AudioManager

ACTION_AUDIO_BECOMING_NOISY

public static final String ACTION_AUDIO_BECOMING_NOISY

Broadcast intent, a hint for applications that audio is about to become 'noisy' due to a change in audio outputs. For example, this intent may be sent when a wired headset is unplugged, or when an A2DP audio sink is disconnected, and the audio system is about to automatically switch audio route to the speaker. Applications that are controlling audio streams may consider pausing, reducing volume or some other action on receipt of this intent so as not to surprise the user with audio from the speaker.

Constant Value: "android.media.AUDIO_BECOMING_NOISY"

ACTION_HDMI_AUDIO_PLUG

public static final String ACTION_HDMI_AUDIO_PLUG

Broadcast Action: A sticky broadcast indicating an HDMI cable was plugged or unplugged. The intent will have the following extra values: EXTRA_AUDIO_PLUG_STATE, EXTRA_MAX_CHANNEL_COUNT, EXTRA_ENCODINGS.

It can only be received by explicitly registering for it with Context.registerReceiver(BroadcastReceiver, IntentFilter).

Constant Value: "android.media.action.HDMI_AUDIO_PLUG"

ACTION_HEADSET_PLUG

public static final String ACTION_HEADSET_PLUG

Broadcast Action: Wired Headset plugged in or unplugged. You cannot receive this through components declared in manifests, only by explicitly registering for it with Context.registerReceiver().

The intent will have the following extra values:

• state - 0 for unplugged, 1 for plugged.
• name - Headset type, human readable string
• microphone - 1 if headset has a microphone, 0 otherwise

Constant Value: "android.intent.action.HEADSET_PLUG"

ACTION_MICROPHONE_MUTE_CHANGED

public static final String ACTION_MICROPHONE_MUTE_CHANGED

Broadcast Action: microphone muting state changed. You cannot receive this through components declared in manifests, only by explicitly registering for it with Context.registerReceiver().

The intent has no extra values, use isMicrophoneMute() to check whether the microphone is muted.

Constant Value: "android.media.action.MICROPHONE_MUTE_CHANGED"

ACTION_SCO_AUDIO_STATE_CHANGED

public static final String ACTION_SCO_AUDIO_STATE_CHANGED

This constant was deprecated in API level 15.
Use ACTION_SCO_AUDIO_STATE_UPDATED instead

Sticky broadcast intent action indicating that the Bluetooth SCO audio connection state has changed. The intent contains on extra EXTRA_SCO_AUDIO_STATE indicating the new state which is either SCO_AUDIO_STATE_DISCONNECTED or SCO_AUDIO_STATE_CONNECTED

Constant Value: "android.media.SCO_AUDIO_STATE_CHANGED"

ACTION_SCO_AUDIO_STATE_UPDATED

public static final String ACTION_SCO_AUDIO_STATE_UPDATED

Sticky broadcast intent action indicating that the Bluetooth SCO audio connection state has been updated.

This intent has two extras:

• EXTRA_SCO_AUDIO_STATE - The new SCO audio state.
• EXTRA_SCO_AUDIO_PREVIOUS_STATE- The previous SCO audio state.

EXTRA_SCO_AUDIO_STATE or EXTRA_SCO_AUDIO_PREVIOUS_STATE can be any of:

• SCO_AUDIO_STATE_DISCONNECTED,
• SCO_AUDIO_STATE_CONNECTING or
• SCO_AUDIO_STATE_CONNECTED,

Constant Value: "android.media.ACTION_SCO_AUDIO_STATE_UPDATED"

ACTION_SPEAKERPHONE_STATE_CHANGED

public static final String ACTION_SPEAKERPHONE_STATE_CHANGED

Broadcast Action: speakerphone state changed. You cannot receive this through components declared in manifests, only by explicitly registering for it with Context.registerReceiver().

The intent has no extra values, use isSpeakerphoneOn() to check whether the speakerphone functionality is enabled or not.

Constant Value: "android.media.action.SPEAKERPHONE_STATE_CHANGED"

ADJUST_LOWER

public static final int ADJUST_LOWER

Decrease the ringer volume.

Constant Value: -1 (0xffffffff)

ADJUST_MUTE

public static final int ADJUST_MUTE

Mute the volume. Has no effect if the stream is already muted.

Constant Value: -100 (0xffffff9c)

ADJUST_RAISE

public static final int ADJUST_RAISE

Increase the ringer volume.

Constant Value: 1 (0x00000001)

ADJUST_SAME

public static final int ADJUST_SAME

Maintain the previous ringer volume. This may be useful when needing to show the volume toast without actually modifying the volume.

Constant Value: 0 (0x00000000)

ADJUST_TOGGLE_MUTE

public static final int ADJUST_TOGGLE_MUTE

Toggle the mute state. If muted the stream will be unmuted. If not muted the stream will be muted.

Constant Value: 101 (0x00000065)

ADJUST_UNMUTE

public static final int ADJUST_UNMUTE

Unmute the volume. Has no effect if the stream is not muted.

Constant Value: 100 (0x00000064)

AUDIOFOCUS_GAIN

public static final int AUDIOFOCUS_GAIN

Used to indicate a gain of audio focus, or a request of audio focus, of unknown duration.

Constant Value: 1 (0x00000001)

AUDIOFOCUS_GAIN_TRANSIENT

public static final int AUDIOFOCUS_GAIN_TRANSIENT

Used to indicate a temporary gain or request of audio focus, anticipated to last a short amount of time. Examples of temporary changes are the playback of driving directions, or an event notification.

Constant Value: 2 (0x00000002)

AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE

public static final int AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE

Used to indicate a temporary request of audio focus, anticipated to last a short amount of time, during which no other applications, or system components, should play anything. Examples of exclusive and transient audio focus requests are voice memo recording and speech recognition, during which the system shouldn't play any notifications, and media playback should have paused.

Constant Value: 4 (0x00000004)

AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK

public static final int AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK

Used to indicate a temporary request of audio focus, anticipated to last a short amount of time, and where it is acceptable for other audio applications to keep playing after having lowered their output level (also referred to as "ducking"). Examples of temporary changes are the playback of driving directions where playback of music in the background is acceptable.

Constant Value: 3 (0x00000003)

AUDIOFOCUS_LOSS

public static final int AUDIOFOCUS_LOSS

Used to indicate a loss of audio focus of unknown duration.

Constant Value: -1 (0xffffffff)

AUDIOFOCUS_LOSS_TRANSIENT

public static final int AUDIOFOCUS_LOSS_TRANSIENT

Used to indicate a transient loss of audio focus.

Constant Value: -2 (0xfffffffe)

AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK

public static final int AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK

Used to indicate a transient loss of audio focus where the loser of the audio focus can lower its output volume if it wants to continue playing (also referred to as "ducking"), as the new focus owner doesn't require others to be silent.

Constant Value: -3 (0xfffffffd)

AUDIOFOCUS_NONE

public static final int AUDIOFOCUS_NONE

Used to indicate no audio focus has been gained or lost, or requested.

Constant Value: 0 (0x00000000)

AUDIOFOCUS_REQUEST_DELAYED

public static final int AUDIOFOCUS_REQUEST_DELAYED

A focus change request whose granting is delayed: the request was successful, but the requester will only be granted audio focus once the condition that prevented immediate granting has ended. See requestAudioFocus(android.media.AudioFocusRequest) and AudioFocusRequest.Builder.setAcceptsDelayedFocusGain(boolean)

Constant Value: 2 (0x00000002)

AUDIOFOCUS_REQUEST_FAILED

public static final int AUDIOFOCUS_REQUEST_FAILED

A failed focus change request.

Constant Value: 0 (0x00000000)

AUDIOFOCUS_REQUEST_GRANTED

public static final int AUDIOFOCUS_REQUEST_GRANTED

A successful focus change request.

Constant Value: 1 (0x00000001)

AUDIO_SESSION_ID_GENERATE

public static final int AUDIO_SESSION_ID_GENERATE

A special audio session ID to indicate that the audio session ID isn't known and the framework should generate a new value. This can be used when building a new AudioTrack instance with AudioTrack.AudioTrack(AudioAttributes, AudioFormat, int, int, int).

