Implement Google Navigation Flutter integration for turn-by-turn delivery navigation
Adds complete Google Navigation support with: - LocationPermissionService for runtime location permissions - NavigationSessionService for session and route management - NavigationPage for full-screen turn-by-turn navigation UI - NavigationTermsAndConditionsDialog for service acceptance - Comprehensive i18n support (English/French) - Android minSdk=23 with Java NIO desugaring - iOS location permissions in Info.plist - Error handling with user-friendly dialogs - Location update and arrival notifications Includes detailed setup guide and implementation documentation with API key configuration instructions, integration examples, and testing checklist. Generated with Claude Code Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Jean-Philippe Brule
@@ -0,0 +1,82 @@
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import 'package:flutter/material.dart';
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import 'package:flutter_gen/gen_l10n/app_localizations.dart';
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class NavigationTermsAndConditionsDialog extends StatelessWidget {
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final VoidCallback onAccept;
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final VoidCallback? onDecline;
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const NavigationTermsAndConditionsDialog({
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Key? key,
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required this.onAccept,
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this.onDecline,
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}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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final l10n = AppLocalizations.of(context);
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final colorScheme = Theme.of(context).colorScheme;
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return AlertDialog(
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title: Text(
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l10n?.navigationTcTitle ?? 'Navigation Service',
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style: Theme.of(context).textTheme.headlineSmall?.copyWith(
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color: colorScheme.onSurface,
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),
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),
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content: SingleChildScrollView(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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l10n?.navigationTcDescription ??
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'This app uses Google Navigation to provide turn-by-turn navigation for deliveries.',
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style: Theme.of(context).textTheme.bodyMedium?.copyWith(
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color: colorScheme.onSurface,
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),
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),
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const SizedBox(height: 16),
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Text(
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l10n?.navigationTcAttribution ??
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'Attribution: Maps and navigation services provided by Google Maps.',
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style: Theme.of(context).textTheme.bodySmall?.copyWith(
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color: colorScheme.onSurfaceVariant,
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),
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),
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const SizedBox(height: 12),
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Text(
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l10n?.navigationTcTerms ??
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'By accepting, you agree to Google\'s Terms of Service and Privacy Policy for Navigation services.',
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style: Theme.of(context).textTheme.bodySmall?.copyWith(
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color: colorScheme.onSurfaceVariant,
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),
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),
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],
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),
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),
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actions: [
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if (onDecline != null)
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TextButton(
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onPressed: () {
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Navigator.of(context).pop();
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onDecline!();
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},
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child: Text(
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l10n?.decline ?? 'Decline',
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style: TextStyle(color: colorScheme.error),
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),
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),
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TextButton(
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onPressed: () {
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Navigator.of(context).pop();
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onAccept();
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},
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child: Text(
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l10n?.accept ?? 'Accept',
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style: TextStyle(color: colorScheme.primary),
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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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+19
-1
@@ -65,5 +65,23 @@
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"completed": {"type": "int"},
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"total": {"type": "int"}
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}
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}
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},
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"navigationTcTitle": "Navigation Service",
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"navigationTcDescription": "This app uses Google Navigation to provide turn-by-turn navigation for deliveries.",
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"navigationTcAttribution": "Attribution: Maps and navigation services provided by Google Maps.",
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"navigationTcTerms": "By accepting, you agree to Google's Terms of Service and Privacy Policy for Navigation services.",
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"accept": "Accept",
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"decline": "Decline",
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"locationPermissionRequired": "Location Permission",
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"locationPermissionMessage": "This app requires location permission to navigate to deliveries.",
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"locationPermissionDenied": "Location permission denied. Navigation cannot proceed.",
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"permissionPermanentlyDenied": "Permission Required",
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"openSettingsMessage": "Location permission is permanently denied. Please enable it in app settings.",
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"openSettings": "Open Settings",
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"cancel": "Cancel",
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"ok": "OK",
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"requestPermission": "Request Permission",
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"navigationArrived": "You have arrived at the destination",
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"navigatingTo": "Navigating to",
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"initializingNavigation": "Initializing navigation..."
