Android notification doesn't disappear after clicking the notification

Question

While building Notification by NotificationBuilder you can use notificationBuilder.setAutoCancel(true);.

notification.flags = Notification.DEFAULT_LIGHTS | Notification.FLAG_AUTO_CANCEL

From the documentation:

Bit to be bitwise-ored into the flags field that should be set if the notification should be canceled when it is clicked by the user

// Uses the default lighting scheme
notification.defaults |= Notification.DEFAULT_LIGHTS;

// Will show lights and make the notification disappear when the presses it
notification.flags |= Notification.FLAG_AUTO_CANCEL | Notification.FLAG_SHOW_LIGHTS;

2016 state: you can use mBuilder.setAutoCancel(true).

Source: https://developer.android.com/reference/android/app/Notification.Builder.html

The answer for me was to use mBuilder.setOngoing(false)

Use the flag Notification.FLAG_AUTO_CANCEL

Notification notification = new Notification(icon, tickerText, when);
notification.setLatestEventInfo(context, contentTitle, contentText, pendingIntent);

// Cancel the notification after its selected
notification.flags |= Notification.FLAG_AUTO_CANCEL;

and to launch the app:

NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

Intent intent = new Intent(context, App.class);

PendingIntent pendingIntent = PendingIntent.getActivity(context, intent_id, intent, PendingIntent.FLAG_UPDATE_CURRENT);

Remove a notification

Notifications remain visible until one of the following happens:

1. The user dismisses the notification.
2. The user clicks the notification, and you called setAutoCancel() when you created the notification.
3. You call cancel() for a specific notification ID. This method also deletes ongoing notifications.
4. You call cancelAll(), which removes all of the notifications you previously issued.
5. If you set a timeout when creating a notification using setTimeoutAfter(), the system cancels the notification after the specified duration elapses. If required, you can cancel a notification before the specified timeout duration elapses.

For more details see: https://developer.android.com/training/notify-user/build-notification?hl=en