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Apache License
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package com.prt2121.muse; /*from w w w. j av a 2 s .co m*/ import android.annotation.SuppressLint; import android.app.AlarmManager; import android.app.PendingIntent; import android.app.Service; import android.content.BroadcastReceiver; import android.content.ContentResolver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.SharedPreferences; import android.database.Cursor; import android.graphics.Bitmap; import android.media.AudioManager; import android.media.AudioManager.OnAudioFocusChangeListener; import android.media.MediaMetadataRetriever; import android.media.MediaPlayer; import android.media.RemoteControlClient; import android.media.audiofx.AudioEffect; import android.net.Uri; import android.os.Build; import android.os.Handler; import android.os.HandlerThread; import android.os.IBinder; import android.os.Looper; import android.os.Message; import android.os.PowerManager; import android.os.PowerManager.WakeLock; import android.os.RemoteException; import android.os.SystemClock; import android.provider.MediaStore; import android.provider.MediaStore.Audio.AlbumColumns; import android.provider.MediaStore.Audio.AudioColumns; import android.util.Log; import java.io.IOException; import java.lang.ref.WeakReference; import java.util.LinkedList; import java.util.Random; import java.util.TreeSet; /** * A backbround {@link Service} used to keep music playing between activities * and when the user moves Apollo into the background. */ @SuppressLint("NewApi") public class PlayerService extends Service { /** * Indicates that the music has paused or resumed */ public static final String PLAYSTATE_CHANGED = "com.andrew.apollo.playstatechanged"; /** * Indicates that music playback position within * a title was changed */ public static final String POSITION_CHANGED = "com.android.apollo.positionchanged"; /** * Indicates the meta data has changed in some way, like a track change */ public static final String META_CHANGED = "com.andrew.apollo.metachanged"; /** * Indicates the queue has been updated */ public static final String QUEUE_CHANGED = "com.andrew.apollo.queuechanged"; /** * Indicates the repeat mode chaned */ public static final String REPEATMODE_CHANGED = "com.andrew.apollo.repeatmodechanged"; /** * Indicates the shuffle mode chaned */ public static final String SHUFFLEMODE_CHANGED = "com.andrew.apollo.shufflemodechanged"; /** * For backwards compatibility reasons, also provide sticky * broadcasts under the music package */ public static final String APOLLO_PACKAGE_NAME = "com.andrew.apollo"; public static final String MUSIC_PACKAGE_NAME = "com.android.music"; /** * Called to indicate a general service commmand. Used in */ public static final String SERVICECMD = "com.andrew.apollo.musicservicecommand"; /** * Called to go toggle between pausing and playing the music */ public static final String TOGGLEPAUSE_ACTION = "com.andrew.apollo.togglepause"; /** * Called to go to pause the playback */ public static final String PAUSE_ACTION = "com.andrew.apollo.pause"; /** * Called to go to stop the playback */ public static final String STOP_ACTION = "com.andrew.apollo.stop"; /** * Called to go to the previous track */ public static final String PREVIOUS_ACTION = "com.andrew.apollo.previous"; /** * Called to go to the next track */ public static final String NEXT_ACTION = "com.andrew.apollo.next"; /** * Called to change the repeat mode */ public static final String REPEAT_ACTION = "com.andrew.apollo.repeat"; /** * Called to change the shuffle mode */ public static final String SHUFFLE_ACTION = "com.andrew.apollo.shuffle"; /** * Called to update the service about the foreground state of Apollo's activities */ public static final String FOREGROUND_STATE_CHANGED = "com.andrew.apollo.fgstatechanged"; public static final String NOW_IN_FOREGROUND = "nowinforeground"; public static final String FROM_MEDIA_BUTTON = "frommediabutton"; /** * Used to easily notify a list that it should refresh. i.e. A playlist * changes */ public static final String REFRESH = "com.andrew.apollo.refresh"; /** * Called to update the remote control client */ public static final String UPDATE_LOCKSCREEN = "com.andrew.apollo.updatelockscreen"; public static final String CMDNAME = "command"; private final BroadcastReceiver mIntentReceiver = new BroadcastReceiver() { /** * {@inheritDoc} */ @Override public void onReceive(final Context context, final Intent intent) { final String command = intent.getStringExtra(CMDNAME); handleCommandIntent(intent); } }; public static final String CMDTOGGLEPAUSE = "togglepause"; public static final String CMDSTOP = "stop"; public static final String CMDPAUSE = "pause"; public static final String CMDPLAY = "play"; public static final String CMDPREVIOUS = "previous"; public static final String CMDNEXT = "next"; public static final String CMDNOTIF = "buttonId"; /** * Moves a list to the front of the queue */ public static final int NOW = 1; /** * Moves a list to the next position in the queue */ public static final int NEXT = 2; /** * Moves a list to the last position in the queue */ public static final int LAST = 3; /** * Shuffles no songs, turns shuffling off */ public static final int SHUFFLE_NONE = 0; private int mShuffleMode = SHUFFLE_NONE; /** * Shuffles all songs */ public static final int SHUFFLE_NORMAL = 1; /** * Party shuffle */ public static final int SHUFFLE_AUTO = 2; /** * Turns repeat off */ public static final int REPEAT_NONE = 0; private int mRepeatMode = REPEAT_NONE; /** * Repeats the current track in a list */ public static final int REPEAT_CURRENT = 1; /** * Repeats all the tracks in a list */ public static final int REPEAT_ALL = 2; private static final String TAG = "PlayerService"; private static final boolean D = false; /** * Used by the alarm intent to shutdown the service after being idle */ private static final String SHUTDOWN = "com.andrew.apollo.shutdown"; private static final int IDCOLIDX = 0; /** * Indicates when the track ends */ private static final int TRACK_ENDED = 1; /** * Indicates that the current track was changed the next track */ private static final int TRACK_WENT_TO_NEXT = 2; /** * Indicates when the release the wake lock */ private static final int RELEASE_WAKELOCK = 3; /** * Indicates the player died */ private static final int SERVER_DIED = 4; /** * Indicates some sort of focus change, maybe a phone call */ private static final int FOCUSCHANGE = 5; /** * Indicates to fade the volume down */ private static final int FADEDOWN = 6; /** * Indicates to fade the volume back up */ private static final int FADEUP = 7; /** * Idle time before stopping the foreground notfication (1 minute) */ private static final int IDLE_DELAY = 60000; /** * Song play time used as threshold for rewinding to the beginning of the * track instead of skipping to the previous track when getting the PREVIOUS * command */ private static final long REWIND_INSTEAD_PREVIOUS_THRESHOLD = 3000; /** * The max size allowed for the track history */ private static final int MAX_HISTORY_SIZE = 100; /** * The columns used to retrieve any info from the current track */ private static final String[] PROJECTION = new String[]{ "audio._id AS _id", MediaStore.Audio.Media.ARTIST, MediaStore.Audio.Media.ALBUM, MediaStore.Audio.Media.TITLE, MediaStore.Audio.Media.DATA, MediaStore.Audio.Media.MIME_TYPE, MediaStore.Audio.Media.ALBUM_ID, MediaStore.Audio.Media.ARTIST_ID }; /** * The columns used to retrieve any info from the current album */ private static final String[] ALBUM_PROJECTION = new String[]{ MediaStore.Audio.Albums.ALBUM, MediaStore.Audio.Albums.ARTIST, MediaStore.Audio.Albums.LAST_YEAR }; /** * Keeps a mapping of the track history */ private static final LinkedList<Integer> mHistory = Lists.newLinkedList(); /** * Used to shuffle the tracks */ private static final Shuffler mShuffler = new