nepali_kit 1.0.2 
nepali_kit: ^1.0.2 copied to clipboard
Comprehensive BS/AD calendar and Nepali localization toolkit for Dart and Flutter.
import 'package:flutter/material.dart';
import 'package:nepali_kit/nepali_kit.dart';
void main() {
runApp(const NepaliKitExampleApp());
}
class NepaliKitExampleApp extends StatefulWidget {
const NepaliKitExampleApp({super.key});
@override
State<NepaliKitExampleApp> createState() => _NepaliKitExampleAppState();
}
class _NepaliKitExampleAppState extends State<NepaliKitExampleApp> {
ThemeMode _themeMode = ThemeMode.system;
void _toggleTheme() {
setState(() {
_themeMode =
_themeMode == ThemeMode.dark ? ThemeMode.light : ThemeMode.dark;
});
}
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Nepali Kit Showcase',
debugShowCheckedModeBanner: true,
themeMode: _themeMode,
theme: ThemeData(
useMaterial3: true,
brightness: Brightness.light,
colorScheme: ColorScheme.fromSeed(
seedColor: const Color(0xFFE65100), // Rich Nepali Ochre/Vermilion
brightness: Brightness.light,
),
),
darkTheme: ThemeData(
useMaterial3: true,
brightness: Brightness.dark,
colorScheme: ColorScheme.fromSeed(
seedColor: const Color(0xFFE65100),
brightness: Brightness.dark,
),
),
home: ShowcaseCatalogScreen(
isDark: _themeMode == ThemeMode.dark,
onToggleTheme: _toggleTheme,
),
);
}
}
/// Catalog Screen listing all sections requested by the user.
class ShowcaseCatalogScreen extends StatefulWidget {
final bool isDark;
final VoidCallback onToggleTheme;
const ShowcaseCatalogScreen({
super.key,
required this.isDark,
required this.onToggleTheme,
});
@override
State<ShowcaseCatalogScreen> createState() => _ShowcaseCatalogScreenState();
}
class _ShowcaseCatalogScreenState extends State<ShowcaseCatalogScreen> {
Language _language = Language.nepali;
void _toggleLanguage() {
setState(() {
_language = _language.isNepali ? Language.english : Language.nepali;
});
}
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
// List of catalog sections in exact order
final sections = [
_CatalogItem(
title: _language.isNepali ? 'आधारभूत पात्रो' : 'Basic Calendar',
subtitle: _language.isNepali
? 'सरल नेपाली क्यालेन्डर र महिना नेभिगेसन'
: 'Simple Nepali calendar and month navigation',
icon: Icons.calendar_month,
badge: 'Core UI',
builder: (ctx) => BasicCalendarScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'मिति रूपान्तरण' : 'Date Conversion',
subtitle: _language.isNepali
? 'वि.सं. ↔ ई.सं. दुई-तर्फी रूपान्तरण'
: 'Bi-directional BS ↔ AD conversion engine',
icon: Icons.sync_alt,
badge: 'Conversion',
builder: (ctx) => DateConversionScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'मिति ढाँचा' : 'Date Formatting',
subtitle: _language.isNepali
? 'ढाँचा ढाँचाहरू (yyyy-MM-dd, नेपाली/अंग्रेजी)'
: 'Tokens, Devanagari numerals, and dual format',
icon: Icons.text_format,
badge: 'Format',
builder: (ctx) => DateFormattingScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'नेपाली अंकहरू' : 'Nepali Numbers',
subtitle: _language.isNepali
? 'देवनागरी अंक, दक्षिण एसियाली अल्पविराम, र शब्दहरू'
: 'Devanagari digits, South Asian grouping & words',
icon: Icons.pin,
badge: 'Numbers',
builder: (ctx) => NepaliNumbersScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'मुद्रा ढाँचा' : 'Currency',
subtitle: _language.isNepali
? 'नेपाली रुपैयाँ (रु / Rs.) ढाँचा र शब्दमा रूपान्तरण'
: 'Nepali Rupee (NPR) formatting & currency words',
icon: Icons.payments,
badge: 'Finance',
builder: (ctx) => CurrencyScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'आर्थिक वर्ष' : 'Fiscal Year',
subtitle: _language.isNepali
? 'नेपाल सरकार आर्थिक वर्ष र त्रैमासिक (Q1-Q4)'
: 'Nepal Government Fiscal Year (Shrawan 1 - Ashadh end)',
icon: Icons.account_balance,
badge: 'Fiscal',
builder: (ctx) => FiscalYearScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'चाडपर्व तथा बिदा' : 'Holidays',
subtitle: _language.isNepali
? 'राष्ट्रिय सार्वजनिक बिदा, दसैं, तिहार, आदि'
: 'National gazetted holidays & festival lookup',
icon: Icons.celebration,
badge: 'Holidays',
builder: (ctx) => HolidaysScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'वि.सं. क्यालेन्डर' : 'BS Calendar',
subtitle: _language.isNepali
? 'विक्रम संवत् पात्रो (३०/३१/३२ दिनको यथार्थ महिना)'
: 'Bikram Sambat calendar with true dynamic month days',
icon: Icons.event,
badge: 'Calendar',
builder: (ctx) => BsCalendarScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'ई.सं. क्यालेन्डर' : 'AD Calendar',
subtitle: _language.isNepali
? 'ग्रेगोरियन क्यालेन्डर (नेपाली भाषा वा अंग्रेजी)'
: 'Gregorian calendar view with full styling parity',
icon: Icons.date_range,
badge: 'Calendar',
builder: (ctx) => AdCalendarScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali
? 'वि.सं. + ई.सं. संयुक्त पात्रो'
: 'BS + AD Dual Calendar',
subtitle: _language.isNepali
? 'एउटै बाकसमा दुवै मिति एकसाथ प्रदर्शन'
: 'Simultaneous BS and AD date display per cell',
icon: Icons.layers,
badge: 'Dual View',
builder: (ctx) => DualCalendarScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'मिति चयनकर्ता' : 'Date Picker',
subtitle: _language.isNepali
? 'शो नेपाली डेट पिकर (Material 3 डाइलग)'
: 'showNepaliDatePicker dialog & bottom picker',
icon: Icons.edit_calendar,
badge: 'Picker',
builder: (ctx) => DatePickerScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'दायरा चयनकर्ता' : 'Date Range Picker',
subtitle: _language.isNepali
? 'सुरु र अन्त्य मिति दायरा चयन'
: 'showNepaliDateRangePicker with day spans',
icon: Icons.date_range_outlined,
badge: 'Picker',
builder: (ctx) => DateRangePickerScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'महिना चयनकर्ता' : 'Month Picker',
subtitle: _language.isNepali
? 'बैशाखदेखि चैतसम्मका १२ महिनाहरूको इनलाइन ग्रिड'
: 'Inline 12-month picker widget (Baisakh-Chaitra)',
icon: Icons.view_module,
badge: 'Widget',
builder: (ctx) => MonthPickerScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'वर्ष चयनकर्ता' : 'Year Picker',
subtitle: _language.isNepali
? '१९७५ देखि २०९९ सम्म वर्ष चयन'
: 'Standalone year selector widget (1975-2099 BS)',
icon: Icons.calendar_view_month,
badge: 'Widget',
builder: (ctx) => YearPickerScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'घटना तथा कार्यक्रम' : 'Events',
