AudioRouting

public interface AudioRouting

android.media.AudioRouting

Known Indirect Subclasses

AudioRecord, AudioTrack

AudioRouting defines an interface for controlling routing and routing notifications in AudioTrack and AudioRecord objects.

Summary

Nested classes
`interface`	`AudioRouting.OnRoutingChangedListener` Defines the interface by which applications can receive notifications of routing changes for the associated `AudioRouting`.

Public methods
`abstract void`	`addOnRoutingChangedListener(AudioRouting.OnRoutingChangedListener listener, Handler handler)` Adds an `AudioRouting.OnRoutingChangedListener` to receive notifications of routing changes on this AudioTrack/AudioRecord.
`abstract AudioDeviceInfo`	`getPreferredDevice()` Returns the selected output/input specified by `setPreferredDevice(AudioDeviceInfo)`.
`abstract AudioDeviceInfo`	`getRoutedDevice()` Returns an `AudioDeviceInfo` identifying the current routing of this AudioTrack/AudioRecord.
`abstract void`	`removeOnRoutingChangedListener(AudioRouting.OnRoutingChangedListener listener)` Removes an `AudioRouting.OnRoutingChangedListener` which has been previously added to receive rerouting notifications.
`abstract boolean`	`setPreferredDevice(AudioDeviceInfo deviceInfo)` Specifies an audio device (via an `AudioDeviceInfo` object) to route the output/input to/from.

Public methods

addOnRoutingChangedListener

Added in API level 24

void addOnRoutingChangedListener (AudioRouting.OnRoutingChangedListener listener, 
                Handler handler)

Adds an AudioRouting.OnRoutingChangedListener to receive notifications of routing changes on this AudioTrack/AudioRecord.

Parameters
`listener`	`AudioRouting.OnRoutingChangedListener`: The `AudioRouting.OnRoutingChangedListener` interface to receive notifications of rerouting events.
`handler`	`Handler`: Specifies the `Handler` object for the thread on which to execute the callback. If `null`, the `Handler` associated with the main `Looper` will be used.

getPreferredDevice

Added in API level 24

AudioDeviceInfo getPreferredDevice ()

Returns the selected output/input specified by setPreferredDevice(AudioDeviceInfo). Note that this is not guaranteed to correspond to the actual device being used for playback/recording.

Returns
`AudioDeviceInfo`

getRoutedDevice

Added in API level 24

AudioDeviceInfo getRoutedDevice ()

Returns an AudioDeviceInfo identifying the current routing of this AudioTrack/AudioRecord. Note: The query is only valid if the AudioTrack/AudioRecord is currently playing. If it is not, getRoutedDevice() will return null.

Returns
`AudioDeviceInfo`

removeOnRoutingChangedListener

Added in API level 24

void removeOnRoutingChangedListener (AudioRouting.OnRoutingChangedListener listener)

Removes an AudioRouting.OnRoutingChangedListener which has been previously added to receive rerouting notifications.

Parameters
`listener`	`AudioRouting.OnRoutingChangedListener`: The previously added `AudioRouting.OnRoutingChangedListener` interface to remove.

setPreferredDevice

Added in API level 24

boolean setPreferredDevice (AudioDeviceInfo deviceInfo)

Specifies an audio device (via an AudioDeviceInfo object) to route the output/input to/from.

Parameters
`deviceInfo`	`AudioDeviceInfo`: The `AudioDeviceInfo` specifying the audio sink or source. If deviceInfo is null, default routing is restored.

Returns
`boolean`	true if succesful, false if the specified `AudioDeviceInfo` is non-null and does not correspond to a valid audio device.

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AudioRouting

Summary

Nested classes

Public methods

Public methods

addOnRoutingChangedListener

getPreferredDevice

getRoutedDevice

removeOnRoutingChangedListener

setPreferredDevice

Interfaces

Classes

Exceptions