leftStringAtIndex method
Implementation
@override
String? leftStringAtIndex(int index) {
DateTime time = _dayAt(index);
if (minTime != null && time.isBefore(minTime!) && !_isMinDay(time)) {
return null;
} else if (maxTime != null && time.isAfter(maxTime!) && !_isMaxDay(time)) {
return null;
}
return formatDate(time, [ymdw], locale);
}