subtitle: _language.isNepali
? 'एकै दिनमा बहु-कार्यक्रम, बिन्दु सूचक र विवरण'
: 'Multi-events per date with custom category colors',
icon: Icons.bookmark,
badge: 'Events',
builder: (ctx) => EventsScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'निष्क्रिय मितिहरू' : 'Disabled Dates',
subtitle: _language.isNepali
? 'शनिबार, विगतका दिन, वा सर्त अनुसार चयन रोक्ने'
: 'Selectable day predicates, weekends & bound limits',
icon: Icons.block,
badge: 'Predicate',
builder: (ctx) => DisabledDatesScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'कस्टम डे बिल्डर' : 'Custom Day Builder',
subtitle: _language.isNepali
? 'आफ्नै अनुकूल डिजाइन र सेल रेन्डरर'
: 'Full custom rendering for calendar day cells',
icon: Icons.brush,
badge: 'UI Custom',
builder: (ctx) => CustomDayBuilderScreen(language: _language),
),
_CatalogItem(
title: _language.isNepali ? 'सापेक्ष समय' : 'Relative Time',
subtitle: _language.isNepali
? 'नेपाली मोमेन्ट ("भर्खरै", "३ दिन अगाडि", "भोलि")'
: 'NepaliMoment relative timestamps & human moments',
icon: Icons.update,
badge: 'Moment',
builder: (ctx) => RelativeTimeScreen(language: _language),
),
_CatalogItem(
title:
_language.isNepali ? 'युनिकोड तथा पाठ' : 'Text / Unicode Utilities',
subtitle: _language.isNepali
? 'अंक पत्ता लगाउने, युनिकोड रूपान्तरण, र देवनागरी'
: 'Devanagari digit detection, transliteration & cleaners',
icon: Icons.spellcheck,
badge: 'Unicode',
builder: (ctx) => TextUnicodeScreen(language: _language),
),
];
return Scaffold(
appBar: AppBar(
title: Text(
_language.isNepali
? 'नेपाली किट (nepali_kit)'
: 'Nepali Kit Showcase',
style: const TextStyle(fontWeight: FontWeight.bold),
),
actions: [
IconButton(
tooltip: _language.isNepali ? 'English' : 'नेपाली',
icon: CircleAvatar(
radius: 14,
backgroundColor: theme.colorScheme.primaryContainer,
child: Text(
_language.isNepali ? 'EN' : 'ने',
style: TextStyle(
fontSize: 12,
fontWeight: FontWeight.bold,
color: theme.colorScheme.onPrimaryContainer,
),
),
),
onPressed: _toggleLanguage,
),
IconButton(
tooltip: widget.isDark ? 'Light Mode' : 'Dark Mode',
icon: Icon(widget.isDark ? Icons.light_mode : Icons.dark_mode),
onPressed: widget.onToggleTheme,
),
],
),
body: ListView(
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
children: [
// Header hero banner
Container(
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
gradient: LinearGradient(
colors: [
theme.colorScheme.primary,
theme.colorScheme.secondary,
],
begin: Alignment.topLeft,
end: Alignment.bottomRight,
),
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: theme.colorScheme.primary.withValues(alpha: 0.25),
blurRadius: 10,
offset: const Offset(0, 4),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Container(
padding: const EdgeInsets.all(10),
decoration: BoxDecoration(
color: Colors.white.withValues(alpha: 0.2),
borderRadius: BorderRadius.circular(12),
),
child: const Icon(
Icons.auto_stories,
color: Colors.white,
size: 28,
),
),
const SizedBox(width: 14),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
_language.isNepali
? 'नेपाली किट प्रदर्शनी (nepali_kit_example)'
: 'Nepali Kit Showcase',
style: const TextStyle(
color: Colors.white,
fontSize: 18,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 4),
Text(
_language.isNepali
? '१९ वटै मोड्युल तथा फिचरहरूको विस्तृत डेमो'
: 'All 19 Modules & Interactive Feature Demos',
style: const TextStyle(
color: Colors.white70,
fontSize: 13,
),
),
],
),
),
],
),
const SizedBox(height: 16),
Wrap(
spacing: 8,
runSpacing: 6,
children: [
_buildPill(
Icons.calendar_today,
_language.isNepali
? 'आज: ${const NepaliDateFormat("yyyy MMMM dd, EEEE", Language.nepali).format(NepaliDate.now())}'
: 'Today: ${const NepaliDateFormat("yyyy MMMM dd, EEEE", Language.english).format(NepaliDate.now())}',
),
_buildPill(
Icons.account_balance,
_language.isNepali
? 'आ.व.: ${NepaliFiscalYear.current().label}'
: 'FY: ${NepaliFiscalYear.current().labelEnglish}',
),
],
),
],
),
),
const SizedBox(height: 20),
Text(
_language.isNepali ? 'मोड्युल तथा फिचरहरू' : 'Catalog of Features',
style: theme.textTheme.titleMedium?.copyWith(
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 10),
...sections.map((sec) {
return Card(
margin: const EdgeInsets.only(bottom: 10),
elevation: 0.5,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(14),
side: BorderSide(
color:
theme.colorScheme.outlineVariant.withValues(alpha: 0.5),
),
),
child: ListTile(
contentPadding: const EdgeInsets.symmetric(
horizontal: 16,
vertical: 6,
),
leading: CircleAvatar(
radius: 22,
backgroundColor: theme.colorScheme.primaryContainer,
child: Icon(
sec.icon,
color: theme.colorScheme.onPrimaryContainer,
size: 22,
),
),
title: Row(
children: [
Expanded(
child: Text(
sec.title,
style: const TextStyle(
fontWeight: FontWeight.bold,
fontSize: 15,
),
),
),
Container(
padding: const EdgeInsets.symmetric(
horizontal: 8,
vertical: 2,
),
decoration: BoxDecoration(
color: theme.colorScheme.surfaceContainerHighest,
borderRadius: BorderRadius.circular(8),
),
child: Text(
sec.badge,
style: TextStyle(
fontSize: 10,
fontWeight: FontWeight.w600,
color: theme.colorScheme.onSurfaceVariant,
),
),
),
],
),
subtitle: Padding(
padding: const EdgeInsets.only(top: 4),
child: Text(
sec.subtitle,
style: TextStyle(
fontSize: 12,
color: theme.colorScheme.onSurfaceVariant,
),
),
),
trailing: const Icon(Icons.arrow_forward_ios, size: 14),
onTap: () {
Navigator.push(
context,
MaterialPageRoute(builder: sec.builder),
);
},
),
);
}),
const SizedBox(height: 20),
],
),
);
}
Widget _buildPill(IconData icon, String text) {
return Container(
padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
decoration: BoxDecoration(
color: Colors.black.withValues(alpha: 0.18),
borderRadius: BorderRadius.circular(20),
),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(icon, size: 14, color: Colors.white),
const SizedBox(width: 6),
Text(
text,
style: const TextStyle(color: Colors.white, fontSize: 12),
),
],
),
);
}
}
class _CatalogItem {
final String title;
final String subtitle;
final IconData icon;
final String badge;
final WidgetBuilder builder;
_CatalogItem({
required this.title,
