` void` | ` `[pause](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#pause())`() ` Pauses the media player. |
| ` void` | ` `[play](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#play())`() ` Starts the media player. |
| ` void` | ` `[previous](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#previous())`() ` Optional method. |
| ` void` | ` `[rewind](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#rewind())`() ` Optional method. |
| ` void` | ` `[seekTo](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#seekTo(long))`(long positionInMs) ` Seek to new position. |
| ` void` | ` `[setProgressUpdatingEnabled](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#setProgressUpdatingEnabled(boolean))`(boolean enabled) ` Implement this method to enable or disable progress updating. |
| ` void` | ` `[setRepeatAction](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#setRepeatAction(int))`(int repeatActionIndex) ` Optional method. |
| ` void` | ` `[setShuffleAction](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#setShuffleAction(int))`(int shuffleActionIndex) ` Optional method. |
| ### Inherited methods |
|-----------------------|---|
| [](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#)From class` `[android.support.v17.leanback.media.PlayerAdapter](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter)` ` |--------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` void` | ` `[fastForward](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#fastForward())`() ` Optional method. | | ` long` | ` `[getBufferedPosition](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#getBufferedPosition())`() ` Returns the current buffered position of the media item in milliseconds. | | ` final `[PlayerAdapter.Callback](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter.Callback) | ` `[getCallback](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#getCallback())`() ` Gets callback for event of PlayerAdapter. | | ` long` | ` `[getCurrentPosition](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#getCurrentPosition())`() ` Returns the current position of the media item in milliseconds. | | ` long` | ` `[getDuration](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#getDuration())`() ` Returns the duration of the media item in milliseconds. | | ` long` | ` `[getSupportedActions](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#getSupportedActions())`() ` Return xor combination of values defined in PlaybackBaseControlGlue. | | ` boolean` | ` `[isPlaying](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#isPlaying())`() ` Returns true if media is currently playing. | | ` boolean` | ` `[isPrepared](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#isPrepared())`() ` | | ` void` | ` `[next](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#next())`() ` Optional method. | | ` void` | ` `[onAttachedToHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#onAttachedToHost(android.support.v17.leanback.media.PlaybackGlueHost))`(`[PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost)` host) ` This method is called attached to associated[PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost). | | ` void` | ` `[onDetachedFromHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#onDetachedFromHost())`() ` This method is called when current associated[PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost)is attached to a different[PlaybackGlue](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlue)or[PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost)is destroyed. | | ` abstract void` | ` `[pause](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#pause())`() ` Pauses the media player. | | ` abstract void` | ` `[play](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#play())`() ` Starts the media player. | | ` void` | ` `[previous](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#previous())`() ` Optional method. | | ` void` | ` `[rewind](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#rewind())`() ` Optional method. | | ` void` | ` `[seekTo](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#seekTo(long))`(long positionInMs) ` Seek to new position. | | ` final void` | ` `[setCallback](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#setCallback(android.support.v17.leanback.media.PlayerAdapter.Callback))`(`[PlayerAdapter.Callback](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter.Callback)` callback) ` Sets callback for event of PlayerAdapter. | | ` void` | ` `[setProgressUpdatingEnabled](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#setProgressUpdatingEnabled(boolean))`(boolean enable) ` Implement this method to enable or disable progress updating. | | ` void` | ` `[setRepeatAction](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#setRepeatAction(int))`(int repeatActionIndex) ` Optional method. | | ` void` | ` `[setShuffleAction](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#setShuffleAction(int))`(int shuffleActionIndex) ` Optional method. | ||
| [](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter#)From class` java.lang.Object ` |-------------------|-------------------------------| | ` Object` | ` clone() ` | | ` boolean` | ` equals(Object arg0) ` | | ` void` | ` finalize() ` | | ` final Class` | ` getClass() ` | | ` int` | ` hashCode() ` | | ` final void` | ` notify() ` | | ` final void` | ` notifyAll() ` | | ` String` | ` toString() ` | | ` final void` | ` wait(long arg0, int arg1) ` | | ` final void` | ` wait(long arg0) ` | | ` final void` | ` wait() ` | ||
## Public constructors
### MediaControllerAdapter
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
MediaControllerAdapter (MediaControllerCompat controller)
```
Constructor for the adapter using[MediaControllerCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat).
| Parameters ||
|--------------|-------------------------------------------------------------------|
| `controller` | `MediaControllerCompat`: Object of MediaControllerCompat..
|
## Public methods
### fastForward
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void fastForward ()
```
Optional method. Override this method if[getSupportedActions()](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#getSupportedActions())include[ACTION_FAST_FORWARD](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackBaseControlGlue#ACTION_FAST_FORWARD)to fast forward current media item.
### getBufferedPosition
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
long getBufferedPosition ()
```
Returns the current buffered position of the media item in milliseconds.
| Returns ||
|--------|--------|
| `long` |
|
### getCurrentPosition
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
long getCurrentPosition ()
```
Returns the current position of the media item in milliseconds.
| Returns ||
|--------|--------|
| `long` |
|
### getDuration
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
long getDuration ()
```
Returns the duration of the media item in milliseconds.
| Returns ||
|--------|--------|
| `long` |
|
### getMediaArt
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
Drawable getMediaArt (Context context)
```
Get current media's drawable art.
| Parameters ||
|-----------|------------------|
| `context` | `Context`
|
| Returns ||
|---------------------------------------------------------------------------------------------|---------------------------------------|
| [Drawable](https://developer.android.com/reference/android/graphics/drawable/Drawable.html) | Drawable art of current media.
|
### getMediaController
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
MediaControllerCompat getMediaController ()
```
Return the object of[MediaControllerCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat)from this class.
