android-stuff/gps-speedo
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Implement complete GPS speedometer functionality

Browse Source 
Features implemented:
- Real-time GPS speed tracking with permission handling
- Customizable speed units (km/h, mph) with persistent settings
- Digital and analog speedometer display styles
- Dark/light theme support with system integration
- Optional metrics: coordinates, distance, trip time, GPS accuracy
- Trip reset functionality and error handling
- Modular architecture with Provider state management

Technical details:
- Added dependencies: geolocator, permission_handler, provider, shared_preferences
- Configured Android location permissions (FINE_LOCATION, COARSE_LOCATION)
- Portrait orientation lock for mobile-first experience
- Extensible settings system for future customization options
- Clean separation of concerns: providers, screens, widgets

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Mikkeli Matlock
2025-08-20 23:30:14 +09:00
parent e0f643d846
commit f5239d4a2a
16 changed files with 1435 additions and 126 deletions
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lib/screens/settings_screen.dart
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import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../providers/settings_provider.dart';
class SettingsScreen extends StatelessWidget {
const SettingsScreen({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Settings'),
),
body: Consumer<SettingsProvider>(
builder: (context, settings, child) {
return ListView(
children: [
_buildSectionHeader(context, 'Display'),
SwitchListTile(
title: const Text('Dark Mode'),
subtitle: const Text('Switch between light and dark themes'),
value: settings.isDarkMode,
onChanged: settings.setDarkMode,
),
ListTile(
title: const Text('Speed Unit'),
subtitle: Text('Current: ${settings.speedUnitString}'),
trailing: const Icon(Icons.chevron_right),
onTap: () => _showSpeedUnitDialog(context, settings),
),
ListTile(
title: const Text('Speedometer Style'),
subtitle: Text(settings.speedometerStyle == SpeedometerStyle.digital
? 'Digital Display'
: 'Analog Gauge'),
trailing: const Icon(Icons.chevron_right),
onTap: () => _showSpeedometerStyleDialog(context, settings),
),
const Divider(),
_buildSectionHeader(context, 'Information Display'),
SwitchListTile(
title: const Text('Show Coordinates'),
subtitle: const Text('Display current latitude and longitude'),
value: settings.showCoordinates,
onChanged: settings.setShowCoordinates,
),
SwitchListTile(
title: const Text('Show Distance'),
subtitle: const Text('Display total trip distance'),
value: settings.showDistance,
onChanged: settings.setShowDistance,
),
SwitchListTile(
title: const Text('Show Trip Time'),
subtitle: const Text('Display elapsed trip time'),
value: settings.showTripTime,
onChanged: settings.setShowTripTime,
),
SwitchListTile(
title: const Text('Show GPS Accuracy'),
subtitle: const Text('Display current GPS accuracy'),
value: settings.showAccuracy,
onChanged: settings.setShowAccuracy,
),
const Divider(),
_buildSectionHeader(context, 'About'),
ListTile(
title: const Text('GPS Speedometer'),
subtitle: const Text('Version 1.0.0\nCreated with Claude Code'),
leading: const Icon(Icons.info_outline),
),
],
);
},
),
);
}
Widget _buildSectionHeader(BuildContext context, String title) {
return Padding(
padding: const EdgeInsets.fromLTRB(16, 16, 16, 8),
child: Text(
title,
style: Theme.of(context).textTheme.titleMedium?.copyWith(
color: Theme.of(context).colorScheme.primary,
fontWeight: FontWeight.w600,
),
),
);
}
void _showSpeedUnitDialog(BuildContext context, SettingsProvider settings) {
showDialog(
context: context,
builder: (context) => AlertDialog(
title: const Text('Speed Unit'),
content: Column(
mainAxisSize: MainAxisSize.min,
children: [
RadioListTile<SpeedUnit>(
title: const Text('Kilometers per hour (km/h)'),
value: SpeedUnit.kmh,
groupValue: settings.speedUnit,
onChanged: (value) {
if (value != null) {
settings.setSpeedUnit(value);
Navigator.pop(context);
}
},
),
RadioListTile<SpeedUnit>(
title: const Text('Miles per hour (mph)'),
value: SpeedUnit.mph,
groupValue: settings.speedUnit,
onChanged: (value) {
if (value != null) {
settings.setSpeedUnit(value);
Navigator.pop(context);
}
},
),
],
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Cancel'),
),
],
),
);
}
void _showSpeedometerStyleDialog(BuildContext context, SettingsProvider settings) {
showDialog(
context: context,
builder: (context) => AlertDialog(
title: const Text('Speedometer Style'),
content: Column(
mainAxisSize: MainAxisSize.min,
children: [
RadioListTile<SpeedometerStyle>(
title: const Text('Digital Display'),
subtitle: const Text('Clean numeric display'),
value: SpeedometerStyle.digital,
groupValue: settings.speedometerStyle,
onChanged: (value) {
if (value != null) {
settings.setSpeedometerStyle(value);
Navigator.pop(context);
}
},
),
RadioListTile<SpeedometerStyle>(
title: const Text('Analog Gauge'),
subtitle: const Text('Classic circular speedometer'),
value: SpeedometerStyle.analog,
groupValue: settings.speedometerStyle,
onChanged: (value) {
if (value != null) {
settings.setSpeedometerStyle(value);
Navigator.pop(context);
}
},
),
],
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Cancel'),
),
],
),
);
}
}