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initiate date picker from predefined list #34

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initiate date picker from predefined list #34

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30 changes: 30 additions & 0 deletions example/lib/main.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -78,6 +78,36 @@ class _MyHomePageState extends State<MyHomePage> {
},
),
),
Padding(
padding: EdgeInsets.all(30),
),
Text("DatePicker from predefined list:"),
Padding(
padding: EdgeInsets.all(20),
),
Container(
child: DatePicker.fromList(
[
DateTime(2020, 1, 1),
DateTime(2020, 2, 1),
DateTime(2020, 3, 1),
DateTime(2020, 4, 1),
DateTime(2020, 5, 1),
DateTime(2020, 6, 1),
DateTime(2020, 7, 1),
DateTime(2020, 8, 1),
DateTime(2020, 9, 1),
DateTime(2020, 10, 1),
DateTime(2020, 11, 1),
DateTime(2020, 12, 1),
],
width: 60,
height: 80,
initialSelectedDate: DateTime(2020, 4, 1),
selectionColor: Colors.black,
selectedTextColor: Colors.white,
),
),
],
),
));
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32 changes: 30 additions & 2 deletions lib/date_picker_widget.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,9 @@ class DatePicker extends StatefulWidget {
/// Locale for the calendar default: en_us
final String locale;

/// Predefined date list
List<DateTime> dateList;

DatePicker(
this.startDate, {
Key key,
Expand All @@ -64,6 +67,26 @@ class DatePicker extends StatefulWidget {
this.locale = "en_US",
}) : super(key: key);


// Create date picker from predefined list
DatePicker.fromList(this.dateList, {
Key key,
this.width = 60,
this.height = 80,
this.controller,
this.monthTextStyle = defaultMonthTextStyle,
this.dayTextStyle = defaultDayTextStyle,
this.dateTextStyle = defaultDateTextStyle,
this.selectedTextColor = Colors.white,
this.selectionColor = AppColors.defaultSelectionColor,
this.initialSelectedDate,
this.onDateChange,
this.locale = "en_US",
}) : assert(dateList != null && dateList.length > 0),
this.startDate = dateList[0],
this.daysCount = dateList.length,
super(key: key);

@override
State<StatefulWidget> createState() => new _DatePickerState();
}
Expand Down Expand Up @@ -123,8 +146,13 @@ class _DatePickerState extends State<DatePicker> {
// get the date object based on the index position
// if widget.startDate is null then use the initialDateValue
DateTime date;
DateTime _date = widget.startDate.add(Duration(days: index));
date = new DateTime(_date.year, _date.month, _date.day);

if(widget.dateList != null && widget.dateList.length > 0) {
date = widget.dateList[index];
} else {
DateTime _date = widget.startDate.add(Duration(days: index));
date = new DateTime(_date.year, _date.month, _date.day);
}

// Check if this date is the one that is currently selected
bool isSelected = _currentDate != null? _compareDate(date, _currentDate) : false;
Expand Down