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}
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+19
-1
@@ -65,5 +65,23 @@
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"completed": {"type": "int"},
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"total": {"type": "int"}
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}
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}
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},
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"navigationTcTitle": "Service de Navigation",
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"navigationTcDescription": "Cette application utilise Google Navigation pour fournir une navigation virage par virage pour les livraisons.",
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"navigationTcAttribution": "Attribution: Services de cartes et de navigation fournis par Google Maps.",
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"navigationTcTerms": "En acceptant, vous acceptez les conditions d'utilisation et la politique de confidentialit de Google pour les services de navigation.",
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"accept": "Accepter",
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"decline": "Refuser",
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"locationPermissionRequired": "Permission de localisation",
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"locationPermissionMessage": "Cette application ncessite la permission de localisation pour naviguer vers les livraisons.",
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"locationPermissionDenied": "Permission de localisation refuse. La navigation ne peut pas continuer.",
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"permissionPermanentlyDenied": "Permission requise",
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"openSettingsMessage": "La permission de localisation est dfinitivement refuse. Veuillez l'activer dans les paramtres de l'application.",
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"openSettings": "Ouvrir les paramtres",
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"cancel": "Annuler",
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"ok": "OK",
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"requestPermission": "Demander la permission",
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"navigationArrived": "Vous tes arriv la destination",
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"navigatingTo": "Navigation vers",
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"initializingNavigation": "Initialisation de la navigation..."
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}
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@@ -0,0 +1,311 @@
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:google_navigation_flutter/google_navigation_flutter.dart';
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import 'package:flutter_gen/gen_l10n/app_localizations.dart';
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import '../models/delivery.dart';
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import '../services/location_permission_service.dart';
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import '../components/navigation_tc_dialog.dart';
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class NavigationPage extends ConsumerStatefulWidget {
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final Delivery delivery;
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final double destinationLatitude;
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final double destinationLongitude;
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final VoidCallback? onNavigationComplete;
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final VoidCallback? onNavigationCancelled;
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const NavigationPage({
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super.key,
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required this.delivery,
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required this.destinationLatitude,
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required this.destinationLongitude,
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this.onNavigationComplete,
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this.onNavigationCancelled,
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});
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@override
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ConsumerState<NavigationPage> createState() => _NavigationPageState();
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}
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class _NavigationPageState extends ConsumerState<NavigationPage> {
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late GoogleMapsNavigationViewController _navigationViewController;
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late LocationPermissionService _permissionService;
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bool _isNavigationInitialized = false;
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bool _hasLocationPermission = false;
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@override
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void initState() {
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super.initState();
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_permissionService = LocationPermissionService();
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_initializeNavigation();
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}
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Future<void> _initializeNavigation() async {
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try {
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final hasPermission = await _permissionService.hasLocationPermission();
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if (!hasPermission) {
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if (mounted) {
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_showPermissionDialog();
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}
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return;
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}
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setState(() {
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_hasLocationPermission = true;
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});
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if (mounted) {
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_initializeNavigationSession();
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}
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} catch (e) {
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if (mounted) {
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_showErrorDialog('Initialization error: ${e.toString()}');
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}
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}
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}
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Future<void> _initializeNavigationSession() async {
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try {
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await GoogleMapsNavigationViewController.initializeNavigationSession();
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if (mounted) {
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setState(() {
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_isNavigationInitialized = true;
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});
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// Set destination after session is initialized
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await _setDestination();
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}
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} catch (e) {
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if (mounted) {
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_showErrorDialog('Failed to initialize navigation: ${e.toString()}');
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}
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}
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}
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Future<void> _setDestination() async {
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try {
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final destination = NavigationDisplayOptions(
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showDestinationMarkers: true,
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);
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final waypoint = Waypoint(
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title: widget.delivery.name,
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target: LatLng(
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latitude: widget.destinationLatitude,
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longitude: widget.destinationLongitude,
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),
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);
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await _navigationViewController.setDestinations(
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destinations: [waypoint],
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displayOptions: destination,
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);
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// Listen for location updates
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_navigationViewController.addOnLocationUpdatedListener((location) {
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debugPrint(
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'Location updated: ${location.latitude}, ${location.longitude}',
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);
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});
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// Listen for navigation events
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_navigationViewController.addOnNavigationUIEnabledListener((isEnabled) {
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debugPrint('Navigation UI enabled: $isEnabled');
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});
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// Listen for waypoint reached
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_navigationViewController.addOnArrivalListener((arrival) {
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_handleArrival(arrival);
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});
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} catch (e) {
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if (mounted) {
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_showErrorDialog('Failed to set destination: ${e.toString()}');
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}
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}
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}
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void _handleArrival(NavInfo navInfo) {
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(
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AppLocalizations.of(context)?.navigationArrived ??
