Example usage for android.media AudioManager AUDIOFOCUS

Introduction

In this page you can find the example usage for android.media AudioManager AUDIOFOCUS_GAIN.

Prototype

int AUDIOFOCUS_GAIN

To view the source code for android.media AudioManager AUDIOFOCUS_GAIN.

Click Source Link

Document

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

Usage

From source file:com.thejoshwa.ultrasonic.androidapp.util.Util.java

public static void requestAudioFocus(final Context context) {
    if (!hasFocus) {
        final AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
        hasFocus = true;//  w  w w .j  ava 2 s .co  m
        audioManager.requestAudioFocus(new OnAudioFocusChangeListener() {
            public void onAudioFocusChange(int focusChange) {
                DownloadServiceImpl downloadService = (DownloadServiceImpl) context;
                if ((focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT
                        || focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK)
                        && !downloadService.isJukeboxEnabled()) {
                    if (downloadService.getPlayerState() == PlayerState.STARTED) {
                        SharedPreferences prefs = getPreferences(context);
                        int lossPref = Integer
                                .parseInt(prefs.getString(Constants.PREFERENCES_KEY_TEMP_LOSS, "1"));
                        if (lossPref == 2 || (lossPref == 1
                                && focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK)) {
                            lowerFocus = true;
                            downloadService.setVolume(0.1f);
                        } else if (lossPref == 0
                                || (lossPref == 1 && focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT)) {
                            pauseFocus = true;
                            downloadService.pause();
                        }
                    }
                } else if (focusChange == AudioManager.AUDIOFOCUS_GAIN) {
                    if (pauseFocus) {
                        pauseFocus = false;
                        downloadService.start();
                    } else if (lowerFocus) {
                        lowerFocus = false;
                        downloadService.setVolume(1.0f);
                    }
                } else if (focusChange == AudioManager.AUDIOFOCUS_LOSS && !downloadService.isJukeboxEnabled()) {
                    hasFocus = false;
                    downloadService.pause();
                    audioManager.abandonAudioFocus(this);
                }
            }
        }, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN);
    }
}

From source file:github.daneren2005.dsub.util.Util.java

@TargetApi(8)
public static void requestAudioFocus(final Context context) {
    if (Build.VERSION.SDK_INT >= 8 && !hasFocus) {
        final AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
        hasFocus = true;/*from   w  w  w  . j  a  v  a 2 s  .co m*/
        audioManager.requestAudioFocus(new OnAudioFocusChangeListener() {
            public void onAudioFocusChange(int focusChange) {
                DownloadServiceImpl downloadService = (DownloadServiceImpl) context;
                if ((focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT
                        || focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK)
                        && !downloadService.isJukeboxEnabled()) {
                    if (downloadService.getPlayerState() == PlayerState.STARTED) {
                        SharedPreferences prefs = getPreferences(context);
                        int lossPref = Integer
                                .parseInt(prefs.getString(Constants.PREFERENCES_KEY_TEMP_LOSS, "1"));
                        if (lossPref == 2 || (lossPref == 1
                                && focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK)) {
                            lowerFocus = true;
                            downloadService.setVolume(0.1f);
                        } else if (lossPref == 0
                                || (lossPref == 1 && focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT)) {
                            pauseFocus = true;
                            downloadService.pause();
                        }
                    }
                } else if (focusChange == AudioManager.AUDIOFOCUS_GAIN) {
                    if (pauseFocus) {
                        pauseFocus = false;
                        downloadService.start();
                    } else if (lowerFocus) {
                        lowerFocus = false;
                        downloadService.setVolume(1.0f);
                    }
                } else if (focusChange == AudioManager.AUDIOFOCUS_LOSS && !downloadService.isJukeboxEnabled()) {
                    hasFocus = false;
                    downloadService.pause();
                    audioManager.abandonAudioFocus(this);
                }
            }
        }, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN);
    }
}

From source file:br.com.viniciuscr.notification2android.mediaPlayer.MediaPlaybackService.java

