Java tutorial
/* * Copyright (C) 2008 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package br.com.viniciuscr.notification2android.mediaPlayer; import android.app.Activity; import android.content.ComponentName; import android.content.ContentResolver; import android.content.ContentUris; import android.content.ContentValues; import android.content.Context; import android.content.ContextWrapper; import android.content.Intent; import android.content.ServiceConnection; import android.content.SharedPreferences; import android.content.SharedPreferences.Editor; import android.content.res.Resources; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.ColorFilter; import android.graphics.ColorMatrix; import android.graphics.ColorMatrixColorFilter; import android.graphics.Matrix; import android.graphics.Paint; import android.graphics.PixelFormat; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.ParcelFileDescriptor; import android.provider.MediaStore; import android.support.v4.content.SharedPreferencesCompat; import android.text.format.Time; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.SubMenu; import android.view.View; import android.view.Window; import android.widget.TabWidget; import android.widget.TextView; import android.widget.Toast; import java.io.File; import java.io.FileDescriptor; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.Formatter; import java.util.HashMap; import java.util.Locale; import br.com.viniciuscr.notification2android.R; public class MusicUtils { private static final String TAG = "MusicUtils"; public interface Defs { public final static int OPEN_URL = 0; public final static int ADD_TO_PLAYLIST = 1; public final static int USE_AS_RINGTONE = 2; public final static int PLAYLIST_SELECTED = 3; public final static int NEW_PLAYLIST = 4; public final static int PLAY_SELECTION = 5; public final static int GOTO_START = 6; public final static int GOTO_PLAYBACK = 7; public final static int PARTY_SHUFFLE = 8; public final static int SHUFFLE_ALL = 9; public final static int DELETE_ITEM = 10; public final static int SCAN_DONE = 11; public final static int QUEUE = 12; public final static int EFFECTS_PANEL = 13; public final static int CHILD_MENU_BASE = 14; // this should be the last item } public static String makeAlbumsLabel(Context context, int numalbums, int numsongs, boolean isUnknown) { // There are two formats for the albums/songs information: // "N Song(s)" - used for unknown artist/album // "N Album(s)" - used for known albums StringBuilder songs_albums = new StringBuilder(); Resources r = context.getResources(); if (isUnknown) { if (numsongs == 1) { songs_albums.append(context.getString(R.string.onesong)); } else { String f = r.getQuantityText(R.plurals.Nsongs, numsongs).toString(); sFormatBuilder.setLength(0); sFormatter.format(f, Integer.valueOf(numsongs)); songs_albums.append(sFormatBuilder); } } else { String f = r.getQuantityText(R.plurals.Nalbums, numalbums).toString(); sFormatBuilder.setLength(0); sFormatter.format(f, Integer.valueOf(numalbums)); songs_albums.append(sFormatBuilder); songs_albums.append(context.getString(R.string.albumsongseparator)); } return songs_albums.toString(); } /** * This is now only used for the query screen */ public static String makeAlbumsSongsLabel(Context context, int numalbums, int numsongs, boolean isUnknown) { // There are several formats for the albums/songs information: // "1 Song" - used if there is only 1 song // "N Songs" - used for the "unknown artist" item // "1 Album"/"N Songs" // "N Album"/"M Songs" // Depending on locale, these may need to be further subdivided StringBuilder songs_albums = new StringBuilder(); if (numsongs == 1) { songs_albums.append(context.getString(R.string.onesong)); } else { Resources r = context.getResources(); if (!isUnknown) { String f = r.getQuantityText(R.plurals.Nalbums, numalbums).toString(); sFormatBuilder.setLength(0); sFormatter.format(f, Integer.valueOf(numalbums)); songs_albums.append(sFormatBuilder); songs_albums.append(context.getString(R.string.albumsongseparator)); } String f = r.getQuantityText(R.plurals.Nsongs, numsongs).toString(); sFormatBuilder.setLength(0); sFormatter.format(f, Integer.valueOf(numsongs)); songs_albums.append(sFormatBuilder); } return songs_albums.toString(); } public static IMediaPlaybackService