I used following code to get the calendar ID.
private fun getCalendarId(context: Context) : Long? {
val projection = arrayOf(Calendars._ID, Calendars.CALENDAR_DISPLAY_NAME)
var calCursor = context.contentResolver.query(
Calendars.CONTENT_URI,
projection,
Calendars.VISIBLE + " = 1 AND " + Calendars.IS_PRIMARY + "=1",
null,
Calendars._ID + " ASC"
)
if (calCursor != null && calCursor.count <= 0) {
calCursor = context.contentResolver.query(
Calendars.CONTENT_URI,
projection,
Calendars.VISIBLE + " = 1",
null,
Calendars._ID + " ASC"
)
}
if (calCursor != null) {
if (calCursor.moveToFirst()) {
val calName: String
val calID: String
val nameCol = calCursor.getColumnIndex(projection[1])
val idCol = calCursor.getColumnIndex(projection[0])
calName = calCursor.getString(nameCol)
calID = calCursor.getString(idCol)
Log.d("Calendar name = $calName Calendar ID = $calID")
calCursor.close()
return calID.toLong()
}
}
return null
}
So do not pass 0, 1 or 3 as Calendar ID. Use above function instead.
Also, check if Calendar ID is `null` and do not perform operations with it if it is `null`.
val calendarId = getCalendarId(context)
if (calendarId != null) {
//Call operations e.g.: Insert operation
}
I was getting this issue and then I used following code to get the calendar ID.
private fun getCalendarId(context: Context) : Long? {
val projection = arrayOf(Calendars._ID, Calendars.CALENDAR_DISPLAY_NAME)
var calCursor = context.contentResolver.query(
Calendars.CONTENT_URI,
projection,
Calendars.VISIBLE + " = 1 AND " + Calendars.IS_PRIMARY + "=1",
null,
Calendars._ID + " ASC"
)
if (calCursor != null && calCursor.count <= 0) {
calCursor = context.contentResolver.query(
Calendars.CONTENT_URI,
projection,
Calendars.VISIBLE + " = 1",
null,
Calendars._ID + " ASC"
)
}
if (calCursor != null) {
if (calCursor.moveToFirst()) {
val calName: String
val calID: String
val nameCol = calCursor.getColumnIndex(projection[1])
val idCol = calCursor.getColumnIndex(projection[0])
calName = calCursor.getString(nameCol)
calID = calCursor.getString(idCol)
log("Calendar name = $calName Calendar ID = $calID")
calCursor.close()
return calID.toLong()
}
}
return null
}
So **do not pass 0, 1 or 3 as Calendar ID**. Use above function instead.
