Android集成高德Flutter地图（三）定位
一、集成高德地图
我的项目是需要显示地图的，所以定位是在地图的基础上实现的，当然定位也可以单独实现，获取到位置相关各种信息
二、集成高德定位
①、集成定位基础SDK
在Flutter项目中Android文件夹下的build.gradle添加
implementation('com.amap.api:location:6.1.0')
注意兼容性处理
我这里集成的是Flutter3.0插件
所以配置build.gradle为：
dependencies {
//高德地图Flutter插件内不包含基础SDK包，使用时请参考官网关于集成Android地图SDK和iOS地图SDK说明配置地图SDK
// 高德地图Flutter插件3.0.0版本基于地图SDK8.1.0开发，适配高德地图SDK版本8.1.0及以上版本
//高德定位Flutter插件3.0.0版本基于Android定位5.6.0和iOS定位2.8.0版本开发，适配Android定位5.6.0和iOS定位2.8.0及以上版本
// implementation('com.amap.api:map2d:6.0.0')
implementation('com.amap.api:3dmap:9.2.1')
implementation('com.amap.api:location:6.1.0')
}
这里注意有可能会冲突：
文档生成日期的 定位location最新版本是6.1.0 ，3dmap的最新版本9.4.0，经测试发现location使用6.1.0，3dmap使用9.2.1以上版本时（不包括9.2.1）编译会报错：
Execution failed for task ':app:checkDebugDuplicateClasses'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable
> Duplicate class com.amap.api.fence.DistrictItem found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.fence.DistrictItem$1 found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.fence.GeoFence found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.fence.GeoFence$1 found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.fence.GeoFenceClient found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.fence.GeoFenceListener found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.fence.PoiItem found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.fence.PoiItem$1 found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocation found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocation$1 found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocationClient found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocationClientOption found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocationClientOption$1 found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocationClientOption$2 found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocationClientOption$AMapLocationMode found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocationClientOption$AMapLocationProtocol found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocationClientOption$AMapLocationPurpose found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocationClientOption$GeoLanguage found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocationListener found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.AMapLocationQualityReport found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.APSService found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.CoordUtil found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.CoordinateConverter found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.CoordinateConverter$1 found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.CoordinateConverter$CoordType found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.DPoint found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.DPoint$1 found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.UmidtokenInfo found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.UmidtokenInfo$1 found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
Duplicate class com.amap.api.location.UmidtokenInfo$a found in modules jetified-3dmap-9.4.0 (com.amap.api:3dmap:9.4.0) and jetified-location-6.1.0 (com.amap.api:location:6.1.0)
- 解决办法：
将3dmap使用8.1.0–9.2.1版本
②、定位权限动态申请
记得处理6.0以上系统的动态申请定位权限：
我这里使用插件：
```dart
permission_handler: 10.0.1
requestPermiss() async {
Map<Permission, PermissionStatus> statuses = await [
Permission.location,
// Permission.storage,
// Permission.camera,
].request();
//验证权限是否授权
var status = await Permission.location.status;
if (status == PermissionStatus.granted) {
LogUtil.d('定位权限：true');
//已经授权
} else {
LogUtil.d('定位权限：false');
//退出应用
Future.value(true);
}
}
③、高德定位文档里面需要首先设置权限和key代码如下：
StreamSubscription<Map<String, Object>>? _locationListener;
AMapFlutterLocation _locationPlugin = new AMapFlutterLocation();
void initState() {
super.initState();
initLocation();
}
/*地
图定位*/
void initLocation() {
//高德定位
AMapFlutterLocation.updatePrivacyShow(true, true);
AMapFlutterLocation.updatePrivacyAgree(true);
AMapFlutterLocation.setApiKey(
"8c278373b54c9c393c74f1d1a2d31d49", "ios ApiKey");
///iOS 获取native精度类型
if (Platform.isIOS) {
requestAccuracyAuthorization();
}
///注册定位结果监听
_locationListener = _locationPlugin
.onLocationChanged()
.listen((Map<String, Object> result) {
setState(() {
_locationResult = result;
LogUtils.e("高德定位==========="+result.toString());
LogUtils.e("高德定位latitude==========="+result['latitude'].toString());
LogUtils.e("高德定位longitude: ==========="+result['longitude'].toString());
LogUtils.e("高德定位country: ==========="+result['country'].toString());
LogUtils.e("高德定位province: ==========="+result['province'].toString());
LogUtils.e("高德定位city: ==========="+result['city'].toString());
LogUtils.e("高德定位city: ==========="+result['city'].toString());
LogUtils.e("高德定位district: ==========="+result['district'].toString());
LogUtils.e("高德定位adCode: ==========="+result['adCode'].toString());
});
});
_setLocationOption();
}
设置定位参数_setLocationOption()
///设置定位参数
void _setLocationOption() {
if (null != _locationPlugin) {
AMapLocationOption locationOption = new AMapLocationOption();
///是否单次定位
locationOption.onceLocation = false;
///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
///可选值：
///[AMapLocationMode.Battery_Saving]
///[AMapLocationMode.Device_Sensors]
///[AMapLocationMode.Hight_Accuracy]
locationOption.locationMode = AMapLocationMode.Hight_Accuracy;
///设置iOS端的定位最小更新距离
locationOption.distanceFilter = -1;
///设置iOS端期望的定位精度
/// 可选值：
/// [DesiredAccuracy.Best] 最高精度
/// [DesiredAccuracy.BestForNavigation] 适用于导航场景的高精度
/// [DesiredAccuracy.NearestTenMeters] 10米
/// [DesiredAccuracy.Kilometer] 1000米
/// [DesiredAccuracy.ThreeKilometers] 3000米
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
_startLocation();
}
}
ios配置requestAccuracyAuthorization()
///获取iOS native的accuracyAuthorization类型
void requestAccuracyAuthorization() async {
AMapAccuracyAuthorization currentAccuracyAuthorization =
await _locationPlugin.getSystemAccuracyAuthorization();
if (currentAccuracyAuthorization ==
AMapAccuracyAuthorization.AMapAccuracyAuthorizationFullAccuracy) {
print("精确定位类型");
} else if (currentAccuracyAuthorization ==
AMapAccuracyAuthorization.AMapAccuracyAuthorizationReducedAccuracy) {
print("模糊定位类型");
} else {
print("未知定位类型");
}
}
开始定位_startLocation()
///开始定位
void _startLocation() {
if (null != _locationPlugin) {
_locationPlugin.startLocation();
}
}
///停止定位
void _stopLocation() {
if (null != _locationPlugin) {
_locationPlugin.stopLocation();
}
}
页面销毁时移除处理
void dispose() {
super.dispose();
///移除定位监听
if (null != _locationListener) {
_locationListener!.cancel();
}
///销毁定位
if (null != _locationPlugin) {
_locationPlugin.destroy();
}
}
结果打印：
高德定位==========={callbackTime: 2022-10-10 16:45:06, locationTime: 2022-10-10 16:44:39, locationType: 4, latitude: 34.791413, longitude: 113.80804, accuracy: 73.0, altitude: 0.0, bearing: 0.0, speed: 0.0, country: 中国, province: 河南省, city: 郑州市, district: 金水区, street: 中道东路, streetNumber: 195号, cityCode: 0371, adCode: 410105, address: 河南省郑州市金水区中道东路195号靠近正商博雅广场, description: 在正商博雅广场附近}
I/flutter ( 6925): Flutter_Gas_Client | 高德定位latitude===========34.791413
I/flutter ( 6925): Flutter_Gas_Client | 高德定位longitude: ===========113.80804
I/flutter ( 6925): Flutter_Gas_Client | 高德定位country: ===========中国
I/flutter ( 6925): Flutter_Gas_Client | 高德定位province: ===========河南省
I/flutter ( 6925): Flutter_Gas_Client | 高德定位city: ===========郑州市
I/flutter ( 6925): Flutter_Gas_Client | 高德定位city: ===========郑州市
I/flutter ( 6925): Flutter_Gas_Client | 高德定位district: ===========金水区
I/flutter ( 6925): Flutter_Gas_Client | 高德定位adCode: ===========410105
④、在地图上显示自己的位置
MyLocationStyleOptions _myLocationStyleOptions =
MyLocationStyleOptions(true);
final AMapWidget map = AMapWidget(
privacyStatement: ConstConfig.amapPrivacyStatement,
apiKey: ConstConfig.amapApiKeys,
//地图样式 默认普通地图 普通视图 normal,卫星视图 satellite, 夜间视图 night, 导航视图 navi, 公交视图 bus,
mapType: MapType.normal,
//是否显示3D地图
buildingsEnabled: true,
//设置地图默认中心点
// initialCameraPosition:
// CameraPosition(target: LatLng(34.76, 113.78), zoom: 10),
//是否显示指南针
compassEnabled: true,
//比例尺是否显示
scaleEnabled: true,
//是否显示路况信息
trafficEnabled: false,
//是否显示底图文字
labelsEnabled: true,
//旋转手势
rotateGesturesEnabled: true,
//滑动手势
scrollGesturesEnabled: true,
//倾斜手势
tiltGesturesEnabled: true,
//缩放手势
zoomGesturesEnabled: true,
//地图创建完成回调,成功后会返回AMapController对象
onMapCreated: onMapCreated,
//地图移动回调
onCameraMove: _onCameraMove,
// //创建地图时，给marker属性赋值一个空的set，否则后续无法添加marker
markers: Set<Marker>.of(_markers.values),
//当前位置显示
myLocationStyleOptions: _myLocationStyleOptions/*MyLocationStyleOptions(
true,
circleFillColor: Colors.lightBlue,
circleStrokeColor: Colors.blue,
circleStrokeWidth: 1,
),*/
);
显示效果：
④.1 定位显示范围：需要放大后一定比例后才显示
MyLocationStyleOptions(
true,
circleFillColor: Colors.lightBlue,
circleStrokeColor: Colors.blue,
circleStrokeWidth: 1,
)
显示效果：
④.2 自定义定位图标
myLocationStyleOptions: MyLocationStyleOptions(
true,
icon:BitmapDescriptor.fromIconPath('image/icon_del.png')
),
显示效果：
三、地图+定位完整界面代码如下：
import 'dart:async';
import 'dart:io';
import 'dart:typed_data';
import 'package:amap_flutter_location/amap_location_option.dart';
import 'package:amap_flutter_map/amap_flutter_map.dart';
import 'package:common_utils/common_utils.dart';
import 'package:flutter/cupertino.dart';
import 'package:amap_flutter_base/amap_flutter_base.dart';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:frametrim/map/MapImageUtil.dart';
import 'package:frametrim/utility/log_utils.dart';
import '../../map/const_config.dart';
import 'package:amap_flutter_location/amap_flutter_location.dart';
/*政府端
* 实时监控*/
class GovernmentMonitorPage extends StatefulWidget {
State<StatefulWidget> createState() => GovernmentMonitorState();
}
class GovernmentMonitorState extends State<GovernmentMonitorPage> {
AMapController? _mapController;
//需要先设置一个空的map赋值给AMapWidget的markers，否则后续无法添加marker
final Map<String, Marker> _markers = <String, Marker>{};
late List<LatLng> makLocations = [
LatLng(34.80, 113.66), //金水
LatLng(34.72, 113.64), //二七
LatLng(34.75, 113.68), //管城
LatLng(34.75, 113.61), //中原
LatLng(34.87, 113.62) //惠济
];
late List<String> makerText = ['金水区150', '二七区25', '管城区100', '中原区32', '惠济56'];
Map<String, Object>? _locationResult;
StreamSubscription<Map<String, Object>>? _locationListener;
AMapFlutterLocation _locationPlugin = new AMapFlutterLocation();
///自定义定位小蓝点
MyLocationStyleOptions _myLocationStyleOptions =
MyLocationStyleOptions(true);
void initState() {
super.initState();
initLocation();
}
Widget build(BuildContext context) {
///使用默认属性创建一个地图
final AMapWidget map = AMapWidget(
privacyStatement: ConstConfig.amapPrivacyStatement,
apiKey: ConstConfig.amapApiKeys,
//地图样式 默认普通地图 普通视图 normal,卫星视图 satellite, 夜间视图 night, 导航视图 navi, 公交视图 bus,
mapType: MapType.normal,
//是否显示3D地图
buildingsEnabled: true,
//设置地图默认中心点
// initialCameraPosition:
// CameraPosition(target: LatLng(34.76, 113.78), zoom: 10),
//是否显示指南针
compassEnabled: true,
//比例尺是否显示
scaleEnabled: true,
//是否显示路况信息
trafficEnabled: false,
//是否显示底图文字
labelsEnabled: true,
//旋转手势
rotateGesturesEnabled: true,
//滑动手势
scrollGesturesEnabled: true,
//倾斜手势
tiltGesturesEnabled: true,
//缩放手势
zoomGesturesEnabled: true,
//地图创建完成回调,成功后会返回AMapController对象
onMapCreated: onMapCreated,
//地图移动回调
onCameraMove: _onCameraMove,
// //创建地图时，给marker属性赋值一个空的set，否则后续无法添加marker
markers: Set<Marker>.of(_markers.values),
myLocationStyleOptions: /*_myLocationStyleOptions*/MyLocationStyleOptions(
true,
icon:BitmapDescriptor.fromIconPath('image/icon_del.png')
),
);
return Scaffold(
body: AnnotatedRegion(
value: SystemUiOverlayStyle.dark,
child: Container(
height: MediaQuery
.of(context)
.size
.height,
width: MediaQuery
.of(context)
.size
.width,
// child: Text('11'),
child: map,
),
),
);
}
void onMapCreated(AMapController controller) {
setState(() {
_mapController = controller;
getApprovalNumber();
_changeCameraPosition();
_changeZoom();
for (int i = 0; i < makLocations.length; i++) {
_addAreaMarker(makLocations[i], i);
}
});
}
//地图移动回调
void _onCameraMove(CameraPosition cameraPosition) {
if (null == cameraPosition) {
return;
}
print('onCameraMove===> ${cameraPosition.toMap()}');
}
// 获取审图号
void getApprovalNumber() async {
//普通地图审图号
String? mapContentApprovalNumber =
await _mapController?.getMapContentApprovalNumber();
//卫星地图审图号
String? satelliteImageApprovalNumber =
await _mapController?.getSatelliteImageApprovalNumber();
}
//改变地图中心点
void _changeCameraPosition() {
_mapController?.moveCamera(
CameraUpdate.newCameraPosition(
CameraPosition(
//中心点
target: LatLng(34.80, 113.66),
//缩放级别
zoom: 13,
//俯仰角0°~45°（垂直与地图时为0）
tilt: 30,
//偏航角 0~360° (正北方为0)
bearing: 0),
),
animated: true,
);
}
//缩放地图级别
void _changeZoom() {
CameraUpdate.zoomTo(18);
}
///添加一个区域marker
Future<void> _addAreaMarker(LatLng mLatLng, int index) async {
final _markerPosition = mLatLng;
Widget widget = await buildAreaMarkWidget(index);
Uint8List? bd = await MapImageUtil.convertWidgetToImage(widget);
final Marker marker = Marker(
position: _markerPosition,
//使用默认hue的方式设置Marker的图标
icon: BitmapDescriptor.fromBytes(bd!),
// icon: BitmapDescriptor.fromIconPath('image/distract_bg.png')
onTap: (id) {
LogUtil.d('点击Marker$id');
setState(() {
_markers.clear();
for (int i = 0; i < makLocations.length; i++) {
_addPointMarker(makLocations[i], i);
}
});
});
//调用setState触发AMapWidget的更新，从而完成marker的添加
setState(() {
//将新的marker添加到map里
_markers[marker.id] = marker;
});
}
///添加一个点marker-点
Future<void> _addPointMarker(LatLng mLatLng, int index) async {
final _markerPosition = mLatLng;
Widget widget = await buildPointMarkWidget(index);
Uint8List? bd = await MapImageUtil.convertWidgetToImage(widget);
final Marker marker = Marker(
position: _markerPosition,
//使用默认hue的方式设置Marker的图标
icon: BitmapDescriptor.fromBytes(bd!),
// icon: BitmapDescriptor.fromIconPath('image/distract_bg.png')
onTap: (id) {
LogUtil.d('点击Marker$id');
});
//调用setState触发AMapWidget的更新，从而完成marker的添加
setState(() {
//将新的marker添加到map里
_markers[marker.id] = marker;
});
}
//Mark样式-区域
Future<Widget> buildAreaMarkWidget(int index) async {
//带图片的时候需要先把图片缓存一下，否则不显示
AssetImage provider = AssetImage('image/distract_bg.png');
await precacheImage(provider, context);
// Image image = Image(image: provider);
return Container(
alignment: Alignment.center,
width: 150,
height: 150,
