Example usage for android.media AudioManager STREAM_MUSIC

Introduction

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

Prototype

int STREAM_MUSIC

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

Click Source Link

Document

Used to identify the volume of audio streams for music playback

Usage

From source file:com.example.android.mediabrowserservice.Playback.java

public void play(MediaSessionCompat.QueueItem item) {
    mPlayOnFocusGain = true;//from  w  w  w.  ja v  a 2 s .  co m
    tryToGetAudioFocus();
    registerAudioNoisyReceiver();
    String mediaId = item.getDescription().getMediaId();
    boolean mediaHasChanged = !TextUtils.equals(mediaId, mCurrentMediaId);
    if (mediaHasChanged) {
        mCurrentPosition = 0;
        mCurrentMediaId = mediaId;
    }

    if (mState == PlaybackStateCompat.STATE_PAUSED && !mediaHasChanged && mMediaPlayer != null) {
        configMediaPlayerState();
    } else {
        mState = PlaybackStateCompat.STATE_STOPPED;
        relaxResources(false); // release everything except MediaPlayer
        MediaMetadataCompat track = mMusicProvider
                .getMusic(MediaIDHelper.extractMusicIDFromMediaID(item.getDescription().getMediaId()));

        String source = track.getString(MusicProvider.CUSTOM_METADATA_TRACK_SOURCE);

        try {
            createMediaPlayerIfNeeded();

            mState = PlaybackStateCompat.STATE_BUFFERING;

            mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mMediaPlayer.setDataSource(source);

            // Starts preparing the media player in the background. When
            // it's done, it will call our OnPreparedListener (that is,
            // the onPrepared() method on this class, since we set the
            // listener to 'this'). Until the media player is prepared,
            // we *cannot* call start() on it!
            mMediaPlayer.prepareAsync();

            // If we are streaming from the internet, we want to hold a
            // Wifi lock, which prevents the Wifi radio from going to
            // sleep while the song is playing.
            mWifiLock.acquire();

            if (mCallback != null) {
                mCallback.onPlaybackStatusChanged(mState);
            }

        } catch (IOException ex) {
            LogHelper.e(TAG, ex, "Exception playing song");
            if (mCallback != null) {
                mCallback.onError(ex.getMessage());
            }
        }
    }
}

---

From source file:com.andreadec.musicplayer.MusicService.java

/**
 * Called when the service is created.//w w w  .  ja  v a2 s. c  om
 */
@Override
public void onCreate() {
    PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
    wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "MusicServiceWakelock");

    // Initialize the telephony manager
    telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
    phoneStateListener = new MusicPhoneStateListener();
    notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    // Initialize pending intents
    quitPendingIntent = PendingIntent.getBroadcast(this, 0, new Intent("com.andreadec.musicplayer.quit"), 0);
    previousPendingIntent = PendingIntent.getBroadcast(this, 0,
            new Intent("com.andreadec.musicplayer.previous"), 0);
    playpausePendingIntent = PendingIntent.getBroadcast(this, 0,
            new Intent("com.andreadec.musicplayer.playpause"), 0);
    nextPendingIntent = PendingIntent.getBroadcast(this, 0, new Intent("com.andreadec.musicplayer.next"), 0);
    pendingIntent = PendingIntent.getActivity(this, 0,
            new Intent(this, MainActivity.class).setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP),
            PendingIntent.FLAG_UPDATE_CURRENT);

    // Read saved user preferences
    preferences = PreferenceManager.getDefaultSharedPreferences(this);

    // Initialize the media player
    mediaPlayer = new MediaPlayer();
    mediaPlayer.setOnCompletionListener(this);
    mediaPlayer.setWakeMode(this, PowerManager.PARTIAL_WAKE_LOCK); // Enable the wake lock to keep CPU running when the screen is switched off

