qzl
52 lines
1.3 KiB
Dart
52 lines
1.3 KiB
Dart
import 'package:flutter/material.dart';
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enum CalendarViewType { day, month }
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class CalendarState {
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final CalendarViewType viewType;
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final DateTime selectedDate;
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CalendarState({required this.viewType, required this.selectedDate});
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CalendarState copyWith({CalendarViewType? viewType, DateTime? selectedDate}) {
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return CalendarState(
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viewType: viewType ?? this.viewType,
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selectedDate: selectedDate ?? this.selectedDate,
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);
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}
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}
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class CalendarStateManager extends ChangeNotifier {
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CalendarState _state;
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CalendarStateManager()
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: _state = CalendarState(
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viewType: CalendarViewType.month,
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selectedDate: DateTime.now(),
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);
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CalendarState get state => _state;
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CalendarViewType get viewType => _state.viewType;
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DateTime get selectedDate => _state.selectedDate;
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void setViewType(CalendarViewType type) {
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_state = _state.copyWith(viewType: type);
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notifyListeners();
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}
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void setSelectedDate(DateTime date) {
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_state = _state.copyWith(selectedDate: date);
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notifyListeners();
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}
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void resetToToday() {
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final now = DateTime.now();
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_state = CalendarState(
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viewType: CalendarViewType.month,
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selectedDate: DateTime(now.year, now.month, now.day),
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);
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notifyListeners();
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}
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}
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