custom date picker - flutter

 

import 'package:flutter/material.dart';

import 'package:intl/intl.dart';

import 'package:shared_preferences/shared_preferences.dart';

class MyDateTimePicker extends StatefulWidget {

  final Function(DateTime) onDateSelected;

  MyDateTimePicker({required this.onDateSelected});

  @override

  _MyDateTimePickerState createState() => _MyDateTimePickerState();

}

class _MyDateTimePickerState extends State<MyDateTimePicker> {

  DateTime selectedDate = DateTime.now();

  bool showYearPicker = false;

  bool showMonthPicker = false;

  @override

  Widget build(BuildContext context) {

    return GestureDetector(

      onTap: () => _showDatePicker(context),

      child: Container(

        decoration: BoxDecoration(

          border: Border.all(color: Colors.grey),

          borderRadius: BorderRadius.circular(8.0),

        ),

        child: Row(

          mainAxisAlignment: MainAxisAlignment.spaceAround,

          children: [

            _buildPickerItem(

              DateFormat('y').format(selectedDate),

            ),

            _buildPickerItem(

              DateFormat('MMMM').format(selectedDate),

            ),

            _buildPickerItem(

              DateFormat('dd').format(selectedDate),

            ),

          ],

        ),

      ),

    );

  }

  Widget _buildPickerItem(String text) {

    return Container(

      padding: EdgeInsets.all(8.0),

      child: Text(

        text,

        style: TextStyle(fontSize: 18.0),

      ),

    );

  }

  Future<void> _showDatePicker(BuildContext context) async {

    print("showdate");

    final DateTime? pickedDate = await showDatePicker(

      context: context,

      initialDate: selectedDate,

      firstDate: DateTime(selectedDate.year - 1),

      lastDate: DateTime(selectedDate.year + 1),

    );

    if (pickedDate != null && pickedDate != selectedDate) {

      setState(() {

        selectedDate = pickedDate;

      });

      saveSelectedDate(selectedDate);

      // Call the callback to notify the parent widget of the selected date

      widget.onDateSelected(selectedDate);

    }

  }

}

void saveSelectedDate(DateTime date) async {

  SharedPreferences prefs = await SharedPreferences.getInstance();

  await prefs.setString('selectedDate', date.toIso8601String());

}