required this.subtitle,
required this.icon,
required this.badge,
required this.builder,
});
}
// ============================================================================
// 1. BASIC CALENDAR SCREEN
// ============================================================================
class BasicCalendarScreen extends StatefulWidget {
final Language language;
const BasicCalendarScreen({super.key, required this.language});
@override
State<BasicCalendarScreen> createState() => _BasicCalendarScreenState();
}
class _BasicCalendarScreenState extends State<BasicCalendarScreen> {
late NepaliDate _selectedDate;
@override
void initState() {
super.initState();
_selectedDate = NepaliDate.now();
}
@override
Widget build(BuildContext context) {
final daysInCurrentMonth =
BsCalendarData.getDaysInMonth(_selectedDate.year, _selectedDate.month);
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'आधारभूत पात्रो (Basic Calendar)'
: 'Basic Calendar'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
NepaliCalendarView(
selectedDate: _selectedDate,
language: widget.language,
onDateSelected: (date) {
setState(() => _selectedDate = date);
},
),
const SizedBox(height: 16),
Card(
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
widget.language.isNepali
? 'छानिएको मिति जानकारी'
: 'Selected Date Information',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Divider(),
_infoRow(
widget.language.isNepali ? 'वि.सं. मिति' : 'BS Date',
NepaliDateFormat('yyyy MMMM dd, EEEE', widget.language)
.format(_selectedDate),
),
_infoRow(
widget.language.isNepali ? 'ई.सं. मिति' : 'AD Date',
_selectedDate
.toDateTime()
.toIso8601String()
.substring(0, 10),
),
_infoRow(
widget.language.isNepali
? 'महिनाको कुल दिन'
: 'Days in Month',
widget.language.isNepali
? '${NepaliDigits.toNepali(daysInCurrentMonth)} दिन'
: '$daysInCurrentMonth days',
),
],
),
),
),
],
),
);
}
}
// ============================================================================
// 2. DATE CONVERSION SCREEN
// ============================================================================
class DateConversionScreen extends StatefulWidget {
final Language language;
const DateConversionScreen({super.key, required this.language});
@override
State<DateConversionScreen> createState() => _DateConversionScreenState();
}
class _DateConversionScreenState extends State<DateConversionScreen> {
NepaliDate _bsDate = NepaliDate(2082, 6, 31); // Ashwin 31, 2082
late DateTime _adDate;
@override
void initState() {
super.initState();
_adDate = _bsDate.toDateTime();
}
void _onAdChanged(DateTime newAd) {
setState(() {
_adDate = newAd;
_bsDate = NepaliDate.fromDateTime(newAd);
});
}
void _onBsChanged(NepaliDate newBs) {
setState(() {
_bsDate = newBs;
_adDate = newBs.toDateTime();
});
}
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'मिति रूपान्तरण (Date Conversion)'
: 'Date Conversion'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
Card(
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
const Icon(Icons.sync_alt, color: Colors.orange),
const SizedBox(width: 8),
Text(
widget.language.isNepali
? 'द्वि-दिशात्मक परिशुद्ध रूपान्तरण'
: 'Bi-directional Pure Conversion',
style: const TextStyle(fontWeight: FontWeight.bold),
),
],
),
const SizedBox(height: 8),
Text(
widget.language.isNepali
? 'वि.सं. बाट ई.सं. र ई.सं. बाट वि.सं. गणितीय शुद्धताका साथ।'
: 'Accurate BS ↔ AD conversion with zero loss.',
style: TextStyle(color: theme.colorScheme.onSurfaceVariant),
),
],
),
),
),
const SizedBox(height: 16),
// BS Section
Card(
child: ListTile(
title: Text(
widget.language.isNepali
? 'विक्रम संवत् (BS)'
: 'Bikram Sambat (BS)',
style: const TextStyle(fontWeight: FontWeight.bold),
),
subtitle: Text(
NepaliDateFormat('yyyy MMMM dd, EEEE', widget.language)
.format(_bsDate),
style: TextStyle(
color: theme.colorScheme.primary,
fontWeight: FontWeight.bold,
fontSize: 16,
),
),
trailing: ElevatedButton(
onPressed: () async {
final picked = await showNepaliDatePicker(
context: context,
initialDate: _bsDate,
language: widget.language,
);
if (picked != null) _onBsChanged(picked);
},
child: Text(widget.language.isNepali ? 'परिवर्तन' : 'Pick BS'),
),
),
),
const Center(
child: Padding(
padding: EdgeInsets.symmetric(vertical: 8),
child: Icon(Icons.swap_vert, size: 32),
),
),
// AD Section
Card(
child: ListTile(
title: Text(
widget.language.isNepali
? 'ईस्वी संवत् (AD)'
: 'Gregorian (AD)',
style: const TextStyle(fontWeight: FontWeight.bold),
),
subtitle: Text(
'${_adDate.year}-${_adDate.month.toString().padLeft(2, "0")}-${_adDate.day.toString().padLeft(2, "0")}',
style: TextStyle(
color: theme.colorScheme.secondary,
fontWeight: FontWeight.bold,
fontSize: 16,
),
),
trailing: ElevatedButton(
onPressed: () async {
final picked = await showDatePicker(
context: context,
initialDate: _adDate,
firstDate: DateTime(1918),
lastDate: DateTime(2043),
);
if (picked != null) _onAdChanged(picked);
},
child: Text(widget.language.isNepali ? 'परिवर्तन' : 'Pick AD'),
),
),
),
],
),
);
}
}
// ============================================================================
// 3. DATE FORMATTING SCREEN
// ============================================================================
class DateFormattingScreen extends StatelessWidget {
final Language language;
const DateFormattingScreen({super.key, required this.language});
@override
Widget build(BuildContext context) {
final now = NepaliDateTime.now();
final patterns = [
'yyyy-MM-dd',
'yyyy/MM/dd',
'dd MMMM yyyy',
'yyyy MMMM dd, EEEE',
'EEEE, MMMM dd, yyyy',
'hh:mm a',
'yyyy-MM-dd hh:mm:ss a',
];
return Scaffold(
appBar: AppBar(
title: Text(language.isNepali
? 'मिति ढाँचा (Date Formatting)'
: 'Date Formatting'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
Card(
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
language.isNepali
? 'नेपाली देवनागरी ढाँचाहरू'
: 'Nepali Devanagari Patterns',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Divider(),
...patterns.map((p) {
final formatted =
NepaliDateFormat(p, Language.nepali).format(now);
return Padding(
padding: const EdgeInsets.symmetric(vertical: 4),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(p,
