地理围栏 

功能场景

本示例展示了如何根据自身业务需要，创建不同种类和模式的地理围栏，用于车辆区域提醒、智能活动推送等场景。

Android

iOS

//mapopen-website-wiki.bj.bcebos.com/demos/AndroidVideos/地理围栏.mp4

扫码体验

使用产品

Android定位SDK

>

地理围栏

下载源码

核心接口

类

接口

描述

备注

addGeoFence(final String keyword, String poiType,final String city, int size,String customId);

添加围栏（POI行政区划检索围栏）

定位SDK V8.2.0 之后支持

GeoFenceClient

setActivateAction(int action)

设置当前创建的围栏的触发行为

定位SDK V8.2.0 之后支持

removeGeoFence()

清除所有围栏

定位SDK V8.2.0 之后支持

GeoFenceListener

onGeoFenceCreateFinished(List<GeoFence> geoFenceList,int errorCode)

监听围栏状态回调 geoFenceList ：本次创建的围栏列表（创建成功才有，不成功为空）errorCode：错误码 customId：本次操作对应的自定义业务ID(如果添加的时候没有设置customId,回调中也不会有)

定位SDK V8.2.0 之后支持

BaiduMap

addOverlay(OverlayOptions options)

向地图添加一个 Overlay

地图SDK

核心代码

示例Demo展示的是（圆形围栏，多边形围栏，POI行政区划检索围栏，POI圆形区域检索围栏，行政区域围栏）多种添加围栏添加方式。

1.添加围栏

JAVA

/**
* 添加围栏
*/
private void addFence () {
    // 初始化地理围栏
    fenceClient = new GeoFenceClient(getApplicationContext());
    // 创建pendingIntent
    fenceClient.createPendingIntent(GEOFENCE_BROADCAST_ACTION);
    // 在即将触发侦听行为时允许开启高精度定位模式(开启gps定位，gps定位结果优先)
    fenceClient.isHighAccuracyLoc(true);
    fenceClient.setGeoFenceListener(this);
    // 设置地理围栏的触发行为,默认为进入
    fenceClient.setActivateAction(GeoFenceClient.GEOFENCE_IN);
    //创建一个中心点坐标
    DPoint centerPoint = new DPoint(40.051D,116.300D);
    // 添加圆形围栏
    fenceClient.addGeoFence (centerPoint,GeoFenceClient.BD09LL,100,"业务ID");
    // 添加行政区
    fenceClient.addGeoFence("海淀区","业务ID");
    // 添加POI行政区划检索围栏
    fenceClient.addGeoFence("百度大厦","办公楼","北京",1," 0001");
    // 添加POI圆形区域检索围栏
    fenceClient.addGeoFence("一点点","餐饮",centerPoint,GeoFenceClient.BD09LL,1000F,10,"业务ID");
    List<DPoint>  points = new ArrayList<>();
    DPoint pointa = new DPoint(40.051D,116.300D);
    DPoint pointb = new DPoint(40.051D,116.300D);
    DPoint pointc = new DPoint(40.051D,116.300D);
    points.add(pointa);
    points.add(pointb);
    points.add(pointc);
    // 添加多边形围栏
    fenceClient.addGeoFence( points,GeoFenceClient.BD09LL, "业务ID");
}
                

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2.监听围栏状态回调

JAVA

List<GeoFence> fenceList = new ArrayList<>();
@Override
public void onGeoFenceCreateFinished(final List<GeoFence> geoFenceList,
    int errorCode, String customId) {
    Message msg = Message.obtain();
    if (errorCode == GeoFence.ADDGEOFENCE_SUCCESS) {
        fenceList.addAll(geoFenceList);
        msg.obj = customId;
        msg.what = 0;
    } else {
        msg.arg1 = errorCode;
        msg.what = 1;
    }
    handler.sendMessage(msg);
}                       
                

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3.在地图上绘制围栏

JAVA

private void drawFence(GeoFence fence) {
    switch (fence.getType()) {
        case GeoFence.TYPE_ROUND:
            drawCircle(fence, false);
            break;
        case GeoFence.TYPE_BDMAPPOI:
            drawCircle(fence, true);
            break;
        case GeoFence.TYPE_POLYGON: 
            drawPolygon(fence);
            break;
        default:
            break;
    }

    // 设置所有maker显示在当前可视区域地图中
    LatLngBounds bounds = boundsBuilder.build();
    MapStatusUpdate mapStatusUpdate = MapStatusUpdateFactory.newLatLngBounds(bounds, 50,
            50, 50, 50);
    // 更新地图状态
    mBdMap.animateMapStatus(mapStatusUpdate);
    removeMarkers();
}

/**
    * 绘制圆
    */
private void drawCircle(GeoFence fence, boolean isPoi) {
    LatLng center;
    int radius;
    if (isPoi) {
        BDLocation bdLocation = new BDLocation();
        bdLocation.setLatitude(fence.getCenter().getLatitude());
        bdLocation.setLongitude(fence.getCenter().getLongitude());
        BDLocation tempLocation = LocationClient
                .getBDLocationInCoorType(bdLocation, BDLocation.BDLOCATION_GCJ02_TO_BD09LL);
        center = new LatLng(tempLocation.getLatitude(),
                tempLocation.getLongitude());
    } else {
        center = centerLatLng;
    }
    radius = (int) fence.getRadius();
    // 绘制一个圆形
    if (center == null) {
        return;
    }
    mBdMap.addOverlay(new CircleOptions().center(center)
            .radius(radius)
            .fillColor(0x666495ED) // 填充颜色
            .stroke(new Stroke(3, 0xE66495ED)));
    boundsBuilder.include(center);

