public class

AudioManager

extends Object
java.lang.Object
   ↳ android.media.AudioManager

Class Overview

AudioManager provides access to volume and ringer mode control.

Use Context.getSystemService(Context.AUDIO_SERVICE) to get an instance of this class.

Summary

Constants
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.
int ADJUST_LOWER Decrease the ringer volume.
int ADJUST_RAISE Increase the ringer volume.
int ADJUST_SAME Maintain the previous ringer volume.
String EXTRA_RINGER_MODE The new ringer mode.
String EXTRA_VIBRATE_SETTING The new vibrate setting for a particular type.
String EXTRA_VIBRATE_TYPE The vibrate type whose setting has changed.
int FLAG_ALLOW_RINGER_MODES Whether to include ringer modes as possible options when changing volume.
int FLAG_PLAY_SOUND Whether to play a sound when changing the volume.
int FLAG_REMOVE_SOUND_AND_VIBRATE Removes any sounds/vibrate that may be in the queue, or are playing (related to changing volume).
int FLAG_SHOW_UI Show a toast containing the current volume.
int FLAG_VIBRATE Whether to vibrate if going into the vibrate ringer mode.
int FX_FOCUS_NAVIGATION_DOWN Focus has moved down
int FX_FOCUS_NAVIGATION_LEFT Focus has moved left
int FX_FOCUS_NAVIGATION_RIGHT Focus has moved right
int FX_FOCUS_NAVIGATION_UP Focus has moved up
int FX_KEYPRESS_DELETE IME delete keypress sound
int FX_KEYPRESS_RETURN IME return_keypress sound
int FX_KEYPRESS_SPACEBAR IME spacebar keypress sound
int FX_KEYPRESS_STANDARD IME standard keypress sound
int FX_KEY_CLICK Keyboard and direction pad click sound
int MODE_CURRENT Current audio mode.
int MODE_INVALID Invalid audio mode.
int MODE_IN_CALL In call audio mode.
int MODE_NORMAL Normal audio mode: not ringing and no call established.
int MODE_RINGTONE Ringing audio mode.
int NUM_STREAMS This constant is deprecated. Use AudioSystem.getNumStreamTypes() instead
String RINGER_MODE_CHANGED_ACTION Sticky broadcast intent action indicating that the ringer mode has changed.
int RINGER_MODE_NORMAL Ringer mode that may be audible and may vibrate.
int RINGER_MODE_SILENT Ringer mode that will be silent and will not vibrate.
int RINGER_MODE_VIBRATE Ringer mode that will be silent and will vibrate.
int ROUTE_ALL Used for mask parameter of setRouting(int, int, int).
int ROUTE_BLUETOOTH This constant is deprecated. use ROUTE_BLUETOOTH_SCO
int ROUTE_BLUETOOTH_A2DP Routing audio output to bluetooth A2DP
int ROUTE_BLUETOOTH_SCO Routing audio output to bluetooth SCO
int ROUTE_EARPIECE Routing audio output to earpiece
int ROUTE_HEADSET Routing audio output to headset
int ROUTE_SPEAKER Routing audio output to spaker
int STREAM_ALARM The audio stream for alarms
int STREAM_MUSIC The audio stream for music playback
int STREAM_NOTIFICATION The audio stream for notifications
int STREAM_RING The audio stream for the phone ring
int STREAM_SYSTEM The audio stream for system sounds
int STREAM_VOICE_CALL The audio stream for phone calls
int USE_DEFAULT_STREAM_TYPE Suggests using the default stream type.
String VIBRATE_SETTING_CHANGED_ACTION Broadcast intent action indicating that the vibrate setting has changed.
int VIBRATE_SETTING_OFF Vibrate setting that suggests to never vibrate.
int VIBRATE_SETTING_ON Vibrate setting that suggests to vibrate when possible.
int VIBRATE_SETTING_ONLY_SILENT Vibrate setting that suggests to only vibrate when in the vibrate ringer mode.
int VIBRATE_TYPE_NOTIFICATION Vibrate type that corresponds to notifications.
int VIBRATE_TYPE_RINGER Vibrate type that corresponds to the ringer.
Public Methods
void adjustStreamVolume(int streamType, int direction, int flags)
Adjusts the volume of a particular stream by one step in a direction.
void adjustSuggestedStreamVolume(int direction, int suggestedStreamType, int flags)
Adjusts the volume of the most relevant stream, or the given fallback stream.
void adjustVolume(int direction, int flags)
Adjusts the volume of the most relevant stream.
int getMode()
Returns the current audio mode.
int getRingerMode()
Returns the current ringtone mode.
int getRouting(int mode)
Returns the current audio routing bit vector for a specified mode.
int getStreamMaxVolume(int streamType)
Returns the maximum volume index for a particular stream.
int getStreamVolume(int streamType)
Returns the current volume index for a particular stream.
int getVibrateSetting(int vibrateType)
Returns whether the user's vibrate setting for a vibrate type.
boolean isBluetoothA2dpOn()
Checks whether A2DP audio routing to the Bluetooth headset is on or off.
boolean isBluetoothScoOn()
Checks whether audio routing to the Bluetooth headset is on or off.
boolean isMicrophoneMute()
Checks whether the microphone mute is on or off.
boolean isMusicActive()
Checks whether any music is active.
boolean isSpeakerphoneOn()
Checks whether the speakerphone is on or off.
void loadSoundEffects()
Load Sound effects.
void playSoundEffect(int effectType, float volume)
Plays a sound effect (Key clicks, lid open/close...)
void playSoundEffect(int effectType)
Plays a sound effect (Key clicks, lid open/close...)
void setBluetoothA2dpOn(boolean on)
Sets A2DP audio routing to the Bluetooth headset on or off.
void setBluetoothScoOn(boolean on)
Sets audio routing to the Bluetooth headset on or off.
void setMicrophoneMute(boolean on)
Sets the microphone mute on or off.
void setMode(int mode)
Sets the audio mode.
void setRingerMode(int ringerMode)
Sets the ringer mode.
void setRouting(int mode, int routes, int mask)
Sets the audio routing for a specified mode
void setSpeakerphoneOn(boolean on)
Sets the speakerphone on or off.
void setStreamMute(int streamType, boolean state)
Mute or unmute an audio stream.
void setStreamSolo(int streamType, boolean state)
Solo or unsolo a particular stream.
void setStreamVolume(int streamType, int index, int flags)
Sets the volume index for a particular stream.
void setVibrateSetting(int vibrateType, int vibrateSetting)
Sets the setting for when the vibrate type should vibrate.
boolean shouldVibrate(int vibrateType)
Returns whether a particular type should vibrate according to user settings and the current ringer mode.
void unloadSoundEffects()
Unload Sound effects.
[Expand]
Inherited Methods
From class java.lang.Object