style: const TextStyle(
fontFamily: 'monospace', fontSize: 13)),
Flexible(
child: Text(
formatted,
maxLines: 2,
overflow: TextOverflow.ellipsis,
style: const TextStyle(
fontWeight: FontWeight.bold,
),
),
),
],
),
);
}),
],
),
),
),
const SizedBox(height: 16),
Card(
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
language.isNepali
? 'अंग्रेजी ट्रान्सलिटरेसन ढाँचाहरू'
: 'English Transliteration Patterns',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Divider(),
...patterns.map((p) {
final formatted =
NepaliDateFormat(p, Language.english).format(now);
return Padding(
padding: const EdgeInsets.symmetric(vertical: 4),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(p,
style: const TextStyle(
fontFamily: 'monospace', fontSize: 13)),
Text(formatted,
style:
const TextStyle(fontWeight: FontWeight.bold)),
],
),
);
}),
],
),
),
),
],
),
);
}
}
// ============================================================================
// 4. NEPALI NUMBERS SCREEN
// ============================================================================
class NepaliNumbersScreen extends StatefulWidget {
final Language language;
const NepaliNumbersScreen({super.key, required this.language});
@override
State<NepaliNumbersScreen> createState() => _NepaliNumbersScreenState();
}
class _NepaliNumbersScreenState extends State<NepaliNumbersScreen> {
double _number = 1234567.89;
@override
Widget build(BuildContext context) {
final nepaliDigits = NepaliDigits.toNepali(_number.toInt());
final nepaliFormatted =
NepaliNumberFormat.format(_number, language: Language.nepali);
final englishFormatted =
NepaliNumberFormat.format(_number, language: Language.english);
final words =
NepaliNumberToWords.convert(_number, language: Language.nepali);
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'नेपाली अंकहरू (Nepali Numbers)'
: 'Nepali Numbers'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
Card(
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
widget.language.isNepali
? 'अंक परिवर्तन गर्नुहोस्'
: 'Adjust Number',
style: const TextStyle(fontWeight: FontWeight.bold),
),
Slider(
value: _number,
min: 0,
max: 10000000,
divisions: 100,
onChanged: (v) => setState(() => _number = v),
),
_infoRow(
widget.language.isNepali ? 'कच्चा मान (Raw)' : 'Raw Value',
_number.toStringAsFixed(2),
),
_infoRow(
widget.language.isNepali
? 'देवनागरी अंक (०-९)'
: 'Devanagari Digits',
nepaliDigits,
),
_infoRow(
widget.language.isNepali
? 'दक्षिण एसियाली अल्पविराम (नेपाली)'
: 'Nepali Grouping',
nepaliFormatted,
),
_infoRow(
widget.language.isNepali
? 'दक्षिण एसियाली अल्पविराम (अंग्रेजी)'
: 'English Grouping',
englishFormatted,
),
_infoRow(
widget.language.isNepali
? 'नेपाली अक्षरमा (In Words)'
: 'In Words',
words,
),
],
),
),
),
],
),
);
}
}
// ============================================================================
// 5. CURRENCY SCREEN
// ============================================================================
class CurrencyScreen extends StatefulWidget {
final Language language;
const CurrencyScreen({super.key, required this.language});
@override
State<CurrencyScreen> createState() => _CurrencyScreenState();
}
class _CurrencyScreenState extends State<CurrencyScreen> {
double _amount = 85450.50;
@override
Widget build(BuildContext context) {
final nepaliCurrency =
NepaliNumberFormat.currency(_amount, language: Language.nepali);
final englishCurrency =
NepaliNumberFormat.currency(_amount, language: Language.english);
final words =
NepaliNumberToWords.convert(_amount, language: Language.nepali);
return Scaffold(
appBar: AppBar(
title: Text(
widget.language.isNepali ? 'मुद्रा ढाँचा (Currency)' : 'Currency'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
Card(
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
widget.language.isNepali
? 'रकम परिवर्तन गर्नुहोस्'
: 'Adjust Amount',
style: const TextStyle(fontWeight: FontWeight.bold),
),
Slider(
value: _amount,
min: 100,
max: 1000000,
divisions: 100,
onChanged: (v) => setState(() => _amount = v),
),
_infoRow(
widget.language.isNepali
? 'नेपाली मुद्रा ढाँचा'
: 'Nepali Currency',
nepaliCurrency,
),
_infoRow(
widget.language.isNepali
? 'अंग्रेजी मुद्रा ढाँचा'
: 'English Currency',
englishCurrency,
),
_infoRow(
widget.language.isNepali
? 'रकम अक्षरमा (चेक/बिल प्रयोजन)'
: 'Words for Invoice/Cheque',
'$words रुपैयाँ मात्र',
),
],
),
),
),
],
),
);
}
}
// ============================================================================
// 6. FISCAL YEAR SCREEN
// ============================================================================
class FiscalYearScreen extends StatelessWidget {
final Language language;
const FiscalYearScreen({super.key, required this.language});
@override
Widget build(BuildContext context) {
final fy = NepaliFiscalYear.current();
final quarters = fy.quarters;
return Scaffold(
appBar: AppBar(
title: Text(language.isNepali
? 'आर्थिक वर्ष (Fiscal Year)'
: 'Nepali Fiscal Year'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
Card(
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
language.isNepali
? 'नेपाल सरकार आर्थिक वर्ष: ${fy.label}'
: 'Government of Nepal FY: ${fy.labelEnglish}',
style: const TextStyle(
fontWeight: FontWeight.bold,
fontSize: 16,
),
),
const Divider(),
_infoRow(
language.isNepali ? 'सुरु मिति' : 'Start Date',
'${NepaliDateFormat("yyyy-MM-dd", language).format(fy.startDate)} (${fy.adStartDate.toIso8601String().substring(0, 10)})',
),
_infoRow(
language.isNepali ? 'अन्त्य मिति' : 'End Date',
'${NepaliDateFormat("yyyy-MM-dd", language).format(fy.endDate)} (${fy.adEndDate.toIso8601String().substring(0, 10)})',
),
],
),
),
),
const SizedBox(height: 16),
Text(
language.isNepali
? 'त्रैमासिक विभाजन (Quarters)'
: 'Quarterly Breakdown (Q1 - Q4)',
style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 16),
),
const SizedBox(height: 8),
...quarters.map((q) {
return Card(
margin: const EdgeInsets.only(bottom: 8),
child: ListTile(
title: Text(
q.quarter.getName(language),
style: const TextStyle(fontWeight: FontWeight.bold),
),
subtitle: Text(
'${NepaliDateFormat("yyyy MMMM dd", language).format(q.startDate)} - ${NepaliDateFormat("yyyy MMMM dd", language).format(q.endDate)}',
