Events Not loading after asynchronous call

[williamkibira]

Hello , i have my network call set up to add events as shown below
Event Loading

@Override
    public void onSchedulesLoaded(int month, List<AntenatalSchedule> schedules) {
        scheduleLoader(schedules);
        weekView.notifyDatasetChanged();
    }

private void scheduleLoader(List<AntenatalSchedule> schedules) {
        weekViewEvents.clear();
        for (AntenatalSchedule schedule : schedules) {
            weekViewEvents.add(toWeekViewEvent(schedule));
            Log.d("APP", schedule.toString());
        }
    }

private WeekViewEvent toWeekViewEvent(AntenatalSchedule schedule) {
        Calendar now = Calendar.getInstance();
        Calendar startTime = (Calendar) now.clone();
        startTime.setTimeInMillis(schedule.getFrom().getMillis());
        startTime.set(Calendar.YEAR, now.get(Calendar.YEAR));
        startTime.set(Calendar.MONTH, now.get(Calendar.MONTH));
        startTime.set(Calendar.DAY_OF_MONTH, schedule.getFrom().getMonthOfYear());
        Calendar endTime = (Calendar) startTime.clone();
        endTime.setTimeInMillis(schedule.getTo().getMillis());
        endTime.set(Calendar.YEAR, endTime.get(Calendar.YEAR));
        endTime.set(Calendar.MONTH, endTime.get(Calendar.MONTH));
        endTime.set(Calendar.DAY_OF_MONTH, endTime.get(Calendar.DAY_OF_MONTH));
        // Create an week view event.
        WeekViewEvent weekViewEvent = new WeekViewEvent();
        weekViewEvent.setIdentifier(schedule.getId().toString());
        weekViewEvent.setName(schedule.getPatientName());
        weekViewEvent.setStartTime(startTime);
        weekViewEvent.setEndTime(endTime);
        weekViewEvent.setColor(Color.parseColor(schedule.getColorCode()));
        weekViewEvent.setLocation("");
        Log.d("APP",weekViewEvent.getStartTime().toString());
        Log.d("APP",weekViewEvent.getEndTime().toString());
        Log.d("APP",weekViewEvent.getName());
        Log.d("APP", weekViewEvent.toString());
        return weekViewEvent;
    }

weekView.setMonthChangeListener((newYear, newMonth) ->
        {
            Log.d("APP", "SCHEDULES ADDED TO VIEW");
            Log.d("APP", String.format("EVENT SIZE %d", weekViewEvents.size()));
            return weekViewEvents;
        });

i notice that the onMonthChange listener is triggered when a call to weekView.notifyDatasetChanged();
is called but, the events are not loaded .
I have also tried weekView.invalidate(); and nothing happens either .
Any advice on how to fix this problem would be greatly appreciated .