android - Android通知-setSound不起作用

Question

我看过有关此主题的几个问题，似乎都建议在通知生成器中仅使用.setSound(alarmSound)会使电话在通知中播放声音。但是，我只是在这样做，它是行不通的。

我可能丢失了一些东西，但找不到。

这是我用来发出通知的代码:

private void newArrivalNotification(String locId, String userId) {

    ...

    mNotificationManager = (NotificationManager)
            this.getSystemService(Context.NOTIFICATION_SERVICE);

    Intent mainActivity = new Intent(this, MainActivity.class);

    PendingIntent contentIntent = PendingIntent.getActivity(this, locId.hashCode(),
            mainActivity, 0);

    Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

    if(alarmSound == null) {
        Log.w("GcmIntentService", "alarmSound is null");
    }

    NotificationCompat.Builder mBuilder =
            new NotificationCompat.Builder(this)
                .setAutoCancel(true)
                .setSmallIcon(R.drawable.ic_launcher)
                .setContentTitle(title)
                .setStyle(new NotificationCompat.BigTextStyle()
                    .bigText(msg))
                .setSound(alarmSound, AudioManager.STREAM_NOTIFICATION)
                .setTicker(msg)
                .setContentText(msg);

    mBuilder.setContentIntent(contentIntent);

    Notification arrivalNotification = mBuilder.build();
    arrivalNotification.defaults |= Notification.DEFAULT_VIBRATE;

    mNotificationManager.notify(NOTIFICATION_ID, arrivalNotification);
}

你能发现我做错了什么吗？我看了几个小时，找不到任何东西。

Answer 1

问题是您正在使用此代码行修改默认的通知行为(声音和振动)。

Notification arrivalNotification = mBuilder.build();
arrivalNotification.defaults |= Notification.DEFAULT_VIBRATE;
mNotificationManager.notify(NOTIFICATION_ID, arrivalNotification);

您可以使用以下方法再次激活它:

int defaults = 0;
defaults |= Notification.DEFAULT_SOUND;
defaults |= Notification.DEFAULT_VIBRATE;
mBuilder.setDefaults(defaults);
mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());

希望对您有所帮助! ;)