),
),
);
}),
],
),
);
}
}
// ============================================================================
// 7. HOLIDAYS SCREEN
// ============================================================================
class HolidaysScreen extends StatelessWidget {
final Language language;
const HolidaysScreen({super.key, required this.language});
@override
Widget build(BuildContext context) {
final holidays = NepaliHolidayService.holidaysForYear(2082);
return Scaffold(
appBar: AppBar(
title: Text(language.isNepali
? 'चाडपर्व तथा बिदा (Holidays)'
: 'Holidays & Festivals'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
Text(
language.isNepali
? '२०८२ सालका प्रमुख सार्वजनिक बिदाहरू'
: 'Key Gazetted Holidays (2082 BS)',
style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 16),
),
const SizedBox(height: 12),
...holidays.map((h) {
return Card(
margin: const EdgeInsets.only(bottom: 8),
child: ListTile(
leading: CircleAvatar(
backgroundColor: h.isPublicHoliday
? Colors.red.withValues(alpha: 0.15)
: Colors.orange.withValues(alpha: 0.15),
child: Icon(
Icons.celebration,
color: h.isPublicHoliday ? Colors.red : Colors.orange,
),
),
title: Text(
h.getName(language),
style: const TextStyle(fontWeight: FontWeight.bold),
),
subtitle: Text(
NepaliDateFormat('yyyy MMMM dd, EEEE', language)
.format(h.date),
),
trailing: h.isPublicHoliday
? Chip(
label: Text(
language.isNepali ? 'सार्वजनिक' : 'Public',
style: const TextStyle(fontSize: 10),
),
backgroundColor: Colors.red.withValues(alpha: 0.1),
)
: null,
),
);
}),
],
),
);
}
}
// ============================================================================
// 8. BS CALENDAR SCREEN
// ============================================================================
class BsCalendarScreen extends StatefulWidget {
final Language language;
const BsCalendarScreen({super.key, required this.language});
@override
State<BsCalendarScreen> createState() => _BsCalendarScreenState();
}
class _BsCalendarScreenState extends State<BsCalendarScreen> {
late NepaliDate _date;
@override
void initState() {
super.initState();
// Default to Ashwin 2082 to demonstrate 31 days month
_date = NepaliDate(2082, 6, 15);
}
@override
Widget build(BuildContext context) {
final daysCount = BsCalendarData.getDaysInMonth(_date.year, _date.month);
final monthName = _date.nepaliMonth.getName(widget.language);
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'वि.सं. पात्रो (BS Calendar)'
: 'BS Calendar (Bikram Sambat)'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
NepaliCalendarView(
selectedDate: _date,
initialDate: _date,
language: widget.language,
onDateSelected: (d) => setState(() => _date = d),
),
const SizedBox(height: 16),
Card(
child: ListTile(
leading: const Icon(Icons.info_outline, color: Colors.blue),
title: Text(
widget.language.isNepali
? 'यथार्थ महिनाको दिन संख्या'
: 'Actual Days in This Month',
style: const TextStyle(fontWeight: FontWeight.bold),
),
subtitle: Text(
widget.language.isNepali
? '${_date.year} सालको $monthName महिनामा ${NepaliDigits.toNepali(daysCount)} दिनहरू छन्।'
: '$monthName ${_date.year} has $daysCount days in Bikram Sambat.',
),
),
),
],
),
);
}
}
// ============================================================================
// 9. AD CALENDAR SCREEN
// ============================================================================
class AdCalendarScreen extends StatefulWidget {
final Language language;
const AdCalendarScreen({super.key, required this.language});
@override
State<AdCalendarScreen> createState() => _AdCalendarScreenState();
}
class _AdCalendarScreenState extends State<AdCalendarScreen> {
DateTime _adDate = DateTime.now();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'ई.सं. क्यालेन्डर (AD Calendar)'
: 'AD Calendar (Gregorian)'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
ADCalendarView(
selectedDate: _adDate,
language: widget.language,
onDateSelected: (d) => setState(() => _adDate = d),
),
const SizedBox(height: 16),
Card(
child: ListTile(
title: Text(
widget.language.isNepali ? 'छानिएको मिति' : 'Selected Date',
style: const TextStyle(fontWeight: FontWeight.bold),
),
subtitle: Text(
'${_adDate.year}-${_adDate.month.toString().padLeft(2, '0')}-${_adDate.day.toString().padLeft(2, '0')}',
),
),
),
],
),
);
}
}
// ============================================================================
// 10. BS + AD DUAL CALENDAR SCREEN
// ============================================================================
class DualCalendarScreen extends StatefulWidget {
final Language language;
const DualCalendarScreen({super.key, required this.language});
@override
State<DualCalendarScreen> createState() => _DualCalendarScreenState();
}
class _DualCalendarScreenState extends State<DualCalendarScreen> {
late NepaliDate _date;
@override
void initState() {
super.initState();
_date = NepaliDate.now();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'संयुक्त पात्रो (BS + AD Dual)'
: 'BS + AD Dual Calendar'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
NepaliCalendarView(
selectedDate: _date,
showDualDate: true,
language: widget.language,
onDateSelected: (d) => setState(() => _date = d),
),
const SizedBox(height: 16),
DualDateDisplay(
nepaliDate: _date.toNepaliDateTime(),
language: widget.language,
),
],
),
);
}
}
// ============================================================================
// 11. DATE PICKER SCREEN
// ============================================================================
class DatePickerScreen extends StatefulWidget {
final Language language;
const DatePickerScreen({super.key, required this.language});
@override
State<DatePickerScreen> createState() => _DatePickerScreenState();
}
class _DatePickerScreenState extends State<DatePickerScreen> {
NepaliDate? _pickedDate;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'मिति चयनकर्ता (Date Picker)'
: 'Date Picker Dialog'),
),
body: Center(
child: Padding(
padding: const EdgeInsets.all(24),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
_pickedDate != null
? NepaliDateFormat('yyyy MMMM dd, EEEE', widget.language)
.format(_pickedDate!)
