public String titleForActivityType(@NonNull Context context) {
   if (pomodoroMaster.isOngoing()) {
     if (pomodoroMaster.getNextPomodoro() == null) {
       return null;
     }
     final String minutesLeft =
         Utils.convertDiffToPrettyMinutesLeft(
             context, pomodoroMaster.getNextPomodoro().minus(DateTime.now().getMillis()));
     return minutesLeft
         + " | "
         + Utils.getActivityTitle(context, pomodoroMaster, /* shorten */ true);
   } else {
     if (pomodoroMaster.getActivityType() == ActivityType.NONE) {
       return context.getString(R.string.title_none);
     } else {
       return context.getString(R.string.title_finished);
     }
   }
 }
  @NonNull
  public Notification buildNotificationPhone(@NonNull PendingIntent contentIntent) {

    final DateTime nextPomodoro = pomodoroMaster.getNextPomodoro();
    NotificationCompat.Builder builder =
        buildBaseNotification(/* isPhone */ true)
            .setWhen(nextPomodoro != null ? nextPomodoro.getMillis() : System.currentTimeMillis())
            .setContentIntent(contentIntent);

    return builder.build();
  }