    shuffle = preferences.getBoolean(Constants.PREFERENCE_SHUFFLE, Constants.DEFAULT_SHUFFLE);
    repeat = preferences.getBoolean(Constants.PREFERENCE_REPEAT, Constants.DEFAULT_REPEAT);
    repeatAll = preferences.getBoolean(Constants.PREFERENCE_REPEATALL, Constants.DEFAULT_REPEATALL);
    try { // This may fail if the device doesn't support bass boost
        bassBoost = new BassBoost(1, mediaPlayer.getAudioSessionId());
        bassBoost.setEnabled(
                preferences.getBoolean(Constants.PREFERENCE_BASSBOOST, Constants.DEFAULT_BASSBOOST));
        setBassBoostStrength(preferences.getInt(Constants.PREFERENCE_BASSBOOSTSTRENGTH,
                Constants.DEFAULT_BASSBOOSTSTRENGTH));
        bassBoostAvailable = true;
    } catch (Exception e) {
        bassBoostAvailable = false;
    }
    try { // This may fail if the device doesn't support equalizer
        equalizer = new Equalizer(1, mediaPlayer.getAudioSessionId());
        equalizer.setEnabled(
                preferences.getBoolean(Constants.PREFERENCE_EQUALIZER, Constants.DEFAULT_EQUALIZER));
        setEqualizerPreset(
                preferences.getInt(Constants.PREFERENCE_EQUALIZERPRESET, Constants.DEFAULT_EQUALIZERPRESET));
        equalizerAvailable = true;
    } catch (Exception e) {
        equalizerAvailable = false;
    }
    random = new Random(System.nanoTime()); // Necessary for song shuffle

    shakeListener = new ShakeListener(this);
    if (preferences.getBoolean(Constants.PREFERENCE_SHAKEENABLED, Constants.DEFAULT_SHAKEENABLED)) {
        shakeListener.enable();
    }

    telephonyManager.listen(phoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); // Start listen for telephony events

    // Inizialize the audio manager
    audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
    mediaButtonReceiverComponent = new ComponentName(getPackageName(), MediaButtonReceiver.class.getName());
    audioManager.registerMediaButtonEventReceiver(mediaButtonReceiverComponent);
    audioManager.requestAudioFocus(null, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN);

    // Initialize remote control client
    if (Build.VERSION.SDK_INT >= 14) {
        icon = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
        Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
        mediaButtonIntent.setComponent(mediaButtonReceiverComponent);
        PendingIntent mediaPendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 0,
                mediaButtonIntent, 0);

        remoteControlClient = new RemoteControlClient(mediaPendingIntent);
        remoteControlClient.setTransportControlFlags(RemoteControlClient.FLAG_KEY_MEDIA_PLAY_PAUSE
                | RemoteControlClient.FLAG_KEY_MEDIA_PREVIOUS | RemoteControlClient.FLAG_KEY_MEDIA_NEXT);
        audioManager.registerRemoteControlClient(remoteControlClient);
    }

    updateNotificationMessage();

    IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction("com.andreadec.musicplayer.quit");
    intentFilter.addAction("com.andreadec.musicplayer.previous");
    intentFilter.addAction("com.andreadec.musicplayer.previousNoRestart");
    intentFilter.addAction("com.andreadec.musicplayer.playpause");
    intentFilter.addAction("com.andreadec.musicplayer.next");
    intentFilter.addAction(AudioManager.ACTION_AUDIO_BECOMING_NOISY);
    broadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if (action.equals("com.andreadec.musicplayer.quit")) {
                sendBroadcast(new Intent("com.andreadec.musicplayer.quitactivity"));
                stopSelf();
                return;
            } else if (action.equals("com.andreadec.musicplayer.previous")) {
                previousItem(false);
            } else if (action.equals("com.andreadec.musicplayer.previousNoRestart")) {
                previousItem(true);
            } else if (action.equals("com.andreadec.musicplayer.playpause")) {
                playPause();
            } else if (action.equals("com.andreadec.musicplayer.next")) {
                nextItem();
            } else if (action.equals(AudioManager.ACTION_AUDIO_BECOMING_NOISY)) {
                if (preferences.getBoolean(Constants.PREFERENCE_STOPPLAYINGWHENHEADSETDISCONNECTED,
                        Constants.DEFAULT_STOPPLAYINGWHENHEADSETDISCONNECTED)) {
                    pause();
                }
            }
        }
    };
    registerReceiver(broadcastReceiver, intentFilter);

    if (!isPlaying()) {
        loadLastSong();
    }

    startForeground(Constants.NOTIFICATION_MAIN, notification);
}

---

From source file:com.torrenttunes.android.LocalPlayback.java

@Override
public void play(QueueItem item) {
    mPlayOnFocusGain = true;/*from  www  .j a  v a  2 s .c  o m*/
    tryToGetAudioFocus();
    registerAudioNoisyReceiver();
    String mediaId = item.getDescription().getMediaId();
    boolean mediaHasChanged = !TextUtils.equals(mediaId, mCurrentMediaId);
    if (mediaHasChanged) {
        mCurrentPosition = 0;
        mCurrentMediaId = mediaId;
    }

    if (mState == PlaybackState.STATE_PAUSED && !mediaHasChanged && mMediaPlayer != null) {
        configMediaPlayerState();
    } else {
        mState = PlaybackState.STATE_STOPPED;
        relaxResources(false); // release everything except MediaPlayer
        MediaMetadataCompat track = mMusicProvider
                .getMusic(MediaIDHelper.extractMusicIDFromMediaID(item.getDescription().getMediaId()));

