/**
* 创建圆形服务围栏
*/
private void createFence() {
    // 请求标识
    int tag = 3;
    // 轨迹服务ID
    long serviceId = 0123443l;
    // 围栏名称
    String fenceName = "server_circle";
    // 监控对象 "#allentity" 为监控全部entity的特殊字符
    String monitoredPerson = "#allentity";
    // 围栏圆心
    com.baidu.trace.model.LatLng center = new com.baidu.trace.model.LatLng(39.9151190000, 116.4039630000);
    // 围栏半径（单位 : 米）
    double radius = 2000;
    // 去噪精度
    int denoise = 200;
    // 坐标类型
    CoordType coordType = CoordType.bd09ll;

    // 创建服务端圆形围栏请求实例
    CreateFenceRequest request = CreateFenceRequest.buildServerCircleRequest(tag, serviceId, fenceName, monitoredPerson, center, radius, denoise, coordType);
    // 创建围栏
    trackApp.mClient.createFence(request, fenceListener);
                    

OnFenceListener fenceListener = new OnFenceListener() {
@Override
public void onCreateFenceCallback(CreateFenceResponse response) {
    // 创建围栏回调接口
}

@Override
public void onUpdateFenceCallback(UpdateFenceResponse response) {
    // 更新围栏回调接口
}

@Override
public void onDeleteFenceCallback(DeleteFenceResponse response) {
    // 删除围栏回调处理
}

@Override
public void onFenceListCallback(FenceListResponse response) {
    // 查询围栏列表回调接口

}

@Override
public void onMonitoredStatusCallback(MonitoredStatusResponse response) {
    // 查询监控对象状态回调接口
}

@Override
public void onMonitoredStatusByLocationCallback(MonitoredStatusByLocationResponse response) {
    // 查询指定位置监控对象状态回调接口
}

@Override
public void onHistoryAlarmCallback(HistoryAlarmResponse response) {
    // 查询围栏历史报警信息回调接口
}

@Override
public void onAddMonitoredPersonCallback(AddMonitoredPersonResponse response) {
    // 添加服务端围栏需要监控的对象（轨迹entity）
}

@Override
public void onDeleteMonitoredPersonCallback(DeleteMonitoredPersonResponse response) {
    // 删除服务端围栏需要监控的对象（轨迹entity）
}

@Override
public void onListMonitoredPersonCallback(ListMonitoredPersonResponse response) {
    // 查询围栏监控的所有entity
}
};
}
                

traceListener = new OnTraceListener() {
    ......
    /**
     * 推送消息回调接口
     *
     * @param messageType 状态码
     * @param pushMessage 消息
     *                  
     *                  0x01：配置下发
     *                  0x02：语音消息
     *                  0x03：服务端围栏报警消息
     *                  0x04：本地围栏报警消息
     *                  0x05~0x40：系统预留
     *                  0x41~0xFF：开发者自定义
     */
    @Override
    public void onPushCallback(byte messageType, PushMessage pushMessage) {
        if (messageType < 0x03 || messageType > 0x04) {
            viewUtil.showToast(TracingActivity.this, pushMessage.getMessage());
            return;
        }
        FenceAlarmPushInfo alarmPushInfo = pushMessage.getFenceAlarmPushInfo();
        if (null == alarmPushInfo) {
            viewUtil.showToast(TracingActivity.this,
                    String.format("onPushCallback, messageType:%d, messageContent:%s ", messageType,
                            pushMessage));
            return;
        }
        StringBuffer alarmInfo = new StringBuffer();
        alarmInfo.append("您于")
                .append(CommonUtil.getHMS(alarmPushInfo.getCurrentPoint().getLocTime() * 1000))
                .append(alarmPushInfo.getMonitoredAction() == MonitoredAction.enter ? "进入" : "离开")
                .append(messageType == 0x03 ? "云端" : "本地")
                .append("围栏：").append(alarmPushInfo.getFenceName());

        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN) {
            Notification notification = new Notification.Builder(trackApp)
                    .setContentTitle(getResources().getString(R.string.alarm_push_title))
                    .setContentText(alarmInfo.toString())
                    .setSmallIcon(R.mipmap.icon_app)
                    .setWhen(System.currentTimeMillis()).build();
            notificationManager.notify(notifyId++, notification);
        }
    }

};