    if (!isPoi) {
        centerLatLng = null;
    }
}

/**
    *  绘制Polygon
    */
private void drawPolygon(GeoFence fence) {
    final List<DPoint> pointList = fence.getPoints();
    if (null == pointList || pointList.isEmpty()) {
        return;
    }
    List<LatLng> lst = new ArrayList<>();

    for (DPoint point: pointList) {
        lst.add(new LatLng(point.getLatitude(), point.getLongitude()));
        boundsBuilder.include(
                new LatLng(point.getLatitude(), point.getLongitude()));
    }
    mBdMap.addOverlay(new PolygonOptions()
            .points(polygonPoints)
            .fillColor(0x666495ED) // 填充颜色
            .stroke(new Stroke(5, 0xE66495ED)));

    if (polygonPoints!= null && polygonPoints.size() > 0) {
        polygonPoints.clear();
    }

}
                

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//mapopen-website-wiki.bj.bcebos.com/demos/iosVideos/location/地理围栏@1x.mp4

扫码体验

使用产品

iOS定位SDK

>

地理围栏

下载源码

核心接口

类

接口

描述

备注

- (void)addCircleRegionForMonitoringWithCenter:(CLLocationCoordinate2D)center radius:(CLLocationDistance)radius coorType:(BMKLocationCoordinateType)type customID:(NSString * _Nullable)customID;

添加一个圆形围栏

定位sdk

- (void)addPolygonRegionForMonitoringWithCoordinates:(CLLocationCoordinate2D * _Nonnull)coordinates count:(NSInteger)count coorType:(BMKLocationCoordinateType)type customID:(NSString * _Nullable)customID;

根据经纬度坐标数据添加一个闭合的多边形围栏，点与点之间按顺序尾部相连, 第一个点与最后一个点相连

定位sdk

BMKGeoFenceManager

- (void)removeAllGeoFenceRegions;

移除所有围栏

定位sdk

- (void)BMKGeoFenceManager:(BMKGeoFenceManager * _Nonnull)manager didAddRegionForMonitoringFinished:(NSArray <BMKGeoFenceRegion *> * _Nullable)regions customID:(NSString * _Nullable)customID error:(NSError * _Nullable)error;

添加地理围栏完成后的回调，成功与失败都会调用

定位sdk

- (void)BMKGeoFenceManager:(BMKGeoFenceManager * _Nonnull)manager didGeoFencesStatusChangedForRegion:(BMKGeoFenceRegion * _Nullable)region customID:(NSString * _Nullable)customID error:(NSError * _Nullable)error;

地理围栏状态改变时回调，当围栏状态的值发生改变，定位失败都会调用

定位sdk

BMKLocationManager

- (void)startUpdatingLocation;

开始连续定位。用来获取当前位置

定位sdk

-(void)updateLocationData:(BMKUserLocation *)userLocation;

动态更新我的位置数据

定位sdk

BMKMapView

- (BMKOverlayView *)mapView:(BMKMapView *)mapView viewForOverlay:(id<BMKOverlay>)overlay;

生成与地理围栏对应的overlay

地图sdk

核心代码

1.配置地理围栏管理类

Objective-C

_geofenceManager = [[BMKGeoFenceManager alloc] init];
/// 指定定位是否会被系统自动暂停。默认为NO。
_geofenceManager.pausesLocationUpdatesAutomatically = NO;
/// 是否允许后台定位。
_geofenceManager.allowsBackgroundLocationUpdates = YES;
/// 需要进行通知的行为 
_geofenceManager.activeAction = BMKGeoFenceActiveActionInside;
/// 代理
geofenceManager.delegate = self;
            
                

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2.添加地理围栏

Objective-C

//添加圆形围栏
[self.geofenceManager addCircleRegionForMonitoringWithCenter:@”圆形围栏中心点坐标” radius:@”圆形围栏半径” coorType:BMKLocationCoordinateTypeBMK09LL customID:@”自定义业务”];
// 添加多边形围栏
[self.geofenceManager addPolygonRegionForMonitoringWithCoordinates:@”多边形围栏边界坐标点数组，至少三个” count:@”坐标点数量” coorType:BMKLocationCoordinateTypeBMK09LL customID: @”自定义业务”];

注意：添加围栏的同时可添加和围栏形状相同的overlay让围栏可见，具体实现参照demo或地图overlay文档
                    
                

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3.实现地理围栏状态改变回调代理方法

Objective-C

- (void)BMKGeoFenceManager:(BMKGeoFenceManager * _Nonnull)manager didGeoFencesStatusChangedForRegion:(BMKGeoFenceRegion * _Nullable)region customID:(NSString * _Nullable)customID error:(NSError * _Nullable)error {
    if (error) {
        NSLog(@"geofence error =%@", error);
        return;
    }
    
    

NSLog(@"geofence%@ status =%ld", region.customID, region.fenceStatus);


switch(region.fenceStatus) {
        case BMKGeoFenceRegionStatusInside:
            [self showMsg:@"地理围栏状态：进入地理围栏"];
            break;
        case BMKGeoFenceRegionStatusStayed:
            [self showMsg:@"地理围栏状态：停留在地理围栏"];
            break;
        case BMKGeoFenceRegionStatusOutside:
            [self showMsg:@"地理围栏状态：离开地理围栏"];
            break;
        default:
            [self showMsg:@"地理围栏状态：围栏状态未知"];
            break;
    }
}
                      
                

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4.移除地理围栏

Objective-C

// 移除所有围栏
[self.geofenceManager removeAllGeoFenceRegions];
                
                

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