android-notifications - 适用于 Android 11 的 NotificationChannel 的自定义声音不起作用

Question

我有自定义声音的推送通知，直到 android 10。从 Android 11 开始，当通知显示为下拉样式时，附加到通知 channel 的声音停止播放。当它显示为全屏事件时，它会起作用。
这是如何创建通知 channel 的示例源代码

private void createNotificationChannel() {
    // 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) {

    String channelId = "media_playback_channel_v_01_1_sound"
    String channelName = "Channel High"
        NotificationChannel channel = new NotificationChannel(channelId, channelName, NotificationManager.IMPORTANCE_HIGH);
        channel.setDescription("My custom sound");
        channel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);

        AudioAttributes.Builder builder = new AudioAttributes.Builder();
        builder.setUsage(AudioAttributes.USAGE_NOTIFICATION);
    String basePath = ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + getPackageName() + "/" + R.raw.alarm_sound);
    Uri alarmSound = Uri.parse(basePath);
        channel.setSound(alarmSound, builder.build());

        channel.enableVibration(true);
        channel.enableLights(true);
        channel.setLightColor(Color.RED);
    }
}

我使用上面的通知 channel 并按如下方式触发通知:

private void fireNotification(Context context) {
    String channelId = "media_playback_channel_v_01_1_sound"
        NotificationChannel channel = getManager().getNotificationChannel(channelId);


        PendingIntent fullScreenPendingIntent = PendingIntent.getActivity(context, 100,
                fullScreenIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        String contentText = getString(R.string.call_notification_incoming_from, from);

        Bundle args = new Bundle();
        args.putInt(CallActivity.INTENT_CALL_NOTIFICATION_ID, ActiveCall.ANDROID_10_PUSH_CALL_NTFN_ID);
        args.putBoolean(CallActivity.INTENT_FROM_CALL_NOTIFICATION, true);
        args.putString(CallActivity.INTENT_NOTIFICATION_CALL_ID, fullScreenIntent.getStringExtra(CallActivity.INTENT_NOTIFICATION_CALL_ID));

        NotificationCompat.Builder notificationBuilder =
                new NotificationCompat.Builder(this, type)
                        .setSmallIcon(iconRes)
                        .setContentTitle(getString(R.string.app_name))
                        .setContentText(contentText)
                        .setPriority(NotificationCompat.PRIORITY_HIGH)
                        .setCategory(NotificationCompat.CATEGORY_CALL)
                        .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
                        .setOngoing(true)
                        .setGroupAlertBehavior(NotificationCompat.GROUP_ALERT_ALL)
                        .setTimeoutAfter(Consts.MINUTE)
                        .addExtras(args);

    notificationBuilder.addAction(
        R.drawable.ic_accept_call,
                getString(R.string.call_notification_incoming_answer),
                answerPendingIntent);
        notificationBuilder.addAction(
                        R.drawable.ic_decline_bttn,
                        getString(R.string.call_notification_incoming_reject),
                        rejectPendingIntent
                );
        notificationBuilder.setFullScreenIntent(fullScreenPendingIntent, true);

    // Build
        Notification notification = notificationBuilder.build();
    notification.sound = notificationSoundUri;
        notification.flags |= (Notification.FLAG_SHOW_LIGHTS | Notification.FLAG_INSISTENT Notification.FLAG_NO_CLEAR);
        notification.ledARGB = Color.RED;
        notification.ledOnMS = 300;
        notification.ledOffMS = 1000;

    // Notify
        NotificationManager notificationManager = getManager();
        notificationManager.notify(id, notification);
}

请注意，相同的代码在 Android 10 中播放声音，而在 Android 11 上则不然。

Answer 1

我也被 android 11 困住了，但我试过了 不同 channel 名称 并且不要 channel channel ID。
此解决方案适用于每个 android 版本 11 设备。
请试试这个，如果这对你不起作用，请告诉我。

public void showNotification(String title, String message) {
        count++;
        Intent intent = new Intent(this, HomePageActivity.class);
        String channel_id = "notification_channel";
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);
        Uri soundUri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + getApplicationContext().getPackageName() + "/" + R.raw.coin);
        NotificationCompat.Builder builder = new NotificationCompat.Builder(getApplicationContext(), channel_id)
                .setSmallIcon(R.mipmap.ic_launcher_round)
                .setAutoCancel(true)
                .setVibrate(new long[]{1000, 1000, 1000, 1000, 1000})
                .setOnlyAlertOnce(true)
                .setSound(soundUri)
                .setContentIntent(pendingIntent);
        builder.setNumber(count);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            builder = builder.setContent(getCustomDesign(title, message));
        } else {
            builder = builder.setContentTitle(title).setContentText(message).setSmallIcon(R.mipmap.ic_launcher_round);
        }
        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel notificationChannel = new NotificationChannel(channel_id, "DIFFRENT_CHANNEL_NAME", NotificationManager.IMPORTANCE_HIGH); // Here I tried put different channel name.
            notificationChannel.setShowBadge(true);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                notificationChannel.canBubble();
            }
            AudioAttributes audioAttributes = new AudioAttributes.Builder()
                    .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                    .setUsage(AudioAttributes.USAGE_NOTIFICATION)
                    .build();

            notificationChannel.canShowBadge();
            notificationChannel.enableVibration(true);
            notificationChannel.setSound(soundUri, audioAttributes);
            notificationManager.createNotificationChannel(notificationChannel);
            notificationManager.notify(0, builder.build());
        }
    }