513 lines
18 KiB
Dart
513 lines
18 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_map/flutter_map.dart';
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import 'package:latlong2/latlong.dart';
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import 'package:geocoding/geocoding.dart';
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import 'dart:math' as math;
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import 'package:url_launcher/url_launcher.dart';
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import 'package:http/http.dart' as http;
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import 'dart:convert';
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class LocationResult {
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final String address;
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final double latitude;
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final double longitude;
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LocationResult({
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required this.address,
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required this.latitude,
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required this.longitude,
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});
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}
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class LocationPickerDialog extends StatefulWidget {
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final String? initialAddress;
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final double? initialLatitude;
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final double? initialLongitude;
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final bool fullscreen;
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const LocationPickerDialog({
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super.key,
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this.initialAddress,
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this.initialLatitude,
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this.initialLongitude,
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this.fullscreen = false,
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});
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@override
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State<LocationPickerDialog> createState() => _LocationPickerDialogState();
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}
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class _LocationPickerDialogState extends State<LocationPickerDialog> {
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late LatLng _selectedLatLng;
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String _selectedAddress = '';
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bool _isLoading = false;
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double _rotation = 0.0;
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final TextEditingController _searchController = TextEditingController();
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final MapController _mapController = MapController();
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@override
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void initState() {
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super.initState();
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_selectedLatLng = LatLng(
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widget.initialLatitude ?? -7.797068,
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widget.initialLongitude ?? 110.370529,
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);
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_selectedAddress = widget.initialAddress ?? '';
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_getAddressFromLatLng(_selectedLatLng.latitude, _selectedLatLng.longitude);
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}
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Future<void> _getAddressFromLatLng(double lat, double lng) async {
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setState(() => _isLoading = true);
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try {
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List<Placemark> placemarks = await placemarkFromCoordinates(lat, lng);
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if (placemarks.isNotEmpty) {
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Placemark place = placemarks[0];
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String address =
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'${place.street}, ${place.subLocality}, ${place.locality}, ${place.subAdministrativeArea}, ${place.administrativeArea} ${place.postalCode}, ${place.country}';
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address = address.replaceAll(RegExp(r', ,'), ',');
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address = address.replaceAll(RegExp(r',,'), ',');
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address = address.replaceAll(RegExp(r'^, '), '');
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setState(() {
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_selectedAddress = address;
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});
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}
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} catch (e) {
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setState(() {
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_selectedAddress = '';
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});
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}
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setState(() => _isLoading = false);
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}
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Future<void> _findLocation(String query) async {
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if (query.isEmpty) return;
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// Cek apakah input berupa koordinat lat,lng
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final coordReg = RegExp(r'^\s*(-?\d+(?:\.\d+)?),\s*(-?\d+(?:\.\d+)?)\s*\$');
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final match = coordReg.firstMatch(query);
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if (match != null) {
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final lat = double.tryParse(match.group(1)!);
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final lng = double.tryParse(match.group(2)!);
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if (lat != null && lng != null) {
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final latLng = LatLng(lat, lng);
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setState(() {
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_selectedLatLng = latLng;
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});
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_mapController.move(latLng, 15.0);
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await _getAddressFromLatLng(lat, lng);
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return;
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}
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}
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setState(() => _isLoading = true);
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try {
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List<Location> locations = await locationFromAddress(query);
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if (locations.isNotEmpty) {
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final loc = locations.first;
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final latLng = LatLng(loc.latitude, loc.longitude);
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setState(() {
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_selectedLatLng = latLng;
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});
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_mapController.move(latLng, 15.0);
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await _getAddressFromLatLng(latLng.latitude, latLng.longitude);
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} else {
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ScaffoldMessenger.of(
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context,
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).showSnackBar(SnackBar(content: Text('Lokasi tidak ditemukan!')));
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}
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} catch (e) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('Terjadi error saat mencari lokasi')),
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);
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}
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setState(() => _isLoading = false);
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}
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void _resetNorth() {
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setState(() {
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_rotation = 0.0;
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});
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_mapController.rotate(0.0);
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}
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Future<String?> _getMapillaryThumbnail(double lat, double lng) async {
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const accessToken =
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'MLY|24193737726928907|ec8688dd90eee0a7bd6231d281010d5c';
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final url =
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'https://graph.mapillary.com/images?access_token=$accessToken&fields=id,thumb_256_url&closeto=$lng,$lat&limit=1';
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final response = await http.get(Uri.parse(url));
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if (response.statusCode == 200) {
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final data = json.decode(response.body);
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if (data['data'] != null && data['data'].isNotEmpty) {
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return data['data'][0]['thumb_256_url'] as String?;
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}
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}
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return null;
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}
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Future<String> _getMapillaryViewerUrl(double lat, double lng) async {
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const accessToken =
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'MLY|24193737726928907|ec8688dd90eee0a7bd6231d281010d5c';
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final url =
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'https://graph.mapillary.com/images?access_token=$accessToken&fields=id&closeto=$lng,$lat&limit=1';
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final response = await http.get(Uri.parse(url));
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if (response.statusCode == 200) {
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final data = json.decode(response.body);
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if (data['data'] != null && data['data'].isNotEmpty) {
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final id = data['data'][0]['id'];
