Files
jamshalat-diary/lib/features/qibla/presentation/qibla_screen.dart

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Dart

import 'dart:io' show Platform;
import 'dart:math' as math;
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_qiblah/flutter_qiblah.dart';
import 'package:lucide_icons/lucide_icons.dart';
import '../../../app/theme/app_colors.dart';
class QiblaScreen extends ConsumerStatefulWidget {
const QiblaScreen({super.key});
@override
ConsumerState<QiblaScreen> createState() => _QiblaScreenState();
}
class _QiblaScreenState extends ConsumerState<QiblaScreen> {
// Fallback simulated data for environments without compass hardware (like macOS emulator)
double _qiblaAngle = 295.0; // Default Jakarta to Mecca
String _direction = 'NW';
bool _hasHardwareSupport = false;
late final Future<bool?> _deviceSupport = _checkDeviceSupport();
Future<bool?> _checkDeviceSupport() async {
if (Platform.isAndroid || Platform.isIOS) {
try {
return await FlutterQiblah.androidDeviceSensorSupport();
} catch (e) {
return false;
}
}
return false;
}
@override
void initState() {
super.initState();
// Pre-calculate static fallback
_calculateStaticQibla();
}
void _calculateStaticQibla() {
// Default to Jakarta coordinates
const lat = -6.2088;
const lng = 106.8456;
// Mecca coordinates
const meccaLat = 21.4225;
const meccaLng = 39.8262;
// Calculate qibla direction
final dLng = (meccaLng - lng) * math.pi / 180;
final lat1 = lat * math.pi / 180;
final lat2 = meccaLat * math.pi / 180;
final y = math.sin(dLng) * math.cos(lat2);
final x = math.cos(lat1) * math.sin(lat2) -
math.sin(lat1) * math.cos(lat2) * math.cos(dLng);
var bearing = math.atan2(y, x) * 180 / math.pi;
bearing = (bearing + 360) % 360;
setState(() {
_qiblaAngle = bearing;
_updateDirectionText(bearing);
});
}
void _updateDirectionText(double angle) {
if (angle >= 337.5 || angle < 22.5) {
_direction = 'N';
} else if (angle < 67.5) {
_direction = 'NE';
} else if (angle < 112.5) {
_direction = 'E';
} else if (angle < 157.5) {
_direction = 'SE';
} else if (angle < 202.5) {
_direction = 'S';
} else if (angle < 247.5) {
_direction = 'SW';
} else if (angle < 292.5) {
_direction = 'W';
} else {
_direction = 'NW';
}
}
@override
Widget build(BuildContext context) {
final isDark = Theme.of(context).brightness == Brightness.dark;
return FutureBuilder(
future: _deviceSupport,
builder: (_, AsyncSnapshot<bool?> snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Scaffold(body: Center(child: CircularProgressIndicator()));
}
// If device has a compass sensor (true on physical phones)
if (snapshot.data == true) {
return _buildLiveQibla(context, isDark);
}
// If device lacks compass (macOS/emulators)
return _buildSimulatedQibla(context, isDark);
},
);
}
Widget _buildLiveQibla(BuildContext context, bool isDark) {
return StreamBuilder(
stream: FlutterQiblah.qiblahStream,
builder: (_, AsyncSnapshot<QiblahDirection> snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Scaffold(body: Center(child: CircularProgressIndicator()));
}
final qiblahDirection = snapshot.data;
if (qiblahDirection == null) {
return Scaffold(body: Center(child: Text('Menunggu sensor arah...', style: TextStyle(color: isDark ? Colors.white : Colors.black))));
}
_updateDirectionText(qiblahDirection.qiblah);
return _buildQiblaLayout(
context: context,
isDark: isDark,
angleRad: qiblahDirection.qiblah * (math.pi / 180),
displayAngle: qiblahDirection.qiblah,
isLive: true,
);
},
);
}
Widget _buildSimulatedQibla(BuildContext context, bool isDark) {
return _buildQiblaLayout(
context: context,
isDark: isDark,
angleRad: _qiblaAngle * (math.pi / 180),
displayAngle: _qiblaAngle,
isLive: false,
);
}
Widget _buildQiblaLayout({
required BuildContext context,
required bool isDark,
required double angleRad,
required double displayAngle,
required bool isLive,
}) {
return Scaffold(
appBar: AppBar(
title: const Text('Qibla Finder'),
leading: IconButton(
icon: Container(
padding: const EdgeInsets.all(6),
decoration: BoxDecoration(
shape: BoxShape.circle,
color: isDark
? AppColors.surfaceDark
: AppColors.surfaceLight,
border: Border.all(color: AppColors.cream),
),
child: const Icon(LucideIcons.arrowLeft, size: 18),
),
onPressed: () => Navigator.pop(context),
),
actions: [
IconButton(
icon: Container(
padding: const EdgeInsets.all(6),
decoration: BoxDecoration(
shape: BoxShape.circle,
color: isDark ? AppColors.surfaceDark : AppColors.surfaceLight,
border: Border.all(color: AppColors.cream),
),
child: Icon(isLive ? LucideIcons.locate : LucideIcons.locateOff, size: 18),
),
onPressed: () {