Shuffler(); /** * Used to save the queue as reverse hexadecimal numbers, which we can * generate faster than normal decimal or hexadecimal numbers, which in * turn allows us to save the playlist more often without worrying too * much about performance */ private static final char HEX_DIGITS[] = new char[]{ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; /** * Service stub */ private final IBinder mBinder = new ServiceStub(this); private final OnAudioFocusChangeListener mAudioFocusListener = new OnAudioFocusChangeListener() { /** * {@inheritDoc} */ @Override public void onAudioFocusChange(final int focusChange) { mPlayerHandler.obtainMessage(FOCUSCHANGE, focusChange, 0).sendToTarget(); } }; /** * The media player */ private MultiPlayer mPlayer; /** * The path of the current file to play */ private String mFileToPlay; /** * Keeps the service running when the screen is off */ private WakeLock mWakeLock; /** * Alarm intent for removing the notification when nothing is playing * for some time */ private AlarmManager mAlarmManager; private PendingIntent mShutdownIntent; private boolean mShutdownScheduled; /** * The cursor used to retrieve info on the current track and run the * necessary queries to play audio files */ private Cursor mCursor; /** * The cursor used to retrieve info on the album the current track is * part of, if any. */ private Cursor mAlbumCursor; /** * Monitors the audio state */ private AudioManager mAudioManager; /** * Settings used to save and retrieve the queue and history */ private SharedPreferences mPreferences; /** * Used to know when the service is active */ private boolean mServiceInUse = false; /** * Used to know if something should be playing or not */ private boolean mIsSupposedToBePlaying = false; // private ComponentName mMediaButtonReceiverComponent; /** * Used to indicate if the queue can be saved */ private boolean mQueueIsSaveable = true; /** * Used to track what type of audio focus loss caused the playback to pause */ private boolean mPausedByTransientLossOfFocus = false; /** * Used to track whether any of Apollo's activities is in the foreground */ private boolean mAnyActivityInForeground = false; /** * Lock screen controls */ private RemoteControlClient mRemoteControlClient; // We use this to distinguish between different cards when saving/restoring // playlists private int mCardId; private int mPlayListLen = 0; private int mPlayPos = -1; private int mNextPlayPos = -1; private int mOpenFailedCounter = 0; private int mMediaMountedCount = 0; private int mServiceStartId = -1; private long[] mPlayList = null; private long[] mAutoShuffleList = null; private MusicPlayerHandler mPlayerHandler; private BroadcastReceiver mUnmountReceiver = null; /** * {@inheritDoc} */ @Override public IBinder onBind(final Intent intent) { if (D) { Log.d(TAG, "Service bound, intent = " + intent); } cancelShutdown(); mServiceInUse = true; return mBinder; } /** * {@inheritDoc} */ @Override public boolean onUnbind(final Intent intent) { if (D) { Log.d(TAG, "Service unbound"); } mServiceInUse = false; saveQueue(true); if (mIsSupposedToBePlaying || mPausedByTransientLossOfFocus) { // Something is currently playing, or will be playing once // an in-progress action requesting audio focus ends, so don't stop // the service now. return true; // If there is a playlist but playback is paused, then wait a while // before stopping the service, so that pause/resume isn't slow. // Also delay stopping the service if we're transitioning between // tracks. } else if (mPlayListLen > 0 || mPlayerHandler.hasMessages(TRACK_ENDED)) { scheduleDelayedShutdown(); return true; } stopSelf(mServiceStartId); return true; } /** * {@inheritDoc} */ @Override public void onRebind(final Intent intent) { cancelShutdown(); mServiceInUse = true; } /** * {@inheritDoc} */ @Override public void onCreate() { if (D) { Log.d(TAG, "Creating service"); } super.onCreate(); // Start up the thread running the service. Note that we create a // separate thread because the service normally runs in the process's // main thread, which we don't want to block. We also make it // background priority so CPU-intensive work will not disrupt the UI. final HandlerThread thread = new HandlerThread("MusicPlayerHandler", android.os.Process.THREAD_PRIORITY_BACKGROUND); thread.start(); // Initialize the handler mPlayerHandler = new MusicPlayerHandler(this, thread.getLooper()); // Initialize the audio manager and register any headset controls for // playback mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE); // mMediaButtonReceiverComponent = new ComponentName(getPackageName(), // MediaButtonIntentReceiver.class.getName()); // mAudioManager.registerMediaButtonEventReceiver(mMediaButtonReceiverComponent); // Use the remote control APIs to set the playback state setUpRemoteControlClient(); // Initialize the preferences mPreferences = getSharedPreferences("Service", 0); mCardId = getCardId(); registerExternalStorageListener(); // Initialize the media player mPlayer = new MultiPlayer(this); mPlayer.setHandler(mPlayerHandler); // Initialize the intent filter and each action final IntentFilter filter = new IntentFilter(); filter.addAction(SERVICECMD); filter.addAction(TOGGLEPAUSE_ACTION); filter.addAction(PAUSE_ACTION); filter.addAction(STOP_ACTION); filter.addAction(NEXT_ACTION); filter.addAction(PREVIOUS_ACTION); filter.addAction(REPEAT_ACTION); filter.addAction(SHUFFLE_ACTION); // Attach the broadcast listener registerReceiver(mIntentReceiver, filter); // Initialize the wake lock final PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE); mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, getClass().getName()); mWakeLock.setReferenceCounted(false); // Initialize the delayed shutdown intent final Intent shutdownIntent = new Intent(this, PlayerService.class); shutdownIntent.setAction(SHUTDOWN); mAlarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE); mShutdownIntent = PendingIntent.getService(this, 0, shutdownIntent, 0); // Listen for the idle state scheduleDelayedShutdown(); // Bring the queue back reloadQueue(); notifyChange(QUEUE_CHANGED); notifyChange(META_CHANGED); } /** * Initializes the remote control client */ private void setUpRemoteControlClient() { final Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON); // mediaButtonIntent.setComponent(mMediaButtonReceiverComponent); mRemoteControlClient = new RemoteControlClient( PendingIntent.getBroadcast(getApplicationContext(), 0, mediaButtonIntent, PendingIntent.FLAG_UPDATE_CURRENT)); mAudioManager.registerRemoteControlClient(mRemoteControlClient); // Flags for the media transport control that this client supports. int flags = RemoteControlClient.FLAG_KEY_MEDIA_PREVIOUS | RemoteControlClient.FLAG_KEY_MEDIA_NEXT | RemoteControlClient.FLAG_KEY_MEDIA_PLAY | RemoteControlClient.FLAG_KEY_MEDIA_PAUSE | RemoteControlClient.FLAG_KEY_MEDIA_PLAY_PAUSE | RemoteControlClient.FLAG_KEY_MEDIA_STOP; if (hasJellyBeanMR2()) { flags |= RemoteControlClient.FLAG_KEY_MEDIA_POSITION_UPDATE; mRemoteControlClient.setOnGetPlaybackPositionListener( new RemoteControlClient.OnGetPlaybackPositionListener() { @Override public long onGetPlaybackPosition() { return position(); } }); mRemoteControlClient.setPlaybackPositionUpdateListener( new RemoteControlClient.OnPlaybackPositionUpdateListener() { @Override public void onPlaybackPositionUpdate(long newPositionMs) { seek(newPositionMs); } }); } mRemoteControlClient.setTransportControlFlags(flags); } /** * {@inheritDoc} */ @Override public void onDestroy() { if (D) { Log.d(TAG, "Destroying service"); } super.onDestroy(); // Remove any sound effects final Intent audioEffectsIntent = new Intent( AudioEffect.ACTION_CLOSE_AUDIO_EFFECT_CONTROL_SESSION); audioEffectsIntent.putExtra(AudioEffect.EXTRA_AUDIO_SESSION, getAudioSessionId()); audioEffectsIntent.putExtra(AudioEffect.EXTRA_PACKAGE_NAME, getPackageName()); sendBroadcast(audioEffectsIntent); // remove any pending alarms