通知 startForeground() 第二次不工作

Question

我正在使用服务类创建通知。它适用于以下 android O，但对于更高版本，通知是第一次显示，如果我尝试第二次显示它，它不会显示。以下是我的代码：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        Log.e("inside here", "inside ");
        NotificationManager manager = (NotificationManager) service.getSystemService(Context.NOTIFICATION_SERVICE);
        NotificationChannel channel = new NotificationChannel(PRIMARY_CHANNEL, PRIMARY_CHANNEL_NAME, NotificationManager.IMPORTANCE_LOW);
        channel.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
        manager.createNotificationChannel(channel);
    }

    NotificationCompat.Builder builder = new NotificationCompat.Builder(service, PRIMARY_CHANNEL)
            .setAutoCancel(false)
            .setContentTitle(strLiveBroadcast)
            .setContentText(strAppName)
            .setLargeIcon(largeIcon)
            .setContentIntent(pendingIntent)
            .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
            .setSmallIcon(android.R.drawable.stat_sys_headset)
            .addAction(icon, "pause", action)
            .addAction(R.drawable.ic_stop_white, "stop", stopAction)
            .setPriority(NotificationCompat.PRIORITY_HIGH)
            .setWhen(System.currentTimeMillis())
            .setStyle(new android.support.v4.media.app.NotificationCompat.MediaStyle()
                    .setMediaSession(service.getMediaSession().getSessionToken())
                    .setShowActionsInCompactView(0, 1)
                    .setShowCancelButton(true)
                    .setCancelButtonIntent(stopAction));

    service.startForeground(NOTIFICATION_ID, builder.build());

这在较低版本中完全可以正常工作。

Answer 1

startForeground() 不适用于通知如果 NOTIFICATION_ID 参数设置为 0 或者您需要在每次调用时添加 Random Id 逻辑。

startForeground(0, notification); // Doesn't work...

startForeground(1, notification); // Works!!!

我希望这会奏效！