title: how to get real direction steps using Flutter? (draw real route)
body: <p>I'm working with taxi app. Is it possible to draw real route on real road using flutter?</p>
  
  <p>I used this way: <a href="https://developers.google.com/maps/documentation/directions/intro#ExampleRequests" rel="nofollow noreferrer">https://developers.google.com/maps/documentation/directions/intro#ExampleRequests</a></p>
  
  <pre><code>  getDirectionSteps(double destinationLat, double destinationLng) {
      network
          .get("origin=" +
              location.latitude.toString() +
              "," +
              location.longitude.toString() +
              "&amp;destination=" +
              destinationLat.toString() +
              "," +
              destinationLng.toString() +
              "&amp;key=api_key")
          .then((dynamic res) {
        List&lt;Steps&gt; rr = res;
        print(res.toString());
  
        ccc = new List();
        for (final i in rr) {
          ccc.add(i.startLocation);
          ccc.add(i.endLocation);
        }
  
        mapView.onMapReady.listen((_) {
          mapView.setMarkers(getMarker(location.latitude,location.longitude,destinationLat,destinationLng));
          mapView.addPolyline(new Polyline("12", ccc, width: 15.0));
        });
        _screenListener.dismissLoader();
        showMap();
      }).catchError((Exception error) =&gt; _screenListener.dismissLoader());
    }
  </code></pre>
  
  <p>my output look like this: </p>
  
  <p><a href="https://i.stack.imgur.com/6VtZC.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6VtZC.jpg" alt="enter image description here"></a></p>
  
  <p>But I need like this: (draw destination route on real road)</p>
  
  <p><a href="https://i.stack.imgur.com/iD1hR.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iD1hR.jpg" alt="enter image description here"></a></p>