Constant Value: 0 (0x00000000)

DIRECT_PLAYBACK_BITSTREAM_SUPPORTED

public static final int DIRECT_PLAYBACK_BITSTREAM_SUPPORTED

Return value for getDirectPlaybackSupport(android.media.AudioFormat, android.media.AudioAttributes): direct playback supported. This value covers direct playback that is bitstream pass-through such as compressed pass-through.

Constant Value: 4 (0x00000004)

DIRECT_PLAYBACK_NOT_SUPPORTED

public static final int DIRECT_PLAYBACK_NOT_SUPPORTED

Return value for getDirectPlaybackSupport(android.media.AudioFormat, android.media.AudioAttributes): direct playback not supported.

Constant Value: 0 (0x00000000)

DIRECT_PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED

public static final int DIRECT_PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED

Return value for getDirectPlaybackSupport(android.media.AudioFormat, android.media.AudioAttributes): direct offload playback supported with gapless transitions. Compressed offload is a variant of direct playback. It is the feature that allows audio processing tasks to be done on the Android device but not on the application processor, instead, it is handled by dedicated hardware such as audio DSPs. That will allow the application processor to be idle as much as possible, which is good for power saving. Compressed offload playback supports AudioTrack.StreamEventCallback for event notifications. Gapless transitions indicates the ability to play consecutive audio tracks without an audio silence in between.

Constant Value: 3 (0x00000003)

DIRECT_PLAYBACK_OFFLOAD_SUPPORTED

public static final int DIRECT_PLAYBACK_OFFLOAD_SUPPORTED

Return value for getDirectPlaybackSupport(android.media.AudioFormat, android.media.AudioAttributes): direct offload playback supported. Compressed offload is a variant of direct playback. It is the feature that allows audio processing tasks to be done on the Android device but not on the application processor, instead, it is handled by dedicated hardware such as audio DSPs. That will allow the application processor to be idle as much as possible, which is good for power saving. Compressed offload playback supports AudioTrack.StreamEventCallback for event notifications.

Constant Value: 1 (0x00000001)

ENCODED_SURROUND_OUTPUT_ALWAYS

public static final int ENCODED_SURROUND_OUTPUT_ALWAYS

The surround sound formats are ALWAYS available, even if they are not detected by the hardware. Those formats will be reported as part of the HDMI output capability. Applications are then free to use either PCM or encoded output.

Constant Value: 2 (0x00000002)

ENCODED_SURROUND_OUTPUT_AUTO

public static final int ENCODED_SURROUND_OUTPUT_AUTO

The surround sound formats are available for use if they are detected. This is the default mode.

Constant Value: 0 (0x00000000)

ENCODED_SURROUND_OUTPUT_MANUAL

public static final int ENCODED_SURROUND_OUTPUT_MANUAL

Surround sound formats are available according to the choice of user, even if they are not detected by the hardware. Those formats will be reported as part of the HDMI output capability. Applications are then free to use either PCM or encoded output.

Constant Value: 3 (0x00000003)

ENCODED_SURROUND_OUTPUT_NEVER

public static final int ENCODED_SURROUND_OUTPUT_NEVER

The surround sound formats are NEVER available, even if they are detected by the hardware. Those formats will not be reported.

Constant Value: 1 (0x00000001)

ENCODED_SURROUND_OUTPUT_UNKNOWN

public static final int ENCODED_SURROUND_OUTPUT_UNKNOWN

The mode for surround sound formats is unknown.

Constant Value: -1 (0xffffffff)

ERROR

public static final int ERROR

A default error code.

Constant Value: -1 (0xffffffff)

ERROR_DEAD_OBJECT

public static final int ERROR_DEAD_OBJECT

An error code indicating that the object reporting it is no longer valid and needs to be recreated.

Constant Value: -6 (0xfffffffa)

EXTRA_AUDIO_PLUG_STATE

public static final String EXTRA_AUDIO_PLUG_STATE

Extra used in ACTION_HDMI_AUDIO_PLUG to communicate whether HDMI is plugged in or unplugged. An integer value of 1 indicates a plugged-in state, 0 is unplugged.

Constant Value: "android.media.extra.AUDIO_PLUG_STATE"

EXTRA_ENCODINGS

public static final String EXTRA_ENCODINGS

Extra used in ACTION_HDMI_AUDIO_PLUG to define the audio encodings supported by the connected HDMI device. The corresponding array of encoding values is only available when the device is plugged in (as expressed by EXTRA_AUDIO_PLUG_STATE). Encoding values are defined in AudioFormat (for instance see AudioFormat.ENCODING_PCM_16BIT). Use Intent.getIntArrayExtra(String) to retrieve the encoding values.

Constant Value: "android.media.extra.ENCODINGS"

EXTRA_MAX_CHANNEL_COUNT

public static final String EXTRA_MAX_CHANNEL_COUNT

Extra used in ACTION_HDMI_AUDIO_PLUG to define the maximum number of channels supported by the HDMI device. The corresponding integer value is only available when the device is plugged in (as expressed by EXTRA_AUDIO_PLUG_STATE).

Constant Value: "android.media.extra.MAX_CHANNEL_COUNT"

EXTRA_RINGER_MODE

public static final String EXTRA_RINGER_MODE

The new ringer mode.

Constant Value: "android.media.EXTRA_RINGER_MODE"

EXTRA_SCO_AUDIO_PREVIOUS_STATE

public static final String EXTRA_SCO_AUDIO_PREVIOUS_STATE

Extra for intent ACTION_SCO_AUDIO_STATE_UPDATED containing the previous bluetooth SCO connection state.

Constant Value: "android.media.extra.SCO_AUDIO_PREVIOUS_STATE"

EXTRA_SCO_AUDIO_STATE

public static final String EXTRA_SCO_AUDIO_STATE

Extra for intent ACTION_SCO_AUDIO_STATE_CHANGED or ACTION_SCO_AUDIO_STATE_UPDATED containing the new bluetooth SCO connection state.

Constant Value: "android.media.extra.SCO_AUDIO_STATE"

EXTRA_VIBRATE_SETTING

public static final String EXTRA_VIBRATE_SETTING

This constant was deprecated in API level 16.
Applications should maintain their own vibrate policy based on current ringer mode and listen to RINGER_MODE_CHANGED_ACTION instead.

The new vibrate setting for a particular type.

Constant Value: "android.media.EXTRA_VIBRATE_SETTING"

EXTRA_VIBRATE_TYPE

public static final String EXTRA_VIBRATE_TYPE

This constant was deprecated in API level 16.
Applications should maintain their own vibrate policy based on current ringer mode and listen to RINGER_MODE_CHANGED_ACTION instead.

The vibrate type whose setting has changed.

Constant Value: "android.media.EXTRA_VIBRATE_TYPE"

FLAG_ALLOW_RINGER_MODES

public static final int FLAG_ALLOW_RINGER_MODES

Whether to include ringer modes as possible options when changing volume. For example, if true and volume level is 0 and the volume is adjusted with ADJUST_LOWER, then the ringer mode may switch the silent or vibrate mode.

By default this is on for the ring stream. If this flag is included, this behavior will be present regardless of the stream type being affected by the ringer mode.

Constant Value: 2 (0x00000002)

FLAG_PLAY_SOUND

public static final int FLAG_PLAY_SOUND

Whether to play a sound when changing the volume.

If this is given to adjustVolume(int, int) or adjustSuggestedStreamVolume(int, int, int), it may be ignored in some cases (for example, the decided stream type is not AudioManager.STREAM_RING, or the volume is being adjusted downward).

Constant Value: 4 (0x00000004)

FLAG_REMOVE_SOUND_AND_VIBRATE

public static final int FLAG_REMOVE_SOUND_AND_VIBRATE

Removes any sounds/vibrate that may be in the queue, or are playing (related to changing volume).

Constant Value: 8 (0x00000008)

FLAG_SHOW_UI

public static final int FLAG_SHOW_UI

Show a toast containing the current volume.