/**
 * Starts playback of a previously opened file.
 *//* w  ww .j  a va 2 s.  c o m*/
public void play() {
    mAudioManager.requestAudioFocus(mAudioFocusListener, AudioManager.STREAM_MUSIC,
            AudioManager.AUDIOFOCUS_GAIN);
    mAudioManager.registerMediaButtonEventReceiver(
            new ComponentName(this.getPackageName(), MediaButtonIntentReceiver.class.getName()));

    if (mPlayer.isInitialized()) {
        // if we are at the end of the song, go to the next song first
        long duration = mPlayer.duration();
        if (mRepeatMode != REPEAT_CURRENT && duration > 2000 && mPlayer.position() >= duration - 2000) {
            gotoNext(true);
        }

        mPlayer.start();
        // make sure we fade in, in case a previous fadein was stopped because
        // of another focus loss
        mMediaplayerHandler.removeMessages(FADEDOWN);
        mMediaplayerHandler.sendEmptyMessage(FADEUP);

        updateNotification();
        if (!mIsSupposedToBePlaying) {
            mIsSupposedToBePlaying = true;
            notifyChange(PLAYSTATE_CHANGED);
        }

    } else if (mPlayListLen <= 0) {
        // This is mostly so that if you press 'play' on a bluetooth headset
        // without every having played anything before, it will still play
        // something.
        setShuffleMode(SHUFFLE_AUTO);
    }
}

From source file:com.rks.musicx.services.MusicXService.java

@Override
public void onAudioFocusChange(int focusChange) {
    switch (focusChange) {
    case AudioManager.AUDIOFOCUS_LOSS:
        Log.d(TAG, "AudioFocus Loss");
        if (MediaPlayerSingleton.getInstance().getMediaPlayer().isPlaying()) {
            pause();/* w w  w  . j ava  2s .c om*/
            //service.stopSelf();
        }
        break;
    case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK:
        if (MediaPlayerSingleton.getInstance().getMediaPlayer().isPlaying()) {
            MediaPlayerSingleton.getInstance().getMediaPlayer().setVolume(0.3f, 0.3f);
            mIsDucked = true;
        }
        Log.d(TAG, "AudioFocus Loss Can Duck Transient");
        break;
    case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT:
        Log.d(TAG, "AudioFocus Loss Transient");
        if (MediaPlayerSingleton.getInstance().getMediaPlayer().isPlaying()) {
            pause();
            mLostAudioFocus = true;
        }
        break;
    case AudioManager.AUDIOFOCUS_GAIN:
        Log.d(TAG, "AudioFocus Gain");
        if (mIsDucked) {
            MediaPlayerSingleton.getInstance().getMediaPlayer().setVolume(1.0f, 1.0f);
            mIsDucked = false;
        } else if (mLostAudioFocus) {
            // If we temporarily lost the audio focus we can resume playback here
            if (MediaPlayerSingleton.getInstance().getMediaPlayer().isPlaying()) {
                play();
            }
            mLostAudioFocus = false;
        }
        break;
    default:
        Log.d(TAG, "Unknown focus");
    }
}

From source file:github.daneren2005.dsub.util.Util.java

@TargetApi(8)
public static void requestAudioFocus(final Context context) {
    if (Build.VERSION.SDK_INT >= 8 && focusListener == null) {
        final AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
        audioManager.requestAudioFocus(focusListener = new OnAudioFocusChangeListener() {
            public void onAudioFocusChange(int focusChange) {
                DownloadService downloadService = (DownloadService) context;
                if ((focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT
                        || focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK)
                        && !downloadService.isRemoteEnabled()) {
                    if (downloadService.getPlayerState() == PlayerState.STARTED) {
                        Log.i(TAG, "Temporary loss of focus");
                        SharedPreferences prefs = getPreferences(context);
                        int lossPref = Integer
                                .parseInt(prefs.getString(Constants.PREFERENCES_KEY_TEMP_LOSS, "1"));
                        if (lossPref == 2 || (lossPref == 1
                                && focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK)) {
                            lowerFocus = true;
                            downloadService.setVolume(0.1f);
                        } else if (lossPref == 0
                                || (lossPref == 1 && focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT)) {
                            pauseFocus = true;
                            downloadService.pause(true);
                        }/*w ww .ja v  a 2  s.c o  m*/
                    }
                } else if (focusChange == AudioManager.AUDIOFOCUS_GAIN) {
                    if (pauseFocus) {
                        pauseFocus = false;
                        downloadService.start();
                    } else if (lowerFocus) {
                        lowerFocus = false;
                        downloadService.setVolume(1.0f);
                    }
                } else if (focusChange == AudioManager.AUDIOFOCUS_LOSS && !downloadService.isRemoteEnabled()) {
                    Log.i(TAG, "Permanently lost focus");
                    focusListener = null;
                    downloadService.pause();
                    audioManager.abandonAudioFocus(this);
                }
            }
        }, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN);
    }
}