mAlarmManager.cancel(mShutdownIntent); // Remove all pending messages before kill the player mPlayerHandler.removeCallbacksAndMessages(null); // Release the player mPlayer.release(); mPlayer = null; // Remove the audio focus listener and lock screen controls mAudioManager.abandonAudioFocus(mAudioFocusListener); mAudioManager.unregisterRemoteControlClient(mRemoteControlClient); // Remove any callbacks from the handler mPlayerHandler.removeCallbacksAndMessages(null); // Close the cursor closeCursor(); // Unregister the mount listener unregisterReceiver(mIntentReceiver); if (mUnmountReceiver != null) { unregisterReceiver(mUnmountReceiver); mUnmountReceiver = null; } // Release the wake lock mWakeLock.release(); } /** * {@inheritDoc} */ @Override public int onStartCommand(final Intent intent, final int flags, final int startId) { if (D) { Log.d(TAG, "Got new intent " + intent + ", startId = " + startId); } mServiceStartId = startId; if (intent != null) { final String action = intent.getAction(); if (intent.hasExtra(NOW_IN_FOREGROUND)) { mAnyActivityInForeground = intent.getBooleanExtra(NOW_IN_FOREGROUND, false); } if (SHUTDOWN.equals(action)) { mShutdownScheduled = false; releaseServiceUiAndStop(); return START_NOT_STICKY; } handleCommandIntent(intent); } // Make sure the service will shut down on its own if it was // just started but not bound to and nothing is playing scheduleDelayedShutdown(); // if (intent != null && intent.getBooleanExtra(FROM_MEDIA_BUTTON, false)) { // MediaButtonIntentReceiver.completeWakefulIntent(intent); // } return START_STICKY; } private void releaseServiceUiAndStop() { if (isPlaying() || mPausedByTransientLossOfFocus || mPlayerHandler.hasMessages(TRACK_ENDED)) { return; } mAudioManager.abandonAudioFocus(mAudioFocusListener); if (!mServiceInUse) { saveQueue(true); stopSelf(mServiceStartId); } } private void handleCommandIntent(Intent intent) { final String action = intent.getAction(); final String command = SERVICECMD.equals(action) ? intent.getStringExtra(CMDNAME) : null; if (D) { Log.d(TAG, "handleCommandIntent: action = " + action + ", command = " + command); } if (CMDNEXT.equals(command) || NEXT_ACTION.equals(action)) { gotoNext(true); } else if (CMDPREVIOUS.equals(command) || PREVIOUS_ACTION.equals(action)) { if (position() < REWIND_INSTEAD_PREVIOUS_THRESHOLD) { prev(); } else { seek(0); play(); } } else if (CMDTOGGLEPAUSE.equals(command) || TOGGLEPAUSE_ACTION.equals(action)) { if (isPlaying()) { pause(); mPausedByTransientLossOfFocus = false; } else { play(); } } else if (CMDPAUSE.equals(command) || PAUSE_ACTION.equals(action)) { pause(); mPausedByTransientLossOfFocus = false; } else if (CMDPLAY.equals(command)) { play(); } else if (CMDSTOP.equals(command) || STOP_ACTION.equals(action)) { pause(); mPausedByTransientLossOfFocus = false; seek(0); releaseServiceUiAndStop(); } else if (REPEAT_ACTION.equals(action)) { cycleRepeat(); } else if (SHUFFLE_ACTION.equals(action)) { cycleShuffle(); } } /** * @return A card ID used to save and restore playlists, i.e., the queue. */ private int getCardId() { final ContentResolver resolver = getContentResolver(); Cursor cursor = resolver.query(Uri.parse("content://media/external/fs_id"), null, null, null, null); int mCardId = -1; if (cursor != null && cursor.moveToFirst()) { mCardId = cursor.getInt(0); cursor.close(); cursor = null; } return mCardId; } /** * Called when we receive a ACTION_MEDIA_EJECT notification. * * @param storagePath The path to mount point for the removed media */ public void closeExternalStorageFiles(final String storagePath) { stop(true); notifyChange(QUEUE_CHANGED); notifyChange(META_CHANGED); } /** * Registers an intent to listen for ACTION_MEDIA_EJECT notifications. The * intent will call closeExternalStorageFiles() if the external media is * going to be ejected, so applications can clean up any files they have * open. */ public void registerExternalStorageListener() { if (mUnmountReceiver == null) { mUnmountReceiver = new BroadcastReceiver() { /** * {@inheritDoc} */ @Override public void onReceive(final Context context, final Intent intent) { final String action = intent.getAction(); if (action.equals(Intent.ACTION_MEDIA_EJECT)) { saveQueue(true); mQueueIsSaveable = false; closeExternalStorageFiles(intent.getData().getPath()); } else if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) { mMediaMountedCount++; mCardId = getCardId(); reloadQueue(); mQueueIsSaveable = true; notifyChange(QUEUE_CHANGED); notifyChange(META_CHANGED); } } }; final IntentFilter filter = new IntentFilter(); filter.addAction(Intent.ACTION_MEDIA_EJECT); filter.addAction(Intent.ACTION_MEDIA_MOUNTED); filter.addDataScheme("file"); registerReceiver(mUnmountReceiver, filter); } } private void scheduleDelayedShutdown() { if (D) { Log.v(TAG, "Scheduling shutdown in " + IDLE_DELAY + " ms"); } mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime() + IDLE_DELAY, mShutdownIntent); mShutdownScheduled = true; } private void cancelShutdown() { if (D) { Log.d(TAG, "Cancelling delayed shutdown, scheduled = " + mShutdownScheduled); } if (mShutdownScheduled) { mAlarmManager.cancel(mShutdownIntent); mShutdownScheduled = false; } } /** * Stops playback * * @param goToIdle True to go to the idle state, false otherwise */ private void stop(final boolean goToIdle) { if (D) { Log.d(TAG, "Stopping playback, goToIdle = " + goToIdle); } if (mPlayer.isInitialized()) { mPlayer.stop(); } mFileToPlay = null; closeCursor(); if (goToIdle) { scheduleDelayedShutdown(); mIsSupposedToBePlaying = false; } else { stopForeground(false); } } /** * Removes the range of tracks specified from the play list. If a file * within the range is the file currently being played, playback will move * to the next file after the range. * * @param first The first file to be removed * @param last The last file to be removed * @return the number of tracks deleted */ private int removeTracksInternal(int first, int last) { synchronized (this) { if (last < first) { return 0; } else if (first < 0) { first = 0; } else if (last >= mPlayListLen) { last = mPlayListLen - 1; } boolean gotonext = false; if (first <= mPlayPos && mPlayPos <= last) { mPlayPos = first; gotonext = true; } else if (mPlayPos > last) { mPlayPos -= last - first + 1; } final int num = mPlayListLen - last - 1; for (int i = 0; i < num; i++) { mPlayList[first + i] = mPlayList[last + 1 + i]; } mPlayListLen -= last - first + 1; if (gotonext) { if (mPlayListLen == 0) { stop(true); mPlayPos = -1; closeCursor(); } else { if (mShuffleMode != SHUFFLE_NONE) { mPlayPos = getNextPosition(true); } else if (mPlayPos >= mPlayListLen) { mPlayPos = 0; } final boolean wasPlaying = isPlaying(); stop(false); openCurrentAndNext(); if (wasPlaying) { play(); } } notifyChange(META_CHANGED); } return last - first + 1; } } /** * Adds a list to the playlist * * @param list The list to add * @param position The position to place the tracks */ private void addToPlayList(final long[] list, int position) { final int addlen = list.length; if (position < 0) { mPlayListLen = 0; position = 0; } ensurePlayListCapacity(mPlayListLen + addlen); if (position > mPlayListLen) { position = mPlayListLen; } final int tailsize = mPlayListLen - position; for (int i = tailsize; i > 0; i--) { mPlayList[position + i] = mPlayList[position + i - addlen]; } for (int i = 0; i < addlen; i++) { mPlayList[position + i] = list[i]; } mPlayListLen += addlen; if (mPlayListLen == 0) { closeCursor(); notifyChange(META_CHANGED); } } /** * @param trackId The track ID */ private void updateCursor(final long trackId) { updateCursor("_id=" + trackId, null); } private void updateCursor(final String selection, final String[] selectionArgs) { synchronized (this) { closeCursor(); mCursor = openCursorAndGoToFirst(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, PROJECTION, selection, selectionArgs); } updateAlbumCursor(); } private void updateCursor(final Uri uri) { synchronized (this) { closeCursor(); mCursor = openCursorAndGoToFirst(uri, PROJECTION, null, null); } updateAlbumCursor(); } private void updateAlbumCursor() { long albumId = getAlbumId(); if (albumId >= 0) { mAlbumCursor = openCursorAndGoToFirst(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, ALBUM_PROJECTION, "_id=" + albumId, null); } else { mAlbumCursor = null; } } private Cursor openCursorAndGoToFirst(Uri uri, String[] projection, String selection, String[] selectionArgs) { Cursor c = getContentResolver().query(uri, projection, selection, selectionArgs, null, null); if (c == null) { return null; } if (!c.moveToFirst()) { c.close(); return null; } return c; } private void closeCursor() { if (mCursor != null) { mCursor.close(); mCursor = null; } if (mAlbumCursor != null) { mAlbumCursor.close(); mAlbumCursor = null; } } /** * Called to open a new file as the current track and prepare the next for * playback */ private void openCurrentAndNext() { openCurrentAndMaybeNext(true); } /** * Called to open a new file as the current track and prepare the next for * playback * * @param openNext True to prepare the next track for playback, false * otherwise. */ private void openCurrentAndMaybeNext(final boolean openNext) { synchronized (this) { closeCursor(); if (mPlayListLen == 0) { return; } stop(false); updateCursor(mPlayList[mPlayPos]); while (true) { if (mCursor != null && !mCursor.isClosed() && openFile(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI + "/" + mCursor.getLong(IDCOLIDX))) { break; } // if we get here then opening the file failed. We can close the // cursor now, because // we're either going to create a new one next, or stop trying closeCursor(); if (mOpenFailedCounter++ < 10 && mPlayListLen > 1) { final int pos = getNextPosition(false); if (pos < 0) { scheduleDelayedShutdown(); if (mIsSupposedToBePlaying) { mIsSupposedToBePlaying = false; notifyChange(PLAYSTATE_CHANGED); } return; } mPlayPos = pos; stop(false); mPlayPos = pos; updateCursor(mPlayList[mPlayPos]); } else { mOpenFailedCounter = 0; Log.w(TAG, "Failed to open file for playback"); scheduleDelayedShutdown(); if (mIsSupposedToBePlaying) { mIsSupposedToBePlaying = false; notifyChange(PLAYSTATE_CHANGED); } return; } } if (openNext) { setNextTrack(); } } } /** * @param force True to force the player onto the track next, false * otherwise. * @return The next position to play. */ private int getNextPosition(final boolean force) { if (!force && mRepeatMode == REPEAT_CURRENT) { if (mPlayPos < 0) { return 0; } return mPlayPos; } else if (mShuffleMode == SHUFFLE_NORMAL) { if (mPlayPos >= 0) { mHistory.add(mPlayPos); } if (mHistory.size() > MAX_HISTORY_SIZE) { mHistory.remove(0); } final int numTracks = mPlayListLen; final int[] tracks = new int[numTracks]; for (int i = 0; i < numTracks; i++) { tracks[i] = i; } final int numHistory = mHistory.size(); int numUnplayed = numTracks; for (int i = 0; i < numHistory; i++) { final int idx = mHistory.get(i).intValue(); if (idx < numTracks && tracks[idx] >= 0) { numUnplayed--; tracks[idx] = -1; } } if (numUnplayed <= 0) { if (mRepeatMode == REPEAT_ALL || force) { numUnplayed = numTracks; for (int i = 0; i < numTracks; i++) { tracks[i] = i; } } else { return -1; } } int skip = 0; if (mShuffleMode == SHUFFLE_NORMAL || mShuffleMode == SHUFFLE_AUTO) { skip = mShuffler.nextInt(numUnplayed); } int cnt = -1; while (true) { while (tracks[++cnt] < 0) { ; } skip--; if (skip < 0) { break; } } return cnt; } else if (mShuffleMode == SHUFFLE_AUTO) { doAutoShuffleUpdate(); return mPlayPos + 1; } else { if (mPlayPos >= mPlayListLen - 1) { if (mRepeatMode == REPEAT_NONE && !force) { return -1; } else if (mRepeatMode == REPEAT_ALL || force) { return 0; } return -1; } else { return mPlayPos + 1; } } } /** * Sets the track track to be played */ private void setNextTrack() { mNextPlayPos = getNextPosition(false); if (D) { Log.d(TAG, "setNextTrack: next play position = " + mNextPlayPos); } if (mNextPlayPos >= 0 && mPlayList != null) { final long id = mPlayList[mNextPlayPos]; mPlayer.setNextDataSource(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI + "/" + id); } else { mPlayer.setNextDataSource(null); } } /** * Creates a shuffled playlist used for party mode */ private boolean makeAutoShuffleList() { Cursor cursor = null; try { cursor = getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, new String[]{ MediaStore.Audio.Media._ID }, MediaStore.Audio.Media.IS_MUSIC + "=1", null, null); if (cursor == null || cursor.getCount() == 0) { return false; } final int len = cursor.getCount(); final long[] list = new long[len]; for (int i = 0; i < len; i++) { cursor.moveToNext(); list[i] = cursor.getLong(0); } mAutoShuffleList = list; return true; } catch (final RuntimeException e) { } finally { if (cursor != null) { cursor.close(); cursor = null; } } return false; } /** * Creates the party shuffle playlist */ private void doAutoShuffleUpdate() { boolean notify = false; if (mPlayPos > 10) { removeTracks(0, mPlayPos - 9); notify = true; } final int toAdd = 7 - (mPlayListLen - (mPlayPos < 0 ? -1 : mPlayPos)); for (int i = 0; i < toAdd; i++) { int lookback = mHistory.size(); int idx = -1; while (true) { idx = mShuffler.nextInt(mAutoShuffleList.length); if (!wasRecentlyUsed(idx, lookback)) { break; } lookback /= 2; } mHistory.add(idx); if (mHistory.size() > MAX_HISTORY_SIZE) { mHistory.remove(0); } ensurePlayListCapacity(mPlayListLen + 1); mPlayList[mPlayListLen++] = mAutoShuffleList[idx]; notify = true; } if (notify) { notifyChange(QUEUE_CHANGED); } } /**/ private boolean wasRecentlyUsed(final int idx, int lookbacksize) { if (lookbacksize == 0) { return false; } final int histsize = mHistory.size(); if (histsize < lookbacksize) { lookbacksize = histsize; } final int maxidx = histsize - 1; for (int i = 0; i < lookbacksize; i++) { final long entry = mHistory.get(maxidx - i); if (entry == idx) { return true; } } return false; } /** * Makes sure the playlist has enough space to hold all of the songs * * @param size The size of the playlist */ private void ensurePlayListCapacity(final int size) { if (mPlayList == null || size > mPlayList.length) { // reallocate at 2x requested size so we don't // need to grow and copy the array for every // insert final long[] newlist = new long[size * 2]; final int len = mPlayList != null ? mPlayList.length : mPlayListLen; for (int i = 0; i < len; i++) { newlist[i] = mPlayList[i]; } mPlayList = newlist; } // FIXME: shrink the array when the needed size is much smaller // than the allocated size } /** * Notify the change-receivers that something has changed. */ private void notifyChange(final String what) { if (D) { Log.d(TAG, "notifyChange: what = " + what); } // Update the lockscreen controls updateRemoteControlClient(what); if (what.equals(POSITION_CHANGED)) { return; } final Intent intent = new Intent(what); intent.putExtra("id", getAudioId()); intent.putExtra("artist", getArtistName()); intent.putExtra("album", getAlbumName()); intent.putExtra("track", getTrackName()); intent.putExtra("playing", isPlaying()); intent.putExtra("isfavorite", isFavorite()); sendStickyBroadcast(intent); final Intent musicIntent = new Intent(intent); musicIntent.setAction(what.replace(APOLLO_PACKAGE_NAME, MUSIC_PACKAGE_NAME)); sendStickyBroadcast(musicIntent); if (what.equals(QUEUE_CHANGED)) { saveQueue(true); if (isPlaying()) { setNextTrack(); } } else { saveQueue(false); } } /** * Updates the lockscreen controls. * * @param what The broadcast */ private void updateRemoteControlClient(final String what) { int playState = mIsSupposedToBePlaying ? RemoteControlClient.PLAYSTATE_PLAYING : RemoteControlClient.PLAYSTATE_PAUSED; if (hasJellyBeanMR2() && (what.equals(PLAYSTATE_CHANGED) || what.equals(POSITION_CHANGED))) { mRemoteControlClient.setPlaybackState(playState, position(), 1.0f); } else if (what.equals(PLAYSTATE_CHANGED)) { mRemoteControlClient.setPlaybackState(playState); } else if (what.equals(META_CHANGED) || what.equals(QUEUE_CHANGED)) { Bitmap