Constant Value: 1 (0x00000001)

FLAG_VIBRATE

public static final int FLAG_VIBRATE

Whether to vibrate if going into the vibrate ringer mode.

Constant Value: 16 (0x00000010)

FX_BACK

public static final int FX_BACK

Back sound

Constant Value: 10 (0x0000000a)

FX_FOCUS_NAVIGATION_DOWN

public static final int FX_FOCUS_NAVIGATION_DOWN

Focus has moved down

Constant Value: 2 (0x00000002)

FX_FOCUS_NAVIGATION_LEFT

public static final int FX_FOCUS_NAVIGATION_LEFT

Focus has moved left

Constant Value: 3 (0x00000003)

FX_FOCUS_NAVIGATION_RIGHT

public static final int FX_FOCUS_NAVIGATION_RIGHT

Focus has moved right

Constant Value: 4 (0x00000004)

FX_FOCUS_NAVIGATION_UP

public static final int FX_FOCUS_NAVIGATION_UP

Focus has moved up

Constant Value: 1 (0x00000001)

FX_KEYPRESS_DELETE

public static final int FX_KEYPRESS_DELETE

IME delete keypress sound

Constant Value: 7 (0x00000007)

FX_KEYPRESS_INVALID

public static final int FX_KEYPRESS_INVALID

Invalid keypress sound

Constant Value: 9 (0x00000009)

FX_KEYPRESS_RETURN

public static final int FX_KEYPRESS_RETURN

IME return_keypress sound

Constant Value: 8 (0x00000008)

FX_KEYPRESS_SPACEBAR

public static final int FX_KEYPRESS_SPACEBAR

IME spacebar keypress sound

Constant Value: 6 (0x00000006)

FX_KEYPRESS_STANDARD

public static final int FX_KEYPRESS_STANDARD

IME standard keypress sound

Constant Value: 5 (0x00000005)

FX_KEY_CLICK

public static final int FX_KEY_CLICK

Keyboard and direction pad click sound

Constant Value: 0 (0x00000000)

GET_DEVICES_ALL

public static final int GET_DEVICES_ALL

Specifies to the AudioManager.getDevices(int) method to include both source and sink devices.

Constant Value: 3 (0x00000003)

GET_DEVICES_INPUTS

public static final int GET_DEVICES_INPUTS

Specifies to the AudioManager.getDevices(int) method to include source (i.e. input) audio devices.

Constant Value: 1 (0x00000001)

GET_DEVICES_OUTPUTS

public static final int GET_DEVICES_OUTPUTS

Specifies to the AudioManager.getDevices(int) method to include sink (i.e. output) audio devices.

Constant Value: 2 (0x00000002)

MODE_CALL_REDIRECT

public static final int MODE_CALL_REDIRECT

A telephony call is established and its audio is being redirected to another device.

Constant Value: 5 (0x00000005)

MODE_CALL_SCREENING

public static final int MODE_CALL_SCREENING

Call screening in progress. Call is connected and audio is accessible to call screening applications but other audio use cases are still possible.

Constant Value: 4 (0x00000004)

MODE_COMMUNICATION_REDIRECT

public static final int MODE_COMMUNICATION_REDIRECT

An audio/video chat or VoIP call is established and its audio is being redirected to another device.

Constant Value: 6 (0x00000006)

MODE_CURRENT

public static final int MODE_CURRENT

Current audio mode. Used to apply audio routing to current mode.

Constant Value: -1 (0xffffffff)

MODE_INVALID

public static final int MODE_INVALID

Invalid audio mode.

Constant Value: -2 (0xfffffffe)

MODE_IN_CALL

public static final int MODE_IN_CALL

In call audio mode. A telephony call is established.

Constant Value: 2 (0x00000002)

MODE_IN_COMMUNICATION

public static final int MODE_IN_COMMUNICATION

In communication audio mode. An audio/video chat or VoIP call is established.

Constant Value: 3 (0x00000003)

MODE_NORMAL

public static final int MODE_NORMAL

Normal audio mode: not ringing and no call established.

Constant Value: 0 (0x00000000)

MODE_RINGTONE

public static final int MODE_RINGTONE

Ringing audio mode. An incoming is being signaled.

Constant Value: 1 (0x00000001)

NUM_STREAMS

public static final int NUM_STREAMS

This constant was deprecated in API level 15.
Do not iterate on volume stream type values.

Constant Value: 5 (0x00000005)

PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED

public static final int PLAYBACK_OFFLOAD_GAPLESS_SUPPORTED

Return value for getPlaybackOffloadSupport(android.media.AudioFormat, android.media.AudioAttributes): offload playback supported with gapless transitions

Constant Value: 2 (0x00000002)

PLAYBACK_OFFLOAD_NOT_SUPPORTED

public static final int PLAYBACK_OFFLOAD_NOT_SUPPORTED

Return value for getPlaybackOffloadSupport(android.media.AudioFormat, android.media.AudioAttributes): offload playback not supported

Constant Value: 0 (0x00000000)

PLAYBACK_OFFLOAD_SUPPORTED

public static final int PLAYBACK_OFFLOAD_SUPPORTED

Return value for getPlaybackOffloadSupport(android.media.AudioFormat, android.media.AudioAttributes): offload playback supported

Constant Value: 1 (0x00000001)

PROPERTY_OUTPUT_FRAMES_PER_BUFFER

public static final String PROPERTY_OUTPUT_FRAMES_PER_BUFFER

Used as a key for getProperty(String) to request the native or optimal output buffer size for this device's low latency output stream, in decimal PCM frames. Latency-sensitive apps should use this value as a minimum, and offer the user the option to override it. The low latency output stream is typically either the device's primary output stream, or another output stream with smaller buffers.

Constant Value: "android.media.property.OUTPUT_FRAMES_PER_BUFFER"

PROPERTY_OUTPUT_SAMPLE_RATE

public static final String PROPERTY_OUTPUT_SAMPLE_RATE

Used as a key for getProperty(String) to request the native or optimal output sample rate for this device's low latency output stream, in decimal Hz. Latency-sensitive apps should use this value as a default, and offer the user the option to override it. The low latency output stream is typically either the device's primary output stream, or another output stream with smaller buffers.

Constant Value: "android.media.property.OUTPUT_SAMPLE_RATE"

PROPERTY_SUPPORT_AUDIO_SOURCE_UNPROCESSED

public static final String PROPERTY_SUPPORT_AUDIO_SOURCE_UNPROCESSED

Used as a key for getProperty(String) to determine if the unprocessed audio source is available and supported with the expected frequency range and level response.

Constant Value: "android.media.property.SUPPORT_AUDIO_SOURCE_UNPROCESSED"

PROPERTY_SUPPORT_MIC_NEAR_ULTRASOUND

public static final String PROPERTY_SUPPORT_MIC_NEAR_ULTRASOUND

Used as a key for getProperty(String) to determine if the default microphone audio source supports near-ultrasound frequencies (range of 18 - 21 kHz).

Constant Value: "android.media.property.SUPPORT_MIC_NEAR_ULTRASOUND"

PROPERTY_SUPPORT_SPEAKER_NEAR_ULTRASOUND

public static final String PROPERTY_SUPPORT_SPEAKER_NEAR_ULTRASOUND

Used as a key for getProperty(String) to determine if the default speaker audio path supports near-ultrasound frequencies (range of 18 - 21 kHz).

Constant Value: "android.media.property.SUPPORT_SPEAKER_NEAR_ULTRASOUND"

RINGER_MODE_CHANGED_ACTION

public static final String RINGER_MODE_CHANGED_ACTION

Sticky broadcast intent action indicating that the ringer mode has changed. Includes the new ringer mode.

Constant Value: "android.media.RINGER_MODE_CHANGED"

RINGER_MODE_NORMAL

public static final int RINGER_MODE_NORMAL

Ringer mode that may be audible and may vibrate. It will be audible if the volume before changing out of this mode was audible. It will vibrate if the vibrate setting is on.

