Android 高德地图驾车路线规划

public class AmapDetailActivity extends Activity implements RouteSearch.OnRouteSearchListener, AMap.OnMapClickListener, AMap.OnMarkerClickListener, AMap.OnInfoWindowClickListener, AMap.InfoWindowAdapter {
    private MapView mapView;
    private AMap aMap;
    String latitude;
    String longitude;
    String supplierLat;
    String supplierLog;
    private RouteSearch mRouteSearch;
    protected LatLonPoint mEndLatlng ;
    protected LatLonPoint mStartLatlng ;
    private DriveRouteResult mDriveRouteResult;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_detail_amap);
        mapView = (MapView) findViewById(R.id.map);
        mapView.onCreate(savedInstanceState);// 此方法必须重写
        ButterKnife.inject(this);
       //起点和终点的经纬度（测试的话随便弄两个经纬度进去）
         supplierLat = getIntent().getStringExtra("supplierLat");   

         supplierLog = getIntent().getStringExtra("supplierLng");     

         latitude = getIntent().getStringExtra("latitude");       

         longitude = getIntent().getStringExtra("longitude");     

          init();        

         
    setfromandtoMarker();

}

 private void setfromandtoMarker() {
        aMap.addMarker(new MarkerOptions()
                .position(AMapUtil.convertToLatLng(mStartLatlng))
                .icon(BitmapDescriptorFactory.fromResource(R.drawable.start)));
        aMap.addMarker(new MarkerOptions()
                .position(AMapUtil.convertToLatLng(mEndLatlng))
                .icon(BitmapDescriptorFactory.fromResource(R.drawable.end)));
    }



    /**
     * 初始化AMap对象
     */
    private void init() {
        if (aMap == null) {
            aMap = mapView.getMap();
        }
//        registerListener();
        mRouteSearch = new RouteSearch(this);
        mRouteSearch.setRouteSearchListener(this);
        mStartLatlng = new LatLonPoint(Double.valueOf(supplierLat), Double.valueOf(supplierLog));
        mEndLatlng = new LatLonPoint(Double.valueOf(latitude), Double.valueOf(longitude));
        final RouteSearch.FromAndTo fromAndTo = new RouteSearch.FromAndTo(
                mStartLatlng, mEndLatlng);
        RouteSearch.DriveRouteQuery query = new RouteSearch.DriveRouteQuery(fromAndTo, RouteSearch.DrivingDefault, null,
                null, "");// 第一个参数表示路径规划的起点和终点，第二个参数表示驾车模式，第三个参数表示途经点，第四个参数表示避让区域，第五个参数表示避让道路
        mRouteSearch.calculateDriveRouteAsyn(query);// 异步路径规划驾车模式查询
    }
    private void registerListener() {
        aMap.setOnMapClickListener(AmapDetailActivity.this);
        aMap.setOnMarkerClickListener(AmapDetailActivity.this);
        aMap.setOnInfoWindowClickListener(AmapDetailActivity.this);
        aMap.setInfoWindowAdapter(AmapDetailActivity.this);

    }

    /**
     * 方法必须重写
     */
    @Override
    public void onResume() {
        super.onResume();
        mapView.onResume();
    }

    /**
     * 方法必须重写
     */
    @Override
    public void onPause() {
        super.onPause();
        mapView.onPause();
    }

    /**
     * 方法必须重写
     */
    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mapView.onSaveInstanceState(outState);
    }

    /**
     * 方法必须重写
     */
    @Override
    protected void onDestroy() {
        super.onDestroy();
        mapView.onDestroy();
    }

    @Override
    protected void onClick(View v) {

    }

    @Override
    public void onBusRouteSearched(BusRouteResult busRouteResult, int i) {

    }

    @Override
    public void onDriveRouteSearched(DriveRouteResult driveRouteResult, int i) {
        aMap.clear();
        if (i == 1000) {
            if (driveRouteResult != null && driveRouteResult.getPaths() != null) {
                if (driveRouteResult.getPaths().size() > 0) {
                    mDriveRouteResult = driveRouteResult;
                    final DrivePath drivePath = mDriveRouteResult.getPaths()
                            .get(0);
                    DrivingRouteOverlay drivingRouteOverlay = new DrivingRouteOverlay(this, aMap, drivePath, driveRouteResult.getStartPos(),
                            driveRouteResult.getTargetPos());
                    drivingRouteOverlay.removeFromMap();
                    drivingRouteOverlay.setNodeIconVisibility(false);//隐藏转弯的节点
                    drivingRouteOverlay.addToMap();
                    drivingRouteOverlay.zoomToSpan();
                }
            }
        }
    }

    @Override
    public void onWalkRouteSearched(WalkRouteResult walkRouteResult, int i) {

    }

    @Override
    public void onMapClick(LatLng latLng) {

    }

    @Override
    public boolean onMarkerClick(Marker marker) {
        return false;
    }

    @Override
    public void onInfoWindowClick(Marker marker) {

    }

    @Override
    public View getInfoWindow(Marker marker) {
        return null;
    }

    @Override
    public View getInfoContents(Marker marker) {
        return null;
    }
}