albumArt = getAlbumArt(); if (albumArt != null) { // RemoteControlClient wants to recycle the bitmaps thrown at it, so we need // to make sure not to hand out our cache copy Bitmap.Config config = albumArt.getConfig(); if (config == null) { config = Bitmap.Config.ARGB_8888; } albumArt = albumArt.copy(config, false); } mRemoteControlClient .editMetadata(true) .putString(MediaMetadataRetriever.METADATA_KEY_ARTIST, getArtistName()) .putString(MediaMetadataRetriever.METADATA_KEY_ALBUMARTIST, getAlbumArtistName()) .putString(MediaMetadataRetriever.METADATA_KEY_ALBUM, getAlbumName()) .putString(MediaMetadataRetriever.METADATA_KEY_TITLE, getTrackName()) .putLong(MediaMetadataRetriever.METADATA_KEY_DURATION, duration()) .putBitmap(RemoteControlClient.MetadataEditor.BITMAP_KEY_ARTWORK, albumArt) .apply(); if (hasJellyBeanMR2()) { mRemoteControlClient.setPlaybackState(playState, position(), 1.0f); } } } /** * Saves the queue * * @param full True if the queue is full */ private void saveQueue(final boolean full) { if (!mQueueIsSaveable) { return; } final SharedPreferences.Editor editor = mPreferences.edit(); if (full) { final StringBuilder q = new StringBuilder(); int len = mPlayListLen; for (int i = 0; i < len; i++) { long n = mPlayList[i]; if (n < 0) { continue; } else if (n == 0) { q.append("0;"); } else { while (n != 0) { final int digit = (int) (n & 0xf); n >>>= 4; q.append(HEX_DIGITS[digit]); } q.append(";"); } } editor.putString("queue", q.toString()); editor.putInt("cardid", mCardId); if (mShuffleMode != SHUFFLE_NONE) { len = mHistory.size(); q.setLength(0); for (int i = 0; i < len; i++) { int n = mHistory.get(i); if (n == 0) { q.append("0;"); } else { while (n != 0) { final int digit = n & 0xf; n >>>= 4; q.append(HEX_DIGITS[digit]); } q.append(";"); } } editor.putString("history", q.toString()); } } editor.putInt("curpos", mPlayPos); if (mPlayer.isInitialized()) { editor.putLong("seekpos", mPlayer.position()); } editor.putInt("repeatmode", mRepeatMode); editor.putInt("shufflemode", mShuffleMode); editor.apply(); } /** * Reloads the queue as the user left it the last time they stopped using * Apollo */ private void reloadQueue() { String q = null; int id = mCardId; if (mPreferences.contains("cardid")) { id = mPreferences.getInt("cardid", ~mCardId); } if (id == mCardId) { q = mPreferences.getString("queue", ""); } int qlen = q != null ? q.length() : 0; if (qlen > 1) { int plen = 0; int n = 0; int shift = 0; for (int i = 0; i < qlen; i++) { final char c = q.charAt(i); if (c == ';') { ensurePlayListCapacity(plen + 1); mPlayList[plen] = n; plen++; n = 0; shift = 0; } else { if (c >= '0' && c <= '9') { n += c - '0' << shift; } else if (c >= 'a' && c <= 'f') { n += 10 + c - 'a' << shift; } else { plen = 0; break; } shift += 4; } } mPlayListLen = plen; final int pos = mPreferences.getInt("curpos", 0); if (pos < 0 || pos >= mPlayListLen) { mPlayListLen = 0; return; } mPlayPos = pos; updateCursor(mPlayList[mPlayPos]); if (mCursor == null) { SystemClock.sleep(3000); updateCursor(mPlayList[mPlayPos]); } synchronized (this) { closeCursor(); mOpenFailedCounter = 20; openCurrentAndNext(); } if (!mPlayer.isInitialized()) { mPlayListLen = 0; return; } final long seekpos = mPreferences.getLong("seekpos", 0); seek(seekpos >= 0 && seekpos < duration() ? seekpos : 0); if (D) { Log.d(TAG, "restored queue, currently at position " + position() + "/" + duration() + " (requested " + seekpos + ")"); } int repmode = mPreferences.getInt("repeatmode", REPEAT_NONE); if (repmode != REPEAT_ALL && repmode != REPEAT_CURRENT) { repmode = REPEAT_NONE; } mRepeatMode = repmode; int shufmode = mPreferences.getInt("shufflemode", SHUFFLE_NONE); if (shufmode != SHUFFLE_AUTO && shufmode != SHUFFLE_NORMAL) { shufmode = SHUFFLE_NONE; } if (shufmode != SHUFFLE_NONE) { q = mPreferences.getString("history", ""); qlen = q != null ? q.length() : 0; if (qlen > 1) { plen = 0; n = 0; shift = 0; mHistory.clear(); for (int i = 0; i < qlen; i++) { final char c = q.charAt(i); if (c == ';') { if (n >= mPlayListLen) { mHistory.clear(); break; } mHistory.add(n); n = 0; shift = 0; } else { if (c >= '0' && c <= '9') { n += c - '0' << shift; } else if (c >= 'a' && c <= 'f') { n += 10 + c - 'a' << shift; } else { mHistory.clear(); break; } shift += 4; } } } } if (shufmode == SHUFFLE_AUTO) { if (!makeAutoShuffleList()) { shufmode = SHUFFLE_NONE; } } mShuffleMode = shufmode; } } /** * Opens a file and prepares it for playback * * @param path The path of the file to open */ public boolean openFile(final String path) { if (D) { Log.d(TAG, "openFile: path = " + path); } synchronized (this) { if (path == null) { return false; } // If mCursor is null, try to associate path with a database cursor if (mCursor == null) { Uri uri = Uri.parse(path); long id = -1; try { id = Long.valueOf(uri.getLastPathSegment()); } catch (NumberFormatException ex) { // Ignore } if (id != -1 && path.startsWith(MediaStore.Audio.Media. EXTERNAL_CONTENT_URI.toString())) { updateCursor(uri); } else if (id != -1 && path.startsWith(MediaStore.Files.getContentUri( "external").toString())) { updateCursor(id); } else { String where = MediaStore.Audio.Media.DATA + "=?"; String[] selectionArgs = new String[]{path}; updateCursor(where, selectionArgs); } try { if (mCursor != null) { ensurePlayListCapacity(1); mPlayListLen = 1; mPlayList[0] = mCursor.getLong(IDCOLIDX); mPlayPos = 0; } } catch (final UnsupportedOperationException ex) { } } mFileToPlay = path; mPlayer.setDataSource(mFileToPlay); if (mPlayer.isInitialized()) { mOpenFailedCounter = 0; return true; } stop(true); return false; } } /** * Returns the audio session ID * * @return The current media player audio session ID */ public int getAudioSessionId() { synchronized (this) { return mPlayer.getAudioSessionId(); } } /** * Indicates if the media storeage device has been mounted or not * * @return 1 if Intent.ACTION_MEDIA_MOUNTED is called, 0 otherwise */ public int getMediaMountedCount() { return mMediaMountedCount; } /** * Returns the shuffle mode * * @return The current shuffle mode (all, party, none) */ public int getShuffleMode() { return mShuffleMode; } /** * Sets the shuffle mode * * @param shuffleMode The shuffle mode to use */ public void setShuffleMode(final int shuffleMode) { synchronized (this) { if (mShuffleMode == shuffleMode && mPlayListLen > 0) { return; } mShuffleMode = shuffleMode; if (mShuffleMode == SHUFFLE_AUTO) { if (makeAutoShuffleList()) { mPlayListLen = 0; doAutoShuffleUpdate(); mPlayPos = 0; openCurrentAndNext(); play(); notifyChange(META_CHANGED); return; } else { mShuffleMode = SHUFFLE_NONE; } } saveQueue(false); notifyChange(SHUFFLEMODE_CHANGED); } } /** * Returns the repeat mode * * @return The current repeat mode (all, one, none) */ public int getRepeatMode() { return mRepeatMode; } /** * Sets the repeat mode * * @param repeatmode The repeat mode to use */ public void setRepeatMode(final int repeatmode) { synchronized (this) { mRepeatMode = repeatmode; setNextTrack(); saveQueue(false); notifyChange(REPEATMODE_CHANGED); } } /** * Removes all instances of the track with the given ID from the playlist. * * @param id The id to be removed * @return how many instances of the track were removed */ public int removeTrack(final long id) { int numremoved = 0; synchronized (this) { for (int i = 0; i < mPlayListLen; i++) { if (mPlayList[i] == id) { numremoved += removeTracksInternal(i, i); i--; } } } if (numremoved > 0) { notifyChange(QUEUE_CHANGED); } return numremoved; } /** * Removes the range of tracks specified from the play list. If a file * within the range is the file currently being played, playback will move * to the next file after the range. * * @param first The first file to be removed * @param last The last file to be removed * @return the number of tracks deleted */ public int removeTracks(final int first, final int last) { final int numremoved = removeTracksInternal(first, last); if (numremoved > 0) { notifyChange(QUEUE_CHANGED); } return numremoved; } /** * Returns the position in the queue * * @return the current position in the queue */ public int getQueuePosition() { synchronized (this) { return mPlayPos; } } /** * Sets the position of a track in the queue * * @param index The position to place the track */ public void setQueuePosition(final int index) { synchronized (this) { stop(false); mPlayPos = index; openCurrentAndNext(); play(); notifyChange(META_CHANGED); if (mShuffleMode == SHUFFLE_AUTO) { doAutoShuffleUpdate(); } } } /** * Returns the path to current song * * @return The path to the current song */ public String getPath() { synchronized (this) { if (mCursor == null) { return null; } return mCursor.getString(mCursor.getColumnIndexOrThrow(AudioColumns.DATA)); } } /** * Returns the album name * * @return The current song album Name */ public String getAlbumName() { synchronized (this) { if (mCursor == null) { return null; } return mCursor.getString(mCursor.getColumnIndexOrThrow(AudioColumns.ALBUM)); } } /** * Returns the song name * * @return The current song name */ public String getTrackName() { synchronized (this) { if (mCursor == null) { return null; } return mCursor.getString(mCursor.getColumnIndexOrThrow(AudioColumns.TITLE)); } } /** * Returns the artist name * * @return The current song artist name */ public String getArtistName() { synchronized (this) { if (mCursor == null) { return null; } return mCursor.getString(mCursor.getColumnIndexOrThrow(AudioColumns.ARTIST)); } } /** * Returns the artist name * * @return The current song artist name */ public String getAlbumArtistName() { synchronized (this) { if (mAlbumCursor == null) { return null; } return mAlbumCursor.getString(mAlbumCursor.getColumnIndexOrThrow(AlbumColumns.ARTIST)); } } /** * Returns the album ID * * @return The current song album ID */ public long getAlbumId() { synchronized (this) { if (mCursor == null) { return -1; } return mCursor.getLong(mCursor.getColumnIndexOrThrow(AudioColumns.ALBUM_ID)); } } /** * Returns the artist ID * * @return The current song artist ID */ public long getArtistId() { synchronized (this) { if (mCursor == null) { return -1; } return mCursor.getLong(mCursor.getColumnIndexOrThrow(AudioColumns.ARTIST_ID)); } } /** * Returns the current audio ID * * @return The current track ID */ public long getAudioId() { synchronized (this) { if (mPlayPos >= 0 && mPlayer.isInitialized()) { return mPlayList[mPlayPos]; } } return -1; } /** * Seeks the current track to a specific time * * @param position The time to seek to * @return The time to play the track at */ public long seek(long position) { if (mPlayer.isInitialized()) { if (position < 0) { position = 0; } else if (position > mPlayer.duration()) { position = mPlayer.duration(); } long result = mPlayer.seek(position); notifyChange(POSITION_CHANGED); return result; } return -1; } /** * Returns the current position in time of the currenttrack * * @return The current playback position in miliseconds */ public long position() { if (mPlayer.isInitialized()) { return mPlayer.position(); } return -1; } /** * Returns the full duration of the current track * * @return The duration of the current track in miliseconds */ public long duration() { if (mPlayer.isInitialized()) { return mPlayer.duration(); } return -1; } /** * Returns the queue * * @return The queue as a long[] */ public long[] getQueue() { synchronized (this) { final int len = mPlayListLen; final long[] list = new long[len]; for (int i = 0; i < len; i++) { list[i] = mPlayList[i]; } return list; } } /** * @return True if music is playing, false otherwise */ public boolean isPlaying() { return mIsSupposedToBePlaying; } /** * True if the current track is a "favorite", false otherwise */ public boolean isFavorite() { return false; } /** * Opens a list for playback * * @param list The list of tracks to open * @param position The position to start playback at */ public void open(final long[] list, final int position) { synchronized (this) { if (mShuffleMode == SHUFFLE_AUTO) { mShuffleMode = SHUFFLE_NORMAL; } final long oldId = getAudioId(); final int listlength = list.length; boolean newlist = true; if (mPlayListLen == listlength) { newlist = false; for (int i = 0; i < listlength; i++) { if (list[i] != mPlayList[i]) { newlist = true; break; } } } if (newlist) { addToPlayList(list, -1); notifyChange(QUEUE_CHANGED); } if (position >= 0) { mPlayPos = position; } else { mPlayPos = mShuffler.nextInt(mPlayListLen); } mHistory.clear(); openCurrentAndNext(); if (oldId != getAudioId()) { notifyChange(META_CHANGED); } } } /** * Stops playback. */ public void stop() { stop(true); } /** * Resumes or starts playback. */ public void play() { int status = mAudioManager.requestAudioFocus(mAudioFocusListener, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN); if (D) { Log.d(TAG, "Starting playback: audio focus request status = " + status); } if (status != AudioManager.AUDIOFOCUS_REQUEST_GRANTED) { return; } // mAudioManager.registerMediaButtonEventReceiver(new ComponentName(getPackageName(), // MediaButtonIntentReceiver.class.getName())); if (mPlayer.isInitialized()) { setNextTrack(); final long duration = mPlayer.duration(); if (mRepeatMode != REPEAT_CURRENT && duration > 2000 && mPlayer.position() >= duration - 2000) { gotoNext(true); } mPlayer.start(); mPlayerHandler.removeMessages(FADEDOWN); mPlayerHandler.sendEmptyMessage(FADEUP); if (!mIsSupposedToBePlaying) { mIsSupposedToBePlaying = true; notifyChange(PLAYSTATE_CHANGED); } cancelShutdown(); } else if (mPlayListLen <= 0) { setShuffleMode(SHUFFLE_AUTO); } } /** * Temporarily pauses playback. */ public void pause() { if (D) { Log.d(TAG, "Pausing playback"); } synchronized (this) { mPlayerHandler.removeMessages(FADEUP); if (mIsSupposedToBePlaying) { mPlayer.pause(); scheduleDelayedShutdown(); mIsSupposedToBePlaying = false; notifyChange(PLAYSTATE_CHANGED); } } } /** * Changes from the current track to the next track */ public void gotoNext(final boolean force) { if (D) { Log.d(TAG, "Going to next track"); } synchronized (this) { if (mPlayListLen <= 0) { if (D) { Log.d(TAG, "No play queue"); } scheduleDelayedShutdown(); return; } final int pos = getNextPosition(force); if (pos < 0) { scheduleDelayedShutdown(); if (mIsSupposedToBePlaying) { mIsSupposedToBePlaying = false; notifyChange(PLAYSTATE_CHANGED); } return; } mPlayPos = pos; stop(false); mPlayPos = pos; openCurrentAndNext(); play(); notifyChange(META_CHANGED); } } /** * Changes from the current track to the previous played track */ public void prev() { if (D) { Log.d(TAG, "Going to previous track"); } synchronized (this) { if (mShuffleMode == SHUFFLE_NORMAL) { // Go to previously-played track and remove it from the history final int histsize = mHistory.size(); if (histsize == 0) { return; } final Integer pos = mHistory.remove(histsize - 1); mPlayPos = pos.intValue(); } else { if (mPlayPos > 0) { mPlayPos--; } else { mPlayPos = mPlayListLen - 1; } } stop(false); openCurrent(); play(); notifyChange(META_CHANGED); } } /** * We don't want to open the current and next track when the user is using * the {@code #prev()} method because they won't be able to travel back to * the previously listened track if they're shuffling. */ private void openCurrent() { openCurrentAndMaybeNext(false); } /** * Toggles the current song as a favorite. */ public void toggleFavorite() { } /** * Moves an item in the queue from one position to another * * @param from The position the item is currently at * @param to The position the item is being moved to */ public void moveQueueItem(int from, int to) { synchronized (this) { if (from >= mPlayListLen) { from = mPlayListLen - 1; } if (to >= mPlayListLen) { to = mPlayListLen - 1; } if (from < to) { final long tmp = mPlayList[from]; for (int i = from; i < to; i++) { mPlayList[i] = mPlayList[i + 1]; } mPlayList[to] = tmp; if (mPlayPos == from) { mPlayPos = to; } else if (mPlayPos >= from && mPlayPos <= to) { mPlayPos--; } } else if (to < from) { final long tmp = mPlayList[from]; for (int i = from; i > to; i--) { mPlayList[i] = mPlayList[i - 1]; } mPlayList[to] = tmp; if (mPlayPos == from) { mPlayPos = to; } else if (mPlayPos >= to && mPlayPos <= from) { mPlayPos++; } } notifyChange(QUEUE_CHANGED); } } /** * Queues a new list for playback * * @param list The list to queue * @param action The action to take */ public void enqueue(final long[] list, final int action) { synchronized (this) { if (action == NEXT && mPlayPos + 1 < mPlayListLen) { addToPlayList(list, mPlayPos + 1); notifyChange(QUEUE_CHANGED); } else { addToPlayList(list, Integer.MAX_VALUE); notifyChange(QUEUE_CHANGED); if (action == NOW) { mPlayPos = mPlayListLen - list.length; openCurrentAndNext(); play(); notifyChange(META_CHANGED); return; } } if (mPlayPos < 0) { mPlayPos = 0; openCurrentAndNext(); play(); notifyChange(META_CHANGED); } } } /** * Cycles through the different repeat modes */ private void cycleRepeat() { if (mRepeatMode == REPEAT_NONE) { setRepeatMode(REPEAT_ALL); } else if (mRepeatMode == REPEAT_ALL) { setRepeatMode(REPEAT_CURRENT); if (mShuffleMode != SHUFFLE_NONE) { setShuffleMode(SHUFFLE_NONE); } } else { setRepeatMode(REPEAT_NONE); } } /** * Cycles through the different shuffle modes */ private void cycleShuffle() { if (mShuffleMode == SHUFFLE_NONE) { setShuffleMode(SHUFFLE_NORMAL); if (mRepeatMode == REPEAT_CURRENT) { setRepeatMode(REPEAT_ALL); } } else if (mShuffleMode == SHUFFLE_NORMAL || mShuffleMode == SHUFFLE_AUTO) { setShuffleMode(SHUFFLE_NONE); } } /** * @return The album art for the current album. */ public Bitmap getAlbumArt() { // Return the cached artwork return null; } /** * Called when one of the lists should refresh or requery. */ public void refresh() { notifyChange(REFRESH); } private static final class MusicPlayerHandler extends Handler { private final WeakReference<PlayerService> mService; private float mCurrentVolume = 1.0f; /** * Constructor of <code>MusicPlayerHandler</code> * * @param service The service to use. * @param looper The thread to run on. */ public MusicPlayerHandler(final PlayerService service, final Looper looper) { super(looper); mService = new WeakReference<PlayerService>(service); } /** * {@inheritDoc} */ @Override public void handleMessage(final Message msg) { final PlayerService service = mService.get(); if (service == null) { return; } switch (msg.what) { case FADEDOWN: mCurrentVolume -= .05f; if (mCurrentVolume > .2f) { sendEmptyMessageDelayed(FADEDOWN, 10); } else { mCurrentVolume = .2f; } service.mPlayer.setVolume(mCurrentVolume); break; case FADEUP: mCurrentVolume += .01f; if (mCurrentVolume < 1.0f) { sendEmptyMessageDelayed(FADEUP, 10); } else { mCurrentVolume = 1.0f; } service.mPlayer.setVolume(mCurrentVolume); break; case SERVER_DIED: if (service.isPlaying()) { service.gotoNext(true); } else { service.openCurrentAndNext(); } break; case TRACK_WENT_TO_NEXT: service.mPlayPos = service.mNextPlayPos; if (service.mCursor != null) { service.mCursor.close(); } service.updateCursor(service.mPlayList[service.mPlayPos]); service.notifyChange(META_CHANGED); service.setNextTrack(); break; case TRACK_ENDED: if (service.mRepeatMode == REPEAT_CURRENT) { service.seek(0); service.play(); } else { service.gotoNext(false); } break; case RELEASE_WAKELOCK: service.mWakeLock.release(); break; case FOCUSCHANGE: if (D) { Log.d(TAG, "Received audio focus change event " + msg.arg1); } switch (msg.arg1) { case AudioManager.AUDIOFOCUS_LOSS: case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT: if (service.isPlaying()) { service.mPausedByTransientLossOfFocus = msg.arg1 == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT; } service.pause(); break; case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK: removeMessages(FADEUP); sendEmptyMessage(FADEDOWN); break; case AudioManager.AUDIOFOCUS_GAIN: if (!service.isPlaying() && service.mPausedByTransientLossOfFocus) { service.mPausedByTransientLossOfFocus = false; mCurrentVolume = 0f; service.mPlayer.setVolume(mCurrentVolume); service.play(); } else { removeMessages(FADEDOWN); sendEmptyMessage(FADEUP); } break; default: } break; default: break; } } } private static final class Shuffler { private final LinkedList<Integer> mHistoryOfNumbers = new LinkedList<Integer>(); private final TreeSet<Integer> mPreviousNumbers = new TreeSet<Integer>(); private final Random mRandom = new Random(); private int mPrevious; /** * Constructor of <code>Shuffler</code> */ public Shuffler() { super(); } /** * @param interval The length the queue * @return The position of the next track to play */ public int nextInt(final int interval) { int next; do { next = mRandom.nextInt(interval); } while (next == mPrevious && interval > 1 && !mPreviousNumbers.contains(Integer.valueOf(next))); mPrevious = next; mHistoryOfNumbers.add(mPrevious); mPreviousNumbers.add(mPrevious); cleanUpHistory(); return next; } /** * Removes old tracks and cleans up the history preparing for new tracks * to be added to the mapping */ private void cleanUpHistory() { if (!mHistoryOfNumbers.isEmpty() && mHistoryOfNumbers.size() >= MAX_HISTORY_SIZE) { for (int i = 0; i < Math.max(1, MAX_HISTORY_SIZE / 2); i++) { mPreviousNumbers.remove(mHistoryOfNumbers.removeFirst()); } } } } ; private static final class MultiPlayer implements MediaPlayer.OnErrorListener, MediaPlayer.OnCompletionListener { private final WeakReference<PlayerService> mService; private MediaPlayer mCurrentMediaPlayer = new MediaPlayer(); private MediaPlayer mNextMediaPlayer; private Handler mHandler; private boolean mIsInitialized = false; /** * Constructor of <code>MultiPlayer</code> */ public MultiPlayer(final PlayerService service) { mService = new WeakReference<PlayerService>(service); mCurrentMediaPlayer.setWakeMode(mService.get(), PowerManager.PARTIAL_WAKE_LOCK); } /** * @param path The path of the file, or the http/rtsp URL of the stream * you want to play */ public void setDataSource(final String path) { mIsInitialized = setDataSourceImpl(mCurrentMediaPlayer, path); if (mIsInitialized) { setNextDataSource(null); } } /** * @param player The {@link MediaPlayer} to use * @param path The path of the file, or the http/rtsp URL of the stream * you want to play * @return True if the <code>player</code> has been prepared and is * ready to play, false otherwise */ private boolean setDataSourceImpl(final MediaPlayer player, final String path) { try { player.reset(); player.setOnPreparedListener(null); if (path.startsWith("content://")) { player.setDataSource(mService.get(), Uri.parse(path)); } else { player.setDataSource(path); } player.setAudioStreamType(AudioManager.STREAM_MUSIC); player.prepare(); } catch (final IOException todo) { // TODO: notify the user why the file couldn't be opened return false; } catch (final IllegalArgumentException todo) { // TODO: notify the user why the file couldn't be opened return false; } player.setOnCompletionListener(this); player.setOnErrorListener(this); final Intent intent = new Intent(AudioEffect.ACTION_OPEN_AUDIO_EFFECT_CONTROL_SESSION); intent.putExtra(AudioEffect.EXTRA_AUDIO_SESSION, getAudioSessionId()); intent.putExtra(AudioEffect.EXTRA_PACKAGE_NAME, mService.get().getPackageName()); mService.get().sendBroadcast(intent); return true; } /** * Set the MediaPlayer to start when this MediaPlayer finishes playback. * * @param path The path of the file, or the http/rtsp URL of the stream * you want to play */ public void setNextDataSource(final String path) { try { mCurrentMediaPlayer.setNextMediaPlayer(null); } catch (IllegalArgumentException e) { Log.i(TAG, "Next media player is current one, continuing"); } catch (IllegalStateException e) { Log.e(TAG, "Media player not initialized!"); return; } if (mNextMediaPlayer != null) { mNextMediaPlayer.release(); mNextMediaPlayer = null; } if (path == null) { return; } mNextMediaPlayer = new