Question

我希望在我的应用运行并执行某些操作时显示简单的通知。我想在用户点击通知时打开我的应用。到目前为止，这种行为就像我想要的那样。但是，当用户单击通知时，在打开应用程序并且通知仍然存在的同时，通知栏中的通知图标（向左滑动之前的时间）消失。编辑：我刚观察到，一旦任何其他通知（WhatsApp）到达，通知图标会再次出现在通知栏中。我该如何防止这种行为？

通知如下：

   NotificationCompat.Builder builder = new NotificationCompat.Builder(this);

    Intent notificationIntent = new Intent(this, MainActivity.class);
    PendingIntent intent = PendingIntent.getActivity(this, 0,
            notificationIntent, 0);

    builder.setContentTitle("Running")
            .setContentText("App is running.")
            .setSmallIcon(R.drawable.ic_lock_outline_black_24dp)
            .setOngoing(true)
            .setContentIntent(intent);
    notifyManager.notify(appRunningNotificationID, builder.build());

Answer 1

看下面的代码：

           TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
        stackBuilder.addParentStack(MainActivity.class);
        PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);
        NotificationCompat.Builder  mBuilder = new NotificationCompat.Builder(this)
                .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
                .setAutoCancel(true)
                .setSmallIcon(R.drawable.ic_launcher)
                .setContentTitle("Running")
                .setContentText("App is running")
                .setTicker("My app")
                .setContentIntent(resultPendingIntent);

        NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        Notification notification = mBuilder.build();
        long[] vibrate = { 500,1000 };
        notification.vibrate = vibrate;
        mNotificationManager.notify(appRunningNotificationID, notification);

单击时，在状态栏中保留通知图标

1 个答案: