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AMap location plugin for flutter, supports single positioning and continuous positioning

高德地图定位flutter组件。

目前实现获取定位和监听定位功能。

1、申请一个key http://lbs.amap.com/api/ios-sdk/guide/create-project/get-key

直接在dart文件中设置key

ios #

  1. 在info.plist中增加:
<key>NSLocationWhenInUseUsageDescription</key>
<string>要用定位</string>
  1. iOS 9及以上版本使用后台定位功能, 需要保证"Background Modes"中的"Location updates"处于选中状态

3.使用地理围栏

iOS14及以上版本使用地理围栏功能,需要在plist中配置NSLocationTemporaryUsageDescriptionDictionary字典描述, 且添加自定义Key描述地理围栏的使用场景,此描述会在申请临时精确定位权限的弹窗中展示。 该回调触发条件:拥有定位权限,但是没有获得精确定位权限的情况下,会触发该回调。此方法实现调用申请临时精确定位权限API即可;

** 需要注意,在iOS9及之后版本的系统中,如果您希望程序在后台持续检测围栏触发行为,需要保证manager的 allowsBackgroundLocationUpdates 为 YES, 设置为YES的时候必须保证 Background Modes 中的 Location updates 处于选中状态,否则会抛出异常。

开始使用 #

高德定位功能 #

  • 设置key

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();

  final bool key = await setAMapKey(
      iosKey: 'ios key',
      androidKey: 'android key');

  if (key != null && key) print('高德地图ApiKey设置成功');

  runApp(MaterialApp(
      debugShowCheckedModeBanner: false, title: 'FlAMap', home: Home()));
}

  • 初始化定位参数
  Future<void> initialize() async {
    /// 获取权限
    if (getPermissions) return;

    /// 初始化AMap
    final bool data = await FlAMapLocation().initialize(AMapLocationOption());
    if (data) {
      show('初始化成功');
    }
  }

  • 单次获取定位
  Future<void> getLocation() async {
     /// 务必先初始化 并获取权限
    if (getPermissions) return;
    AMapLocation location =  await FlAMapLocation().getLocation(true);
  }

  • 开启定位变化监听
  Future<void> startLocationChange() async {
     /// 务必先初始化 并获取权限
    if (getPermissions) return;
    final bool data =
        await FlAMapLocation().startLocationChanged(onLocationChanged: 
            (AMapLocation location) {
      locationState.value = location;
      text.value = '位置更新$i次';
    });
   print(!data ? '开启成功' : '开启失败');
  }

  • 关闭定位变化监听
  void stopLocation(){
  FlAMapLocation().stopLocation();
  }
  • 关闭定位服务
  void dispose() {
    super.dispose();
    FlAMapLocation().dispose();
  }

高德地理围栏功能 #

  • 初始化地理围栏

  Future<void> get initialize async {
    final bool data = await FlAMapGeoFence().initialize(GeoFenceActivateAction.stayed);
    if (data) {
     show('初始化地理围栏:$data');
    }
  }

  • 关闭围栏服务
  void dispose() {
    super.dispose();
    FlAMapGeoFence().dispose();
  }
  • 根据POI添加围栏
  Future<void> addPOI() async {
  final AMapPoiModel model = AMapPoiModel(
                              keyword: '首开广场',
                              poiType: '写字楼',
                              city: '北京',
                              size: 1,
                              customId: '000FATE23(考勤打卡)');
  final bool state = await FlAMapGeoFence().addPOI(model);
  }
  • 根据坐标关键字添加围栏
  Future<void> addLatLong() async {
  final LatLong latLong = LatLong(39.933921, 116.372927);
                          final AMapLatLongModel model = AMapLatLongModel(
                              latLong: latLong,
                              keyword: '首开广场',
                              poiType: '',
                              customId: '000FATE23(考勤打卡)',
                              size: 20,
                              aroundRadius: 1000);
    final bool state = await FlAMapGeoFence().addLatLong(model);
  }
  • 添加行政区划围栏
  Future<void> addDistrict() async {
  final bool state = await FlAMapGeoFence().addDistrict(
                               keyword: '海淀区', customId: '000FATE23(考勤打卡)');
  }
  • 添加圆形围栏
  Future<void> addCircle() async {
  final LatLong latLong = LatLong(30.651411, 103.998638);
  final bool state = await FlAMapGeoFence().addCircle(
                              latLong: latLong,
                              radius: 10,
                              customId: '000FATE23(考勤打卡)');
  }
  • 添加多边形围栏
  Future<void> addCustom() async {
  final bool state = await FlAMapGeoFence().addCustom(latLongs: <LatLong>[
                            LatLong(39.933921, 116.372927),
                            LatLong(39.907261, 116.376532),
                            LatLong(39.900611, 116.418161),
                            LatLong(39.941949, 116.435497),
                          ], customId: '000FATE23(考勤打卡)');
  }
  • 获取所有围栏信息
  Future<void> getAll() async {
  /// 传入 customID 获取指定标识的围栏信息 仅支持ios
  final List<AMapGeoFenceModel> data = await FlAMapGeoFence().getAll();
  }
  • 删除地理围栏
  Future<void> remove() async {
  /// 传入 customID 删除指定标识的围栏
  /// 不传 删除所有围栏
  final bool state = await FlAMapGeoFence().remove();
  }
  • 暂停监听围栏
  Future<void> pause() async {
  /// 传入 customID 暂停指定标识的围栏
  /// 不传 暂停所有围栏
  final bool state = await FlAMapGeoFence().pause();
  }
  • 开始监听围栏
  Future<void> start() async {
  /// 传入 customID 开始指定标识的围栏
  /// 不传 开始所有围栏
  final bool state = await FlAMapGeoFence().start();
  }
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AMap location plugin for flutter, supports single positioning and continuous positioning

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