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'You have arrived at the destination',
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),
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duration: const Duration(seconds: 3),
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),
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);
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// Call completion callback
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widget.onNavigationComplete?.call();
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}
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}
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void _showPermissionDialog() {
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final l10n = AppLocalizations.of(context);
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showDialog(
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context: context,
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barrierDismissible: false,
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builder: (context) => AlertDialog(
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title: Text(l10n?.locationPermissionRequired ?? 'Location Permission'),
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content: Text(
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l10n?.locationPermissionMessage ??
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'This app requires location permission to navigate to deliveries.',
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),
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actions: [
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TextButton(
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onPressed: () {
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Navigator.of(context).pop();
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widget.onNavigationCancelled?.call();
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},
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child: Text(l10n?.cancel ?? 'Cancel'),
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),
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TextButton(
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onPressed: () {
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Navigator.of(context).pop();
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_requestLocationPermission();
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},
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child: Text(l10n?.requestPermission ?? 'Request Permission'),
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),
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],
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),
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);
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}
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Future<void> _requestLocationPermission() async {
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final result = await _permissionService.requestLocationPermission();
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if (!mounted) return;
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result.when(
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granted: () {
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setState(() {
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_hasLocationPermission = true;
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});
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_initializeNavigationSession();
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},
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denied: () {
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_showErrorDialog(
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AppLocalizations.of(context)?.locationPermissionDenied ??
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'Location permission denied. Navigation cannot proceed.',
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);
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widget.onNavigationCancelled?.call();
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},
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permanentlyDenied: () {
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_showPermissionSettingsDialog();
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},
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error: (message) {
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_showErrorDialog(message);
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widget.onNavigationCancelled?.call();
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},
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);
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}
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void _showPermissionSettingsDialog() {
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final l10n = AppLocalizations.of(context);
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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title: Text(l10n?.permissionPermanentlyDenied ?? 'Permission Required'),
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content: Text(
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l10n?.openSettingsMessage ??
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'Location permission is permanently denied. Please enable it in app settings.',
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),
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actions: [
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TextButton(
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onPressed: () => Navigator.of(context).pop(),
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child: Text(l10n?.cancel ?? 'Cancel'),
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),
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TextButton(
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onPressed: () {
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_permissionService.openAppSettings();
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Navigator.of(context).pop();
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},
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child: Text(l10n?.openSettings ?? 'Open Settings'),
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),
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],
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),
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);
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}
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void _showErrorDialog(String message) {
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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title: Text(AppLocalizations.of(context)?.error ?? 'Error'),
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content: Text(message),
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actions: [
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TextButton(
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onPressed: () {
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Navigator.of(context).pop();
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widget.onNavigationCancelled?.call();
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},
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child: Text(AppLocalizations.of(context)?.ok ?? 'OK'),
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),
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],
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),
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);
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}
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@override
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Widget build(BuildContext context) {
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final l10n = AppLocalizations.of(context);
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return Scaffold(
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appBar: AppBar(
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title: Text(
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'${l10n?.navigatingTo ?? 'Navigating to'}: ${widget.delivery.name}',
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),
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elevation: 0,
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),
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body: _hasLocationPermission && _isNavigationInitialized
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? GoogleMapsNavigationView(
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onViewCreated: (controller) {
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_navigationViewController = controller;
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},
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initialCameraPosition: CameraPosition(
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target: LatLng(
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latitude: widget.destinationLatitude,
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longitude: widget.destinationLongitude,
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),
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zoom: 15,
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),
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useMarkerClusteringForDynamicMarkers: true,
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zoomGesturesEnabled: true,
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scrollGesturesEnabled: true,
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navigationUIEnabled: true,
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mapToolbarEnabled: true,
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)
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: Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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const CircularProgressIndicator(),
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const SizedBox(height: 16),
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Text(
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l10n?.initializingNavigation ??
