region_settings 1.4.1
region_settings: ^1.4.1 copied to clipboard
A Flutter plugin to get device region settings such as measurement system, temperature units, and date/number formats.
/*
*******************************************************************************
Package: region_settings_example
Class: main.dart
Author: Nathan Cosgray | https://www.nathanatos.com
-------------------------------------------------------------------------------
Copyright (c) 2024 Nathan Cosgray. All rights reserved.
This source code is licensed under the BSD-style license found in LICENSE.
*******************************************************************************
*/
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:region_settings/region_settings.dart';
late RegionSettings regionSettings;
void main() async {
WidgetsFlutterBinding.ensureInitialized();
regionSettings = await RegionSettings.getSettings();
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
String? _locale;
TemperatureUnit? _temperatureUnits;
bool? _usesMetricSystem;
int? _firstDayOfWeek;
String? _dateFormatShort;
String? _dateFormatMedium;
String? _dateFormatLong;
String? _numberFormatInteger;
String? _numberFormatDecimal;
@override
void initState() {
super.initState();
loadRegionSettings();
}
// Platform messages are asynchronous, so we initialize in an async method.
Future<void> loadRegionSettings() async {
regionSettings = await RegionSettings.getSettings();
String locale = regionSettings.locale;
TemperatureUnit temperatureUnits = regionSettings.temperatureUnits;
bool usesMetricSystem = regionSettings.usesMetricSystem;
int firstDayOfWeek = regionSettings.firstDayOfWeek;
String dateFormatShort = regionSettings.dateFormat.short;
String dateFormatMedium = regionSettings.dateFormat.medium;
String dateFormatLong = regionSettings.dateFormat.long;
String numberFormatInteger = regionSettings.numberFormat.integer;
String numberFormatDecimal = regionSettings.numberFormat.decimal;
// If the widget was removed from the tree while the asynchronous platform
// message was in flight, we want to discard the reply rather than calling
// setState to update our non-existent appearance.
if (!mounted) return;
setState(() {
_locale = locale;
_temperatureUnits = temperatureUnits;
_usesMetricSystem = usesMetricSystem;
_firstDayOfWeek = firstDayOfWeek;
_dateFormatShort = dateFormatShort;
_dateFormatMedium = dateFormatMedium;
_dateFormatLong = dateFormatLong;
_numberFormatInteger = numberFormatInteger;
_numberFormatDecimal = numberFormatDecimal;
});
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('RegionSettings example app'),
),
body: SingleChildScrollView(
child: Column(
children: [
Padding(
padding: const EdgeInsets.all(10.0),
child: GridView.count(
physics: const ScrollPhysics(),
crossAxisCount: 2,
childAspectRatio: 4.0,
shrinkWrap: true,
children: [
const Text('locale:'),
Text(
'$_locale',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('temperatureUnits:'),
Text(
'$_temperatureUnits',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('usesMetricSystem:'),
Text(
'$_usesMetricSystem',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('firstDayOfWeek:'),
Text(
'$_firstDayOfWeek',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('firstDayOfWeek is Monday:'),
Text(
'${_firstDayOfWeek == DateTime.monday}',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('dateFormat.short:'),
Text(
'$_dateFormatShort',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('formatDate() as short:'),
Text(
regionSettings.formatDate(
DateTime.now(),
dateStyle: DateStyle.short,
),
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('dateFormat.medium:'),
Text(
'$_dateFormatMedium',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('formatDate() as medium:'),
Text(
regionSettings.formatDate(
DateTime.now(),
dateStyle: DateStyle.medium,
),
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('dateFormat.long:'),
Text(
'$_dateFormatLong',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('formatDate() as long:'),
Text(
regionSettings.formatDate(
DateTime.now(),
dateStyle: DateStyle.long,
),
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('numberFormat.integer:'),
Text(
'$_numberFormatInteger',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('formatNumber() as integer:'),
Text(
regionSettings.formatNumber(
1234567,
),
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('numberFormat.decimal:'),
Text(
'$_numberFormatDecimal',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Text('formatNumber() as decimal:'),
Text(
regionSettings.formatNumber(
1234567.89,
decimalPlaces: 2,
useGrouping: true,
),
style: const TextStyle(fontWeight: FontWeight.bold),
),
],
),
),
FilledButton.tonal(
onPressed: () => loadRegionSettings(),
child: const Text('Reload Values'),
)
],
),
),
),
);
}
}