: (widget.language.isNepali
? 'कुनै मिति छानिएको छैन'
: 'No date selected yet'),
style:
const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
textAlign: TextAlign.center,
),
const SizedBox(height: 24),
ElevatedButton.icon(
icon: const Icon(Icons.date_range),
label: Text(widget.language.isNepali
? 'मिति छान्नुहोस् (Open Picker)'
: 'Open Nepali Date Picker'),
onPressed: () async {
final picked = await showNepaliDatePicker(
context: context,
initialDate: _pickedDate ?? NepaliDate.now(),
language: widget.language,
);
if (picked != null) {
setState(() => _pickedDate = picked);
}
},
),
],
),
),
),
);
}
}
// ============================================================================
// 12. DATE RANGE PICKER SCREEN
// ============================================================================
class DateRangePickerScreen extends StatefulWidget {
final Language language;
const DateRangePickerScreen({super.key, required this.language});
@override
State<DateRangePickerScreen> createState() => _DateRangePickerScreenState();
}
class _DateRangePickerScreenState extends State<DateRangePickerScreen> {
NepaliDateRange? _range;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'दायरा चयनकर्ता (Date Range Picker)'
: 'Date Range Picker'),
),
body: Center(
child: Padding(
padding: const EdgeInsets.all(24),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
if (_range != null) ...[
Text(
'${_range!.startDate.format("yyyy-MM-dd")} ➔ ${_range!.endDate.format("yyyy-MM-dd")}',
style: const TextStyle(
fontSize: 18, fontWeight: FontWeight.bold),
),
const SizedBox(height: 8),
Text(
widget.language.isNepali
? 'जम्मा ${_range!.inDays} दिन'
: 'Total ${_range!.inDays} days',
style: const TextStyle(color: Colors.grey),
),
] else
Text(
widget.language.isNepali
? 'कुनै दायरा छानिएको छैन'
: 'No date range selected',
style: const TextStyle(
fontSize: 16, fontWeight: FontWeight.bold),
),
const SizedBox(height: 24),
ElevatedButton.icon(
icon: const Icon(Icons.calendar_view_day),
label: Text(widget.language.isNepali
? 'दायरा छान्नुहोस्'
: 'Select Date Range'),
onPressed: () async {
final picked = await showNepaliDateRangePicker(
context: context,
initialDateRange: _range,
language: widget.language,
);
if (picked != null) {
setState(() => _range = picked);
}
},
),
],
),
),
),
);
}
}
// ============================================================================
// 13. MONTH PICKER SCREEN
// ============================================================================
class MonthPickerScreen extends StatefulWidget {
final Language language;
const MonthPickerScreen({super.key, required this.language});
@override
State<MonthPickerScreen> createState() => _MonthPickerScreenState();
}
class _MonthPickerScreenState extends State<MonthPickerScreen> {
int _selectedMonth = 6; // Ashwin
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'महिना चयनकर्ता (Month Picker)'
: 'Month Picker Widget'),
),
body: Padding(
padding: const EdgeInsets.all(16),
child: Column(
children: [
Text(
widget.language.isNepali
? 'छानिएको महिना: ${NepaliMonth.fromIndex(_selectedMonth).nameNepali}'
: 'Selected Month: ${NepaliMonth.fromIndex(_selectedMonth).nameEnglish}',
style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
),
const SizedBox(height: 20),
NepaliMonthPicker(
selectedMonth: _selectedMonth,
language: widget.language,
onMonthSelected: (m) => setState(() => _selectedMonth = m),
),
],
),
),
);
}
}
// ============================================================================
// 14. YEAR PICKER SCREEN
// ============================================================================
class YearPickerScreen extends StatefulWidget {
final Language language;
const YearPickerScreen({super.key, required this.language});
@override
State<YearPickerScreen> createState() => _YearPickerScreenState();
}
class _YearPickerScreenState extends State<YearPickerScreen> {
int _selectedYear = 2082;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'वर्ष चयनकर्ता (Year Picker)'
: 'Year Picker Widget'),
),
body: Column(
children: [
Padding(
padding: const EdgeInsets.all(16),
child: Text(
widget.language.isNepali
? 'छानिएको वर्ष: ${NepaliDigits.toNepali(_selectedYear)} वि.सं.'
: 'Selected Year: $_selectedYear BS',
style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
),
),
Expanded(
child: NepaliYearPicker(
selectedYear: _selectedYear,
language: widget.language,
onYearSelected: (y) => setState(() => _selectedYear = y),
),
),
],
),
);
}
}
// ============================================================================
// 15. EVENTS SCREEN
// ============================================================================
class EventsScreen extends StatefulWidget {
final Language language;
const EventsScreen({super.key, required this.language});
@override
State<EventsScreen> createState() => _EventsScreenState();
}
class _EventsScreenState extends State<EventsScreen> {
late NepaliDate _selectedDate;
late Map<NepaliDate, List<CalendarEvent>> _events;
@override
void initState() {
super.initState();
_selectedDate = NepaliDate(2082, 7, 4);
_events = {
NepaliDate(2082, 7, 4): [
CalendarEvent(
id: 'event_dashain',
date: NepaliDate(2082, 7, 4),
title: 'Dashain Festival (दशैं पर्व)',
type: CalendarEventType.personal,
colorValue: 0xFFF44336, // Red
),
CalendarEvent(
id: 'event_tika',
date: NepaliDate(2082, 7, 4),
title: 'Family Gathering & Tika',
type: CalendarEventType.personal,
colorValue: 0xFF2196F3, // Blue
),
],
NepaliDate(2082, 7, 10): [
CalendarEvent(
id: 'event_project_deadline',
date: NepaliDate(2082, 7, 10),
title: 'Project Milestone Deadline',
type: CalendarEventType.work,
colorValue: 0xFF9C27B0, // Purple
),
],
};
}
@override
Widget build(BuildContext context) {
final dayEvents = _events[_selectedDate] ?? [];
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'कार्यक्रम तथा इभेन्ट (Events)'
: 'Calendar Events'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
NepaliCalendarView(
selectedDate: _selectedDate,
initialDate: _selectedDate,
events: _events,
language: widget.language,
onDateSelected: (d) => setState(() => _selectedDate = d),
),
const SizedBox(height: 16),
Text(
widget.language.isNepali
? 'कार्यक्रम सूची (${dayEvents.length})'
: 'Events on this Day (${dayEvents.length})',
style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 16),
),
const SizedBox(height: 8),
if (dayEvents.isEmpty)
Card(
child: Padding(
