heads up notification 2

private void showNotification(boolean showAsHeadsUp)
{
    final Intent intent = getIntent();
    intent.putExtra("launched_from_notification", true);

    final Notification.Builder nb = new Notification.Builder(this);
    nb.setContentTitle("Foobar");
    nb.setContentText("I am the content text");
    nb.setOngoing(true);
    nb.setSmallIcon(android.R.drawable.ic_dialog_info);
    nb.setContentIntent(PendingIntent.getActivity(
            this, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT));
    nb.setPriority(Notification.PRIORITY_HIGH);

    // Notifications without sound or vibrate will never be heads-up    nb.setDefaults(showAsHeadsUp ? Notification.DEFAULT_ALL : 0);

    ((NotificationManager) getSystemService(NOTIFICATION_SERVICE)).notify(0, nb.build());
}