nextMode method
Implementation
CalendarMode nextMode({
bool day = true,
bool week = true,
bool month = true,
}) {
for (var i = index - 1; i >= 0; --i) {
var v = CalendarMode.values[i];
if (v == CalendarMode.day) {
if (day) return v;
} else if (v == CalendarMode.week) {
if (week) return v;
} else if (v == CalendarMode.month) {
if (month) return v;
}
}
return this;
}