padding: const EdgeInsets.all(16),
child: Text(
widget.language.isNepali
? 'यस दिन कुनै कार्यक्रम छैन।'
: 'No events scheduled for this date.',
),
),
)
else
...dayEvents.map((e) {
final color =
e.colorValue != null ? Color(e.colorValue!) : Colors.orange;
return Card(
child: ListTile(
leading: CircleAvatar(
backgroundColor: color,
radius: 6,
),
title: Text(e.title,
style: const TextStyle(fontWeight: FontWeight.bold)),
subtitle: Text(e.type.name),
),
);
}),
],
),
);
}
}
// ============================================================================
// 16. DISABLED DATES SCREEN
// ============================================================================
class DisabledDatesScreen extends StatefulWidget {
final Language language;
const DisabledDatesScreen({super.key, required this.language});
@override
State<DisabledDatesScreen> createState() => _DisabledDatesScreenState();
}
class _DisabledDatesScreenState extends State<DisabledDatesScreen> {
NepaliDate? _selected;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'निष्क्रिय मितिहरू (Disabled Dates)'
: 'Disabled Dates Predicate'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
Card(
color: Colors.amber.withValues(alpha: 0.12),
elevation: 0,
child: Padding(
padding: const EdgeInsets.all(12),
child: Text(
widget.language.isNepali
? 'यस क्यालेन्डरमा शनिबार (शनि) र २५ गते पछिका दिनहरू चयन गर्न मिल्दैन।'
: 'Saturdays and days after day 25 are disabled using selectableDayPredicate.',
style: const TextStyle(fontWeight: FontWeight.w600),
),
),
),
const SizedBox(height: 12),
NepaliCalendarView(
selectedDate: _selected,
language: widget.language,
selectableDayPredicate: (date) {
// Disable Saturday and days after 25
if (date.nepaliWeekday == NepaliWeekday.saturday) return false;
if (date.day > 25) return false;
return true;
},
onDateSelected: (d) => setState(() => _selected = d),
),
const SizedBox(height: 16),
if (_selected != null)
Card(
child: ListTile(
title: Text(
widget.language.isNepali
? 'छानिएको स्वीकृत मिति'
: 'Selected Allowed Date',
style: const TextStyle(fontWeight: FontWeight.bold),
),
subtitle: Text(
NepaliDateFormat('yyyy-MM-dd, EEEE', widget.language)
.format(_selected!),
),
),
),
],
),
);
}
}
// ============================================================================
// 17. CUSTOM DAY BUILDER SCREEN
// ============================================================================
class CustomDayBuilderScreen extends StatefulWidget {
final Language language;
const CustomDayBuilderScreen({super.key, required this.language});
@override
State<CustomDayBuilderScreen> createState() => _CustomDayBuilderScreenState();
}
class _CustomDayBuilderScreenState extends State<CustomDayBuilderScreen> {
NepaliDate _selected = NepaliDate.now();
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.language.isNepali
? 'कस्टम डे बिल्डर (Custom Day Builder)'
: 'Custom Day Builder'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
NepaliCalendarView(
selectedDate: _selected,
language: widget.language,
onDateSelected: (d) => setState(() => _selected = d),
dayBuilder: (context, date,
{required isDisabled,
required isHoliday,
required isSelected,
required isToday,
required hasEvents,
events = const []}) {
// Custom rendering: gradient for selected, round badge for today
if (isSelected) {
return Container(
margin: const EdgeInsets.all(4),
decoration: BoxDecoration(
gradient: const LinearGradient(
colors: [Colors.purple, Colors.deepOrange],
),
borderRadius: BorderRadius.circular(10),
),
alignment: Alignment.center,
child: Text(
widget.language.isNepali
? NepaliDigits.toNepali(date.day)
: '${date.day}',
style: const TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
);
}
if (isToday) {
return Container(
margin: const EdgeInsets.all(4),
decoration: BoxDecoration(
border: Border.all(color: Colors.purple, width: 2),
borderRadius: BorderRadius.circular(10),
),
alignment: Alignment.center,
child: Text(
widget.language.isNepali
? NepaliDigits.toNepali(date.day)
: '${date.day}',
style: const TextStyle(fontWeight: FontWeight.bold),
),
);
}
return null; // fallback to default
},
),
],
),
);
}
}
// ============================================================================
// 18. RELATIVE TIME SCREEN
// ============================================================================
class RelativeTimeScreen extends StatelessWidget {
final Language language;
const RelativeTimeScreen({super.key, required this.language});
@override
Widget build(BuildContext context) {
final now = NepaliDateTime.now();
final samples = [
now.subtract(const Duration(seconds: 40)),
now.subtract(const Duration(minutes: 15)),
now.subtract(const Duration(hours: 4)),
now.subtractDays(1),
now.subtractDays(3),
now.subtractDays(45),
now.add(const Duration(hours: 2)),
now.addDays(1),
now.addDays(10),
];
return Scaffold(
appBar: AppBar(
title: Text(language.isNepali
? 'सापेक्ष समय (Relative Time)'
: 'Relative Time Moments'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
Card(
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
language.isNepali
? 'नेपाली मोमेन्ट (Nepali Moments)'
: 'Human Readable Relative Timestamps',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const Divider(),
...samples.map((dt) {
final np =
NepaliMoment.fromDate(dt, language: Language.nepali);
final en =
NepaliMoment.fromDate(dt, language: Language.english);
return Padding(
padding: const EdgeInsets.symmetric(vertical: 6),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(np,
style: const TextStyle(
fontWeight: FontWeight.bold, fontSize: 14)),
Text(en,
style: const TextStyle(
color: Colors.grey, fontSize: 13)),
],
),
);
}),
],
),
),
),
],
),
);
}
}
// ============================================================================
// 19. TEXT / UNICODE UTILITIES SCREEN
// ============================================================================
class TextUnicodeScreen extends StatefulWidget {
final Language language;
const TextUnicodeScreen({super.key, required this.language});
@override
State<TextUnicodeScreen> createState() => _TextUnicodeScreenState();
}
class _TextUnicodeScreenState extends State<TextUnicodeScreen> {
final TextEditingController _romanizedController = TextEditingController(
text: "namaste, tpaaii'laaii kasto chha? swagatam!",
);
final TextEditingController _digitController =
TextEditingController(text: 'मंसिर २०८२ मा ५५ जना मानिस आए।');
bool _liveConversion = true;
