Problem with notification sounds

Question

I am trying to test a notification. I have created an emulator with audio playback enabled. I am able to get the notification but I am not able to hear sound. What could be the problem? Are there any settings I am missing?

NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(ns);
        int icon = R.drawable.icon;
        CharSequence tickerText = "Hello";
        CharSequence contentTitle = "My notification";  // expanded message title
        CharSequence contentText = "Hello";      // expanded message text

        Intent notificationIntent = new Intent("ABC");
        PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);

        long when = System.currentTimeMillis();

        Notification notification = new Notification(icon, tickerText, when);

        notification.defaults |= Notification.DEFAULT_SOUND;

        notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);


        mNotificationManager.notify(HELLO_ID, notification);

When I saw logcat, I have the following stack trace.

09-20 15:44:47.297: DEBUG/MediaPlayer(62): Couldn't open file on client side, trying server side
09-20 15:44:47.347: ERROR/MediaPlayerService(34): Couldn't open fd for content://settings/system/notification_sound
09-20 15:44:47.347: ERROR/MediaPlayer(62): Unable to to create media player
09-20 15:44:47.415: WARN/NotificationService(62): error loading sound for content://settings/system/notification_sound
09-20 15:44:47.415: WARN/NotificationService(62): java.io.IOException: setDataSource failed.: status=0x80000000
09-20 15:44:47.415: WARN/NotificationService(62):     at android.media.MediaPlayer.setDataSource(Native Method)
09-20 15:44:47.415: WARN/NotificationService(62):     at android.media.MediaPlayer.setDataSource(MediaPlayer.java:714)
09-20 15:44:47.415: WARN/NotificationService(62):     at android.media.MediaPlayer.setDataSource(MediaPlayer.java:669)
09-20 15:44:47.415: WARN/NotificationService(62):     at com.android.server.NotificationPlayer$CreationAndCompletionThread.run(NotificationPlayer.java:88)

Answer 1

What thisisanath was thinking is correct. After reading another person's problems, I added the indicated directory structure and pushed a sound file to the /mnt/sdcard/media/audio/notifications directory in DDMS. (I think C:\Program Files (x86)\Android\android-sdk\platforms\android-14\data\res\raw\fallbackring.ogg makes a good notification sound.) In the emulator I then unmounted and then remounted the SD card. The notification ringtone setting then had "Cobalt" in addition to "Silent", and after selecting that, my notification sounds worked fine.

Answer 2

I was able to get the notification sound play by giving it a different file on the sdcard. I was having a problem playing the default sound. I am not sure what the default sound is. When I went into settings and saw the default sound - it was having only one option i.e silent. I was not able to change it also. So may be there is no default notification sound and hence I was getting that error, though we would assume, there would be a sensible default.