MediaPlayer(); mNextMediaPlayer.setWakeMode(mService.get(), PowerManager.PARTIAL_WAKE_LOCK); mNextMediaPlayer.setAudioSessionId(getAudioSessionId()); if (setDataSourceImpl(mNextMediaPlayer, path)) { mCurrentMediaPlayer.setNextMediaPlayer(mNextMediaPlayer); } else { if (mNextMediaPlayer != null) { mNextMediaPlayer.release(); mNextMediaPlayer = null; } } } /** * Sets the handler * * @param handler The handler to use */ public void setHandler(final Handler handler) { mHandler = handler; } /** * @return True if the player is ready to go, false otherwise */ public boolean isInitialized() { return mIsInitialized; } /** * Starts or resumes playback. */ public void start() { mCurrentMediaPlayer.start(); } /** * Resets the MediaPlayer to its uninitialized state. */ public void stop() { mCurrentMediaPlayer.reset(); mIsInitialized = false; } /** * Releases resources associated with this MediaPlayer object. */ public void release() { stop(); mCurrentMediaPlayer.release(); } /** * Pauses playback. Call start() to resume. */ public void pause() { mCurrentMediaPlayer.pause(); } /** * Gets the duration of the file. * * @return The duration in milliseconds */ public long duration() { return mCurrentMediaPlayer.getDuration(); } /** * Gets the current playback position. * * @return The current position in milliseconds */ public long position() { return mCurrentMediaPlayer.getCurrentPosition(); } /** * Gets the current playback position. * * @param whereto The offset in milliseconds from the start to seek to * @return The offset in milliseconds from the start to seek to */ public long seek(final long whereto) { mCurrentMediaPlayer.seekTo((int) whereto); return whereto; } /** * Sets the volume on this player. * * @param vol Left and right volume scalar */ public void setVolume(final float vol) { mCurrentMediaPlayer.setVolume(vol, vol); } /** * Returns the audio session ID. * * @return The current audio session ID. */ public int getAudioSessionId() { return mCurrentMediaPlayer.getAudioSessionId(); } /** * Sets the audio session ID. * * @param sessionId The audio session ID */ public void setAudioSessionId(final int sessionId) { mCurrentMediaPlayer.setAudioSessionId(sessionId); } /** * {@inheritDoc} */ @Override public boolean onError(final MediaPlayer mp, final int what, final int extra) { switch (what) { case MediaPlayer.MEDIA_ERROR_SERVER_DIED: mIsInitialized = false; mCurrentMediaPlayer.release(); mCurrentMediaPlayer = new MediaPlayer(); mCurrentMediaPlayer.setWakeMode(mService.get(), PowerManager.PARTIAL_WAKE_LOCK); mHandler.sendMessageDelayed(mHandler.obtainMessage(SERVER_DIED), 2000); return true; default: break; } return false; } /** * {@inheritDoc} */ @Override public void onCompletion(final MediaPlayer mp) { if (mp == mCurrentMediaPlayer && mNextMediaPlayer != null) { mCurrentMediaPlayer.release(); mCurrentMediaPlayer = mNextMediaPlayer; mNextMediaPlayer = null; mHandler.sendEmptyMessage(TRACK_WENT_TO_NEXT); } else { mService.get().mWakeLock.acquire(30000); mHandler.sendEmptyMessage(TRACK_ENDED); mHandler.sendEmptyMessage(RELEASE_WAKELOCK); } } } private static final class ServiceStub extends IPlayerService.Stub { private final WeakReference<PlayerService> mService; private ServiceStub(final PlayerService service) { mService = new WeakReference<PlayerService>(service); } /** * {@inheritDoc} */ @Override public void openFile(final String path) throws RemoteException { mService.get().openFile(path); } /** * {@inheritDoc} */ @Override public void open(final long[] list, final int position) throws RemoteException { mService.get().open(list, position); } /** * {@inheritDoc} */ @Override public void stop() throws RemoteException { mService.get().stop(); } /** * {@inheritDoc} */ @Override public void pause() throws RemoteException { mService.get().pause(); } /** * {@inheritDoc} */ @Override public void play() throws RemoteException { mService.get().play(); } /** * {@inheritDoc} */ @Override public void prev() throws RemoteException { mService.get().prev(); } /** * {@inheritDoc} */ @Override public void next() throws RemoteException { mService.get().gotoNext(true); } /** * {@inheritDoc} */ @Override public void enqueue(final long[] list, final int action) throws RemoteException { mService.get().enqueue(list, action); } /** * {@inheritDoc} */ @Override public void moveQueueItem(final int from, final int to) throws RemoteException { mService.get().moveQueueItem(from, to); } /** * {@inheritDoc} */ @Override public void toggleFavorite() throws RemoteException { mService.get().toggleFavorite(); } /** * {@inheritDoc} */ @Override public void refresh() throws RemoteException { mService.get().refresh(); } /** * {@inheritDoc} */ @Override public boolean isFavorite() throws RemoteException { return mService.get().isFavorite(); } /** * {@inheritDoc} */ @Override public boolean isPlaying() throws RemoteException { return mService.get().isPlaying(); } /** * {@inheritDoc} */ @Override public long[] getQueue() throws RemoteException { return mService.get().getQueue(); } /** * {@inheritDoc} */ @Override public long duration() throws RemoteException { return mService.get().duration(); } /** * {@inheritDoc} */ @Override public long position() throws RemoteException { return mService.get().position(); } /** * {@inheritDoc} */ @Override public long seek(final long position) throws RemoteException { return mService.get().seek(position); } /** * {@inheritDoc} */ @Override public long getAudioId() throws RemoteException { return mService.get().getAudioId(); } /** * {@inheritDoc} */ @Override public long getArtistId() throws RemoteException { return mService.get().getArtistId(); } /** * {@inheritDoc} */ @Override public long getAlbumId() throws RemoteException { return mService.get().getAlbumId(); } /** * {@inheritDoc} */ @Override public String getArtistName() throws RemoteException { return mService.get().getArtistName(); } /** * {@inheritDoc} */ @Override public String getTrackName() throws RemoteException { return mService.get().getTrackName(); } /** * {@inheritDoc} */ @Override public String getAlbumName() throws RemoteException { return mService.get().getAlbumName(); } /** * {@inheritDoc} */ @Override public String getPath() throws RemoteException { return mService.get().getPath(); } /** * {@inheritDoc} */ @Override public int getQueuePosition() throws RemoteException { return mService.get().getQueuePosition(); } /** * {@inheritDoc} */ @Override public void setQueuePosition(final int index) throws RemoteException { mService.get().setQueuePosition(index); } /** * {@inheritDoc} */ @Override public int getShuffleMode() throws RemoteException { return mService.get().getShuffleMode(); } /** * {@inheritDoc} */ @Override public void setShuffleMode(final int shufflemode) throws RemoteException { mService.get().setShuffleMode(shufflemode); } /** * {@inheritDoc} */ @Override public int getRepeatMode() throws RemoteException { return mService.get().getRepeatMode(); } /** * {@inheritDoc} */ @Override public void setRepeatMode(final int repeatmode) throws RemoteException { mService.get().setRepeatMode(repeatmode); } /** * {@inheritDoc} */ @Override public int removeTracks(final int first, final int last) throws RemoteException { return mService.get().removeTracks(first, last); } /** * {@inheritDoc} */ @Override public int removeTrack(final long id) throws RemoteException { return mService.get().removeTrack(id); } /** * {@inheritDoc} */ @Override public int getMediaMountedCount() throws RemoteException { return mService.get().getMediaMountedCount(); } /** * {@inheritDoc} */ @Override public int getAudioSessionId() throws RemoteException { return mService.get().getAudioSessionId(); } } /** * Used to determine if the device is running * Jelly Bean MR2 (Android 4.3) or greater * * @return True if the device is running Jelly Bean MR2 or greater, * false otherwise */ public static final boolean hasJellyBeanMR2() { return Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2; } }