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'Initializing navigation...',
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),
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],
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),
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),
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floatingActionButton: _hasLocationPermission && _isNavigationInitialized
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? FloatingActionButton(
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onPressed: () {
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widget.onNavigationCancelled?.call();
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Navigator.of(context).pop();
|
||||
},
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child: const Icon(Icons.close),
|
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)
|
||||
: null,
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||||
);
|
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}
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|
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@override
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void dispose() {
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super.dispose();
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}
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}
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@@ -0,0 +1,70 @@
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import 'package:permission_handler/permission_handler.dart';
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class LocationPermissionService {
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static const String _tcKey = 'navigation_tc_accepted';
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Future<LocationPermissionResult> requestLocationPermission() async {
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final status = await Permission.location.request();
|
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return switch (status) {
|
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PermissionStatus.granted => LocationPermissionResult.granted(),
|
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PermissionStatus.denied => LocationPermissionResult.denied(),
|
||||
PermissionStatus.permanentlyDenied =>
|
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LocationPermissionResult.permanentlyDenied(),
|
||||
_ => LocationPermissionResult.error(
|
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message: 'Unexpected permission status: $status',
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),
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||||
};
|
||||
}
|
||||
|
||||
Future<bool> hasLocationPermission() async {
|
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final status = await Permission.location.status;
|
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return status.isGranted;
|
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}
|
||||
|
||||
Future<void> openAppSettings() async {
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await openAppSettings();
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}
|
||||
}
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sealed class LocationPermissionResult {
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const LocationPermissionResult();
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factory LocationPermissionResult.granted() => _Granted();
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factory LocationPermissionResult.denied() => _Denied();
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factory LocationPermissionResult.permanentlyDenied() =>
|
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_PermanentlyDenied();
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factory LocationPermissionResult.error({required String message}) =>
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||||
_Error(message);
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||||
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R when<R>({
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||||
required R Function() granted,
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||||
required R Function() denied,
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||||
required R Function() permanentlyDenied,
|
||||
required R Function(String message) error,
|
||||
}) {
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return switch (this) {
|
||||
_Granted() => granted(),
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||||
_Denied() => denied(),
|
||||
_PermanentlyDenied() => permanentlyDenied(),
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||||
_Error(:final message) => error(message),
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||||
};
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||||
}
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||||
}
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||||
|
||||
final class _Granted extends LocationPermissionResult {
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const _Granted();
|
||||
}
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||||
|
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final class _Denied extends LocationPermissionResult {
|
||||
const _Denied();
|
||||
}
|
||||
|
||||
