Flutter date picker package for web application

Showcase

📅 showWebDatePicker

A customizable date picker widget for Flutter Web that supports both single-date and range selection. It offers extensive appearance and behavior customization for seamless integration into your UI.

✅ Purpose

Displays a date picker interface and returns a Future<DateTimeRange?> that resolves to the selected date(s) or null if canceled.

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🧩 Parameters

🗓️ Date Configuration

• context (required): The build context.
• initialDate (required): The default date shown when the picker opens.
• initialDate2: Optional second date for range selection.
• firstDate: Earliest selectable date.
• lastDate: Latest selectable date.

🎨 Appearance Customization

• width: Width of the picker.
• weekendDaysColor: Color used for weekend days.
• selectedDayColor: Color for selected date(s).
• confirmButtonColor: Color of the confirm button.
• cancelButtonColor: Color of the cancel button.
• backgroundColor: Background color of the picker.

📐 Layout & View

• firstDayOfWeekIndex: Index of the first day of the week (e.g., 0 = Sunday).
• initViewMode: Initial view mode (PickerViewMode.day, month, etc.).
• initSize: Initial size of the picker widget.
• asDialog: If true, shows the picker as a modal dialog.

🔄 Interaction Behavior

• enableRangeSelection: Enables selecting a date range.
• blockedDates: List of dates that are disabled and cannot be selected.
• showTodayButton: Displays a button to jump to today's date.
• showResetButton: Displays a button to reset the selection.
• autoCloseOnDateSelect: Automatically closes the picker after selecting a date.
  Note: This only works when enableRangeSelection is false (i.e., single date selection mode).
• onReset: Callback triggered when the reset button is pressed.

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🔁 Return Value

Returns a Future<DateTimeRange?>:

• If a date or range is selected → returns DateTimeRange.
• If the user cancels → returns null.

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💡 Example Usage

    final textFieldKey = GlobalKey();
    ...
    TextField(
        key: textFieldKey,
        controller: _controller,
        readOnly: true,
        onTap: () async {
        final pickedDateRange = await showWebDatePicker(
            context: textFieldKey.currentContext!,
            initialDate: _selectedDateRange.start,
            initialDate2: _selectedDateRange.end,
            firstDate: DateTime.now().subtract(const Duration(days: 7)),
            lastDate: DateTime.now().add(const Duration(days: 14000)),
            width: 400,
            weekendDaysColor: Colors.red,
            // selectedDayColor: Colors.brown,
            // backgroundColor: Colors.white,
            // firstDayOfWeekIndex: 1,
            asDialog: _asDialog,
            enableRangeSelection: _enableRangeSelection,
            blockedDates: [DateTime.now().add(Duration(days: 2))],
            initViewMode: _initViewMode,
            // initSize: Size(370, 350),
            showTodayButton: _showTodayButton,
            showResetButton: _showResetButton,
            autoCloseOnDateSelect: _autoCloseOnDateSelect,
            // onReset: () {
            //   print('Date selection reset');
            // },
        )
    ...