I am setting my selectDate on longPress but why does it say that my selectDate is null in HighlightCalander function? Any ideas.
This eventHandler is called in onCreate (Main Activity):-
calendarview.setEventHandler(new CalendarView.EventHandler()
{
@Override
public void onDayLongPress(Date date)
{
DateFormat df = SimpleDateFormat.getDateInstance();
selectDate = date;
System.out.println(selectDate);
intent1 = new Intent(getApplicationContext(), MakeAppointmentsActivity.class);
intent1.putExtra("DATE",df.format(date));
startActivity(intent1);
}
This function is called in onResume (Main Activity):-
public void HighlightCalendar()
{
intent2 = getIntent();
// get my boolean from save button
boolean savedDate = intent2.getBooleanExtra("savedDate", false);
// if i pressed my saved button
if(savedDate) {
Toast.makeText(this,"true",Toast.LENGTH_SHORT).show();
try {
DateFormat df = SimpleDateFormat.getDateInstance();
SimpleDateFormat curFormater = new SimpleDateFormat("MMM yyyy");
String dateString = df.format(selectDate);
Date dateObj = curFormater.parse(dateString);
events.add(dateObj);
calendarview.updateCalendar(events);
}catch (ParseException e){
e.printStackTrace();
}
}
else
{
Toast.makeText(this,"false",Toast.LENGTH_SHORT).show();
}
}
You are assigning a value to selectDate
in onDayLongPress
but you are using it in onResume
. Everytime you create an Activity
onCreate()
and onResume()
are called. You are getting a NUllpointerException
because, in onResume()
(which is called before onDayLongPress
) selectDate
is not initalized and therefore null
. You could initalize selectDate
in one of the 2 methods to avoid the exception.
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