1、修改当SD拔出的时候，音乐播放器停止播放的问题
src/com/android/music/MediaPlaybackActivity.java
private ServiceConnection osc = new ServiceConnection() {
1061 public void onServiceConnected(ComponentName classname, IBinder obj) {
1062 mService = IMediaPlaybackService.Stub.asInterface(obj);
1063 startPlayback();
1064 try {
1065 // Assume something is playing when the service says it is,
1066 // but also if the audio ID is valid but the service is paused.
1067 if (mService.getAudioId() >= 0 || mService.isPlaying() ||
1068 mService.getPath() != null) {
1069
1070 /* add by chenjd, [email protected]
1071 * save currently playing music
1072 */
1073 Uri uri = Uri.parse(mService.getPath());
1074 Cursor c = managedQuery(uri, null, null, null, null);
1075 String st = null;
1076 if(c != null)
1077 {
1078 while(c.moveToNext())
1079 {
1080 st = c.getString(1);
1081 break;
1082 }
1083 c.close();
1084 }
1085 if(st != null)
1086 {
1087 SharedPreferences pf = getSharedPreferences("current", 0);
1088 SharedPreferences.Editor editor = pf.edit();
1089 editor.putString("PlayedMusic", st);
1090 editor.commit();
1091 }
1092
1093 // something is playing now, we're done
1094 mRepeatButton.setVisibility(View.VISIBLE);
1095 mShuffleButton.setVisibility(View.VISIBLE);
1096 mQueueButton.setVisibility(View.VISIBLE);
1097 setRepeatButtonImage();
1098 setShuffleButtonImage();
1099 setPauseButtonImage();
1100 return;
1101 }
1102 } catch (RemoteException ex) {
1103 }
1104 // Service is dead or not playing anything. If we got here as part
1105 // of a "play this file" Intent, exit. Otherwise go to the Music
1106 // app start screen.
1107 if (getIntent().getData() == null) {
1108 Intent intent = new Intent(Intent.ACTION_MAIN);
1109 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1110 intent.setClass(MediaPlaybackActivity.this, MusicBrowserActivity.class);
1111 startActivity(intent);
1112 }
1113 finish();
1114 }
1115 public void onServiceDisconnected(ComponentName classname) {
1116 mService = null;
1117 }
1118 };
1119
在src/com/android/music/MediaPlaybackService.java
public void closeExternalStorageFiles(String storagePath) {
// stop playback and clean up if the SD card is going to be unmounted.
+ /* add by chenjd,[email protected],20120113
+ * don't let the playing stop
+ */
+ SharedPreferences spf = getSharedPreferences("current", 0);
+ String music = spf.getString("PlayedMusic", "null");
+ if(!music.contains(storagePath))
+ {
+ return;
+ }
stop(true);
notifyChange(QUEUE_CHANGED);
notifyChange(META_CHANGED);
};
public void registerExternalStorageListener() {
738 if (mUnmountReceiver == null) {
739 mUnmountReceiver = new BroadcastReceiver() {
740 @Override
741 public void onReceive(Context context, Intent intent) {
742 String action = intent.getAction();
743 if (action.equals(Intent.ACTION_MEDIA_EJECT)) {
744 saveQueue(true);
745 mQueueIsSaveable = false;
746 closeExternalStorageFiles(intent.getData().getPath());
747 } else if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) {
748 mMediaMountedCount++;
749 mCardId = MusicUtils.getCardId(MediaPlaybackService.this);
750 reloadQueue();
751 mQueueIsSaveable = true;
752 notifyChange(QUEUE_CHANGED);
753 //notifyChange(META_CHANGED);
754 }
755 }
756 };
757 IntentFilter iFilter = new IntentFilter();
758 iFilter.addAction(Intent.ACTION_MEDIA_EJECT);
759 iFilter.addAction(Intent.ACTION_MEDIA_MOUNTED);
760 iFilter.addDataScheme("file");
761 registerReceiver(mUnmountReceiver, iFilter);
762 }
763 }