sService = null; private static HashMap<Context, ServiceBinder> sConnectionMap = new HashMap<Context, ServiceBinder>(); public static class ServiceToken { ContextWrapper mWrappedContext; ServiceToken(ContextWrapper context) { mWrappedContext = context; } } public static ServiceToken bindToService(Activity context) { return bindToService(context, null); } public static ServiceToken bindToService(Activity context, ServiceConnection callback) { Activity realActivity = context.getParent(); if (realActivity == null) { realActivity = context; } ContextWrapper cw = new ContextWrapper(realActivity); cw.startService(new Intent(cw, MediaPlaybackService.class)); ServiceBinder sb = new ServiceBinder(callback); if (cw.bindService((new Intent()).setClass(cw, MediaPlaybackService.class), sb, 0)) { sConnectionMap.put(cw, sb); return new ServiceToken(cw); } Log.e("Music", "Failed to bind to service"); return null; } public static void unbindFromService(ServiceToken token) { if (token == null) { Log.e("MusicUtils", "Trying to unbind with null token"); return; } ContextWrapper cw = token.mWrappedContext; ServiceBinder sb = sConnectionMap.remove(cw); if (sb == null) { Log.e("MusicUtils", "Trying to unbind for unknown Context"); return; } cw.unbindService(sb); if (sConnectionMap.isEmpty()) { // presumably there is nobody interested in the service at this point, // so don't hang on to the ServiceConnection sService = null; } } private static class ServiceBinder implements ServiceConnection { ServiceConnection mCallback; ServiceBinder(ServiceConnection callback) { mCallback = callback; } public void onServiceConnected(ComponentName className, android.os.IBinder service) { //sService = IMediaPlaybackService.asInterface(service); sService = (IMediaPlaybackService) service; initAlbumArtCache(); if (mCallback != null) { mCallback.onServiceConnected(className, service); } } public void onServiceDisconnected(ComponentName className) { if (mCallback != null) { mCallback.onServiceDisconnected(className); } sService = null; } } public static long getCurrentAlbumId() { if (sService != null) { return sService.getAlbumId(); } return -1; } public static long getCurrentArtistId() { if (MusicUtils.sService != null) { return sService.getArtistId(); } return -1; } public static long getCurrentAudioId() { if (MusicUtils.sService != null) { return sService.getAudioId(); } return -1; } public static int getCurrentShuffleMode() { int mode = MediaPlaybackService.SHUFFLE_NONE; if (sService != null) { mode = sService.getShuffleMode(); } return mode; } public static void togglePartyShuffle() { if (sService != null) { int shuffle = getCurrentShuffleMode(); if (shuffle == MediaPlaybackService.SHUFFLE_AUTO) { sService.setShuffleMode(MediaPlaybackService.SHUFFLE_NONE); } else { sService.setShuffleMode(MediaPlaybackService.SHUFFLE_AUTO); } } } public static void setPartyShuffleMenuIcon(Menu menu) { MenuItem item = menu.findItem(Defs.PARTY_SHUFFLE); if (item != null) { int shuffle = MusicUtils.getCurrentShuffleMode(); if (shuffle == MediaPlaybackService.SHUFFLE_AUTO) { item.setIcon(R.drawable.ic_menu_party_shuffle); item.setTitle(R.string.party_shuffle_off); } else { item.setIcon(R.drawable.ic_menu_party_shuffle); item.setTitle(R.string.party_shuffle); } } } /* * Returns true if a file is currently opened for playback (regardless * of whether it's playing or paused). */ public static boolean isMusicLoaded() { if (MusicUtils.sService != null) { return sService.getPath() != null; } return false; } private final static long[] sEmptyList = new long[0]; public static long[] getSongListForCursor(Cursor cursor) { if (cursor == null) { return sEmptyList; } int len = cursor.getCount(); long[] list = new long[len]; cursor.moveToFirst(); int colidx = -1; try { colidx = cursor.getColumnIndexOrThrow(MediaStore.Audio.Playlists.Members.AUDIO_ID); } catch (IllegalArgumentException ex) { colidx = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media._ID); } for (int i = 0; i < len; i++) { list[i] = cursor.getLong(colidx); cursor.moveToNext(); } return list; } public static long[] getSongListForArtist(Context context, long id) { final String[] ccols = new String[] { MediaStore.Audio.Media._ID }; String where = MediaStore.Audio.Media.ARTIST_ID + "=" + id + " AND " + MediaStore.Audio.Media.IS_MUSIC + "=1"; Cursor