animateToMonthPicker method

Future<void> animateToMonthPicker([ DateTime? date, Duration duration = const Duration(milliseconds: 200), Curve curve = Curves.ease ])

Shows the month picker for the given date's year, or the current year if date is null.

If the month picker is already shown, its grid animates to the year; otherwise it is shown immediately.

Testing

To avoid timeouts in widget tests, always wrap the returned Future in unawaited.

testWidgets('shows', (tester) async {
  await tester.pumpWidget(...);

  unawaited(controller.show());
  await tester.pumpAndSettle();
});

Implementation

Future<void> animateToMonthPicker([
  DateTime? date,
  Duration duration = const Duration(milliseconds: 200),
  Curve curve = Curves.ease,
]) async {
  final target = _clamp(start, switch (date) {
    null => _currentMonth,
    final m => .utc(m.year, m.month),
  }, end);

  if (month.controller.hasClients) {
    await month.animateTo(target, duration: duration, curve: curve);
  } else {
    _reattach(month, .month, target);
  }
}