我目前在使用 Google 地图的 homepage.dart 中遇到错误，当我从 Firebase 数据库更改时，此错误开始发生，我已经完成了 Firebase 和地图 API 的所有配置，但我找不到解决方案。 这是错误：
W/MobStoreFlagStore(10088): java.util.concurrent.ExecutionException: m.few: 17: 17: API: Phenotype.API 在此设备上不可用。连接失败：cmc{statusCode=DEVELOPER_ERROR，resolution=null，message=null}
这是我的代码
import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:geolocator/geolocator.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:firebase_database/firebase_database.dart';
import 'package:geocoding/geocoding.dart';
class HomePage extends StatefulWidget {
const HomePage({Key? key});
@override
State<HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
final Completer<GoogleMapController> googleMapCompleterController =
Completer<GoogleMapController>();
GoogleMapController? controllerGoogleMap;
Position? currentPositionOfUser;
late List<dynamic> _fletesList = [];
Set<Marker> _markers = {};
double calculateDistance(LatLng pos1, LatLng pos2) {
return Geolocator.distanceBetween(
pos1.latitude, pos1.longitude, pos2.latitude, pos2.longitude);
}
void updateMapTheme(GoogleMapController controller) {
getJsonFileFromThemes("themes/night_style.json")
.then((value) => setGoogleMapStyle(value, controller));
}
Future<String> getJsonFileFromThemes(String mapStylePath) async {
ByteData byteData = await rootBundle.load(mapStylePath);
var list = byteData.buffer
.asUint8List(byteData.offsetInBytes, byteData.lengthInBytes);
return utf8.decode(list);
}
setGoogleMapStyle(String setGoogleMapStyle, GoogleMapController controller) {
controller.setMapStyle(setGoogleMapStyle);
}
Future<LatLng?> getLatLngFromAddress(String address) async {
try {
List<Location> locations = await locationFromAddress(address);
if (locations.isNotEmpty) {
double latitude = locations.first.latitude;
double longitude = locations.first.longitude;
return LatLng(latitude, longitude);
}
} catch (e) {
print("Error obtaining coordinates: $e");
}
return null;
}
Future<void> _getFletesFromFirebase() async {
DatabaseReference databaseReference =
FirebaseDatabase.instance.ref().child('fletes');
DatabaseEvent event = await databaseReference.once();
DataSnapshot dataSnapshot = event.snapshot;
if (dataSnapshot.value != null) {
if (dataSnapshot.value is Map) {
Map<dynamic, dynamic> mapData =
dataSnapshot.value as Map<dynamic, dynamic>;
if (mounted) {
setState(() {
mapData.forEach((key, value) async {
String startAddress = value['startAddress'];
String endAddress = value['endAddress'];
LatLng? startCoords = await getLatLngFromAddress(startAddress);
LatLng? endCoords = await getLatLngFromAddress(endAddress);
if (startCoords != null) {
_markers.add(
Marker(
markerId: MarkerId(key.toString()),
position: startCoords,
infoWindow: InfoWindow(
title: 'Inicio del Viaje',
),
onTap: () {
_showFleteInfoModal(value);
},
),
);
}
if (endCoords != null) {
_markers.add(
Marker(
markerId: MarkerId(key.toString() + "_end"),
position: endCoords,
infoWindow: InfoWindow(
title: 'Entrega del Viaje',
),
),
);
}
});
_addMarkersToMap();
});
}
}
}
}
void _showFleteInfoModal(Map<dynamic, dynamic> fleteInfo) {
showDialog(
context: context,
builder: (BuildContext context) {
return AlertDialog(
title: Text('Detalles del Flete'),
content: SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
_buildInfoRow('Descripción', fleteInfo['description'] ?? ""),
_buildInfoRow('Fecha', fleteInfo['date'] ?? ""),
_buildInfoRow(
'Dirección de inicio', fleteInfo['startAddress'] ?? ""),
_buildInfoRow(
'Dirección de entrega', fleteInfo['endAddress'] ?? ""),
_buildInfoRow('Hora', fleteInfo['time'] ?? ""),
_buildInfoRow(
'Tipo de vehículo', fleteInfo['vehicleType'] ?? ""),
_buildInfoRow('Pago', fleteInfo['offerRate'] ?? ""),
],
),
),
actions: [
ElevatedButton(
onPressed: () {
// Lógica para aceptar el flete si es necesario
Navigator.of(context).pop();
},
child: Text('Aceptar Flete'),
),
TextButton(
onPressed: () {
Navigator.of(context).pop();
},
child: Text('Cerrar'),
),
],
);
},
);
}
Widget _buildInfoRow(String title, String value) {
return Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
title,
style: TextStyle(
fontWeight: FontWeight.bold,
),
),
SizedBox(height: 4),
Text(value),
Divider(
color: Colors.grey,
thickness: 0.5,
),
],
),
);
}
void _addMarkersToMap() {
_fletesList.forEach((flete) {
double latitude = double.parse(flete['latitud'].toString());
double longitude = double.parse(flete['longitud'].toString());
LatLng fleteLocation = LatLng(latitude, longitude);
_markers.add(
Marker(
markerId: MarkerId(
flete['idflete'].toString()), // ID único del marcador
position: fleteLocation,
infoWindow: InfoWindow(
title: flete['description'], // Muestra la descripción del flete
),
),
);
});
}
@override
void initState() {
super.initState();
_getFletesFromFirebase();
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Stack(
children: [
GoogleMap(
padding: EdgeInsets.only(top: 100),
mapType: MapType.normal,
myLocationEnabled: true,
initialCameraPosition: CameraPosition(
target: LatLng(0, 0), // Coordenadas iniciales del mapa
zoom: 12.0,
),
onMapCreated: (GoogleMapController mapController) {
controllerGoogleMap = mapController;
updateMapTheme(controllerGoogleMap!);
googleMapCompleterController.complete(controllerGoogleMap);
// Llama a la función para obtener los marcadores después de que el mapa se haya creado
_getCurrentLiveLocationOfDriver();
},
markers: _markers,
),
Positioned(
top: 16.0,
right: 16.0,
child: ElevatedButton(
onPressed: () {
// Llama a la función para obtener los marcadores al presionar el botón
_getFletesFromFirebase();
},
child: Text('Mostrar viajes disponibles'),
),
),
],
),
);
}
void _getCurrentLiveLocationOfDriver() async {
Position positionOfUser = await Geolocator.getCurrentPosition(
desiredAccuracy: LocationAccuracy.bestForNavigation);
currentPositionOfUser = positionOfUser;
LatLng positionOfUserInLatLng = LatLng(
currentPositionOfUser!.latitude, currentPositionOfUser!.longitude);
CameraPosition cameraPosition =
CameraPosition(target: positionOfUserInLatLng, zoom: 15);
controllerGoogleMap!
.animateCamera(CameraUpdate.newCameraPosition(cameraPosition));
}
}
我使用 flutterfire 配置并启动了我正在使用的项目和 Android 应用程序，我已经在 Android 应用程序中配置了 ssh1 密钥，并且生成了另一个地图 API 密钥，但似乎没有任何效果。
检查您是否在 AndroidManifest 中正确输入了 API 密钥，如果不存在，则可能是导致错误的原因。 必须出现在应用程序标签中。
<meta-data android:name="com.google.android.geo.API_KEY"
android:value="XXXXXXxxX-XxxX-XXxxXXXxxXxXXXXx"/>