Java コードを使用して、Baidu Maps 上でルート計画をドラッグして、洞察力に富んだ運転ルートを描画するにはどうすればよいですか?

import com.baidu.mapapi.SDKInitializer;
import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.SupportMapFragment;
import com.baidu.mapapi.model.LatLng;
import com.baidu.mapapi.overlayutil.DrivingRouteOverlay;
import com.baidu.mapapi.search.core.RouteLine;
import com.baidu.mapapi.search.core.SearchResult;
import com.baidu.mapapi.search.route.DrivingRouteLine;
import com.baidu.mapapi.search.route.DrivingRoutePlanOption;
import com.baidu.mapapi.search.route.DrivingRouteResult;
import com.baidu.mapapi.search.route.OnGetRoutePlanResultListener;
import com.baidu.mapapi.search.route.RoutePlanSearch;
import com.baidu.mapapi.search.route.RoutePlanSearchOption;

android:layout_width="match_parent"
android:layout_height="match_parent">

<fragment
    android:id="@+id/map"
    android:name="com.baidu.mapapi.map.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

SDKInitializer.initialize(getApplicationContext());
BaiduMap mBaiduMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getBaiduMap();

RoutePlanSearch mRoutePlanSearch = RoutePlanSearch.newInstance();
mRoutePlanSearch.setOnGetRoutePlanResultListener(new OnGetRoutePlanResultListener() {
    @Override
    public void onGetDrivingRouteResult(DrivingRouteResult result) {
        if (result == null || result.error != SearchResult.ERRORNO.NO_ERROR) {
            // 路线规划失败
        } else if (result.error == SearchResult.ERRORNO.AMBIGUOUS_ROURE_ADDR) {
            // 路线规划起终点有歧义，需要解决
        } else if (result.error == SearchResult.ERRORNO.NO_ERROR) {
            // 路线规划成功
            DrivingRouteLine drivingRouteLine = result.getRouteLines().get(0);
            DrivingRouteOverlay overlay = new DrivingRouteOverlay(mBaiduMap);
            overlay.setData(drivingRouteLine);
            overlay.addToMap();
            overlay.zoomToSpan();

        }
    }

    @Override
    public void onGetTransitRouteResult(TransitRouteResult transitRouteResult) {}

    @Override
    public void onGetWalkingRouteResult(WalkingRouteResult walkingRouteResult) {}
});

mBaiduMap.setOnMapStatusChangeListener(new BaiduMap.OnMapStatusChangeListener() {
    @Override
    public void onMapStatusChangeStart(MapStatus mapStatus) {}

    @Override
    public void onMapStatusChange(MapStatus mapStatus) {}

    @Override
    public void onMapStatusChangeFinish(MapStatus mapStatus) {
        LatLng startPoint = new LatLng(mapStatus.target.latitude, mapStatus.target.longitude);
        LatLng endPoint = new LatLng(【目的地纬度】, 【目的地经度】);

        PlanNode stNode = PlanNode.withLocation(startPoint);
        PlanNode enNode = PlanNode.withLocation(endPoint);
        DrivingRoutePlanOption option = new DrivingRoutePlanOption().from(stNode).to(enNode);
        mRoutePlanSearch.drivingSearch(option);
    }
});