cursor = query(context, MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, ccols, where, null, MediaStore.Audio.Media.ALBUM_KEY + "," + MediaStore.Audio.Media.TRACK); if (cursor != null) { long[] list = getSongListForCursor(cursor); cursor.close(); return list; } return sEmptyList; } public static long[] getSongListForAlbum(Context context, long id) { final String[] ccols = new String[] { MediaStore.Audio.Media._ID }; String where = MediaStore.Audio.Media.ALBUM_ID + "=" + id + " AND " + MediaStore.Audio.Media.IS_MUSIC + "=1"; Cursor cursor = query(context, MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, ccols, where, null, MediaStore.Audio.Media.TRACK); if (cursor != null) { long[] list = getSongListForCursor(cursor); cursor.close(); return list; } return sEmptyList; } public static long[] getSongListForPlaylist(Context context, long plid) { final String[] ccols = new String[] { MediaStore.Audio.Playlists.Members.AUDIO_ID }; Cursor cursor = query(context, MediaStore.Audio.Playlists.Members.getContentUri("external", plid), ccols, null, null, MediaStore.Audio.Playlists.Members.DEFAULT_SORT_ORDER); if (cursor != null) { long[] list = getSongListForCursor(cursor); cursor.close(); return list; } return sEmptyList; } public static void playPlaylist(Context context, long plid) { long[] list = getSongListForPlaylist(context, plid); if (list != null) { playAll(context, list, -1, false); } } public static long[] getAllSongs(Context context) { Cursor c = query(context, MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, new String[] { MediaStore.Audio.Media._ID }, MediaStore.Audio.Media.IS_MUSIC + "=1", null, null); try { if (c == null || c.getCount() == 0) { return null; } int len = c.getCount(); long[] list = new long[len]; for (int i = 0; i < len; i++) { c.moveToNext(); list[i] = c.getLong(0); } return list; } finally { if (c != null) { c.close(); } } } /** * Fills out the given submenu with items for "new playlist" and * any existing playlists. When the user selects an item, the * application will receive PLAYLIST_SELECTED with the Uri of * the selected playlist, NEW_PLAYLIST if a new playlist * should be created, and QUEUE if the "current playlist" was * selected. * * @param context The context to use for creating the menu items * @param sub The submenu to add the items to. */ public static void makePlaylistMenu(Context context, SubMenu sub) { String[] cols = new String[] { MediaStore.Audio.Playlists._ID, MediaStore.Audio.Playlists.NAME }; ContentResolver resolver = context.getContentResolver(); if (resolver == null) { System.out.println("resolver = null"); } else { String whereclause = MediaStore.Audio.Playlists.NAME + " != ''"; Cursor cur = resolver.query(MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI, cols, whereclause, null, MediaStore.Audio.Playlists.NAME); sub.clear(); sub.add(1, Defs.QUEUE, 0, R.string.queue); sub.add(1, Defs.NEW_PLAYLIST, 0, R.string.new_playlist); if (cur != null && cur.getCount() > 0) { //sub.addSeparator(1, 0); cur.moveToFirst(); while (!cur.isAfterLast()) { Intent intent = new Intent(); intent.putExtra("playlist", cur.getLong(0)); // if (cur.getInt(0) == mLastPlaylistSelected) { // sub.add(0, MusicBaseActivity.PLAYLIST_SELECTED, cur.getString(1)).setIntent(intent); // } else { sub.add(1, Defs.PLAYLIST_SELECTED, 0, cur.getString(1)).setIntent(intent); // } cur.moveToNext(); } } if (cur != null) { cur.close(); } } } public static void clearPlaylist(Context context, int plid) { Uri uri = MediaStore.Audio.Playlists.Members.getContentUri("external", plid); context.getContentResolver().delete(uri, null, null); return; } public static void deleteTracks(Context context, long[] list) { String[] cols = new String[] { MediaStore.Audio.Media._ID, MediaStore.Audio.Media.DATA, MediaStore.Audio.Media.ALBUM_ID }; StringBuilder where = new StringBuilder(); where.append(MediaStore.Audio.Media._ID + " IN ("); for (int i = 0; i < list.length; i++) { where.append(list[i]); if (i < list.length - 1) { where.append(","); } } where.append(")"); Cursor c = query(context, MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, cols, where.toString(), null, null); if (c != null) { // step 1: remove selected tracks from the current playlist, as well // as from the album art cache c.moveToFirst(); while (!c.isAfterLast()) { // remove from current playlist long id = c.getLong(0); sService.removeTrack(id); // remove from album art cache long artIndex = c.getLong(2); synchronized (sArtCache) { sArtCache.remove(artIndex); } c.moveToNext(); } // step 2: remove selected tracks from the database context.getContentResolver().delete(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, where.toString(), null); // step 3: remove files from card c.moveToFirst(); while (!c.isAfterLast()) { String name = c.getString(1); File f = new File(name); try { // File.delete can throw a security exception if (!f.delete()) { // I'm not sure if we'd ever get here (deletion would // have to fail, but no exception thrown) Log.e("MusicUtils", "Failed to delete file " + name); } c.moveToNext(); } catch (SecurityException ex) { c.moveToNext(); } } c.close(); } String message = context.getResources().getQuantityString(R.plurals.NNNtracksdeleted, list.length, Integer.valueOf(list.length)); Toast.makeText(context, message, Toast.LENGTH_SHORT).show(); // We deleted a number of tracks, which could affect any number of things // in the media content domain, so update everything. context.getContentResolver().notifyChange(Uri.parse("content://media"), null); } public static void addToCurrentPlaylist(Context context, long[] list) { if (sService == null) { return; } sService.enqueue(list, MediaPlaybackService.LAST); String message = context.getResources().getQuantityString(R.plurals.NNNtrackstoplaylist, list.length, Integer.valueOf(list.length)); Toast.makeText(context, message, Toast.LENGTH_SHORT).show(); } private static ContentValues[] sContentValuesCache = null; /** * @param ids The source array containing all the ids to be added to the playlist * @param offset Where in the 'ids' array we start reading * @param len How many items to copy during this pass * @param base The play order offset to use for this pass */ private static void makeInsertItems(long[] ids, int offset, int len, int base) { // adjust 'len' if would extend beyond the end of the source array if (offset + len > ids.length) { len = ids.length - offset; } // allocate the ContentValues array, or reallocate if it is the wrong size if (sContentValuesCache == null || sContentValuesCache.length != len) { sContentValuesCache = new ContentValues[len]; } // fill in the ContentValues array with the right values for this pass for (int i = 0; i < len; i++) { if (sContentValuesCache[i] == null) { sContentValuesCache[i] = new ContentValues(); } sContentValuesCache[i].put(MediaStore.Audio.Playlists.Members.PLAY_ORDER, base + offset + i); sContentValuesCache[i].put(MediaStore.Audio.Playlists.Members.AUDIO_ID, ids[offset + i]); } } public static void addToPlaylist(Context context, long[] ids, long playlistid) { if (ids == null) { // this shouldn't happen (the menuitems shouldn't be visible // unless the selected item represents something playable Log.e("MusicBase", "ListSelection null"); } else { int size = ids.length; ContentResolver resolver = context.getContentResolver(); // need to determine the number of items currently in the playlist, // so the play_order field can be maintained. String[] cols = new String[] { "count(*)" }; Uri uri = MediaStore.Audio.Playlists.Members.getContentUri("external", playlistid); Cursor cur = resolver.query(uri, cols, null, null, null); cur.moveToFirst(); int base = cur.getInt(0); cur.close(); int numinserted = 0; for (int i = 0; i < size; i += 1000) { makeInsertItems(ids, i, 1000, base); numinserted += resolver.bulkInsert(uri, sContentValuesCache); } String message = context.getResources().getQuantityString(R.plurals.NNNtrackstoplaylist, numinserted, numinserted); Toast.makeText(context, message, Toast.LENGTH_SHORT).show(); //mLastPlaylistSelected = playlistid; } } public static Cursor query(Context context, Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder, int limit) { try { ContentResolver resolver = context.getContentResolver(); if (resolver == null) { return null; } if (limit > 0) { uri = uri.buildUpon().appendQueryParameter("limit", "" + limit).build(); } return resolver.query(uri, projection, selection, selectionArgs, sortOrder); } catch (UnsupportedOperationException ex) { return null; } } public static Cursor query(Context context, Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { return query(context, uri, projection, selection, selectionArgs, sortOrder, 0); } public static boolean isMediaScannerScanning(Context context) { boolean result = false; Cursor cursor = query(context, MediaStore.getMediaScannerUri(), new String[] { MediaStore.MEDIA_SCANNER_VOLUME }, null, null, null); if (cursor != null) { if (cursor.getCount() == 1) { cursor.moveToFirst(); result = "external".equals(cursor.getString(0)); } cursor.close(); } return result; } public static void setSpinnerState(Activity a) { if (isMediaScannerScanning(a)) { // start the progress spinner a.getWindow().setFeatureInt(Window.FEATURE_INDETERMINATE_PROGRESS, Window.PROGRESS_INDETERMINATE_ON); a.getWindow().setFeatureInt(Window.FEATURE_INDETERMINATE_PROGRESS, Window.PROGRESS_VISIBILITY_ON); } else { // stop the progress spinner a.getWindow().setFeatureInt(Window.FEATURE_INDETERMINATE_PROGRESS, Window.PROGRESS_VISIBILITY_OFF); } } private static String mLastSdStatus; static protected Uri getContentURIForPath(String path) { return Uri.fromFile(new File(path)); } /* Try to use String.format() as little as possible, because it creates a * new Formatter every time you call it, which is very inefficient. * Reusing an existing Formatter more than tripled the speed of * makeTimeString(). * This Formatter/StringBuilder are also used by makeAlbumSongsLabel() */ private static StringBuilder sFormatBuilder = new StringBuilder(); private static Formatter sFormatter = new Formatter(sFormatBuilder, Locale.getDefault()); private static final Object[] sTimeArgs = new Object[5]; public static String makeTimeString(Context context, long secs) { String durationformat = context .getString(secs < 3600 ? R.string.durationformatshort : R.string.durationformatlong); /* Provide multiple arguments so the format can be changed easily * by modifying the xml. */ sFormatBuilder.setLength(0); final Object[] timeArgs = sTimeArgs; timeArgs[0] = secs / 3600; timeArgs[1] = secs / 60; timeArgs[2] = (secs / 60) % 60; timeArgs[3] = secs; timeArgs[4] = secs % 60; return sFormatter.format(durationformat, timeArgs).toString(); } public static void shuffleAll(Context context, Cursor cursor) { playAll(context, cursor, 0, true); } public static void playAll(Context context, Cursor cursor) { playAll(context, cursor, 0, false); } public static void playAll(Context context, Cursor cursor, int position) { playAll(context, cursor, position, false); } public static void playAll(Context context, long[] list, int position) { playAll(context, list, position, false); } private static void playAll(Context context, Cursor cursor, int position, boolean force_shuffle) { long[] list = getSongListForCursor(cursor); playAll(context, list, position, force_shuffle); } private static void playAll(Context context, long[] list, int position, boolean force_shuffle) { if (list.length == 0 || sService == null) { Log.d("MusicUtils", "attempt to play empty song list"); // Don't try to play empty playlists. Nothing good will come of it. // String message = context.getString(R.string.emptyplaylist, list.length); String message = "Lista vazia, Fdeu"; Toast.makeText(context, message, Toast.LENGTH_SHORT).show(); return; } if (force_shuffle) { sService.setShuffleMode(MediaPlaybackService.SHUFFLE_NORMAL); } long curid = sService.getAudioId(); int curpos = sService.getQueuePosition(); if (position != -1 && curpos == position && curid == list[position]) { // The selected file is the file that's currently playing; // figure out if we need to restart with a new playlist, // or just launch the playback activity. long[] playlist = sService.getQueue(); if (Arrays.equals(list, playlist)) { // we don't need to set a new list, but we should resume playback if needed sService.play(); return; // the 'finally' block will still run } } if (position < 0) { position = 0; } sService.open(list, force_shuffle ? -1 : position); sService.play(); Intent intent = new Intent("com.android.music.PLAYBACK_VIEWER").setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); context.startActivity(intent); } public static void clearQueue() { sService.removeTracks(0, Integer.MAX_VALUE); } // A really simple BitmapDrawable-like class, that doesn't do // scaling, dithering or filtering. private static class FastBitmapDrawable extends Drawable { private Bitmap mBitmap; public