@override
void dispose() {
_romanizedController.dispose();
_digitController.dispose();
super.dispose();
}
void _loadExample(String example) {
setState(() {
_romanizedController.text = example;
});
}
@override
Widget build(BuildContext context) {
final theme = Theme.of(context);
final isNepali = widget.language.isNepali;
// Romanized transliteration
final romanizedInput = _romanizedController.text;
final convertedOutput = NepaliUnicode.convert(
romanizedInput,
live: _liveConversion,
);
// Digit utilities
final digitText = _digitController.text;
final hasNepaliDigits = NepaliDigits.containsNepaliDigits(digitText);
final toEnglish = NepaliDigits.toEnglish(digitText);
final toNepali = NepaliDigits.toNepali(toEnglish);
return Scaffold(
appBar: AppBar(
title: Text(isNepali
? 'युनिकोड तथा पाठ (Text & Unicode)'
: 'Text & Unicode Utilities'),
),
body: ListView(
padding: const EdgeInsets.all(16),
children: [
// 1. Romanized to Nepali Unicode Converter Card
Card(
elevation: 2,
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Icon(Icons.translate, color: theme.colorScheme.primary),
const SizedBox(width: 8),
Text(
isNepali
? 'रोमनाइज्ड → नेपाली युनिकोड'
: 'Romanized → Nepali Unicode',
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
],
),
const SizedBox(height: 8),
Text(
isNepali
? 'अंग्रेजी अक्षरमा टाइप गरेर प्रत्यक्ष नेपाली युनिकोड प्राप्त गर्नुहोस्।'
: 'Phonetic English literal to clean Devanagari Unicode converter.',
style: TextStyle(
fontSize: 12,
color: theme.colorScheme.onSurfaceVariant,
),
),
const SizedBox(height: 12),
// Preset example buttons
SingleChildScrollView(
scrollDirection: Axis.horizontal,
child: Row(
children: [
ActionChip(
avatar: const Icon(Icons.handshake, size: 16),
label: Text(isNepali ? 'अभिवादन' : 'Greetings'),
onPressed: () => _loadExample(
"namaste, tpaaii'laaii kasto chha? swagatam!",
),
),
const SizedBox(width: 8),
ActionChip(
avatar: const Icon(Icons.person, size: 16),
label: Text(isNepali ? 'परिचय' : 'Introduction'),
onPressed: () => _loadExample(
"mero naam Bikash ho, ma nepaalmaa baschhu.",
),
),
const SizedBox(width: 8),
ActionChip(
avatar:
const Icon(Icons.chat_bubble_outline, size: 16),
label: Text(
isNepali ? 'दैनिक कुराकानी' : 'Conversation'),
onPressed: () => _loadExample(
"aaja ko mausam dherai raamro chha.",
),
),
],
),
),
const SizedBox(height: 12),
// Input text field
TextField(
controller: _romanizedController,
maxLines: 3,
onChanged: (_) => setState(() {}),
decoration: InputDecoration(
labelText: isNepali
? 'रोमनाइज्ड नेपाली (Romanized input)'
: 'Romanized Nepali Input',
hintText: "namaste, tapaaii'laaii kasto chha?...",
border: const OutlineInputBorder(),
suffixIcon: _romanizedController.text.isNotEmpty
? IconButton(
icon: const Icon(Icons.clear),
onPressed: () {
_romanizedController.clear();
setState(() {});
},
)
: null,
),
),
const SizedBox(height: 8),
// Live conversion toggle
SwitchListTile(
contentPadding: EdgeInsets.zero,
title: Text(
isNepali ? 'प्रत्यक्ष रूपान्तरण' : 'Live conversion',
style: const TextStyle(fontWeight: FontWeight.w600),
),
subtitle: Text(
isNepali
? 'टाइप गर्दागर्दै तत्काल युनिकोड बनाउने'
: 'Incremental type-as-you-write conversion',
style: const TextStyle(fontSize: 12),
),
value: _liveConversion,
onChanged: (val) => setState(() => _liveConversion = val),
),
const Divider(),
const SizedBox(height: 4),
// Converted Output Header with Copy Button
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
isNepali
? 'नेपाली युनिकोड नतिजा'
: 'Nepali Unicode Result',
style: const TextStyle(
fontWeight: FontWeight.bold,
fontSize: 14,
),
),
TextButton.icon(
icon: const Icon(Icons.copy, size: 16),
label: Text(isNepali ? 'प्रतिलिपि' : 'Copy'),
onPressed: convertedOutput.isEmpty
? null
: () {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(
isNepali
? 'क्लिपबोर्डमा प्रतिलिपि गरियो!'
: 'Copied to clipboard!',
),
duration: const Duration(seconds: 1),
),
);
},
),
],
),
const SizedBox(height: 4),
// Converted Box
Container(
width: double.infinity,
padding: const EdgeInsets.all(12),
decoration: BoxDecoration(
color: theme.colorScheme.surfaceContainerHighest,
borderRadius: BorderRadius.circular(8),
border: Border.all(
color: theme.colorScheme.outlineVariant,
),
),
child: SelectableText(
convertedOutput.isEmpty
? (isNepali
? '(कुनै इनपुट छैन)'
: '(No input provided)')
: convertedOutput,
style: TextStyle(
fontSize: 15,
color: convertedOutput.isEmpty
? theme.colorScheme.outline
: theme.colorScheme.onSurface,
fontWeight: FontWeight.w500,
),
),
),
],
),
),
),
const SizedBox(height: 16),
// 2. Nepali Digits & Detection Card
Card(
elevation: 2,
child: Padding(
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Icon(Icons.pin, color: theme.colorScheme.primary),
const SizedBox(width: 8),
Text(
isNepali
? 'अंक रूपान्तरण तथा पहिचान'
: 'Digits & Identification',
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
),
),
],
),
const SizedBox(height: 8),
Text(
isNepali ? 'पाठ प्रविष्टि (Input String)' : 'Input String',
style: const TextStyle(fontWeight: FontWeight.bold),
),
const SizedBox(height: 8),
TextField(
controller: _digitController,
onChanged: (_) => setState(() {}),
decoration: const InputDecoration(
border: OutlineInputBorder(),
),
),
const SizedBox(height: 16),
_infoRow(
isNepali
? 'नेपाली अंक समावेश छ?'
: 'Contains Devanagari Digits?',
hasNepaliDigits ? 'Yes (छ)' : 'No (छैन)',
),
_infoRow(
isNepali
? 'अंग्रेजी अंकमा रूपान्तरण'
: 'Converted to ASCII',
toEnglish,
),
_infoRow(
isNepali
? 'देवनागरी अंकमा रूपान्तरण'
: 'Converted to Devanagari',
toNepali,
),
],
),
),
),
],
),
);
}
}
// ============================================================================
// SHARED HELPER WIDGETS
// ============================================================================
Widget _infoRow(String label, String value) {
return Padding(
padding: const EdgeInsets.symmetric(vertical: 4),
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Expanded(
flex: 4,
child: Text(
label,
style: const TextStyle(
fontWeight: FontWeight.w600,
fontSize: 13,
),
),
),
Expanded(
flex: 6,
child: Text(
value,
style: const TextStyle(fontSize: 13),
),
),
],
),
);
}Metadata
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Comprehensive BS/AD calendar and Nepali localization toolkit for Dart and Flutter.
Homepage
Repository (GitHub)
View/report issues
Topics
#calendar #nepali #bikram-sambat #date-picker #localization
License
MIT (license)