Constants

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"

public static final int ADJUST_LOWER

Decrease the ringer volume.

Constant Value: -1 (0xffffffff)

public static final int ADJUST_RAISE

Increase the ringer volume.

Constant Value: 1 (0x00000001)

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)

public static final String EXTRA_RINGER_MODE

The new ringer mode.

Constant Value: "android.media.EXTRA_RINGER_MODE"

public static final String EXTRA_VIBRATE_SETTING

The new vibrate setting for a particular type.

Constant Value: "android.media.EXTRA_VIBRATE_SETTING"

public static final String EXTRA_VIBRATE_TYPE

The vibrate type whose setting has changed.

Constant Value: "android.media.EXTRA_VIBRATE_TYPE"

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)

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 STREAM_RING, or the volume is being adjusted downward).

Constant Value: 4 (0x00000004)

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)

public static final int FLAG_SHOW_UI

Show a toast containing the current volume.

Constant Value: 1 (0x00000001)

public static final int FLAG_VIBRATE

Whether to vibrate if going into the vibrate ringer mode.

Constant Value: 16 (0x00000010)

public static final int FX_FOCUS_NAVIGATION_DOWN

Focus has moved down

Constant Value: 2 (0x00000002)

public static final int FX_FOCUS_NAVIGATION_LEFT

Focus has moved left

Constant Value: 3 (0x00000003)

public static final int FX_FOCUS_NAVIGATION_RIGHT

Focus has moved right

Constant Value: 4 (0x00000004)

public static final int FX_FOCUS_NAVIGATION_UP

Focus has moved up

Constant Value: 1 (0x00000001)

public static final int FX_KEYPRESS_DELETE

IME delete keypress sound

Constant Value: 7 (0x00000007)

public static final int FX_KEYPRESS_RETURN

IME return_keypress sound

Constant Value: 8 (0x00000008)

public static final int FX_KEYPRESS_SPACEBAR

IME spacebar keypress sound

Constant Value: 6 (0x00000006)

public static final int FX_KEYPRESS_STANDARD

IME standard keypress sound

Constant Value: 5 (0x00000005)

public static final int FX_KEY_CLICK

Keyboard and direction pad click sound

Constant Value: 0 (0x00000000)

public static final int MODE_CURRENT

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

Constant Value: -1 (0xffffffff)

public static final int MODE_INVALID

Invalid audio mode.

Constant Value: -2 (0xfffffffe)

public static final int MODE_IN_CALL

In call audio mode. A call is established.

Constant Value: 2 (0x00000002)

public static final int MODE_NORMAL

Normal audio mode: not ringing and no call established.

Constant Value: 0 (0x00000000)

public static final int MODE_RINGTONE

Ringing audio mode. An incoming is being signaled.