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return 'https://www.mapillary.com/app/?pKey=$id&focus=photo';
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}
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}
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return 'https://www.mapillary.com/app/?lat=$lat&lng=$lng&z=17.5';
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}
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@override
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Widget build(BuildContext context) {
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final isFullscreen = widget.fullscreen;
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final dialogContent = Column(
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children: [
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// Header
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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decoration: BoxDecoration(
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color: Theme.of(context).primaryColor,
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borderRadius:
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isFullscreen
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? null
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: const BorderRadius.only(
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topLeft: Radius.circular(16),
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topRight: Radius.circular(16),
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),
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),
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child: Row(
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children: [
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const Expanded(
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child: Text(
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'Pilih Lokasi Lahan',
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style: TextStyle(
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color: Colors.white,
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fontSize: 18,
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fontWeight: FontWeight.bold,
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),
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),
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),
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if (!isFullscreen)
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IconButton(
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icon: const Icon(Icons.open_in_full, color: Colors.white),
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onPressed: () async {
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final result = await Navigator.of(context).push(
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MaterialPageRoute(
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builder:
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(ctx) => LocationPickerDialog(
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initialAddress: _selectedAddress,
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initialLatitude: _selectedLatLng.latitude,
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initialLongitude: _selectedLatLng.longitude,
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fullscreen: true,
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),
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),
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);
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if (result is LocationResult) {
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Navigator.of(context).pop(result);
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}
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},
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),
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IconButton(
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icon: Icon(
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isFullscreen ? Icons.close : Icons.close,
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color: Colors.white,
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),
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onPressed: () => Navigator.of(context).pop(),
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),
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],
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),
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),
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// Search Bar
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Padding(
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padding: const EdgeInsets.all(16),
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child: Row(
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children: [
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Expanded(
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child: TextField(
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controller: _searchController,
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decoration: InputDecoration(
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hintText: 'Cari lokasi…',
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8),
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),
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contentPadding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 12,
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),
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),
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onSubmitted: (value) => _findLocation(value),
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),
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),
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const SizedBox(width: 8),
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ElevatedButton(
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onPressed: () => _findLocation(_searchController.text),
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style: ElevatedButton.styleFrom(
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backgroundColor: Theme.of(context).primaryColor,
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foregroundColor: Colors.white,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8),
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),
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padding: const EdgeInsets.symmetric(
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vertical: 14,
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horizontal: 16,
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),
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),
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child: const Icon(Icons.search),
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),
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],
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),
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),
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// Map
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Expanded(
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child: Stack(
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children: [
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FlutterMap(
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mapController: _mapController,
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options: MapOptions(
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center: _selectedLatLng,
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zoom: 15.0,
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interactiveFlags:
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InteractiveFlag.all, // Aktifkan semua gesture
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onTap: (tapPosition, point) async {
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setState(() {
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_selectedLatLng = point;
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});
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await _getAddressFromLatLng(
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point.latitude,
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point.longitude,
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);
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},
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),
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children: [
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TileLayer(
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urlTemplate:
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'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
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userAgentPackageName: 'com.tanismart.tugas_akhir_supabase',
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),
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MarkerLayer(
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markers: [
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Marker(
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width: 40.0,
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height: 40.0,
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point: _selectedLatLng,
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child: Icon(
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Icons.location_on,
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color: Colors.red,
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size: 40,
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),
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),
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],
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),
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],
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),
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FutureBuilder<String?>(
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future: _getMapillaryThumbnail(
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_selectedLatLng.latitude,
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_selectedLatLng.longitude,
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),
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builder: (context, snapshot) {
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if (snapshot.connectionState == ConnectionState.waiting) {
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return Positioned(
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bottom: 16,
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left: 16,
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child: Container(
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width: 120,
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height: 70,
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color: Colors.grey[300],
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child: const Center(
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child: CircularProgressIndicator(strokeWidth: 2),
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),
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),
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);
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}
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if (snapshot.hasData && snapshot.data != null) {
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final thumbUrl = snapshot.data!;
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return Positioned(