Constant Value: 2 (0x00000002)

RINGER_MODE_SILENT

public static final int RINGER_MODE_SILENT

Ringer mode that will be silent and will not vibrate. (This overrides the vibrate setting.)

Constant Value: 0 (0x00000000)

RINGER_MODE_VIBRATE

public static final int RINGER_MODE_VIBRATE

Ringer mode that will be silent and will vibrate. (This will cause the phone ringer to always vibrate, but the notification vibrate to only vibrate if set.)

Constant Value: 1 (0x00000001)

ROUTE_ALL

public static final int ROUTE_ALL

This constant was deprecated in API level 15.
Do not set audio routing directly, use setSpeakerphoneOn(), setBluetoothScoOn() methods instead.

Used for mask parameter of setRouting(int, int, int).

Constant Value: -1 (0xffffffff)

ROUTE_BLUETOOTH

public static final int ROUTE_BLUETOOTH

This constant was deprecated in API level 15.
use ROUTE_BLUETOOTH_SCODo not set audio routing directly, use setSpeakerphoneOn(), setBluetoothScoOn() methods instead.

Constant Value: 4 (0x00000004)

ROUTE_BLUETOOTH_A2DP

public static final int ROUTE_BLUETOOTH_A2DP

This constant was deprecated in API level 15.
Do not set audio routing directly, use setSpeakerphoneOn(), setBluetoothScoOn() methods instead.

Routing audio output to bluetooth A2DP

Constant Value: 16 (0x00000010)

ROUTE_BLUETOOTH_SCO

public static final int ROUTE_BLUETOOTH_SCO

This constant was deprecated in API level 15.
Do not set audio routing directly, use setSpeakerphoneOn(), setBluetoothScoOn() methods instead.

Routing audio output to bluetooth SCO

Constant Value: 4 (0x00000004)

ROUTE_EARPIECE

public static final int ROUTE_EARPIECE

This constant was deprecated in API level 15.
Do not set audio routing directly, use setSpeakerphoneOn(), setBluetoothScoOn() methods instead.

Routing audio output to earpiece

Constant Value: 1 (0x00000001)

ROUTE_HEADSET

public static final int ROUTE_HEADSET

This constant was deprecated in API level 15.
Do not set audio routing directly, use setSpeakerphoneOn(), setBluetoothScoOn() methods instead.

Routing audio output to headset

Constant Value: 8 (0x00000008)

ROUTE_SPEAKER

public static final int ROUTE_SPEAKER

This constant was deprecated in API level 15.
Do not set audio routing directly, use setSpeakerphoneOn(), setBluetoothScoOn() methods instead.

Routing audio output to speaker

Constant Value: 2 (0x00000002)

SCO_AUDIO_STATE_CONNECTED

public static final int SCO_AUDIO_STATE_CONNECTED

Value for extra EXTRA_SCO_AUDIO_STATE or EXTRA_SCO_AUDIO_PREVIOUS_STATE indicating that the SCO audio channel is established

Constant Value: 1 (0x00000001)

SCO_AUDIO_STATE_CONNECTING

public static final int SCO_AUDIO_STATE_CONNECTING

Value for extra EXTRA_SCO_AUDIO_STATE or EXTRA_SCO_AUDIO_PREVIOUS_STATE indicating that the SCO audio channel is being established

Constant Value: 2 (0x00000002)

SCO_AUDIO_STATE_DISCONNECTED

public static final int SCO_AUDIO_STATE_DISCONNECTED

Value for extra EXTRA_SCO_AUDIO_STATE or EXTRA_SCO_AUDIO_PREVIOUS_STATE indicating that the SCO audio channel is not established

Constant Value: 0 (0x00000000)

SCO_AUDIO_STATE_ERROR

public static final int SCO_AUDIO_STATE_ERROR

Value for extra EXTRA_SCO_AUDIO_STATE indicating that there was an error trying to obtain the state

Constant Value: -1 (0xffffffff)

STREAM_ACCESSIBILITY

public static final int STREAM_ACCESSIBILITY

Used to identify the volume of audio streams for accessibility prompts

Constant Value: 10 (0x0000000a)

STREAM_ALARM

public static final int STREAM_ALARM

Used to identify the volume of audio streams for alarms

Constant Value: 4 (0x00000004)

STREAM_DTMF

public static final int STREAM_DTMF

Used to identify the volume of audio streams for DTMF Tones

Constant Value: 8 (0x00000008)

STREAM_MUSIC

public static final int STREAM_MUSIC

Used to identify the volume of audio streams for music playback

Constant Value: 3 (0x00000003)

STREAM_NOTIFICATION

public static final int STREAM_NOTIFICATION

Used to identify the volume of audio streams for notifications

Constant Value: 5 (0x00000005)

STREAM_RING

public static final int STREAM_RING

Used to identify the volume of audio streams for the phone ring

Constant Value: 2 (0x00000002)

STREAM_SYSTEM

public static final int STREAM_SYSTEM

Used to identify the volume of audio streams for system sounds

Constant Value: 1 (0x00000001)

STREAM_VOICE_CALL

public static final int STREAM_VOICE_CALL

Used to identify the volume of audio streams for phone calls

Constant Value: 0 (0x00000000)

USE_DEFAULT_STREAM_TYPE

public static final int USE_DEFAULT_STREAM_TYPE

Suggests using the default stream type. This may not be used in all places a stream type is needed.

Constant Value: -2147483648 (0x80000000)

VIBRATE_SETTING_CHANGED_ACTION

public static final String VIBRATE_SETTING_CHANGED_ACTION

This constant was deprecated in API level 16.
Applications should maintain their own vibrate policy based on current ringer mode and listen to RINGER_MODE_CHANGED_ACTION instead.

Broadcast intent action indicating that the vibrate setting has changed. Includes the vibrate type and its new setting.

Constant Value: "android.media.VIBRATE_SETTING_CHANGED"

VIBRATE_SETTING_OFF

public static final int VIBRATE_SETTING_OFF

This constant was deprecated in API level 16.
Applications should maintain their own vibrate policy based on current ringer mode that can be queried via getRingerMode().

Vibrate setting that suggests to never vibrate.

Constant Value: 0 (0x00000000)

VIBRATE_SETTING_ON

public static final int VIBRATE_SETTING_ON

This constant was deprecated in API level 16.
Applications should maintain their own vibrate policy based on current ringer mode that can be queried via getRingerMode().

Vibrate setting that suggests to vibrate when possible.

Constant Value: 1 (0x00000001)

VIBRATE_SETTING_ONLY_SILENT

public static final int VIBRATE_SETTING_ONLY_SILENT

This constant was deprecated in API level 16.
Applications should maintain their own vibrate policy based on current ringer mode that can be queried via getRingerMode().

Vibrate setting that suggests to only vibrate when in the vibrate ringer mode.

Constant Value: 2 (0x00000002)

VIBRATE_TYPE_NOTIFICATION

public static final int VIBRATE_TYPE_NOTIFICATION

This constant was deprecated in API level 16.
Applications should maintain their own vibrate policy based on current ringer mode that can be queried via getRingerMode().

Vibrate type that corresponds to notifications.

Constant Value: 1 (0x00000001)

VIBRATE_TYPE_RINGER

public static final int VIBRATE_TYPE_RINGER

This constant was deprecated in API level 16.
Applications should maintain their own vibrate policy based on current ringer mode that can be queried via getRingerMode().

Vibrate type that corresponds to the ringer.