From source file:org.yammp.MusicPlaybackService.java

/**
 * Starts playback of a previously opened file.
 *//*from w w  w .j  a v  a2 s  .  c o  m*/
public void play() {

    CharSequence contentTitle, contentText = null;

    TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
    if (telephonyManager.getCallState() == TelephonyManager.CALL_STATE_OFFHOOK)
        return;

    mAudioManager.requestAudioFocus(mAudioFocusListener, AudioManager.STREAM_MUSIC,
            AudioManager.AUDIOFOCUS_GAIN);
    mAudioManager.registerMediaButtonEventReceiver(
            new ComponentName(getPackageName(), MediaButtonIntentReceiver.class.getName()));

    telephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);

    if (mPlayer.isInitialized()) {
        // if we are at the end of the song, go to the next song first
        long duration = mPlayer.duration();
        if (mRepeatMode != REPEAT_CURRENT && duration > 2000 && mPlayer.position() >= duration - 2000) {
            next(true);
        }

        mPlayer.start();

        // make sure we fade in, in case a previous fadein was stopped
        // because
        // of another focus loss
        mMediaplayerHandler.removeMessages(FADEDOWN);
        mMediaplayerHandler.sendEmptyMessage(FADEUP);

        contentTitle = getTrackName();

        String artist = getArtistName();
        boolean isUnknownArtist = artist == null || MediaStore.UNKNOWN_STRING.equals(artist);

        String album = getAlbumName();
        boolean isUnknownAlbum = album == null || MediaStore.UNKNOWN_STRING.equals(album);

        if (!isUnknownArtist && !isUnknownAlbum) {
            contentText = getString(R.string.notification_artist_album, artist, album);
        } else if (isUnknownArtist && !isUnknownAlbum) {
            contentText = album;
        } else if (!isUnknownArtist && isUnknownAlbum) {
            contentText = artist;
        }

        PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(INTENT_PLAYBACK_VIEWER), 0);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
        builder.setOngoing(true);
        builder.setSmallIcon(R.drawable.ic_stat_playback);
        builder.setContentIntent(contentIntent);
        builder.setContentTitle(contentTitle);
        builder.setContentText(contentText);
        mNotificationManager.notify(ID_NOTIFICATION_PLAYBACK, builder.getNotification());

        if (!mIsSupposedToBePlaying) {
            mIsSupposedToBePlaying = true;
            notifyChange(BROADCAST_PLAYSTATE_CHANGED);
        }

    } else if (mPlayListLen <= 0) {
        // This is mostly so that if you press 'play' on a bluetooth headset
        // without every having played anything before, it will still play
        // something.
        setShuffleMode(SHUFFLE_NORMAL);
    }
}

From source file:com.andrew.apolloMod.service.ApolloService.java

/**
 * Starts playback of a previously opened file.
 *///from   w  w  w. j a  va 2  s .c  om
public void play() {
    mAudioManager.requestAudioFocus(mAudioFocusListener, AudioManager.STREAM_MUSIC,
            AudioManager.AUDIOFOCUS_GAIN);
    mAudioManager.registerMediaButtonEventReceiver(
            new ComponentName(getPackageName(), MediaButtonIntentReceiver.class.getName()));

    if (mPlayer.isInitialized()) {
        // if we are at the end of the song, go to the next song first

        mPlayer.start();
        // make sure we fade in, in case a previous fadein was stopped
        // because
        // of another focus loss
        mMediaplayerHandler.removeMessages(FADEDOWN);
        mMediaplayerHandler.sendEmptyMessage(FADEUP);

        updateNotification();
        if (!mIsSupposedToBePlaying) {
            mIsSupposedToBePlaying = true;
            notifyChange(PLAYSTATE_CHANGED);
        }
    } else if (mPlayListLen <= 0) {
        // This is mostly so that if you press 'play' on a bluetooth headset
        // without every having played anything before, it will still play
        // something.
        setShuffleMode(SHUFFLE_AUTO);
    }
}