        String source = track.getString(MusicProvider.CUSTOM_METADATA_TRACK_SOURCE);

        try {
            createMediaPlayerIfNeeded();

            mState = PlaybackState.STATE_BUFFERING;

            mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mMediaPlayer.setDataSource(source);

            // Starts preparing the media player in the background. When
            // it's done, it will call our OnPreparedListener (that is,
            // the onPrepared() method on this class, since we set the
            // listener to 'this'). Until the media player is prepared,
            // we *cannot* call start() on it!
            mMediaPlayer.prepareAsync();

            // If we are streaming from the internet, we want to hold a
            // Wifi lock, which prevents the Wifi radio from going to
            // sleep while the song is playing.
            mWifiLock.acquire();

            if (mCallback != null) {
                mCallback.onPlaybackStatusChanged(mState);
            }

        } catch (IOException ex) {
            LogHelper.e(TAG, ex, "Exception playing song");
            if (mCallback != null) {
                mCallback.onError(ex.getMessage());
            }
        }
    }
}

---

From source file:com.appdevper.mediaplayer.app.LocalPlayback.java

@Override
public void play(QueueItem item) {
    mPlayOnFocusGain = true;/*from ww  w  . j  av  a  2s  .  c o  m*/
    tryToGetAudioFocus();
    registerAudioNoisyReceiver();
    String mediaId = item.getDescription().getMediaId();
    boolean mediaHasChanged = !TextUtils.equals(mediaId, mCurrentMediaId);
    if (mediaHasChanged) {
        mCurrentPosition = 0;
        mCurrentMediaId = mediaId;
    }

    if (mState == PlaybackState.STATE_PAUSED && !mediaHasChanged && mMediaPlayer != null) {
        configMediaPlayerState();
    } else {
        mState = PlaybackState.STATE_STOPPED;
        relaxResources(false); // release everything except MediaPlayer
        MediaMetadataCompat track = mMusicProvider.getMusic(item.getDescription().getMediaId());

        String source = track.getString(MusicProviderSource.CUSTOM_METADATA_TRACK_SOURCE);

        try {
            createMediaPlayerIfNeeded();

            mState = PlaybackState.STATE_BUFFERING;

            mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mMediaPlayer.setDataSource(source);
            mMediaPlayer.prepareAsync();

            mWifiLock.acquire();

            if (mCallback != null) {
                mCallback.onPlaybackStatusChanged(mState);
            }

        } catch (IOException ex) {
            LogHelper.e(TAG, ex, "Exception playing song");
            if (mCallback != null) {
                mCallback.onError(ex.getMessage());
            }
        }
    }
}

---

From source file:com.webileapps.fragments.CordovaFragment.java

protected void init() {
    appView = makeWebView();/*from  w  w w .j  a v  a  2  s  .c  om*/
    createViews();
    if (!appView.isInitialized()) {
        appView.init(cordovaInterface, pluginEntries, preferences);
    }
    cordovaInterface.onCordovaInit(appView.getPluginManager());

    // Wire the hardware volume controls to control media if desired.
    String volumePref = preferences.getString("DefaultVolumeStream", "");
    if ("media".equals(volumePref.toLowerCase(Locale.ENGLISH))) {
        getActivity().setVolumeControlStream(AudioManager.STREAM_MUSIC);
    }

    if (BuildConfig.DEBUG) {
        ((WebView) appView.getView())
                .setWebViewClient(new SystemWebViewClient((SystemWebViewEngine) appView.getEngine()) {
                    @Override
                    public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
                        handler.proceed();
                    }
                });
    }
}

---

From source file:com.example.android.uamp.LocalPlayback.java

@Override
public void play(MediaSessionCompat.QueueItem item) {
    mPlayOnFocusGain = true;/*from   ww w  .  ja v  a  2  s .c o  m*/
    tryToGetAudioFocus();
    registerAudioNoisyReceiver();
    String mediaId = item.getDescription().getMediaId();
    boolean mediaHasChanged = !TextUtils.equals(mediaId, mCurrentMediaId);
    if (mediaHasChanged) {
        mCurrentPosition = 0;
        mCurrentMediaId = mediaId;
    }

    if (mState == PlaybackStateCompat.STATE_PAUSED && !mediaHasChanged && mMediaPlayer != null) {
        configMediaPlayerState();
    } else {
        mState = PlaybackStateCompat.STATE_STOPPED;
        relaxResources(false); // release everything except MediaPlayer
        MediaMetadataCompat track = mMusicProvider
                .getMusic(MediaIDHelper.extractMusicIDFromMediaID(item.getDescription().getMediaId()));