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bottom: 16,
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left: 16,
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child: GestureDetector(
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onTap: () async {
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final url = await _getMapillaryViewerUrl(
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_selectedLatLng.latitude,
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_selectedLatLng.longitude,
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);
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if (await canLaunch(url)) {
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await launch(url);
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}
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},
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child: ClipRRect(
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borderRadius: BorderRadius.circular(8),
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child: Image.network(
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thumbUrl,
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width: 120,
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height: 70,
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fit: BoxFit.cover,
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errorBuilder:
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(context, error, stack) => Container(
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color: Colors.grey[300],
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width: 120,
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height: 70,
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child: Icon(Icons.image_not_supported),
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),
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),
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),
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),
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);
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}
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return SizedBox.shrink();
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},
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),
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// Koordinat & Kompas di kanan atas
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Positioned(
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top: 12,
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right: 12,
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child: Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 12,
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vertical: 6,
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),
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decoration: BoxDecoration(
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color: Colors.white.withOpacity(0.85),
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borderRadius: BorderRadius.circular(8),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.1),
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blurRadius: 4,
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),
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],
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),
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child: Row(
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children: [
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Text(
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'${_selectedLatLng.latitude.toStringAsFixed(6)}, ${_selectedLatLng.longitude.toStringAsFixed(6)}',
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style: const TextStyle(
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fontSize: 13,
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fontWeight: FontWeight.bold,
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),
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),
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const SizedBox(width: 8),
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// Kompas
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GestureDetector(
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onTap: _resetNorth,
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child: const Icon(
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Icons.explore,
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color: Colors.blue,
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size: 24,
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),
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),
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],
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),
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),
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),
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if (_isLoading)
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const Positioned(
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top: 0,
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left: 0,
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right: 0,
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child: LinearProgressIndicator(),
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),
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],
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),
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),
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// Selected Location
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Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: Colors.white,
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.1),
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blurRadius: 4,
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offset: const Offset(0, -2),
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),
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],
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text(
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'Lokasi Terpilih:',
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style: TextStyle(fontWeight: FontWeight.bold, fontSize: 16),
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),
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const SizedBox(height: 8),
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Text(
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_selectedAddress.isNotEmpty
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? _selectedAddress
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: 'Belum ada lokasi terpilih',
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style: TextStyle(color: Colors.grey[700], fontSize: 14),
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),
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const SizedBox(height: 8),
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Text(
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'Koordinat: ${_selectedLatLng.latitude.toStringAsFixed(6)}, ${_selectedLatLng.longitude.toStringAsFixed(6)}',
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style: TextStyle(color: Colors.grey[700], fontSize: 12),
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),
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const SizedBox(height: 16),
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Row(
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children: [
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Expanded(
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child: ElevatedButton(
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onPressed: () => Navigator.of(context).pop(),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.grey[200],
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foregroundColor: Colors.black,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8),
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),
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padding: const EdgeInsets.symmetric(vertical: 12),
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),
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child: const Text('Batal'),
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),
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),
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const SizedBox(width: 16),
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Expanded(
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child: ElevatedButton(
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onPressed: () {
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Navigator.of(context).pop(
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LocationResult(
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address: _selectedAddress,
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latitude: _selectedLatLng.latitude,
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longitude: _selectedLatLng.longitude,
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),
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);
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},
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style: ElevatedButton.styleFrom(
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backgroundColor: Theme.of(context).primaryColor,
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foregroundColor: Colors.white,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8),
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),
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padding: const EdgeInsets.symmetric(vertical: 12),
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),
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child: const Text('Pilih Lokasi'),
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),
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),
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],
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),
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],
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),
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),
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],
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);
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return isFullscreen
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? Scaffold(
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backgroundColor: Colors.white,
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body: SafeArea(child: dialogContent),
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)
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: Dialog(
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backgroundColor: Colors.transparent,
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insetPadding: const EdgeInsets.all(16),
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child: Container(
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width: double.infinity,
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height: MediaQuery.of(context).size.height * 0.8,
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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),
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child: dialogContent,
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),
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);
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}
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}
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