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MediaRouter2

public final class MediaRouter2
extends Object

java.lang.Object
↳	android.media.MediaRouter2

This API is not generally intended for third party application developers. Use the AndroidX Media Router Library for consistent behavior across all devices. Media Router 2 allows applications to control the routing of media channels and streams from the current device to remote speakers and devices.

Summary

Nested classes
`class`	`MediaRouter2.ControllerCallback` Callback for receiving `RoutingController` updates.
`interface`	`MediaRouter2.OnGetControllerHintsListener` A listener interface to send optional app-specific hints when creating a `RoutingController`.
`class`	`MediaRouter2.RouteCallback` Callback for receiving events about media route discovery.
`class`	`MediaRouter2.RoutingController` A class to control media routing session in media route provider.
`class`	`MediaRouter2.TransferCallback` Callback for receiving events on media transfer.

Public methods
`MediaRouter2.RoutingController`	`getController(String id)` Gets a `RoutingController` whose ID is equal to the given ID.
`List<MediaRouter2.RoutingController>`	`getControllers()` Gets the list of currently active `routing controllers` on which media can be played.
`static MediaRouter2`	`getInstance(Context context)` Gets an instance of the media router associated with the context.
`List<MediaRoute2Info>`	`getRoutes()` Gets the unmodifiable list of `routes` currently known to the media router.
`MediaRouter2.RoutingController`	`getSystemController()` Gets a `RoutingController` which can control the routes provided by system.
`void`	`registerControllerCallback(Executor executor, MediaRouter2.ControllerCallback callback)` Registers a `ControllerCallback`.
`void`	`registerRouteCallback(Executor executor, MediaRouter2.RouteCallback routeCallback, RouteDiscoveryPreference preference)` Registers a callback to discover routes and to receive events when they change.
`void`	`registerTransferCallback(Executor executor, MediaRouter2.TransferCallback callback)` Registers a callback to get the result of `transferTo(android.media.MediaRoute2Info)`.
`void`	`setOnGetControllerHintsListener(MediaRouter2.OnGetControllerHintsListener listener)` Sets an `OnGetControllerHintsListener` to send hints when creating a `RoutingController`.
`void`	`stop()` Stops the current media routing.
`void`	`transferTo(MediaRoute2Info route)` Transfers the current media to the given route.
`void`	`unregisterControllerCallback(MediaRouter2.ControllerCallback callback)` Unregisters a `ControllerCallback`.
`void`	`unregisterRouteCallback(MediaRouter2.RouteCallback routeCallback)` Unregisters the given callback.
`void`	`unregisterTransferCallback(MediaRouter2.TransferCallback callback)` Unregisters the given callback.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public methods

getController

public MediaRouter2.RoutingController getController (String id)

Gets a RoutingController whose ID is equal to the given ID. Returns null if there is no matching controller.

Parameters
`id`	`String`: This value cannot be `null`.

Returns
`MediaRouter2.RoutingController`

getControllers

public List<MediaRouter2.RoutingController> getControllers ()

Gets the list of currently active routing controllers on which media can be played.

Note: The list returned here will never be empty. The first element in the list is always the system controller.

Returns
`List<MediaRouter2.RoutingController>`	This value cannot be `null`.

getInstance

public static MediaRouter2 getInstance (Context context)

Gets an instance of the media router associated with the context.

Parameters
`context`	`Context`: This value cannot be `null`.

Returns
`MediaRouter2`	This value cannot be `null`.

getRoutes

public List<MediaRoute2Info> getRoutes ()

Gets the unmodifiable list of routes currently known to the media router.

Please note that the list can be changed before callbacks are invoked.

Returns
`List<MediaRoute2Info>`	the list of routes that contains at least one of the route features in discovery preferences registered by the application This value cannot be `null`.

getSystemController

public MediaRouter2.RoutingController getSystemController ()

Gets a RoutingController which can control the routes provided by system. e.g. Phone speaker, wired headset, Bluetooth, etc.

Note: The system controller can't be released. Calling RoutingController#release() will be ignored.

This method always returns the same instance.

Returns
`MediaRouter2.RoutingController`	This value cannot be `null`.

registerControllerCallback

public void registerControllerCallback (Executor executor, 
                MediaRouter2.ControllerCallback callback)

Registers a ControllerCallback. If you register the same callback twice or more, it will be ignored.

Parameters
`executor`	`Executor`: This value cannot be `null`. Callback and listener events are dispatched through this `Executor`, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use `Context.getMainExecutor()`. To dispatch events through a shared thread pool, you can use `AsyncTask#THREAD_POOL_EXECUTOR`.
`callback`	`MediaRouter2.ControllerCallback`: This value cannot be `null`.

