通知声音问题

Question

我正在尝试测试通知.我创建了一个启用了音频播放的模拟器.我能收到通知,但我听不到声音.可能是什么问题呢？我缺少任何设置吗？

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);

当我看到logcat时,我有以下堆栈跟踪.

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

这个想法是正确的.在阅读了另一个人的问题之后,我添加了指定的目录结构并将声音文件推送到/mnt/sdcard/media/audio/notificationsDDMS中的目录.(我认为C:\Program Files (x86)\Android\android-sdk\platforms\android-14\data\res\raw\fallbackring.ogg发出良好的通知声音.)在模拟器中,我然后卸载然后重新安装SD卡.然后通知铃声设置除了"Silent"之外还有"Cobalt",选择之后,我的通知听起来很正常.