From source file:github.madmarty.madsonic.util.Util.java

@TargetApi(8)
public static void requestAudioFocus(final Context context) {
    if (Build.VERSION.SDK_INT >= 8 && !hasFocus) {
        final AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
        hasFocus = true;//from  w w w .  ja v a2 s.co  m
        audioManager.requestAudioFocus(new OnAudioFocusChangeListener() {
            public void onAudioFocusChange(int focusChange) {
                DownloadServiceImpl downloadService = (DownloadServiceImpl) context;
                if ((focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT
                        || focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK)
                        && !downloadService.isJukeboxEnabled()) {
                    if (downloadService.getPlayerState() == PlayerState.STARTED) {
                        SharedPreferences prefs = getPreferences(context);
                        int lossPref = Integer
                                .parseInt(prefs.getString(Constants.PREFERENCES_KEY_AUDIO_FOCUS, "1"));
                        if (lossPref == 2 || (lossPref == 1
                                && focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK)) {
                            lowerFocus = true;
                            downloadService.setVolume(0.1f);
                        } else if (lossPref == 0
                                || (lossPref == 1 && focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT)) {
                            pauseFocus = true;
                            downloadService.pause();
                        }
                    }
                } else if (focusChange == AudioManager.AUDIOFOCUS_GAIN) {
                    if (pauseFocus) {
                        pauseFocus = false;
                        downloadService.start();
                    } else if (lowerFocus) {
                        lowerFocus = false;
                        downloadService.setVolume(1.0f);
                    }
                } else if (focusChange == AudioManager.AUDIOFOCUS_LOSS && !downloadService.isJukeboxEnabled()) {
                    hasFocus = false;
                    downloadService.pause();
                    audioManager.abandonAudioFocus(this);
                }
            }
        }, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN);
    }
}

From source file:org.runbuddy.tomahawk.services.PlaybackService.java

/**
 * Try to get the system audio focus./*from   w  w w  .j  a  va  2 s .  c o m*/
 */
private void tryToGetAudioFocus() {
    Log.d(TAG, "tryToGetAudioFocus");
    if (mAudioFocus != AUDIO_FOCUSED) {
        int result = mAudioManager.requestAudioFocus(mFocusChangeListener, AudioManager.STREAM_MUSIC,
                AudioManager.AUDIOFOCUS_GAIN);
        if (result == AudioManager.AUDIOFOCUS_REQUEST_GRANTED) {
            mAudioFocus = AUDIO_FOCUSED;
        }
    }
}

From source file:net.sourceforge.servestream.service.MediaPlaybackService.java

/**
 * Starts playback of a previously opened file.
 *///from w ww . j  a  v a 2  s  . c o  m
public void play() {
    mAudioManager.requestAudioFocus(mAudioFocusListener, AudioManager.STREAM_MUSIC,
            AudioManager.AUDIOFOCUS_GAIN);
    MediaButtonHelper.registerMediaButtonEventReceiverCompat(mAudioManager, mMediaButtonReceiverComponent);

    if (mPlayer.isInitialized()) {
        // if we are at the end of the song, go to the next song first
        /*long duration = mPlayer.duration();
        if (mRepeatMode != REPEAT_CURRENT && duration > 2000 &&
        mPlayer.position() >= duration - 2000) {
        gotoNext(true);
        }*/

        mPlayer.start();
        // make sure we fade in, in case a previous fadein was stopped because
        // of another focus loss
        mMediaplayerHandler.removeMessages(FADEDOWN);
        mMediaplayerHandler.sendEmptyMessage(FADEUP);

        updateNotification(false);
        if (!mIsSupposedToBePlaying) {
            mIsSupposedToBePlaying = true;
            notifyChange(PLAYSTATE_CHANGED);
        }

    } else {
        openCurrentAndNext();
    }
}

Example usage for android.media AudioManager AUDIOFOCUS_GAIN

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