        String source = track.getString(MusicProvider.CUSTOM_METADATA_TRACK_SOURCE);

        try {
            createMediaPlayerIfNeeded();

            mState = PlaybackStateCompat.STATE_BUFFERING;

            mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mMediaPlayer.setDataSource(source);

            // Starts preparing the media player in the background. When
            // it's done, it will call our OnPreparedListener (that is,
            // the onPrepared() method on this class, since we set the
            // listener to 'this'). Until the media player is prepared,
            // we *cannot* call start() on it!
            mMediaPlayer.prepareAsync();

            // If we are streaming from the internet, we want to hold a
            // Wifi lock, which prevents the Wifi radio from going to
            // sleep while the song is playing.
            mWifiLock.acquire();

            if (mCallback != null) {
                mCallback.onPlaybackStatusChanged(mState);
            }

        } catch (IOException ex) {
            LogHelper.e(TAG, ex, "Exception playing song");
            if (mCallback != null) {
                mCallback.onError(ex.getMessage());
            }
        }
    }
}

---

From source file:info.tongrenlu.music.LocalPlayback.java

@Override
public void play(Uri dataUri) {
    mPlayOnFocusGain = true;//ww  w .  j  av a 2s .co m
    tryToGetAudioFocus();
    registerAudioNoisyReceiver();
    boolean mediaHasChanged = false;
    if (mCurrentMediaUri == null || !mCurrentMediaUri.equals(dataUri)) {
        mCurrentPosition = 0;
        mCurrentMediaUri = dataUri;
        mediaHasChanged = true;
    }

    if (mState == PlaybackStateCompat.STATE_PAUSED && !mediaHasChanged && mMediaPlayer != null) {
        configMediaPlayerState();
    } else {
        mState = PlaybackStateCompat.STATE_STOPPED;
        relaxResources(false); // release everything except MediaPlayer

        try {
            createMediaPlayerIfNeeded();
            mDuration = 0;
            mCurrentStreamPosition = 0;
            mState = PlaybackStateCompat.STATE_BUFFERING;

            mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mMediaPlayer.setDataSource(mService, dataUri);

            // Starts preparing the media player in the background. When
            // it's done, it will call our OnPreparedListener (that is,
            // the onPrepared() method on this class, since we set the
            // listener to 'this'). Until the media player is prepared,
            // we *cannot* call start() on it!
            mMediaPlayer.prepareAsync();

            // If we are streaming from the internet, we want to hold a
            // Wifi lock, which prevents the Wifi radio from going to
            // sleep while the song is playing.
            mWifiLock.acquire();

            if (mCallback != null) {
                mCallback.onPlaybackStatusChanged(mState);
            }

        } catch (IOException ex) {
            Log.e(TAG, "Exception playing song", ex);
            if (mCallback != null) {
                mCallback.onError(ex.getMessage());
            }
        }
    }
}

---

From source file:net.gcompris.GComprisActivity.java

public static boolean requestAudioFocus() {
    Context mContext = m_instance.getApplicationContext();
    AudioManager am = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);

    // Request audio focus for playback
    int result = am.requestAudioFocus(null,
            // Use the music stream.
            AudioManager.STREAM_MUSIC,
            // Request permanent focus.
            AudioManager.AUDIOFOCUS_GAIN);

    if (result == AudioManager.AUDIOFOCUS_REQUEST_GRANTED) {
        return true;
    }/* w  w  w.j  a  v  a  2  s . c o m*/
    return false;
}

---

From source file:com.example.android.gft.PhrasesFragment.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.word_list, container, false);

    // Create and setup the {@link AudioManager} to request audio focus
    mAudioManager = (AudioManager) getActivity().getSystemService(Context.AUDIO_SERVICE);