Constant Value: 1 (0x00000001)

public static final int NUM_STREAMS

This constant is deprecated.Use AudioSystem.getNumStreamTypes() instead

Constant Value: 5 (0x00000005)

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"

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)

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)

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)

public static final int ROUTE_ALL

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

Constant Value: -1 (0xffffffff)

public static final int ROUTE_BLUETOOTH

This constant is deprecated.use ROUTE_BLUETOOTH_SCO

Constant Value: 4 (0x00000004)

public static final int ROUTE_BLUETOOTH_A2DP

Routing audio output to bluetooth A2DP

Constant Value: 16 (0x00000010)

public static final int ROUTE_BLUETOOTH_SCO

Routing audio output to bluetooth SCO

Constant Value: 4 (0x00000004)

public static final int ROUTE_EARPIECE

Routing audio output to earpiece

Constant Value: 1 (0x00000001)

public static final int ROUTE_HEADSET

Routing audio output to headset

Constant Value: 8 (0x00000008)

public static final int ROUTE_SPEAKER

Routing audio output to spaker

Constant Value: 2 (0x00000002)

public static final int STREAM_ALARM

The audio stream for alarms

Constant Value: 4 (0x00000004)

public static final int STREAM_MUSIC

The audio stream for music playback

Constant Value: 3 (0x00000003)

public static final int STREAM_NOTIFICATION

The audio stream for notifications

Constant Value: 5 (0x00000005)

public static final int STREAM_RING

The audio stream for the phone ring

Constant Value: 2 (0x00000002)

public static final int STREAM_SYSTEM

The audio stream for system sounds

Constant Value: 1 (0x00000001)

public static final int STREAM_VOICE_CALL

The audio stream for phone calls

Constant Value: 0 (0x00000000)

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)

public static final String VIBRATE_SETTING_CHANGED_ACTION

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"

public static final int VIBRATE_SETTING_OFF

Vibrate setting that suggests to never vibrate.

Constant Value: 0 (0x00000000)

public static final int VIBRATE_SETTING_ON

Vibrate setting that suggests to vibrate when possible.

Constant Value: 1 (0x00000001)

public static final int VIBRATE_SETTING_ONLY_SILENT

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

Constant Value: 2 (0x00000002)

public static final int VIBRATE_TYPE_NOTIFICATION

Vibrate type that corresponds to notifications.

Constant Value: 1 (0x00000001)

public static final int VIBRATE_TYPE_RINGER

Vibrate type that corresponds to the ringer.

Constant Value: 0 (0x00000000)

Public Methods

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

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

Parameters
streamType The stream type to adjust. One of STREAM_VOICE_CALL, STREAM_SYSTEM, STREAM_RING, STREAM_MUSIC or STREAM_ALARM
direction The direction to adjust the volume. One of ADJUST_LOWER, ADJUST_RAISE, or ADJUST_SAME.
flags One or more flags.

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

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

Parameters
direction The direction to adjust the volume. One of ADJUST_LOWER, ADJUST_RAISE, or ADJUST_SAME.
suggestedStreamType The stream type that will be used if there isn't a relevant stream. USE_DEFAULT_STREAM_TYPE is valid here.
flags One or more flags.

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.

Parameters
direction The direction to adjust the volume. One of ADJUST_LOWER, ADJUST_RAISE, or ADJUST_SAME.
flags One or more flags.

public int getMode ()

Returns the current audio mode.

Returns
  • the current audio mode (NORMAL, RINGTONE, or IN_CALL). Returns the current current audio state from the HAL.

public int getRingerMode ()

Returns the current ringtone mode.

Returns

public int getRouting (int mode)

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

Parameters
mode audio mode to get route (e.g., MODE_RINGTONE)
Returns
  • an audio route bit vector that can be compared with ROUTE_xxx bits

public int getStreamMaxVolume (int streamType)

Returns the maximum volume index for a particular stream.

Parameters
streamType The stream type whose maximum volume index is returned.
Returns
  • The maximum valid volume index for the stream.

public int getStreamVolume (int streamType)

Returns the current volume index for a particular stream.

Parameters
streamType The stream type whose volume index is returned.
Returns
  • The current volume index for the stream.

public int getVibrateSetting (int vibrateType)

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).

Parameters
vibrateType The type of vibrate. One of VIBRATE_TYPE_NOTIFICATION or VIBRATE_TYPE_RINGER.
Returns

public boolean isBluetoothA2dpOn ()

Checks whether A2DP audio routing to the Bluetooth headset is on or off.

Returns
  • true if A2DP audio is being routed to/from Bluetooth headset; false if otherwise

public boolean isBluetoothScoOn ()

Checks whether audio routing to the Bluetooth headset is on or off.

Returns
  • true if SCO audio is being routed to/from Bluetooth headset; false if otherwise

public boolean isMicrophoneMute ()

Checks whether the microphone mute is on or off.