Constant Value: 0 (0x00000000)

abandonAudioFocus

public int abandonAudioFocus (AudioManager.OnAudioFocusChangeListener l)

This method was deprecated in API level 26.
use abandonAudioFocusRequest(android.media.AudioFocusRequest)

Abandon audio focus. Causes the previous focus owner, if any, to receive focus.

abandonAudioFocusRequest

public int abandonAudioFocusRequest (AudioFocusRequest focusRequest)

Abandon audio focus. Causes the previous focus owner, if any, to receive focus.

addOnCommunicationDeviceChangedListener

public void addOnCommunicationDeviceChangedListener (Executor executor, 
                AudioManager.OnCommunicationDeviceChangedListener listener)

Adds a listener for being notified of changes to the communication audio device. See setCommunicationDevice(android.media.AudioDeviceInfo).

addOnModeChangedListener

public void addOnModeChangedListener (Executor executor, 
                AudioManager.OnModeChangedListener listener)

Adds a listener to be notified of changes to the audio mode. See getMode()

addOnPreferredMixerAttributesChangedListener

public void addOnPreferredMixerAttributesChangedListener (Executor executor, 
                AudioManager.OnPreferredMixerAttributesChangedListener listener)

Adds a listener for being notified of changes to the preferred mixer attributes.

adjustStreamVolume

public void adjustStreamVolume (int streamType, 
                int direction, 
                int flags)

Adjusts the volume of a particular stream by one step in a direction.

This method should only be used by applications that replace the platform-wide management of audio settings or the main telephony application.

This method has no effect if the device implements a fixed volume policy as indicated by isVolumeFixed().

From N onward, ringer mode adjustments that would toggle Do Not Disturb are not allowed unless the app has been granted Notification Policy Access. See NotificationManager.isNotificationPolicyAccessGranted().

adjustSuggestedStreamVolume

public void adjustSuggestedStreamVolume (int direction, 
                int suggestedStreamType, 
                int flags)

Adjusts the volume of the most relevant stream, or the given fallback stream.

This method should only be used by applications that replace the platform-wide management of audio settings or the main telephony application.

This method has no effect if the device implements a fixed volume policy as indicated by isVolumeFixed().

adjustVolume

public void adjustVolume (int direction, 
                int flags)

Adjusts the volume of the most relevant stream. For example, if a call is active, it will have the highest priority regardless of if the in-call screen is showing. Another example, if music is playing in the background and a call is not active, the music stream will be adjusted.

This method should only be used by applications that replace the platform-wide management of audio settings or the main telephony application.

This method has no effect if the device implements a fixed volume policy as indicated by isVolumeFixed().

adjustVolumeGroupVolume

public void adjustVolumeGroupVolume (int groupId, 
                int direction, 
                int flags)

Adjusts the volume of a particular group associated to given id by one step in a direction.

If the volume group is associated to a stream type, it fallbacks on adjustStreamVolume(int, int, int) for compatibility reason.

Call first in prior getVolumeGroupIdForAttributes(android.media.AudioAttributes) to retrieve the volume group id supporting the given AudioAttributes.

clearCommunicationDevice

public void clearCommunicationDevice ()

Cancels previous communication device selection made with setCommunicationDevice(android.media.AudioDeviceInfo).

clearPreferredMixerAttributes

public boolean clearPreferredMixerAttributes (AudioAttributes attributes, 
                AudioDeviceInfo device)

Clears the current preferred mixer attributes that were previously set via setPreferredMixerAttributes(android.media.AudioAttributes, android.media.AudioDeviceInfo, android.media.AudioMixerAttributes)
Requires Manifest.permission.MODIFY_AUDIO_SETTINGS

dispatchMediaKeyEvent

public void dispatchMediaKeyEvent (KeyEvent keyEvent)

Sends a simulated key event for a media button. To simulate a key press, you must first send a KeyEvent built with a KeyEvent.ACTION_DOWN action, then another event with the KeyEvent.ACTION_UP action.

The key event will be sent to the current media key event consumer which registered with AudioManager.registerMediaButtonEventReceiver(PendingIntent).

generateAudioSessionId

public int generateAudioSessionId ()

Return a new audio session identifier not associated with any player or effect. An audio session identifier is a system wide unique identifier for a set of audio streams (one or more mixed together).

The primary use of the audio session ID is to associate audio effects to audio players, such as MediaPlayer or AudioTrack: all audio effects sharing the same audio session ID will be applied to the mixed audio content of the players that share the same audio session.

This method can for instance be used when creating one of the AudioEffect objects to define the audio session of the effect, or to specify a session for a speech synthesis utterance in TextToSpeech.Engine.

getActivePlaybackConfigurations

public List<AudioPlaybackConfiguration> getActivePlaybackConfigurations ()

Returns the current active audio playback configurations of the device

getActiveRecordingConfigurations

public List<AudioRecordingConfiguration> getActiveRecordingConfigurations ()

Returns the current active audio recording configurations of the device.

getAllowedCapturePolicy

public int getAllowedCapturePolicy ()

Return the capture policy.

getAudioDevicesForAttributes

public List<AudioDeviceInfo> getAudioDevicesForAttributes (AudioAttributes attributes)

Get the audio devices that would be used for the routing of the given audio attributes. These are the devices anticipated to play sound from an AudioTrack created with the specified AudioAttributes. The audio routing can change if audio devices are physically connected or disconnected or concurrently through AudioRouting or MediaRouter.

getAudioHwSyncForSession

public int getAudioHwSyncForSession (int sessionId)

Retrieves the Hardware A/V synchronization ID corresponding to the given audio session ID. For more details on Hardware A/V synchronization please refer to media tunneling documentation.

getAvailableCommunicationDevices

public List<AudioDeviceInfo> getAvailableCommunicationDevices ()

Returns a list of audio devices that can be selected for communication use cases via setCommunicationDevice(android.media.AudioDeviceInfo).

getCommunicationDevice

public AudioDeviceInfo getCommunicationDevice ()

Returns currently selected audio device for communication.

This API replaces the following deprecated APIs:

• isBluetoothScoOn()
• isSpeakerphoneOn()

getDevices

public AudioDeviceInfo[] getDevices (int flags)

Returns an array of AudioDeviceInfo objects corresponding to the audio devices currently connected to the system and meeting the criteria specified in the flags parameter. Notes that Android audio framework only support one device per device type. In that case, if there are multiple audio device with the same device type connected to the Android device, only the last reported device will be known by Android audio framework and returned by this API.

getDirectPlaybackSupport

public static int getDirectPlaybackSupport (AudioFormat format, 
                AudioAttributes attributes)

Returns a bitfield representing the different forms of direct playback currently available for a given audio format.

Direct playback means that the audio stream is not altered by the framework. The audio stream will not be resampled, volume scaled, downmixed or mixed with other content by the framework. But it may be wrapped in a higher level protocol such as IEC61937 for passthrough.

Checking for direct support can help the app select the representation of audio content that most closely matches the capabilities of the device and peripherals (e.g. A/V receiver) connected to it. Note that the provided stream can still be re-encoded or mixed with other streams, if needed.

getDirectProfilesForAttributes

public List<AudioProfile> getDirectProfilesForAttributes (AudioAttributes attributes)

Returns a list of direct AudioProfile that are supported for the specified AudioAttributes. This can be empty in case of an error or if no direct playback is possible.

Direct playback means that the audio stream is not resampled or downmixed by the framework. Checking for direct support can help the app select the representation of audio content that most closely matches the capabilities of the device and peripherals (e.g. A/V receiver) connected to it. Note that the provided stream can still be re-encoded or mixed with other streams, if needed.

When using this information to inform your application which audio format to play, query again whenever audio output devices change (see AudioDeviceCallback).

getEncodedSurroundMode

public int getEncodedSurroundMode ()

Gets the surround sound mode.

getMicrophones

public List<MicrophoneInfo> getMicrophones ()

Returns a list of MicrophoneInfo that corresponds to the characteristics of all available microphones. The list is empty when no microphones are available on the device. An error during the query will result in an IOException being thrown.

getMode

public int getMode ()

Returns the current audio mode.

getParameters

public String getParameters (String keys)

Gets a variable number of parameter values from audio hardware.

getPlaybackOffloadSupport

public static int getPlaybackOffloadSupport (AudioFormat format, 
                AudioAttributes attributes)

This method was deprecated in API level 33.
Use getDirectPlaybackSupport(android.media.AudioFormat, android.media.AudioAttributes) instead

Returns whether offloaded playback of an audio format is supported on the device or not and when supported whether gapless transitions are possible or not.

Offloaded playback is the feature where the decoding and playback of an audio stream is not competing with other software resources. In general, it is supported by dedicated hardware, such as audio DSPs.