if (isLive) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Menggunakan sensor perangkat aktual')),
);
} else {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Mode Simulasi: Hardware kompas tidak terdeteksi')),
);
}
},
),
],
),
body: Container(
width: double.infinity,
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
colors: isDark
? [AppColors.backgroundDark, AppColors.surfaceDark]
: [
AppColors.backgroundLight,
AppColors.primary.withValues(alpha: 0.05),
],
),
),
child: Column(
children: [
const SizedBox(height: 32),
// Location label
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(LucideIcons.mapPin,
size: 16, color: AppColors.primary),
const SizedBox(width: 4),
Text(
'Mecca, Saudi Arabia',
style: TextStyle(
fontSize: 14,
color: isDark
? AppColors.textSecondaryDark
: AppColors.textSecondaryLight,
),
),
],
),
const SizedBox(height: 8),
// Degree + direction
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
'${displayAngle.round()}°',
style: const TextStyle(
fontSize: 48,
fontWeight: FontWeight.w800,
),
),
const SizedBox(width: 12),
Text(
_direction,
style: TextStyle(
fontSize: 48,
fontWeight: FontWeight.w800,
color: AppColors.primary,
),
),
],
),
const SizedBox(height: 32),
// Compass
Expanded(
child: Center(
child: SizedBox(
width: 300,
height: 300,
child: CustomPaint(
painter: _CompassPainter(
qiblaAngle: angleRad,
isDark: isDark,
),
),
),
),
),
const SizedBox(height: 16),
// Calibration status
Container(
padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 10),
decoration: BoxDecoration(
color: isLive
? AppColors.primary.withValues(alpha: 0.1)
: Colors.orange.withValues(alpha: 0.1),
borderRadius: BorderRadius.circular(50),
),
child: Text(
isLive ? 'SENSOR AKTIF' : 'MODE SIMULASI (TIDAK ADA SENSOR)',
style: TextStyle(
fontSize: 11,
fontWeight: FontWeight.w700,
letterSpacing: 1.5,
color: isLive ? AppColors.primary : Colors.orange,
),
),
),
const SizedBox(height: 48),
],
),
),
);
}
}
class _CompassPainter extends CustomPainter {
final double qiblaAngle;
final bool isDark;
_CompassPainter({required this.qiblaAngle, required this.isDark});
@override
void paint(Canvas canvas, Size size) {
final center = Offset(size.width / 2, size.height / 2);
final radius = size.width / 2 - 8;
// Outer circle
final outerPaint = Paint()
..color = AppColors.primary.withValues(alpha: 0.15)
..style = PaintingStyle.stroke
..strokeWidth = 2;
canvas.drawCircle(center, radius, outerPaint);
// Inner dashed circle
final innerPaint = Paint()
..color = AppColors.primary.withValues(alpha: 0.08)
..style = PaintingStyle.stroke
..strokeWidth = 1;
canvas.drawCircle(center, radius * 0.7, innerPaint);
// Cross lines
final crossPaint = Paint()
..color = AppColors.primary.withValues(alpha: 0.1)
..strokeWidth = 1;
canvas.drawLine(
Offset(center.dx, center.dy - radius),
Offset(center.dx, center.dy + radius),
crossPaint);
canvas.drawLine(
Offset(center.dx - radius, center.dy),
Offset(center.dx + radius, center.dy),
crossPaint);
// Diagonals
final diagOffset = radius * 0.707;
canvas.drawLine(
Offset(center.dx - diagOffset, center.dy - diagOffset),
Offset(center.dx + diagOffset, center.dy + diagOffset),
crossPaint);
canvas.drawLine(
Offset(center.dx + diagOffset, center.dy - diagOffset),
Offset(center.dx - diagOffset, center.dy + diagOffset),
crossPaint);
// Center dot
final centerDotPaint = Paint()
..color = AppColors.primary.withValues(alpha: 0.3)
..style = PaintingStyle.stroke
..strokeWidth = 2;
canvas.drawCircle(center, 6, centerDotPaint);
// Qibla direction line
final qiblaEndX = center.dx + radius * 0.85 * math.cos(qiblaAngle - math.pi / 2);
final qiblaEndY = center.dy + radius * 0.85 * math.sin(qiblaAngle - math.pi / 2);
// Glow effect
final glowPaint = Paint()
..color = AppColors.primary.withValues(alpha: 0.3)
..strokeWidth = 6
..strokeCap = StrokeCap.round;
canvas.drawLine(center, Offset(qiblaEndX, qiblaEndY), glowPaint);
// Main line
final linePaint = Paint()
..color = AppColors.primary
..strokeWidth = 3
..strokeCap = StrokeCap.round;
canvas.drawLine(center, Offset(qiblaEndX, qiblaEndY), linePaint);
// Qibla icon circle at end
final iconPaint = Paint()..color = AppColors.primary;
canvas.drawCircle(Offset(qiblaEndX, qiblaEndY), 16, iconPaint);
// Kaaba icon (simplified)
final kaabaPaint = Paint()
..color = Colors.white
..style = PaintingStyle.fill;
canvas.drawRect(
Rect.fromCenter(
center: Offset(qiblaEndX, qiblaEndY),
width: 12,
height: 12,
),
kaabaPaint,
);
}
@override
bool shouldRepaint(covariant _CompassPainter oldDelegate) =>
qiblaAngle != oldDelegate.qiblaAngle;
}