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Created September 19, 2021 16:51
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Custom TableCalendar
class CustomTableCalendar extends StatefulWidget {
const CustomTableCalendar({Key? key}) : super(key: key);
@override
_CustomTableCalendarState createState() => _CustomTableCalendarState();
}
class _CustomTableCalendarState extends State<CustomTableCalendar> {
final todaysDate = DateTime.now();
var _focusedCalendarDate = DateTime.now();
final _initialCalendarDate = DateTime(2000);
final _lastCalendarDate = DateTime(2050);
DateTime? selectedCalendarDate;
final titleController = TextEditingController();
final descpController = TextEditingController();
late Map<DateTime, List<MyEvents>> mySelectedEvents;
@override
void initState() {
selectedCalendarDate = _focusedCalendarDate;
mySelectedEvents = {};
super.initState();
}
@override
void dispose() {
titleController.dispose();
descpController.dispose();
super.dispose();
}
List<MyEvents> _listOfDayEvents(DateTime dateTime) {
return mySelectedEvents[dateTime] ?? [];
}
_showAddEventDialog() async {
await showDialog(
context: context,
builder: (context) => AlertDialog(
title: const Text('New Event'),
content: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
mainAxisSize: MainAxisSize.min,
children: [
buildTextField(
controller: titleController, hint: 'Enter Title'),
const SizedBox(
height: 20.0,
),
buildTextField(
controller: descpController, hint: 'Enter Description'),
],
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Cancel'),
),
TextButton(
onPressed: () {
if (titleController.text.isEmpty &&
descpController.text.isEmpty) {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text('Please enter title & description'),
duration: Duration(seconds: 3),
),
);
//Navigator.pop(context);
return;
} else {
setState(() {
if (mySelectedEvents[selectedCalendarDate] != null) {
mySelectedEvents[selectedCalendarDate]?.add(MyEvents(
eventTitle: titleController.text,
eventDescp: descpController.text));
} else {
mySelectedEvents[selectedCalendarDate!] = [
MyEvents(
eventTitle: titleController.text,
eventDescp: descpController.text)
];
}
});
titleController.clear();
descpController.clear();
Navigator.pop(context);
return;
}
},
child: const Text('Add'),
),
],
));
}
Widget buildTextField(
{String? hint, required TextEditingController controller}) {
return TextField(
controller: controller,
textCapitalization: TextCapitalization.words,
decoration: InputDecoration(
labelText: hint ?? '',
focusedBorder: OutlineInputBorder(
borderSide: const BorderSide(color: AppColors.eggPlant, width: 1.5),
borderRadius: BorderRadius.circular(
10.0,
),
),
enabledBorder: OutlineInputBorder(
borderSide: const BorderSide(color: AppColors.eggPlant, width: 1.5),
borderRadius: BorderRadius.circular(
10.0,
),
),
),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Custom Calendar'),
),
floatingActionButton: FloatingActionButton.extended(
onPressed: () => _showAddEventDialog(),
label: const Text('Add Event'),
),
body: SingleChildScrollView(
child: Column(
children: [
Card(
margin: const EdgeInsets.all(8.0),
elevation: 5.0,
shape: const RoundedRectangleBorder(
borderRadius: BorderRadius.all(
Radius.circular(10),
),
side: BorderSide(color: AppColors.blackCoffee, width: 2.0),
),
child: TableCalendar(
focusedDay: _focusedCalendarDate,
// today's date
firstDay: _initialCalendarDate,
// earliest possible date
lastDay: _lastCalendarDate,
// latest allowed date
calendarFormat: CalendarFormat.month,
// default view when displayed
// default is Saturday & Sunday but can be set to any day.
// instead of day number can be mentioned as well.
weekendDays: const [DateTime.sunday, 6],
// default is Sunday but can be changed according to locale
startingDayOfWeek: StartingDayOfWeek.monday,
// height between the day row and 1st date row, default is 16.0
daysOfWeekHeight: 40.0,
// height between the date rows, default is 52.0
rowHeight: 60.0,
// this property needs to be added if we want to show events
eventLoader: _listOfDayEvents,
// Calendar Header Styling
headerStyle: const HeaderStyle(
titleTextStyle:
TextStyle(color: AppColors.babyPowder, fontSize: 20.0),
decoration: BoxDecoration(
color: AppColors.eggPlant,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(10),
topRight: Radius.circular(10))),
formatButtonTextStyle:
TextStyle(color: AppColors.ultraRed, fontSize: 16.0),
formatButtonDecoration: BoxDecoration(
color: AppColors.babyPowder,
borderRadius: BorderRadius.all(
Radius.circular(5.0),
),
),
leftChevronIcon: Icon(
Icons.chevron_left,
color: AppColors.babyPowder,
size: 28,
),
rightChevronIcon: Icon(
Icons.chevron_right,
color: AppColors.babyPowder,
size: 28,
),
),
// Calendar Days Styling
daysOfWeekStyle: const DaysOfWeekStyle(
// Weekend days color (Sat,Sun)
weekendStyle: TextStyle(color: AppColors.ultraRed),
),
// Calendar Dates styling
calendarStyle: const CalendarStyle(
// Weekend dates color (Sat & Sun Column)
weekendTextStyle: TextStyle(color: AppColors.ultraRed),
// highlighted color for today
todayDecoration: BoxDecoration(
color: AppColors.eggPlant,
shape: BoxShape.circle,
),
// highlighted color for selected day
selectedDecoration: BoxDecoration(
color: AppColors.blackCoffee,
shape: BoxShape.circle,
),
markerDecoration: BoxDecoration(
color: AppColors.ultraRed, shape: BoxShape.circle),
),
selectedDayPredicate: (currentSelectedDate) {
// as per the documentation 'selectedDayPredicate' needs to determine
// current selected day
return (isSameDay(
selectedCalendarDate!, currentSelectedDate));
},
onDaySelected: (selectedDay, focusedDay) {
// as per the documentation
if (!isSameDay(selectedCalendarDate, selectedDay)) {
setState(() {
selectedCalendarDate = selectedDay;
_focusedCalendarDate = focusedDay;
});
}
},
),
),
..._listOfDayEvents(selectedCalendarDate!).map(
(myEvents) => ListTile(
leading: const Icon(
Icons.done,
color: AppColors.eggPlant,
),
title: Padding(
padding: const EdgeInsets.only(bottom: 8.0),
child: Text('Event Title: ${myEvents.eventTitle}'),
),
subtitle: Text('Description: ${myEvents.eventDescp}'),
),
),
],
),
),
);
}
}
class MyEvents {
final String eventTitle;
final String eventDescp;
MyEvents({required this.eventTitle, required this.eventDescp});
@override
String toString() => eventTitle;
}
@AlexsandroHonorato
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Please help, how get data in Firebase for _listOfDayEvents, you understend?

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