So rufen Sie die Amap-API über Java-Code auf, um die Geofence-Alarmfunktion zu implementieren

import com.amap.api.fence.*;
import com.amap.api.fence.model.*;

PointFence.Point point = new PointFence.Point(116.480983, 39.989628);

PointFence fence = new PointFence(point, 100);

public class MyFenceListener implements OnFenceListener {

    public void onCreateFenceCallback(CreateFenceResult createFenceResult, String s) {
        // 围栏创建完成后的回调，可以在这里处理围栏创建成功或失败的情况
    }

    public void onUpdateFenceCallback(UpdateFenceResult updateFenceResult, String s) {
        // 围栏更新完成后的回调，可以在这里处理围栏更新成功或失败的情况
    }

    public void onDeleteFenceCallback(DeleteFenceResult deleteFenceResult, String s) {
        // 围栏删除完成后的回调，可以在这里处理围栏删除成功或失败的情况
    }

    public void onStatusChanged(LocationStatusInfo locationStatusInfo, List<GeoFence> list) {
        // 用户位置状态发生变化时的回调，可以在这里处理用户进入或离开围栏的情况
        for (GeoFence fence : list) {
            // 获取围栏的名称和状态
            String fenceName = fence.getFenceName();
            int fenceStatus = fence.getStatus();
            if (fenceStatus == GeoFence.STATUS_IN) {
                // 用户进入围栏
                System.out.println("用户进入围栏：" + fenceName);
            } else if (fenceStatus == GeoFence.STATUS_OUT) {
                // 用户离开围栏
                System.out.println("用户离开围栏：" + fenceName);
            }
        }
    }
}

GeoFenceClient fenceClient = new GeoFenceClient(context);
fenceClient.setActivateAction(GeoFenceClient.GEOFENCE_IN | GeoFenceClient.GEOFENCE_OUT);
fenceClient.createPendingIntent("com.example.myfence.action.GEOFENCE");
fenceClient.setOnTriggerListener(new MyFenceListener());

fenceClient.addGeoFence(fence);

fenceClient.start();

import com.amap.api.fence.*;
import com.amap.api.fence.model.*;

public class Main {

    public static void main(String[] args) {
        // 创建一个位置点
        PointFence.Point point = new PointFence.Point(116.480983, 39.989628);

        // 创建一个地理围栏对象
        PointFence fence = new PointFence(point, 100);

        // 创建一个地理围栏告警回调
        MyFenceListener fenceListener = new MyFenceListener();

        // 创建一个地理围栏客户端
        GeoFenceClient fenceClient = new GeoFenceClient(context);
        fenceClient.setActivateAction(GeoFenceClient.GEOFENCE_IN | GeoFenceClient.GEOFENCE_OUT);
        fenceClient.createPendingIntent("com.example.myfence.action.GEOFENCE");
        fenceClient.setOnTriggerListener(fenceListener);

        // 将地理围栏添加到地图上
        fenceClient.addGeoFence(fence);

        // 启动地理围栏服务
        fenceClient.start();
    }
}