115 lines
4.0 KiB
Dart
115 lines
4.0 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:intl/intl.dart';
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import '../utils/gregorian_date.dart';
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class DayScreen extends StatefulWidget {
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const DayScreen({Key? key}) : super(key: key);
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@override
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State<DayScreen> createState() => _DayScreenState();
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}
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class _DayScreenState extends State<DayScreen> {
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DateTime? _selectedDate;
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dynamic period;
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@override
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Widget build(BuildContext context) {
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void showDateDialog() async {
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final DateTime? pickedDate = await showDatePicker(
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context: context,
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initialDate: DateTime.now(),
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firstDate: DateTime(1970),
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lastDate: DateTime(2100),
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locale: const Locale("en", "GB"),
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);
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if (pickedDate != null) {
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setState(() {
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_selectedDate = pickedDate;
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});
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}
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}
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final pickedDate = _selectedDate ?? DateTime.now();
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// List<int> diffYMD = GregorianDate.differenceInYearsMonthsDays(DateTime.now(), pickedDate);
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int diffD = GregorianDate.differenceInDays(DateTime.now(), pickedDate);
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List<int> diffYMD = GregorianDate.differenceInYearsMonthsDays(diffD);
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if (pickedDate.isBefore(DateTime.now())) {
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period = "in the past";
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} else {
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period = "to the future";
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}
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dynamic pickedDateString =
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DateFormat("EEEE, d MMM yyyy").format(pickedDate).toString();
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dynamic todayString =
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DateFormat("EEEE, d MMM yyyy").format(DateTime.now()).toString();
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return Scaffold(
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appBar: AppBar(
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title: const Text("Day Calculator"),
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elevation: 4,
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shadowColor: Theme.of(context).shadowColor,
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),
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body: _selectedDate == null
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? const Padding(
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padding: EdgeInsets.all(30),
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child: Center(
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child: Text('Select the date by using the date picker button'),
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),
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)
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: Padding(
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padding: const EdgeInsets.all(30),
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child: Center(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text("Dates",
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style: TextStyle(
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fontSize: 30, fontWeight: FontWeight.bold)),
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const Text("Chosen Date", style: TextStyle(fontSize: 14)),
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Text(
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pickedDateString,
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style: const TextStyle(
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fontSize: 22, fontWeight: FontWeight.bold),
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),
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const SizedBox(height: 5),
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const Text("Today", style: TextStyle(fontSize: 14)),
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Text(
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todayString,
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style: const TextStyle(
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fontSize: 22, fontWeight: FontWeight.bold),
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),
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const SizedBox(height: 20),
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const Text("Difference",
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style: TextStyle(
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fontSize: 30, fontWeight: FontWeight.bold)),
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Text(pickedDateString,
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style: const TextStyle(fontSize: 14)),
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Text(
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"${diffYMD[3]} days \n${diffYMD[2]} weeks \n${diffYMD[1]} months\n${diffYMD[0]} years",
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style: const TextStyle(
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fontSize: 24, fontWeight: FontWeight.bold)),
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Text(period, style: const TextStyle(fontSize: 14)),
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const SizedBox(
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height: 20,
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),
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const Text("Or in total is",
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style: TextStyle(fontSize: 14)),
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Text("$diffD days $period",
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style: const TextStyle(
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fontSize: 24, fontWeight: FontWeight.bold)),
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],
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),
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)),
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// This button is used to show the date range picker
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floatingActionButton: FloatingActionButton(
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onPressed: showDateDialog,
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child: const Icon(Icons.today),
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),
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);
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}
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}
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