Returns
  • true if microphone is muted, false if it's not

public boolean isMusicActive ()

Checks whether any music is active.

Returns
  • true if any music tracks are active.

public boolean isSpeakerphoneOn ()

Checks whether the speakerphone is on or off.

Returns
  • true if speakerphone is on, false if it's off

public void loadSoundEffects ()

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

public void playSoundEffect (int effectType, float volume)

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

Parameters
effectType The type of sound effect. One of FX_KEY_CLICK, FX_FOCUS_NAVIGATION_UP, FX_FOCUS_NAVIGATION_DOWN, FX_FOCUS_NAVIGATION_LEFT, FX_FOCUS_NAVIGATION_RIGHT, FX_KEYPRESS_STANDARD, FX_KEYPRESS_SPACEBAR, FX_KEYPRESS_DELETE, FX_KEYPRESS_RETURN,
volume Sound effect volume NOTE: This version is for applications that have their own settings panel for enabling and controlling volume.

public void playSoundEffect (int effectType)

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

Parameters
effectType The type of sound effect. One of FX_KEY_CLICK, FX_FOCUS_NAVIGATION_UP, FX_FOCUS_NAVIGATION_DOWN, FX_FOCUS_NAVIGATION_LEFT, FX_FOCUS_NAVIGATION_RIGHT, FX_KEYPRESS_STANDARD, FX_KEYPRESS_SPACEBAR, FX_KEYPRESS_DELETE, FX_KEYPRESS_RETURN, NOTE: This version uses the UI settings to determine whether sounds are heard or not.

public void setBluetoothA2dpOn (boolean on)

Sets A2DP audio routing to the Bluetooth headset on or off.

Parameters
on set true to route A2DP audio to/from Bluetooth headset; false disable A2DP audio

public void setBluetoothScoOn (boolean on)

Sets audio routing to the Bluetooth headset on or off.

Parameters
on set true to route SCO (voice) audio to/from Bluetooth headset; false to route audio to/from phone earpiece

public void setMicrophoneMute (boolean on)

Sets the microphone mute on or off.

Parameters
on set true to mute the microphone; false to turn mute off

public void setMode (int mode)

Sets the audio mode.

Parameters
mode the requested audio mode (NORMAL, RINGTONE, or IN_CALL). Informs the HAL about the current audio state so that it can route the audio appropriately.

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.

Parameters
ringerMode The ringer mode, one of RINGER_MODE_NORMAL, RINGER_MODE_SILENT, or RINGER_MODE_VIBRATE.
See Also

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

Sets the audio routing for a specified mode

Parameters
mode audio mode to change route. E.g., MODE_RINGTONE.
routes bit vector of routes requested, created from one or more of ROUTE_xxx types. Set bits indicate that route should be on
mask bit vector of routes to change, created from one or more of ROUTE_xxx types. Unset bits indicate the route should be left unchanged

public void setSpeakerphoneOn (boolean on)

Sets the speakerphone on or off.

Parameters
on set true to turn on speakerphone; false to turn it off

public void setStreamMute (int streamType, boolean state)

Mute or unmute an audio stream.

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.

Parameters
streamType The stream to be muted/unmuted.
state The required mute state: true for mute ON, false for mute OFF

public void setStreamSolo (int streamType, boolean state)

Solo or unsolo a particular stream. All other streams are muted.

The solo command is protected against client process death: if a process with an active solo request on a stream dies, all streams that were muted because of this request will be unmuted automatically.

The solo requests for a given stream are cumulative: the AudioManager can receive several solo requests from one or more clients and the stream will be unsoloed only when the same number of unsolo requests are received.

For a better user experience, applications MUST unsolo a soloed stream in onPause() and solo is again in onResume() if appropriate.

Parameters
streamType The stream to be soloed/unsoloed.
state The required solo state: true for solo ON, false for solo OFF

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

Sets the volume index for a particular stream.

Parameters
streamType The stream whose volume index should be set.
index The volume index to set. See getStreamMaxVolume(int) for the largest valid value.
flags One or more flags.

public void setVibrateSetting (int vibrateType, int vibrateSetting)

Sets the setting for when the vibrate type should vibrate.

Parameters
vibrateType The type of vibrate. One of VIBRATE_TYPE_NOTIFICATION or VIBRATE_TYPE_RINGER.
vibrateSetting The vibrate setting, one of VIBRATE_SETTING_ON, VIBRATE_SETTING_OFF, or VIBRATE_SETTING_ONLY_SILENT.

public boolean shouldVibrate (int vibrateType)

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.

Parameters
vibrateType The type of vibrate. One of VIBRATE_TYPE_NOTIFICATION or VIBRATE_TYPE_RINGER.
Returns
  • Whether the type should vibrate at the instant this method is called.

public void unloadSoundEffects ()

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