Note that this query only provides information about the support of an audio format, it does not indicate whether the resources necessary for the offloaded playback are available at that instant.

getPreferredMixerAttributes

public AudioMixerAttributes getPreferredMixerAttributes (AudioAttributes attributes, 
                AudioDeviceInfo device)

Returns current preferred mixer attributes that is set via setPreferredMixerAttributes(android.media.AudioAttributes, android.media.AudioDeviceInfo, android.media.AudioMixerAttributes)

getProperty

public String getProperty (String key)

Returns the value of the property with the specified key.

getRingerMode

public int getRingerMode ()

Returns the current ringtone mode.

getRouting

public int getRouting (int mode)

This method was deprecated in API level 15.
Do not query audio routing directly, use isSpeakerphoneOn(), isBluetoothScoOn(), isBluetoothA2dpOn() and isWiredHeadsetOn() methods instead.

Returns the current audio routing bit vector for a specified mode.

getSpatializer

public Spatializer getSpatializer ()

Return a handle to the optional platform's Spatializer

getStreamMaxVolume

public int getStreamMaxVolume (int streamType)

Returns the maximum volume index for a particular stream.

getStreamMinVolume

public int getStreamMinVolume (int streamType)

Returns the minimum volume index for a particular stream.

getStreamVolume

public int getStreamVolume (int streamType)

Returns the current volume index for a particular stream.

getStreamVolumeDb

public float getStreamVolumeDb (int streamType, 
                int index, 
                int deviceType)

Returns the volume in dB (decibel) for the given stream type at the given volume index, on the given type of audio output device.

getSupportedDeviceTypes

public Set<Integer> getSupportedDeviceTypes (int direction)

Returns a Set of unique Integers corresponding to audio device type identifiers that can potentially be connected to the system and meeting the criteria specified in the direction parameter. Note that this set contains AudioDeviceInfo device type identifiers for both devices currently available and those that can be available if the user connects an audio peripheral. Examples include TYPE_WIRED_HEADSET if the Android device supports an analog headset jack or TYPE_USB_DEVICE if the Android device supports a USB host-mode port. These are generally a superset of device type identifiers associated with the AudioDeviceInfo objects returned from AudioManager.getDevices().

getSupportedMixerAttributes

public List<AudioMixerAttributes> getSupportedMixerAttributes (AudioDeviceInfo device)

Returns the AudioMixerAttributes that can be used to set as preferred mixer attributes via setPreferredMixerAttributes(android.media.AudioAttributes, android.media.AudioDeviceInfo, android.media.AudioMixerAttributes).

Note that only USB devices are guaranteed to expose configurable mixer attributes. An empty list may be returned for all other types of devices as they may not allow dynamic configuration.

getVibrateSetting

public int getVibrateSetting (int vibrateType)

This method was deprecated in API level 16.
Applications should maintain their own vibrate policy based on current ringer mode that can be queried via getRingerMode().

Returns whether the user's vibrate setting for a vibrate type.

This shouldn't be needed by most clients that want to vibrate, instead see shouldVibrate(int).

getVolumeGroupIdForAttributes

public int getVolumeGroupIdForAttributes (AudioAttributes attributes)

Returns the volume group id associated to the given AudioAttributes.

isBluetoothA2dpOn

public boolean isBluetoothA2dpOn ()

This method was deprecated in API level 26.
Use AudioManager.getDevices(int) instead to list available audio devices.

Checks whether a Bluetooth A2DP audio peripheral is connected or not.

isBluetoothScoAvailableOffCall

public boolean isBluetoothScoAvailableOffCall ()

Indicates if current platform supports use of SCO for off call use cases. Application wanted to use bluetooth SCO audio when the phone is not in call must first call this method to make sure that the platform supports this feature.

isBluetoothScoOn

public boolean isBluetoothScoOn ()

This method was deprecated in API level 34.
Use AudioManager.getCommunicationDevice() instead.

Checks whether communications use Bluetooth SCO.

isCallScreeningModeSupported

public boolean isCallScreeningModeSupported ()

Indicates if the platform supports a special call screening and call monitoring mode.

When this mode is supported, it is possible to perform call screening and monitoring functions while other use cases like music or movie playback are active.

Use setMode(int) with mode MODE_CALL_SCREENING to place the platform in call screening mode.

If call screening mode is not supported, setting mode to MODE_CALL_SCREENING will be ignored and will not change current mode reported by getMode().

isHapticPlaybackSupported

public static boolean isHapticPlaybackSupported ()

Return if audio haptic coupled playback is supported or not.

isMicrophoneMute

public boolean isMicrophoneMute ()

Checks whether the microphone mute is on or off.

isMusicActive

public boolean isMusicActive ()

Checks whether any music is active.

isOffloadedPlaybackSupported

public static boolean isOffloadedPlaybackSupported (AudioFormat format, 
                AudioAttributes attributes)

Returns whether offloaded playback of an audio format is supported on the device.

Offloaded playback is the feature where the decoding and playback of an audio stream is not competing with other software resources. In general, it is supported by dedicated hardware, such as audio DSPs.

Note that this query only provides information about the support of an audio format, it does not indicate whether the resources necessary for the offloaded playback are available at that instant.

isRampingRingerEnabled

public boolean isRampingRingerEnabled ()

Returns the current user setting for ramping ringer on incoming phone call ringtone.

isSpeakerphoneOn

public boolean isSpeakerphoneOn ()

This method was deprecated in API level 34.
Use AudioManager.getCommunicationDevice() instead.

Checks whether the speakerphone is on or off.

isStreamMute

public boolean isStreamMute (int streamType)

Returns the current mute state for a particular stream.

isSurroundFormatEnabled

public boolean isSurroundFormatEnabled (int audioFormat)

Gets whether a certain surround format is enabled or not.

isVolumeFixed

public boolean isVolumeFixed ()

Indicates if the device implements a fixed volume policy.

Some devices may not have volume control and may operate at a fixed volume, and may not enable muting or changing the volume of audio streams. This method will return true on such devices.

The following APIs have no effect when volume is fixed:

• adjustVolume(int, int)
• adjustSuggestedStreamVolume(int, int, int)
• adjustStreamVolume(int, int, int)
• setStreamVolume(int, int, int)
• setRingerMode(int)
• setStreamSolo(int, boolean)
• setStreamMute(int, boolean)

isVolumeGroupMuted

public boolean isVolumeGroupMuted (int groupId)

Returns the current mute state for a particular volume group associated to the given id.

Call first in prior getVolumeGroupIdForAttributes(android.media.AudioAttributes) to retrieve the volume group id supporting the given AudioAttributes.

isWiredHeadsetOn

public boolean isWiredHeadsetOn ()

This method was deprecated in API level 15.
Use AudioManager.getDevices(int) instead to list available audio devices.

Checks whether a wired headset is connected or not.

This is not a valid indication that audio playback is actually over the wired headset as audio routing depends on other conditions.

loadSoundEffects

public void loadSoundEffects ()

Load Sound effects. This method must be called when sound effects are enabled.

playSoundEffect

public void playSoundEffect (int effectType)

Plays a sound effect (Key clicks, lid open/close...)

playSoundEffect

public void playSoundEffect (int effectType, 
                float volume)

Plays a sound effect (Key clicks, lid open/close...)

registerAudioDeviceCallback

public void registerAudioDeviceCallback (AudioDeviceCallback callback, 
                Handler handler)

Registers an AudioDeviceCallback object to receive notifications of changes to the set of connected audio devices.

registerAudioPlaybackCallback

public void registerAudioPlaybackCallback (AudioManager.AudioPlaybackCallback cb, 
                Handler handler)

Register a callback to be notified of audio playback changes through AudioPlaybackCallback

registerAudioRecordingCallback

public void registerAudioRecordingCallback (AudioManager.AudioRecordingCallback cb, 
                Handler handler)

Register a callback to be notified of audio recording changes through AudioRecordingCallback

registerMediaButtonEventReceiver

public void registerMediaButtonEventReceiver (ComponentName eventReceiver)

This method was deprecated in API level 21.
Use MediaSession.setMediaButtonReceiver(PendingIntent) instead.

