使用了两个官方插件：
amap_flutter_map | Flutter Package
amap_flutter_location | Flutter Package
#高德定位
amap_flutter_location: ^3.0.0
#高德地图
amap_flutter_map: ^3.0.0按照官方集成即可；但是实际过程中出现的两个插曲：
Android 原生SDK版本不一致的错误；修改一致就能解决
查看官方插件SDK 版本：
然后这里写入 申请的 Key
其他调用什么的和官方文档 都没有太大区别；
这里可以选取地图上的点的位置：
源码：代码没有整理，只是验证性的逻辑
import 'dart:async';
import 'package:amap_flutter_base/amap_flutter_base.dart';
import 'package:amap_flutter_location/amap_flutter_location.dart';
import 'package:amap_flutter_location/amap_location_option.dart';
import 'package:amap_flutter_map/amap_flutter_map.dart';
import 'package:examine/components/common/button_text.dart';
import 'package:examine/utils/app_screen.dart';
import 'package:flutter/material.dart';
import 'package:permission_handler/permission_handler.dart';
class AMap extends StatefulWidget {
const AMap({Key? key}) : super(key: key);
@override
_AMapState createState() => _AMapState();
}
class _AMapState extends State<AMap> {
late final CameraPosition _kInitialPosition = const CameraPosition(
target: LatLng(39.909187, 116.397451),
zoom: 10.0,
);
late AMapController _mapController;
final List<Widget> _approvalNumberWidget = [];
Map<String, Object>? _locationResult;
StreamSubscription<Map<String, Object>>? _locationListener;
final AMapFlutterLocation _locationPlugin = AMapFlutterLocation();
final Set<Marker> _markers = Set();
@override
void initState() {
// TODO: implement initState
super.initState();
/// 动态申请定位权限
requestPermission();
///注册定位结果监听
_locationListener = _locationPlugin.onLocationChanged().listen(
(Map<String, Object> result) {
setState(() {
_locationResult = result;
print('-------------------_locationResult: $_locationResult');
if (result.containsKey('latitude') &&
result.containsKey('longitude')) {
// _kInitialPosition = CameraPosition(
// target: LatLng(
// result['latitude'] as double, result['longitude'] as double),
// zoom: 10.0,
// );
_markers.add(
Marker(
// icon: BitmapDescriptor.fromIconPath(
// 'assets/images/tabBar/taBar1-normal.png'),
draggable: true,
clickable: true,
onTap: (String id) {
print('-------------onTap id:$id');
},
onDragEnd: (String id, LatLng endPosition) {
print('-------------id:$id, endPosition:$endPosition');
},
position: LatLng(result['latitude'] as double,
result['longitude'] as double),
),
);
/// 移动地图到 当前（或则你想要的位置） 位置
_mapController.moveCamera(
// CameraUpdate.newLatLng(
// LatLng(result['latitude'] as double,
// result['longitude'] as double),
// ),
CameraUpdate.newLatLngZoom(
LatLng(result['latitude'] as double,
result['longitude'] as double),
18),
);
}
});
},
);
}
@override
void dispose() {
// TODO: implement dispose
super.dispose();
///移除定位监听
if (null != _locationListener) {
_locationListener?.cancel();
}
///销毁定位
_locationPlugin.destroy();
}
///设置定位参数
void _setLocationOption() {
AMapLocationOption locationOption = new AMapLocationOption();
///是否单次定位
locationOption.onceLocation = true;
///是否需要返回逆地理信息
locationOption.needAddress = true;
///逆地理信息的语言类型
locationOption.geoLanguage = GeoLanguage.DEFAULT;
locationOption.desiredLocationAccuracyAuthorizationMode =
AMapLocationAccuracyAuthorizationMode.ReduceAccuracy;
locationOption.fullAccuracyPurposeKey = "AMapLocationScene";
///设置Android端连续定位的定位间隔
locationOption.locationInterval = 2000;
///设置Android端的定位模式<br>
///可选值：<br>
///<li>[AMapLocationMode.Battery_Saving]</li>
///<li>[AMapLocationMode.Device_Sensors]</li>
///<li>[AMapLocationMode.Hight_Accuracy]</li>
locationOption.locationMode = AMapLocationMode.Hight_Accuracy;
///设置iOS端的定位最小更新距离<br>
locationOption.distanceFilter = -1;
///设置iOS端期望的定位精度
/// 可选值：<br>
/// <li>[DesiredAccuracy.Best] 最高精度</li>
/// <li>[DesiredAccuracy.BestForNavigation] 适用于导航场景的高精度 </li>
/// <li>[DesiredAccuracy.NearestTenMeters] 10米 </li>
/// <li>[DesiredAccuracy.Kilometer] 1000米</li>
/// <li>[DesiredAccuracy.ThreeKilometers] 3000米</li>
locationOption.desiredAccuracy = DesiredAccuracy.Best;
///设置iOS端是否允许系统暂停定位
locationOption.pausesLocationUpdatesAutomatically = false;
///将定位参数设置给定位插件
_locationPlugin.setLocationOption(locationOption);
}
///开始定位
void _startLocation() {
///开始定位之前设置定位参数
_setLocationOption();
_locationPlugin.startLocation();
}
///停止定位
void _stopLocation() {
_locationPlugin.stopLocation();
}
@override
Widget build(BuildContext context) {
final AMapWidget map = AMapWidget(
initialCameraPosition: _kInitialPosition,
onMapCreated: onMapCreated,
markers: _markers,
);
return Scaffold(
appBar: AppBar(
title: Text('AMap'),
),
body: Column(children: [
Container(
width: AppScreen.width,
height: 500,
color: Colors.amber,
child: Stack(children: [
map,
Positioned(
right: 5,
bottom: 5,
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10),
color: Colors.indigo.withOpacity(0.5),
),
child: IconButton(
icon: const Icon(
Icons.location_searching_rounded,
color: Colors.white,
),
onPressed: () {
_startLocation();
},
),
),
),
]),
),
Expanded(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
ButtonText(
title: '开始定位',
onTap: () {
print('开始定位');
_startLocation();
},
),
ButtonText(
title: '结束定位',
onTap: () {
print('结束定位');
_stopLocation();
},
),
],
),
)
]));
}
void onMapCreated(AMapController controller) {
setState(() {
_mapController = controller;
getApprovalNumber();
});
}
void getApprovalNumber() async {
//普通地图审图号
String? mapContentApprovalNumber =
await _mapController.getMapContentApprovalNumber();
//卫星地图审图号
String? satelliteImageApprovalNumber =
await _mapController.getSatelliteImageApprovalNumber();
setState(() {
if (null != mapContentApprovalNumber) {
_approvalNumberWidget.add(Text(mapContentApprovalNumber));
}
if (null != satelliteImageApprovalNumber) {
_approvalNumberWidget.add(Text(satelliteImageApprovalNumber));
}
});
print('地图审图号（普通地图）: $mapContentApprovalNumber');
print('地图审图号（卫星地图): $satelliteImageApprovalNumber');
}
/// 动态申请定位权限
void requestPermission() async {
// 申请权限
bool hasLocationPermission = await requestLocationPermission();
if (hasLocationPermission) {
print("定位权限申请通过");
} else {
print("定位权限申请不通过");
}
}
/// 申请定位权限
/// 授予定位权限返回true， 否则返回false
Future<bool> requestLocationPermission() async {
//获取当前的权限
var status = await Permission.location.status;
if (status == PermissionStatus.granted) {
//已经授权
return true;
} else {
//未授权则发起一次申请
status = await Permission.location.request();
if (status == PermissionStatus.granted) {
return true;
} else {
return false;
}
}
}
}