    // Create a list of words
    final ArrayList<Word> words = new ArrayList<Word>();
    words.add(new Word(R.string.phrase_where_are_you_going, R.string.miwok_phrase_where_are_you_going,
            R.raw.phrase_where_are_you_going));
    words.add(new Word(R.string.phrase_what_is_your_name, R.string.miwok_phrase_what_is_your_name,
            R.raw.phrase_what_is_your_name));
    words.add(new Word(R.string.phrase_my_name_is, R.string.miwok_phrase_my_name_is, R.raw.phrase_my_name_is));
    words.add(new Word(R.string.phrase_how_are_you_feeling, R.string.miwok_phrase_how_are_you_feeling,
            R.raw.phrase_how_are_you_feeling));
    words.add(new Word(R.string.phrase_im_feeling_good, R.string.miwok_phrase_im_feeling_good,
            R.raw.phrase_im_feeling_good));
    words.add(new Word(R.string.phrase_are_you_coming, R.string.miwok_phrase_are_you_coming,
            R.raw.phrase_are_you_coming));
    words.add(new Word(R.string.phrase_yes_im_coming, R.string.miwok_phrase_yes_im_coming,
            R.raw.phrase_yes_im_coming));
    words.add(new Word(R.string.phrase_im_coming, R.string.miwok_phrase_im_coming, R.raw.phrase_im_coming));
    words.add(new Word(R.string.phrase_lets_go, R.string.miwok_phrase_lets_go, R.raw.phrase_lets_go));
    words.add(new Word(R.string.phrase_come_here, R.string.miwok_phrase_come_here, R.raw.phrase_come_here));

    // Create an {@link WordAdapter}, whose data source is a list of {@link Word}s. The
    // adapter knows how to create list items for each item in the list.
    WordAdapter adapter = new WordAdapter(getActivity(), words, R.color.category_phrases);

    // Find the {@link ListView} object in the view hierarchy of the {@link Activity}.
    // There should be a {@link ListView} with the view ID called list, which is declared in the
    // word_list.xml layout file.
    ListView listView = (ListView) rootView.findViewById(R.id.list);

    // Make the {@link ListView} use the {@link WordAdapter} we created above, so that the
    // {@link ListView} will display list items for each {@link Word} in the list.
    listView.setAdapter(adapter);/*from   www. j a v  a2s  .co  m*/

    // Set a click listener to play the audio when the list item is clicked on
    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
            // Release the media player if it currently exists because we are about to
            // play a different sound file
            releaseMediaPlayer();

            // Get the {@link Word} object at the given position the user clicked on
            Word word = words.get(position);

            // Request audio focus so in order to play the audio file. The app needs to play a
            // short audio file, so we will request audio focus with a short amount of time
            // with AUDIOFOCUS_GAIN_TRANSIENT.
            int result = mAudioManager.requestAudioFocus(mOnAudioFocusChangeListener, AudioManager.STREAM_MUSIC,
                    AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);

            if (result == AudioManager.AUDIOFOCUS_REQUEST_GRANTED) {
                // We have audio focus now.

                // Create and setup the {@link MediaPlayer} for the audio resource associated
                // with the current word
                mMediaPlayer = MediaPlayer.create(getActivity(), word.getAudioResourceId());

                // Start the audio file
                mMediaPlayer.start();

                // Setup a listener on the media player, so that we can stop and release the
                // media player once the sound has finished playing.
                mMediaPlayer.setOnCompletionListener(mCompletionListener);
            }
        }
    });

    return rootView;
}

---

From source file:com.example.haizhu.myvoiceassistant.ui.RobotChatActivity.java

private void iniData() {
    globalPref = GlobalPref.getInstance();
    TruingDataHandler.setListener(this);
    chatAdapter = new RobotChatAdapter(getApplicationContext(), resultList);
    initListener();//from  ww w  . j  a va  2 s.c  om
    speechRecognizer = SpeechRecognizer.createSpeechRecognizer(getApplicationContext(),
            new ComponentName(this, VoiceRecognitionService.class));
    speechRecognizer.setRecognitionListener(recognitionListener);

    speechSynthesizer = new SpeechSynthesizer(AssistantApplication.getInstance().getApplicationContext(),
            "holder", speechSynthesizerListener);
    // ?setApiKey???apiKeysecretKey
    speechSynthesizer.setApiKey("DnBhRg9PvmNSs0a6OD4BHLAk", "8492ef7b1b435bce2b98e41c1023e67b");
    speechSynthesizer.setAudioStreamType(AudioManager.STREAM_MUSIC);

    listener = new DrawerLayout.DrawerListener() {
        @Override
        public void onDrawerSlide(View drawerView, float slideOffset) {

        }

        @Override
        public void onDrawerOpened(View drawerView) {

        }

        @Override
        public void onDrawerClosed(View drawerView) {

        }

        @Override
        public void onDrawerStateChanged(int newState) {

        }
    };
}

---

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