Register a component to be the sole receiver of MEDIA_BUTTON intents.

registerMediaButtonEventReceiver

public void registerMediaButtonEventReceiver (PendingIntent eventReceiver)

This method was deprecated in API level 21.
Use MediaSession.setMediaButtonReceiver(PendingIntent) instead.

Register a component to be the sole receiver of MEDIA_BUTTON intents. This is like registerMediaButtonEventReceiver(android.content.ComponentName), but allows the buttons to go to any PendingIntent. Note that you should only use this form if you know you will continue running for the full time until unregistering the PendingIntent.

registerRemoteControlClient

public void registerRemoteControlClient (RemoteControlClient rcClient)

This method was deprecated in API level 21.
Use MediaSession instead.

Registers the remote control client for providing information to display on the remote controls.

registerRemoteController

public boolean registerRemoteController (RemoteController rctlr)

This method was deprecated in API level 21.
Use MediaSessionManager.addOnActiveSessionsChangedListener(android.media.session.MediaSessionManager.OnActiveSessionsChangedListener, ComponentName) and MediaController instead.

Registers a RemoteController instance for it to receive media metadata updates and playback state information from applications using RemoteControlClient, and control their playback.

Registration requires the RemoteController.OnClientUpdateListener listener to be one of the enabled notification listeners (see NotificationListenerService).

removeOnCommunicationDeviceChangedListener

public void removeOnCommunicationDeviceChangedListener (AudioManager.OnCommunicationDeviceChangedListener listener)

Removes a previously added listener of changes to the communication audio device. See setCommunicationDevice(android.media.AudioDeviceInfo).

removeOnModeChangedListener

public void removeOnModeChangedListener (AudioManager.OnModeChangedListener listener)

Removes a previously added listener for changes to audio mode. See getMode()

removeOnPreferredMixerAttributesChangedListener

public void removeOnPreferredMixerAttributesChangedListener (AudioManager.OnPreferredMixerAttributesChangedListener listener)

Removes a previously added listener of changes to the preferred mixer attributes.

requestAudioFocus

public int requestAudioFocus (AudioFocusRequest focusRequest)

Request audio focus. See the AudioFocusRequest for information about the options available to configure your request, and notification of focus gain and loss.

requestAudioFocus

public int requestAudioFocus (AudioManager.OnAudioFocusChangeListener l, 
                int streamType, 
                int durationHint)

This method was deprecated in API level 26.
use requestAudioFocus(android.media.AudioFocusRequest)

Request audio focus. Send a request to obtain the audio focus

setAllowedCapturePolicy

public void setAllowedCapturePolicy (int capturePolicy)

Specifies whether the audio played by this app may or may not be captured by other apps or the system. The default is AudioAttributes.ALLOW_CAPTURE_BY_ALL. There are multiple ways to set this policy:

• for each track independently, see AudioAttributes.Builder.setAllowedCapturePolicy(int)
• application-wide at runtime, with this method
• application-wide at build time, see allowAudioPlaybackCapture in the application manifest.

setBluetoothA2dpOn

public void setBluetoothA2dpOn (boolean on)

This method was deprecated in API level 15.
Use MediaRouter.selectRoute instead.

setBluetoothScoOn

public void setBluetoothScoOn (boolean on)

Request use of Bluetooth SCO headset for communications.

This method should only be used by applications that replace the platform-wide management of audio settings or the main telephony application.

setCommunicationDevice

public boolean setCommunicationDevice (AudioDeviceInfo device)

Selects the audio device that should be used for communication use cases, for instance voice or video calls. This method can be used by voice or video chat applications to select a different audio device than the one selected by default by the platform.

The device selection is expressed as an AudioDeviceInfo among devices returned by getAvailableCommunicationDevices(). Note that only devices in a sink role (AKA output devices, see AudioDeviceInfo.isSink()) can be specified. The matching source device is selected automatically by the platform.

The selection is active as long as the requesting application process lives, until clearCommunicationDevice() is called or until the device is disconnected. It is therefore important for applications to clear the request when a call ends or the the requesting activity or service is stopped or destroyed.

In case of simultaneous requests by multiple applications the priority is given to the application currently controlling the audio mode (see setMode(int)). This is the latest application having selected mode MODE_IN_COMMUNICATION or mode MODE_IN_CALL. Note that MODE_IN_CALL can only be selected by the main telephony application with permission Manifest.permission.MODIFY_PHONE_STATE.

If the requested devices is not currently available, the request will be rejected and the method will return false.

This API replaces the following deprecated APIs:

• startBluetoothSco()
• stopBluetoothSco()
• setSpeakerphoneOn(boolean)

Example

The example below shows how to enable and disable speakerphone mode.

 // Get an AudioManager instance
 AudioManager audioManager = Context.getSystemService(AudioManager.class);
 AudioDeviceInfo speakerDevice = null;
 List devices = audioManager.getAvailableCommunicationDevices();
 for (AudioDeviceInfo device : devices) {
     if (device.getType() == AudioDeviceInfo.TYPE_BUILTIN_SPEAKER) {
         speakerDevice = device;
         break;
     }
 }
 if (speakerDevice != null) {
     // Turn speakerphone ON.
     boolean result = audioManager.setCommunicationDevice(speakerDevice);
     if (!result) {
         // Handle error.
     }
     // Turn speakerphone OFF.
     audioManager.clearCommunicationDevice();
 }
 

setEncodedSurroundMode

public boolean setEncodedSurroundMode (int mode)

Sets the surround sound mode.
Requires Manifest.permission.WRITE_SETTINGS

setMicrophoneMute

public void setMicrophoneMute (boolean on)

Sets the microphone mute on or off.

This method should only be used by applications that replace the platform-wide management of audio settings or the main telephony application.

setMode

public void setMode (int mode)

Sets the audio mode.

The audio mode encompasses audio routing AND the behavior of the telephony layer. Therefore this method should only be used by applications that replace the platform-wide management of audio settings or the main telephony application. In particular, the MODE_IN_CALL mode should only be used by the telephony application when it places a phone call, as it will cause signals from the radio layer to feed the platform mixer.

setParameters

public void setParameters (String keyValuePairs)

Sets a variable number of parameter values to audio hardware.

setPreferredMixerAttributes

public boolean setPreferredMixerAttributes (AudioAttributes attributes, 
                AudioDeviceInfo device, 
                AudioMixerAttributes mixerAttributes)

Configures the mixer attributes for a particular AudioAttributes over a given AudioDeviceInfo.

Call getSupportedMixerAttributes(android.media.AudioDeviceInfo) to determine which mixer attributes can be used with the given device.

The ownership of preferred mixer attributes is recognized by uid. When a playback from the same uid is routed to the given audio device when calling this API, the output mixer/stream will be configured with the values previously set via this API.

Use clearPreferredMixerAttributes(android.media.AudioAttributes, android.media.AudioDeviceInfo) to cancel setting mixer attributes for this AudioAttributes.
Requires Manifest.permission.MODIFY_AUDIO_SETTINGS

setRingerMode

public void setRingerMode (int ringerMode)

Sets the ringer mode.

Silent mode will mute the volume and will not vibrate. Vibrate mode will mute the volume and vibrate. Normal mode will be audible and may vibrate according to user settings.

This method has no effect if the device implements a fixed volume policy as indicated by isVolumeFixed(). *

From N onward, ringer mode adjustments that would toggle Do Not Disturb are not allowed unless the app has been granted Notification Policy Access. See NotificationManager.isNotificationPolicyAccessGranted().

setRouting

public void setRouting (int mode, 
                int routes, 
                int mask)

This method was deprecated in API level 15.
Do not set audio routing directly, use setSpeakerphoneOn(), setBluetoothScoOn() methods instead.

Sets the audio routing for a specified mode

setSpeakerphoneOn

public void setSpeakerphoneOn (boolean on)

This method was deprecated in API level 34.
Use AudioManager.setCommunicationDevice(AudioDeviceInfo) or AudioManager.clearCommunicationDevice() instead.