FastBitmapDrawable(Bitmap b) { mBitmap = b; } @Override public void draw(Canvas canvas) { canvas.drawBitmap(mBitmap, 0, 0, null); } @Override public int getOpacity() { return PixelFormat.OPAQUE; } @Override public void setAlpha(int alpha) { } @Override public void setColorFilter(ColorFilter cf) { } } private static int sArtId = -2; private static Bitmap mCachedBit = null; private static final BitmapFactory.Options sBitmapOptionsCache = new BitmapFactory.Options(); private static final BitmapFactory.Options sBitmapOptions = new BitmapFactory.Options(); private static final Uri sArtworkUri = Uri.parse("content://media/external/audio/albumart"); private static final HashMap<Long, Drawable> sArtCache = new HashMap<Long, Drawable>(); private static int sArtCacheId = -1; static { // for the cache, // 565 is faster to decode and display // and we don't want to dither here because the image will be scaled down later sBitmapOptionsCache.inPreferredConfig = Bitmap.Config.RGB_565; sBitmapOptionsCache.inDither = false; sBitmapOptions.inPreferredConfig = Bitmap.Config.RGB_565; sBitmapOptions.inDither = false; } public static void initAlbumArtCache() { int id = sService.getMediaMountedCount(); if (id != sArtCacheId) { clearAlbumArtCache(); sArtCacheId = id; } } public static void clearAlbumArtCache() { synchronized (sArtCache) { sArtCache.clear(); } } public static Drawable getCachedArtwork(Context context, long artIndex, BitmapDrawable defaultArtwork) { Drawable d = null; synchronized (sArtCache) { d = sArtCache.get(artIndex); } if (d == null) { d = defaultArtwork; final Bitmap icon = defaultArtwork.getBitmap(); int w = icon.getWidth(); int h = icon.getHeight(); Bitmap b = MusicUtils.getArtworkQuick(context, artIndex, w, h); if (b != null) { d = new FastBitmapDrawable(b); synchronized (sArtCache) { // the cache may have changed since we checked Drawable value = sArtCache.get(artIndex); if (value == null) { sArtCache.put(artIndex, d); } else { d = value; } } } } return d; } // Get album art for specified album. This method will not try to // fall back to getting artwork directly from the file, nor will // it attempt to repair the database. private static Bitmap getArtworkQuick(Context context, long album_id, int w, int h) { // NOTE: There is in fact a 1 pixel border on the right side in the ImageView // used to display this drawable. Take it into account now, so we don't have to // scale later. w -= 1; ContentResolver res = context.getContentResolver(); Uri uri = ContentUris.withAppendedId(sArtworkUri, album_id); if (uri != null) { ParcelFileDescriptor fd = null; try { fd = res.openFileDescriptor(uri, "r"); int sampleSize = 1; // Compute the closest power-of-two scale factor // and pass that to sBitmapOptionsCache.inSampleSize, which will // result in faster decoding and better quality sBitmapOptionsCache.inJustDecodeBounds = true; BitmapFactory.decodeFileDescriptor(fd.getFileDescriptor(), null, sBitmapOptionsCache); int nextWidth = sBitmapOptionsCache.outWidth >> 1; int nextHeight = sBitmapOptionsCache.outHeight >> 1; while (nextWidth > w && nextHeight > h) { sampleSize <<= 1; nextWidth >>= 1; nextHeight >>= 1; } sBitmapOptionsCache.inSampleSize = sampleSize; sBitmapOptionsCache.inJustDecodeBounds = false; Bitmap b = BitmapFactory.decodeFileDescriptor(fd.getFileDescriptor(), null, sBitmapOptionsCache); if (b != null) { // finally rescale to exactly the size we need if (sBitmapOptionsCache.outWidth != w || sBitmapOptionsCache.outHeight != h) { Bitmap tmp = Bitmap.createScaledBitmap(b, w, h, true); // Bitmap.createScaledBitmap() can return the same bitmap if (tmp != b) b.recycle(); b = tmp; } } return b; } catch (FileNotFoundException e) { } finally { try { if (fd != null) fd.close(); } catch (IOException e) { } } } return null; } /** * Get album art for specified album. You should not pass in the album id * for the "unknown" album here (use -1 instead) * This method always returns the default album art icon when no album art is found. */ public static Bitmap getArtwork(Context context, long song_id, long album_id) { return getArtwork(context, song_id, album_id, true); } /** * Get album art for specified album. You should not pass in the album id * for the "unknown" album here (use -1 instead) */ public static Bitmap getArtwork(Context context, long song_id, long