final class _PermanentlyDenied extends LocationPermissionResult {
|
||||
const _PermanentlyDenied();
|
||||
}
|
||||
|
||||
final class _Error extends LocationPermissionResult {
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||||
final String message;
|
||||
const _Error(this.message);
|
||||
}
|
||||
@@ -0,0 +1,184 @@
|
||||
import 'package:google_navigation_flutter/google_navigation_flutter.dart';
|
||||
|
||||
class NavigationSessionService {
|
||||
static final NavigationSessionService _instance =
|
||||
NavigationSessionService._internal();
|
||||
|
||||
factory NavigationSessionService() {
|
||||
return _instance;
|
||||
}
|
||||
|
||||
NavigationSessionService._internal();
|
||||
|
||||
bool _isSessionInitialized = false;
|
||||
GoogleMapsNavigationViewController? _controller;
|
||||
|
||||
bool get isSessionInitialized => _isSessionInitialized;
|
||||
|
||||
Future<void> initializeSession() async {
|
||||
if (_isSessionInitialized) {
|
||||
return;
|
||||
}
|
||||
|
||||
try {
|
||||
await GoogleMapsNavigationViewController.initializeNavigationSession();
|
||||
_isSessionInitialized = true;
|
||||
} catch (e) {
|
||||
throw NavigationSessionException('Failed to initialize session: $e');
|
||||
}
|
||||
}
|
||||
|
||||
Future<void> setController(
|
||||
GoogleMapsNavigationViewController controller,
|
||||
) async {
|
||||
_controller = controller;
|
||||
}
|
||||
|
||||
Future<NavigationRoute> calculateRoute({
|
||||
required double startLatitude,
|
||||
required double startLongitude,
|
||||
required double destinationLatitude,
|
||||
required double destinationLongitude,
|
||||
}) async {
|
||||
if (!_isSessionInitialized) {
|
||||
throw NavigationSessionException('Session not initialized');
|
||||
}
|
||||
|
||||
if (_controller == null) {
|
||||
throw NavigationSessionException('Controller not set');
|
||||
}
|
||||
|
||||
try {
|
||||
final origin = LatLng(
|
||||
latitude: startLatitude,
|
||||
longitude: startLongitude,
|
||||
);
|
||||
|
||||
final destination = LatLng(
|
||||
latitude: destinationLatitude,
|
||||
longitude: destinationLongitude,
|
||||
);
|
||||
|
||||
final waypoint = Waypoint(
|
||||
target: destination,
|
||||
);
|
||||
|
||||
// Set destinations will trigger route calculation
|
||||
await _controller!.setDestinations(
|
||||
destinations: [waypoint],
|
||||
);
|
||||
|
||||
return NavigationRoute(
|
||||
startLocation: origin,
|
||||
endLocation: destination,
|
||||
isCalculated: true,
|
||||
);
|
||||
} catch (e) {
|
||||
throw NavigationSessionException('Failed to calculate route: $e');
|
||||
}
|
||||
}
|
||||
|
||||
Future<void> startNavigation() async {
|
||||
if (!_isSessionInitialized || _controller == null) {
|
||||
throw NavigationSessionException('Navigation not properly initialized');
|
||||
}
|
||||
|
||||
try {
|
||||
await _controller!.startGuidance();
|
||||
} catch (e) {
|
||||
throw NavigationSessionException('Failed to start navigation: $e');
|
||||
}
|
||||
}
|
||||
|
||||
Future<void> stopNavigation() async {
|
||||
if (_controller == null) {
|
||||
return;
|
||||
}
|
||||
|
||||
try {
|
||||
await _controller!.stopGuidance();
|
||||
} catch (e) {
|
||||
throw NavigationSessionException('Failed to stop navigation: $e');
|
||||
}
|
||||
}
|
||||
|
||||
void addLocationListener(
|
||||
Function(LatLng location) onLocationUpdate,
|
||||
) {
|
||||
if (_controller == null) {
|
||||
throw NavigationSessionException('Controller not set');
|
||||
}
|
||||
|
||||
_controller!.addOnLocationUpdatedListener((location) {
|
||||
onLocationUpdate(location);
|
||||
});
|
||||
}
|
||||
|
||||
void addArrivalListener(Function(NavInfo info) onArrival) {
|
||||
if (_controller == null) {
|
||||
throw NavigationSessionException('Controller not set');
|
||||
}
|
||||
|
||||
_controller!.addOnArrivalListener((info) {
|
||||
onArrival(info);
|
||||
});
|
||||
}
|
||||
|
||||
void addRemainingDistanceListener(
|
||||
Function(int distanceMeters) onDistanceChange,
|
||||
) {
|
||||
if (_controller == null) {
|
||||
throw NavigationSessionException('Controller not set');
|
||||
}
|
||||
|
||||
_controller!.addOnRemainingDistanceChangedListener((distance) {
|
||||
onDistanceChange(distance);
|
||||
});
|
||||
}
|
||||
|
||||
void clearAllListeners() {
|
||||
if (_controller == null) {
|
||||
return;
|
||||
}
|
||||
|
||||
_controller!.removeAllListeners();
|
||||
}
|
||||
|
||||
Future<void> cleanup() async {
|
||||
try {
|
||||
if (_controller != null) {
|
||||
await stopNavigation();
|
||||
clearAllListeners();
|
||||
}
|
||||
_isSessionInitialized = false;
|
||||
_controller = null;
|
||||
} catch (e) {
|
||||
throw NavigationSessionException('Failed to cleanup: $e');
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
class NavigationRoute {
|
||||
final LatLng startLocation;
|
||||
final LatLng endLocation;
|
||||
final bool isCalculated;
|
||||
final int? distanceMeters;
|
||||
final Duration? estimatedTime;
|
||||
|
||||
NavigationRoute({
|
||||
required this.startLocation,
|
||||
required this.endLocation,
|
||||
required this.isCalculated,
|
||||
this.distanceMeters,
|
||||
this.estimatedTime,
|
||||
});
|
||||
}
|
||||
|
||||
class NavigationSessionException implements Exception {
|
||||
final String message;
|
||||
|
||||
NavigationSessionException(this.message);
|
||||
|
||||
@override
|
||||
String toString() => 'NavigationSessionException: $message';
|
||||
}
|
||||
Reference in New Issue
Block a user