Sets the speakerphone on or off.

This method should only be used by applications that replace the platform-wide management of audio settings or the main telephony application.

setStreamMute

public void setStreamMute (int streamType, 
                boolean state)

This method was deprecated in API level 23.
Use adjustStreamVolume(int, int, int) with ADJUST_MUTE or ADJUST_UNMUTE instead.

Mute or unmute an audio stream.

This method should only be used by applications that replace the platform-wide management of audio settings or the main telephony application.

This method has no effect if the device implements a fixed volume policy as indicated by isVolumeFixed().

This method was deprecated in API level 22. Prior to API level 22 this method had significantly different behavior and should be used carefully. The following applies only to pre-22 platforms:

• The mute command is protected against client process death: if a process with an active mute request on a stream dies, this stream will be unmuted automatically.
• The mute requests for a given stream are cumulative: the AudioManager can receive several mute requests from one or more clients and the stream will be unmuted only when the same number of unmute requests are received.
• For a better user experience, applications MUST unmute a muted stream in onPause() and mute is again in onResume() if appropriate.

setStreamSolo

public void setStreamSolo (int streamType, 
                boolean state)

This method was deprecated in API level 23.
Do not use. If you need exclusive audio playback use requestAudioFocus(AudioFocusRequest).

Solo or unsolo a particular stream.

Do not use. This method has been deprecated and is now a no-op. requestAudioFocus(AudioFocusRequest) should be used for exclusive audio playback.

setStreamVolume

public void setStreamVolume (int streamType, 
                int index, 
                int flags)

Sets the volume index for a particular stream.

This method has no effect if the device implements a fixed volume policy as indicated by isVolumeFixed().

From N onward, volume adjustments that would toggle Do Not Disturb are not allowed unless the app has been granted Notification Policy Access. See NotificationManager.isNotificationPolicyAccessGranted().

setSurroundFormatEnabled

public boolean setSurroundFormatEnabled (int audioFormat, 
                boolean enabled)

Sets and persists a certain surround format as enabled or not.

This API is called by TvSettings surround sound menu when user enables or disables a surround sound format. This setting is persisted as global user setting. Applications should revert their changes to surround sound settings unless they intend to modify the global user settings across all apps. The framework does not auto-revert an application's settings after a lifecycle event. Audio focus is not required to apply these settings.
Requires Manifest.permission.WRITE_SETTINGS

setVibrateSetting

public void setVibrateSetting (int vibrateType, 
                int vibrateSetting)

This method was deprecated in API level 16.
Applications should maintain their own vibrate policy based on current ringer mode that can be queried via getRingerMode().

Sets the setting for when the vibrate type should vibrate.

This method should only be used by applications that replace the platform-wide management of audio settings or the main telephony application.

setWiredHeadsetOn

public void setWiredHeadsetOn (boolean on)

This method was deprecated in API level 15.
Do not use.

Sets audio routing to the wired headset on or off.

shouldVibrate

public boolean shouldVibrate (int vibrateType)

This method was deprecated in API level 16.
Applications should maintain their own vibrate policy based on current ringer mode that can be queried via getRingerMode().

Returns whether a particular type should vibrate according to user settings and the current ringer mode.

This shouldn't be needed by most clients that use notifications to vibrate. The notification manager will not vibrate if the policy doesn't allow it, so the client should always set a vibrate pattern and let the notification manager control whether or not to actually vibrate.

startBluetoothSco

public void startBluetoothSco ()

This method was deprecated in API level 34.
Use AudioManager.setCommunicationDevice(AudioDeviceInfo) instead.

Start bluetooth SCO audio connection.

Requires Permission: Manifest.permission.MODIFY_AUDIO_SETTINGS.

This method can be used by applications wanting to send and received audio to/from a bluetooth SCO headset while the phone is not in call.

As the SCO connection establishment can take several seconds, applications should not rely on the connection to be available when the method returns but instead register to receive the intent ACTION_SCO_AUDIO_STATE_UPDATED and wait for the state to be SCO_AUDIO_STATE_CONNECTED.

As the ACTION_SCO_AUDIO_STATE_UPDATED intent is sticky, the application can check the SCO audio state before calling startBluetoothSco() by reading the intent returned by the receiver registration. If the state is already CONNECTED, no state change will be received via the intent after calling startBluetoothSco(). It is however useful to call startBluetoothSco() so that the connection stays active in case the current initiator stops the connection.

Unless the connection is already active as described above, the state will always transition from DISCONNECTED to CONNECTING and then either to CONNECTED if the connection succeeds or back to DISCONNECTED if the connection fails (e.g no headset is connected).

When finished with the SCO connection or if the establishment fails, the application must call stopBluetoothSco() to clear the request and turn down the bluetooth connection.

Even if a SCO connection is established, the following restrictions apply on audio output streams so that they can be routed to SCO headset:

• the stream type must be STREAM_VOICE_CALL
• the format must be mono
• the sampling must be 16kHz or 8kHz

The following restrictions apply on input streams:

• the format must be mono
• the sampling must be 8kHz

Note that the phone application always has the priority on the usage of the SCO connection for telephony. If this method is called while the phone is in call it will be ignored. Similarly, if a call is received or sent while an application is using the SCO connection, the connection will be lost for the application and NOT returned automatically when the call ends.

NOTE: up to and including API version Build.VERSION_CODES.JELLY_BEAN_MR1, this method initiates a virtual voice call to the bluetooth headset. After API version Build.VERSION_CODES.JELLY_BEAN_MR2 only a raw SCO audio connection is established.

stopBluetoothSco

public void stopBluetoothSco ()

This method was deprecated in API level 34.
Use AudioManager.clearCommunicationDevice() instead.

Stop bluetooth SCO audio connection.

Requires Permission: Manifest.permission.MODIFY_AUDIO_SETTINGS.

This method must be called by applications having requested the use of bluetooth SCO audio with startBluetoothSco() when finished with the SCO connection or if connection fails.

unloadSoundEffects

public void unloadSoundEffects ()

Unload Sound effects. This method can be called to free some memory when sound effects are disabled.

unregisterAudioDeviceCallback

public void unregisterAudioDeviceCallback (AudioDeviceCallback callback)

Unregisters an AudioDeviceCallback object which has been previously registered to receive notifications of changes to the set of connected audio devices.

unregisterAudioPlaybackCallback

public void unregisterAudioPlaybackCallback (AudioManager.AudioPlaybackCallback cb)

Unregister an audio playback callback previously registered with registerAudioPlaybackCallback(android.media.AudioManager.AudioPlaybackCallback, android.os.Handler).

unregisterAudioRecordingCallback

public void unregisterAudioRecordingCallback (AudioManager.AudioRecordingCallback cb)

Unregister an audio recording callback previously registered with registerAudioRecordingCallback(android.media.AudioManager.AudioRecordingCallback, android.os.Handler).

unregisterMediaButtonEventReceiver

public void unregisterMediaButtonEventReceiver (ComponentName eventReceiver)

This method was deprecated in API level 21.
Use MediaSession instead.

Unregister the receiver of MEDIA_BUTTON intents.

unregisterMediaButtonEventReceiver

public void unregisterMediaButtonEventReceiver (PendingIntent eventReceiver)

This method was deprecated in API level 21.
Use MediaSession instead.

Unregister the receiver of MEDIA_BUTTON intents.

unregisterRemoteControlClient

public void unregisterRemoteControlClient (RemoteControlClient rcClient)

This method was deprecated in API level 21.
Use MediaSession instead.

Unregisters the remote control client that was providing information to display on the remote controls.

unregisterRemoteController

public void unregisterRemoteController (RemoteController rctlr)

This method was deprecated in API level 21.
Use MediaSessionManager.removeOnActiveSessionsChangedListener(android.media.session.MediaSessionManager.OnActiveSessionsChangedListener) instead.

Unregisters a RemoteController, causing it to no longer receive media metadata and playback state information, and no longer be capable of controlling playback.