Android, clicking on notification group

Question

I have a group of notifications in Android App. I need my application to know if the app was opened when the user clicked on the notification. I have used a pending intent and it works brilliantly. But how can I check if the user has clicked on the notification group? It shows no links, no notifications sounds, nothing. I found no information in the documentation. Please help.

Answer 1

You can add flag in intent like isFromNotification boolean and then pass that intent to pending intent and then notify user.

Now in activity check intent has this parameter then the user has come from notification. (simple like that)

Sample code

Intent notificationIntent = new Intent(this, TargetActivity.class);

notificationIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
            | Intent.FLAG_ACTIVITY_CLEAR_TASK
            | Intent.FLAG_ACTIVITY_NEW_TASK);

String channel_Id = "app_channel_01";

notificationIntent.putExtra(AppConstants.INTENTDATA.ISFROMNOTIFICATION,
        true);

PendingIntent pendingIntent = PendingIntent.getActivity(MyApplication.getInstance(),
            0, notificationIntent,
            0);

NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(MyApplication.getInstance(), channel_Id)
            .setSmallIcon(R.mipmap.ic_launcher)
            .setColor(MyApplication.getInstance().getResources().getColor(android.R.color.white))
            .setContentTitle(getResources().getString(R.string.app_name))
            .setContentText(message)
            .setAutoCancel(true)
            .setContentIntent(pendingIntent)
            .setWhen(System.currentTimeMillis());

NotificationManager notificationManager =
    (NotificationManager) MyApplication.getInstance().getSystemService(Context.NOTIFICATION_SERVICE);

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

    // Create or update.
    NotificationChannel channel = new NotificationChannel(channel_Id,
        "General Notifications",
        NotificationManager.IMPORTANCE_DEFAULT);
    notificationManager.createNotificationChannel(channel);
}

notificationManager.notify(notificationId, notificationBuilder.build());