album_id, boolean allowdefault) { if (album_id < 0) { // This is something that is not in the database, so get the album art directly // from the file. if (song_id >= 0) { Bitmap bm = getArtworkFromFile(context, song_id, -1); if (bm != null) { return bm; } } if (allowdefault) { return getDefaultArtwork(context); } return null; } ContentResolver res = context.getContentResolver(); Uri uri = ContentUris.withAppendedId(sArtworkUri, album_id); if (uri != null) { InputStream in = null; try { in = res.openInputStream(uri); return BitmapFactory.decodeStream(in, null, sBitmapOptions); } catch (FileNotFoundException ex) { // The album art thumbnail does not actually exist. Maybe the user deleted it, or // maybe it never existed to begin with. Bitmap bm = getArtworkFromFile(context, song_id, album_id); if (bm != null) { if (bm.getConfig() == null) { bm = bm.copy(Bitmap.Config.RGB_565, false); if (bm == null && allowdefault) { return getDefaultArtwork(context); } } } else if (allowdefault) { bm = getDefaultArtwork(context); } return bm; } finally { try { if (in != null) { in.close(); } } catch (IOException ex) { } } } return null; } // get album art for specified file private static final String sExternalMediaUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI.toString(); private static Bitmap getArtworkFromFile(Context context, long songid, long albumid) { Bitmap bm = null; byte[] art = null; String path = null; if (albumid < 0 && songid < 0) { throw new IllegalArgumentException("Must specify an album or a song id"); } try { if (albumid < 0) { Uri uri = Uri.parse("content://media/external/audio/media/" + songid + "/albumart"); ParcelFileDescriptor pfd = context.getContentResolver().openFileDescriptor(uri, "r"); if (pfd != null) { FileDescriptor fd = pfd.getFileDescriptor(); bm = BitmapFactory.decodeFileDescriptor(fd); } } else { Uri uri = ContentUris.withAppendedId(sArtworkUri, albumid); ParcelFileDescriptor pfd = context.getContentResolver().openFileDescriptor(uri, "r"); if (pfd != null) { FileDescriptor fd = pfd.getFileDescriptor(); bm = BitmapFactory.decodeFileDescriptor(fd); } } } catch (IllegalStateException | FileNotFoundException ex) { } if (bm != null) { mCachedBit = bm; } return bm; } private static Bitmap getDefaultArtwork(Context context) { BitmapFactory.Options opts = new BitmapFactory.Options(); opts.inPreferredConfig = Bitmap.Config.ARGB_8888; return BitmapFactory.decodeResource(context.getResources(), R.drawable.albumart_mp_unknown); } static int getIntPref(Context context, String name, int def) { SharedPreferences prefs = context.getSharedPreferences(context.getPackageName(), Context.MODE_PRIVATE); return prefs.getInt(name, def); } static void setIntPref(Context context, String name, int value) { SharedPreferences prefs = context.getSharedPreferences(context.getPackageName(), Context.MODE_PRIVATE); Editor ed = prefs.edit(); ed.putInt(name, value); SharedPreferencesCompat.EditorCompat.getInstance().apply(ed); } static int sActiveTabIndex = -1; static boolean updateButtonBar(Activity a, int highlight) { final TabWidget ll = (TabWidget) a.findViewById(R.id.buttonbar); boolean withtabs = false; Intent intent = a.getIntent(); if (intent != null) { withtabs = intent.getBooleanExtra("withtabs", false); } if (highlight == 0 || !withtabs) { ll.setVisibility(View.GONE); return withtabs; } else if (withtabs) { ll.setVisibility(View.VISIBLE); } for (int i = ll.getChildCount() - 1; i >= 0; i--) { View v = ll.getChildAt(i); boolean isActive = (v.getId() == highlight); if (isActive) { ll.setCurrentTab(i); sActiveTabIndex = i; } v.setTag(i); v.setOnFocusChangeListener(new View.OnFocusChangeListener() { public void onFocusChange(View v, boolean hasFocus) { if (hasFocus) { for (int i = 0; i < ll.getTabCount(); i++) { if (ll.getChildTabViewAt(i) == v) { ll.setCurrentTab(i); processTabClick((Activity) ll.getContext(), v, ll.getChildAt(sActiveTabIndex).getId()); break; } } } } }); v.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { processTabClick((Activity) ll.getContext(), v, ll.getChildAt(sActiveTabIndex).getId()); } }); } return withtabs; } static void processTabClick(Activity a, View v, int current) { int id = v.getId(); if (id == current) { return; } final TabWidget ll = (TabWidget) a.findViewById(R.id.buttonbar); activateTab(a, id); if (id != R.id.nowplaying) { ll.setCurrentTab((Integer) v.getTag()); setIntPref(a, "activetab", id); } } static void activateTab(Activity a, int id) { Intent intent = new Intent(Intent.ACTION_PICK); switch (id) { case R.id.artisttab: intent.setDataAndType(Uri.EMPTY, "vnd.android.cursor.dir/artistalbum"); break; case R.id.albumtab: intent.setDataAndType(Uri.EMPTY, "vnd.android.cursor.dir/album"); break; case R.id.songtab: intent.setDataAndType(Uri.EMPTY, "vnd.android.cursor.dir/track"); break; case R.id.playlisttab: intent.setDataAndType(Uri.EMPTY, MediaStore.Audio.Playlists.CONTENT_TYPE); break; case R.id.nowplaying: // intent = new Intent(a, MediaPlaybackActivity.class); // a.startActivity(intent); // fall through and return default: return; } intent.putExtra("withtabs", true); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); a.startActivity(intent); a.finish(); a.overridePendingTransition(0, 0); } static void updateNowPlaying(Activity a) { View nowPlayingView = a.findViewById(R.id.nowplaying); if (nowPlayingView == null) { return; } boolean withtabs = false; Intent intent = a.getIntent(); if (intent != null) { withtabs = intent.getBooleanExtra("withtabs", false); } //tinha um true == Music... if (MusicUtils.sService != null && MusicUtils.sService.getAudioId() != -1) { TextView title = (TextView) nowPlayingView.findViewById(R.id.title); TextView artist = (TextView) nowPlayingView.findViewById(R.id.artist); title.setText(MusicUtils.sService.getTrackName()); String artistName = MusicUtils.sService.getArtistName(); if (MediaStore.UNKNOWN_STRING.equals(artistName)) { artistName = a.getString(R.string.unknown_artist_name); } artist.setText(artistName); //mNowPlayingView.setOnFocusChangeListener(mFocuser); //mNowPlayingView.setOnClickListener(this); nowPlayingView.setVisibility(View.VISIBLE); nowPlayingView.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { // Context c = v.getContext(); // c.startActivity(new Intent(c, MediaPlaybackActivity.class)); } }); return; } nowPlayingView.setVisibility(View.GONE); } static void setBackground(View v, Bitmap bm) { if (bm == null) { v.setBackgroundResource(0); return; } int vwidth = v.getWidth(); int vheight = v.getHeight(); int bwidth = bm.getWidth(); int bheight = bm.getHeight(); float scalex = (float) vwidth / bwidth; float scaley = (float) vheight / bheight; float scale = Math.max(scalex, scaley) * 1.3f; Bitmap.Config config = Bitmap.Config.ARGB_8888; Bitmap bg = Bitmap.createBitmap(vwidth, vheight, config); Canvas c = new Canvas(bg); Paint paint = new Paint(); paint.setAntiAlias(true); paint.setFilterBitmap(true); ColorMatrix greymatrix = new ColorMatrix(); greymatrix.setSaturation(0); ColorMatrix darkmatrix = new ColorMatrix(); darkmatrix.setScale(.3f, .3f, .3f, 1.0f); greymatrix.postConcat(darkmatrix); ColorFilter filter = new ColorMatrixColorFilter(greymatrix); paint.setColorFilter(filter); Matrix matrix = new Matrix(); matrix.setTranslate(-bwidth / 2, -bheight / 2); // move bitmap center to origin matrix.postRotate(10); matrix.postScale(scale, scale); matrix.postTranslate(vwidth / 2, vheight / 2); // Move bitmap center to view center c.drawBitmap(bm, matrix, paint); v.setBackgroundDrawable(new BitmapDrawable(bg)); } static int getCardId(Context context) { ContentResolver res = context.getContentResolver(); Cursor c = res.query(Uri.parse("content://media/external/fs_id"), null, null, null, null); int id = -1; if (c != null) { c.moveToFirst(); id = c.getInt(0); c.close(); } return id; } static class LogEntry { Object item; long time; LogEntry(Object o) { item = o; time = System.currentTimeMillis(); } void dump(PrintWriter out) { sTime.set(time); out.print(sTime.toString() + " : "); if (item instanceof Exception) { ((Exception) item).printStackTrace(out); } else { out.println(item); } } } private static LogEntry[] sMusicLog = new LogEntry[100]; private static int sLogPtr = 0; private static Time sTime = new Time(); static void debugLog(Object o) { sMusicLog[sLogPtr] = new LogEntry(o); sLogPtr++; if (sLogPtr >= sMusicLog.length) { sLogPtr = 0; } } static void debugDump(PrintWriter out) { for (int i = 0; i < sMusicLog.length; i++) { int idx = (sLogPtr + i); if (idx >= sMusicLog.length) { idx -= sMusicLog.length; } LogEntry entry = sMusicLog[idx]; if (entry != null) { entry.dump(out); } } } }