| Returns ||
|-------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------|
| [MediaControllerCompat](https://developer.android.com/reference/android/support/v4/media/session/MediaControllerCompat) | Media Controller Compat object owned by this class.
|
### getMediaSubtitle
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
CharSequence getMediaSubtitle ()
```
Get current media's subtitle.
| Returns ||
|----------------|-----------------------------------|
| `CharSequence` | Subtitle of current media.
|
### getMediaTitle
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
CharSequence getMediaTitle ()
```
Get current media's title.
| Returns ||
|----------------|--------------------------------|
| `CharSequence` | Title of current media.
|
### getSupportedActions
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
long getSupportedActions ()
```
Return xor combination of values defined in PlaybackBaseControlGlue. Default is PLAY_PAUSE (unless subclass enforce to be 0)
| Returns ||
|--------|--------|
| `long` |
|
### isPlaying
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
boolean isPlaying ()
```
Returns true if media is currently playing.
| Returns ||
|-----------|--------|
| `boolean` |
|
### next
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void next ()
```
Optional method. Override this method if[getSupportedActions()](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#getSupportedActions())include[ACTION_SKIP_TO_NEXT](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackBaseControlGlue#ACTION_SKIP_TO_NEXT)to skip to next item.
### onAttachedToHost
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void onAttachedToHost (PlaybackGlueHost host)
```
This method is called attached to associated[PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost).
### onDetachedFromHost
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void onDetachedFromHost ()
```
This method is called when current associated[PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost)is attached to a different[PlaybackGlue](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlue)or[PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost)is destroyed. Subclass may override. A typical implementation will release resources (e.g. MediaPlayer or connection to playback service) in this method.
### pause
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void pause ()
```
Pauses the media player.
### play
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void play ()
```
Starts the media player.
### previous
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void previous ()
```
Optional method. Override this method if[getSupportedActions()](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#getSupportedActions())include[ACTION_SKIP_TO_PREVIOUS](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackBaseControlGlue#ACTION_SKIP_TO_PREVIOUS)to skip to previous item.
### rewind
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void rewind ()
```
Optional method. Override this method if[getSupportedActions()](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#getSupportedActions())include[ACTION_REWIND](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackBaseControlGlue#ACTION_REWIND)to rewind in current media item.
### seekTo
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void seekTo (long positionInMs)
```
Seek to new position.
| Parameters ||
|----------------|----------------------------------------------|
| `positionInMs` | `long`: New position in milliseconds.
|
### setProgressUpdatingEnabled
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void setProgressUpdatingEnabled (boolean enabled)
```
Implement this method to enable or disable progress updating.
| Parameters ||
|-----------|----------------------------------------------------------------------|
| `enabled` | `boolean`: True to enable progress updating, false otherwise.
|
### setRepeatAction
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void setRepeatAction (int repeatActionIndex)
```
Optional method. Override this method if[getSupportedActions()](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#getSupportedActions())include[ACTION_REPEAT](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackBaseControlGlue#ACTION_REPEAT)to set the repeat action.
| Parameters ||
|---------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `repeatActionIndex` | `int`: The shuffle action. Must be one of the followings:[INDEX_ONE](https://developer.android.com/reference/android/support/v17/leanback/widget/PlaybackControlsRow.RepeatAction#INDEX_ONE)[INDEX_ALL](https://developer.android.com/reference/android/support/v17/leanback/widget/PlaybackControlsRow.RepeatAction#INDEX_ALL),[INDEX_NONE](https://developer.android.com/reference/android/support/v17/leanback/widget/PlaybackControlsRow.RepeatAction#INDEX_NONE),
|
### setShuffleAction
added in[version 27.1.0](https://developer.android.com/topic/libraries/support-library/revisions)
```
void setShuffleAction (int shuffleActionIndex)
```
Optional method. Override this method if[getSupportedActions()](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter#getSupportedActions())include[ACTION_SHUFFLE](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackBaseControlGlue#ACTION_SHUFFLE)to set the shuffle action.
| Parameters ||
|----------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `shuffleActionIndex` | `int`: The repeat action. Must be one of the followings:[INDEX_OFF](https://developer.android.com/reference/android/support/v17/leanback/widget/PlaybackControlsRow.ShuffleAction#INDEX_OFF)[INDEX_ON](https://developer.android.com/reference/android/support/v17/leanback/widget/PlaybackControlsRow.ShuffleAction#INDEX_ON)
|
-
## Interfaces
- [SurfaceHolderGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/SurfaceHolderGlueHost)
-
## Classes
- [MediaControllerAdapter](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerAdapter)
- [MediaControllerGlue](https://developer.android.com/reference/android/support/v17/leanback/media/MediaControllerGlue)
- [MediaPlayerAdapter](https://developer.android.com/reference/android/support/v17/leanback/media/MediaPlayerAdapter)
- [PlaybackBannerControlGlue](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackBannerControlGlue)
- [PlaybackBaseControlGlue](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackBaseControlGlue)
- [PlaybackControlGlue](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackControlGlue)
- [PlaybackGlue](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlue)
- [PlaybackGlue.PlayerCallback](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlue.PlayerCallback)
- [PlaybackGlueHost](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost)
- [PlaybackGlueHost.HostCallback](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost.HostCallback)
- [PlaybackGlueHost.PlayerCallback](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackGlueHost.PlayerCallback)
- [PlaybackTransportControlGlue](https://developer.android.com/reference/android/support/v17/leanback/media/PlaybackTransportControlGlue)
- [PlayerAdapter](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter)
- [PlayerAdapter.Callback](https://developer.android.com/reference/android/support/v17/leanback/media/PlayerAdapter.Callback)