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import 'package:hive/hive.dart';

part 'data_model.g.dart'; 

@HiveType(typeId: 0)
class DataModel extends HiveObject{
  @HiveField(0)
  final String? item;
  @HiveField(1)
  final int? quantity;

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 showModalBottomSheet(
                      context: context,
                      builder: (context) {
                        return Scaffold( //scaffold provides us the ability to show snackbar in the modal bottom sheet
                          body: Column(
                            mainAxisSize: MainAxisSize.min,
                            children: [
                              const ListTile(
                                leading: Icon(Icons.person),
                                title: Text("Profile"),

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if(pickedDate != null ){
                      print(pickedDate);  //get the picked date in the format => 2022-07-04 00:00:00.000
                      String formattedDate = DateFormat('yyyy-MM-dd').format(pickedDate); // format date in required form here we use yyyy-MM-dd that means time is removed
                      print(formattedDate); //formatted date output using intl package =>  2022-07-04
                        //You can format date as per your need

                      setState(() {
                         dateController.text = formattedDate; //set foratted date to TextField value. 
                      });
                  }else{

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TextField(
        controller: dateController, //editing controller of this TextField
          decoration: const InputDecoration( 
                    icon: Icon(Icons.calendar_today), //icon of text field
                   labelText: "Enter Date" //label text of field
            ),
           readOnly: true,  // when true user cannot edit text 
           onTap: () async {
                  //when click we have to show the datepicker
            }

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import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:theme_changer/model_theme.dart';

class HomePage extends StatefulWidget {
  const HomePage({Key? key}) : super(key: key);

  @override
  MyHomePageState createState() => MyHomePageState();
}

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import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:theme_changer/model_theme.dart';

import 'homepage.dart';

void main() {
  runApp(MyApp());
}

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import 'package:flutter/material.dart';
import 'mytheme_preference.dart';

class ModelTheme extends ChangeNotifier {
  late bool _isDark;
  late MyThemePreferences _preferences;
  bool get isDark => _isDark;

  ModelTheme() {
    _isDark = false;

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import 'package:shared_preferences/shared_preferences.dart';

class MyThemePreferences {
  static const THEME_KEY = "theme_key";

  setTheme(bool value) async {
    SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
    sharedPreferences.setBool(THEME_KEY, value);
  }

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static Future<List<Map<String, dynamic>>> getItems() async {
    final db = await DatabaseHelper.db();
    return db.query('items', orderBy: "id");
  }

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static Future<int> createItem(String? title, String? descrption) async {
    final db = await DatabaseHelper.db();

    final data = {'title': title, 'description': descrption};
    final id = await db.insert('items', data,
        conflictAlgorithm: sql.ConflictAlgorithm.replace);
    return id;
  }