decoration: BoxDecoration(
image: DecorationImage(image: AssetImage('image/distract_bg.png')),
),
child: Directionality(
textDirection: TextDirection.ltr,
child: Text(makerText[index],
style: TextStyle(
color: Colors.white,
fontSize: 25,
fontWeight: FontWeight.bold))),
);
}
//Mark样式-区域
Future<Widget> buildPointMarkWidget(int index) async {
//带图片的时候需要先把图片缓存一下，否则不显示
AssetImage provider = AssetImage('image/cb_select.png');
await precacheImage(provider, context);
// Image image = Image(image: provider);
return Container(
alignment: Alignment.center,
width: 150,
height: 150,
decoration: BoxDecoration(
image: DecorationImage(image: AssetImage('image/cb_select.png')),
),
child: Directionality(
textDirection: TextDirection.ltr,
child: Text("11",
style: TextStyle(
color: Colors.white,
fontSize: 25,
fontWeight: FontWeight.bold))),
);
}
/*地图定位*/
void initLocation() {
//高德定位
// AMapFlutterLocation.updatePrivacyShow(true, true);
// AMapFlutterLocation.updatePrivacyAgree(true);
// AMapFlutterLocation.setApiKey(
// "8c278373b54c9c393c74f1d1a2d31d49", "ios ApiKey");
///iOS 获取native精度类型
if (Platform.isIOS) {
requestAccuracyAuthorization();
}
///注册定位结果监听
_locationListener = _locationPlugin
.onLocationChanged()
.listen((Map<String, Object> result) {
setState(() {
_locationResult = result;
LogUtils.e("高德定位==========="+result.toString());
LogUtils.e("高德定位latitude==========="+result['latitude'].toString());
LogUtils.e("高德定位longitude: ==========="+result['longitude'].toString());
LogUtils.e("高德定位country: ==========="+result['country'].toString());
LogUtils.e("高德定位province: ==========="+result['province'].toString());
LogUtils.e("高德定位city: ==========="+result['city'].toString());
LogUtils.e("高德定位city: ==========="+result['city'].toString());
LogUtils.e("高德定位district: ==========="+result['district'].toString());
LogUtils.e("高德定位adCode: ==========="+result['adCode'].toString());
});
});
_setLocationOption();
}
///设置定位参数
void _setLocationOption() {
if (null != _locationPlugin) {
AMapLocationOption locationOption = new AMapLocationOption();
///是否单次定位
locationOption.onceLocation = false;
///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
///可选值：
///[AMapLocationMode.Battery_Saving]
///[AMapLocationMode.Device_Sensors]
///[AMapLocationMode.Hight_Accuracy]
locationOption.locationMode = AMapLocationMode.Hight_Accuracy;
///设置iOS端的定位最小更新距离
locationOption.distanceFilter = -1;
///设置iOS端期望的定位精度
/// 可选值：
/// [DesiredAccuracy.Best] 最高精度
/// [DesiredAccuracy.BestForNavigation] 适用于导航场景的高精度
/// [DesiredAccuracy.NearestTenMeters] 10米
/// [DesiredAccuracy.Kilometer] 1000米
/// [DesiredAccuracy.ThreeKilometers] 3000米
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
_startLocation();
}
}
///获取iOS native的accuracyAuthorization类型
void requestAccuracyAuthorization() async {
AMapAccuracyAuthorization currentAccuracyAuthorization =
await _locationPlugin.getSystemAccuracyAuthorization();
if (currentAccuracyAuthorization ==
AMapAccuracyAuthorization.AMapAccuracyAuthorizationFullAccuracy) {
print("精确定位类型");
} else if (currentAccuracyAuthorization ==
AMapAccuracyAuthorization.AMapAccuracyAuthorizationReducedAccuracy) {
print("模糊定位类型");
} else {
print("未知定位类型");
}
}
///开始定位
void _startLocation() {
if (null != _locationPlugin) {
_locationPlugin.startLocation();
}
}
///停止定位
void _stopLocation() {
if (null != _locationPlugin) {
_locationPlugin.stopLocation();
}
}
void dispose() {
super.dispose();
///移除定位监听
if (null != _locationListener) {
_locationListener!.cancel();
}
///销毁定位
if (null != _locationPlugin) {
_locationPlugin.destroy();
}
}
}
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