See also:

unregisterControllerCallback(ControllerCallback)

registerRouteCallback

public void registerRouteCallback (Executor executor, 
                MediaRouter2.RouteCallback routeCallback, 
                RouteDiscoveryPreference preference)

Registers a callback to discover routes and to receive events when they change.

If the specified callback is already registered, its registration will be updated for the given executor and discovery preference.

Parameters
`executor`	`Executor`: This value cannot be `null`. Callback and listener events are dispatched through this `Executor`, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use `Context.getMainExecutor()`. To dispatch events through a shared thread pool, you can use `AsyncTask#THREAD_POOL_EXECUTOR`.
`routeCallback`	`MediaRouter2.RouteCallback`: This value cannot be `null`.
`preference`	`RouteDiscoveryPreference`: This value cannot be `null`.

registerTransferCallback

public void registerTransferCallback (Executor executor, 
                MediaRouter2.TransferCallback callback)

Registers a callback to get the result of transferTo(android.media.MediaRoute2Info). If you register the same callback twice or more, it will be ignored.

Parameters

Parameters
`executor`	`Executor`: the executor to execute the callback on This value cannot be `null`. Callback and listener events are dispatched through this `Executor`, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use `Context.getMainExecutor()`. To dispatch events through a shared thread pool, you can use `AsyncTask#THREAD_POOL_EXECUTOR`.
`callback`	`MediaRouter2.TransferCallback`: the callback to register This value cannot be `null`.

executor

Executor: the executor to execute the callback on This value cannot be null. Callback and listener events are dispatched through this Executor, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use Context.getMainExecutor(). To dispatch events through a shared thread pool, you can use AsyncTask#THREAD_POOL_EXECUTOR.

callback

MediaRouter2.TransferCallback: the callback to register This value cannot be null.

See also:

unregisterTransferCallback(MediaRouter2.TransferCallback)

setOnGetControllerHintsListener

public void setOnGetControllerHintsListener (MediaRouter2.OnGetControllerHintsListener listener)

Sets an OnGetControllerHintsListener to send hints when creating a RoutingController. To send the hints, listener should be set BEFORE calling transferTo(android.media.MediaRoute2Info).

Parameters
`listener`	`MediaRouter2.OnGetControllerHintsListener`: A listener to send optional app-specific hints when creating a controller. `null` for unset. This value may be `null`.

stop

public void stop ()

Stops the current media routing. If the system controller controls the media routing, this method is a no-op.

transferTo

public void transferTo (MediaRoute2Info route)

Transfers the current media to the given route. If it's necessary a new RoutingController is created or it is handled within the current routing controller.

Parameters
`route`	`MediaRoute2Info`: the route you want to transfer the current media to. Pass `null` to stop routing of the current media. This value cannot be `null`.

See also:

unregisterControllerCallback

public void unregisterControllerCallback (MediaRouter2.ControllerCallback callback)

Unregisters a ControllerCallback. The callback will no longer receive events. If the callback has not been added or been removed already, it is ignored.

Parameters
`callback`	`MediaRouter2.ControllerCallback`: This value cannot be `null`.

See also:

registerControllerCallback(Executor, ControllerCallback)

unregisterRouteCallback

public void unregisterRouteCallback (MediaRouter2.RouteCallback routeCallback)

Unregisters the given callback. The callback will no longer receive events. If the callback has not been added or been removed already, it is ignored.

Parameters
`routeCallback`	`MediaRouter2.RouteCallback`: the callback to unregister This value cannot be `null`.

See also:

registerRouteCallback(Executor, MediaRouter2.RouteCallback, RouteDiscoveryPreference)

unregisterTransferCallback

public void unregisterTransferCallback (MediaRouter2.TransferCallback callback)

Unregisters the given callback. The callback will no longer receive events. If the callback has not been added or been removed already, it is ignored.

Parameters
`callback`	`MediaRouter2.TransferCallback`: the callback to unregister This value cannot be `null`.

See also:

registerTransferCallback(Executor, MediaRouter2.TransferCallback)

Annotations

Interfaces

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Exceptions

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MediaRouter2

Summary

Nested classes

Public methods

Inherited methods

Public methods

getController

getControllers

getInstance

getRoutes

getSystemController

registerControllerCallback

registerRouteCallback

registerTransferCallback

setOnGetControllerHintsListener

stop

transferTo

unregisterControllerCallback

unregisterRouteCallback

unregisterTransferCallback