android - 不同的通知声音在奥利奥中不起作用

Question

我仅在 Oreo 版本中遇到一些与通知相关的问题。我关注this link并按照他的建议卸载/安装应用程序后成功获得自定义声音。

现在的问题是我想在我的应用程序中使用两个自定义声音，为此，我有如下代码:

private void sendNotification(NotificationBean notificationBean) {
    String textTitle = notificationBean.getTitle();
    String alert = notificationBean.getMessage().getAlert();
    int orderId = notificationBean.getMessage().getOrderId();
    String notificationType = notificationBean.getMessage().getNotificationType();
    String sound = notificationBean.getMessage().getSound();

    Intent intent = new Intent(this, NavigationDrawerActivity.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);

    Uri soundUri;

    if (notificationType.equals("Pending"))
        soundUri = Uri.parse("android.resource://" + getApplicationContext().getPackageName() + "/" + R.raw.sound);
    else
        soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this, getString(R.string.app_name))
            .setSmallIcon(R.drawable.ic_stat_name)
            .setContentTitle(textTitle)
            .setContentText(alert)
            .setSound(soundUri)
            .setContentIntent(pendingIntent)
            .setPriority(NotificationCompat.PRIORITY_DEFAULT);

    // Create the NotificationChannel, but only on API 26+ because
    // the NotificationChannel class is new and not in the support library
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        CharSequence name = getString(R.string.app_name);
        String description = getString(R.string.app_name);
        int importance = NotificationManager.IMPORTANCE_DEFAULT;

        NotificationChannel channel = new NotificationChannel(getString(R.string.app_name), name, importance);
        channel.setDescription(description);

        AudioAttributes attributes = new AudioAttributes.Builder()
                .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                .setUsage(AudioAttributes.USAGE_NOTIFICATION)
                .build();

        channel.enableLights(true);
        channel.enableVibration(true);
        channel.setSound(soundUri, attributes);

        // Register the channel with the system; you can't change the importance
        // or other notification behaviors after this
        NotificationManager notificationManager = getSystemService(NotificationManager.class);
        notificationManager.createNotificationChannel(channel);
    }

    NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);

    // notificationId is a unique int for each notification that you must define
    notificationManager.notify(101, mBuilder.build());
}

如果我得到 notificationType = "Pending" 那么我想使用自定义声音，否则 DEFAULT 声音，但这里它正在播放第一次播放的声音(当我第一次收到通知时。)。

我只在奥利奥中遇到这个问题。在所有其他设备中它工作正常。

有什么帮助吗？我们将不胜感激您的帮助。

Answer 1

问题:
看来通知 channel 有问题。

解决方案:
您要么应该创建单独的 channel ，要么应该删除自己的 channel 。

策略:
1) 创建单独的 channel :
如果您希望为您的应用保留多个 channel 以及各种配置，您可以选择此策略。
要创建单独的 channel ，只需在创建时提供唯一的 channel ID 即可。
即:

NotificationChannel channel = new NotificationChannel(uniqueChannelId, name, importance);

2) 删除现有 channel 并重新创建:
如果您希望为您的应用保留仅一个 channel 以及更新配置，您可以选择此策略。

要删除您自己的 channel 并重新创建它，以下操作可能会正常工作:

NotificationManager mNotificationManager = getSystemService(NotificationManager.class);

NotificationChannel existingChannel = notificationManager.getNotificationChannel(channelId);

//it will delete existing channel if it exists
if (existingChannel != null) {
mNotificationManager.deleteNotificationChannel(notificationChannel);
}
//then your code to create channel
NotificationChannel channel = new NotificationChannel(channelId, name, importance);