Hi..I have an issue here. everything is working fine except polyline is not drawing the street line between destination and origin. any update on this?

Thanks for your time cheers

Below error i am getting...

Creating a virtual display of size: [1080, 2210] may result in problems(https://github.com/flutter/flutter/issues/2897).It is larger than the device screen size: [1080, 2131]

In plugin example you show wayPoints: [ PolylineWayPoint(location: "location") ]);

In your PolylineWayPoints file your comment /// as a LatLng, as a google.maps.Place object

I want to pass LatLng to PolyLineWayPoint location. I tried to pass LatLng but it doesn't work. What is the way to pass LatLng there

Hello! I have a problem! The polyline is not displayed on the map. How to fix? Now polyline is displayed when i write coordinates by hands, but i think its must be automatically.

DEBUG CONDOLE last message: W/System (31776): A resource failed to call release.

when i try to add waypoints i get an error.

_TypeError (type 'MappedListIterable<PolylineWayPoint, String>' is not a subtype of type 'List<String>')

Can you show me an example of adding coordinates at waypoints. the examples you have given do not work correctly

I get this error on call of polylinePoints.getRouteBetweenCoordinates()

Exception has occurred.
_Exception (Exception: RangeError (index): Invalid value: Valid value range is empty: 0)

Using "getRouteBetweenCoordinates" method, it is possible to create a route with more than 2 points (origin and destination).

For do this in flutter_polyline_points I propose the following changes: in archive flutter_polyline_points.dart add the a new method getRouteFromCoordinates

/// Get the list of coordinates from two or more geographical positions /// Future getRouteFromCoordinates( String googleApiKey, PointLatLng origin, PointLatLng destination, List wayPoints, {TravelMode travelMode = TravelMode.driving, bool avoidHighways = false, bool avoidTolls = false, bool avoidFerries = true, bool optimizeWaypoints = false}) async { return await util.getRouteFromCoordinates( googleApiKey, origin, destination, travelMode, wayPoints, avoidHighways, avoidTolls, avoidFerries, optimizeWaypoints); }

in archive netwok_util.dart add the a new method getRouteFromCoordinates

Future getRouteFromCoordinates( String googleApiKey, PointLatLng origin, PointLatLng destination, TravelMode travelMode, List wayPoints, bool avoidHighways, bool avoidTolls, bool avoidFerries, bool optimizeWaypoints) async { String mode = travelMode.toString().replaceAll('TravelMode.', ''); PolylineResult result = PolylineResult(); var params = { "origin": "${origin.latitude},${origin.longitude}", "destination": "${destination.latitude},${destination.longitude}", "mode": mode, "avoidHighways": "$avoidHighways", "avoidFerries": "$avoidFerries", "avoidTolls": "$avoidTolls", "key": googleApiKey }; if (wayPoints.isNotEmpty) { List wayPointsArray = List(); wayPoints.forEach((element) { wayPointsArray.add(element.location); }); String wayPointsString = wayPointsArray.join('|'); if (optimizeWaypoints) { wayPointsString = 'optimize:true|$wayPointsString'; } params.addAll({"waypoints": wayPointsString}); } Uri uri = Uri.https("maps.googleapis.com", "maps/api/directions/json", params);

String url = uri.toString();
print('GOOGLE MAPS URL: ' + url);
var response = await http.get(url);
if (response?.statusCode == 200) {
  var parsedJson = json.decode(response.body);
  result.status = parsedJson["status"];
  if (parsedJson["status"]?.toLowerCase() == STATUS_OK &&
      parsedJson["routes"] != null &&
      parsedJson["routes"].isNotEmpty) {
    result.points = decodeEncodedPolyline(
        parsedJson["routes"][0]["overview_polyline"]["points"]);
  } else {
    result.errorMessage = parsedJson["error_message"];
  }
}
return result;

}

If i have permition, i create a new feature branch and commit this for you analyze.

It's breaking a lot and 0.13.0 is null safe....

Because no versions of flutter_polyline_points match >0.2.6 <0.3.0 and flutter_polyline_points 0.2.6 depends on http ^0.13.0-nullsafety.0, flutter_polyline_points ^0.2.6 requires http ^0.13.0-nullsafety.0.

I'm using google_maps_flutter: ^0.5.11+1 and flutter_polyline_points: ^0.1.0 plugin.

When i'm debugging internal libraries i'm getting following errors in response -> { "error_message" : "This IP, site or mobile application is not authorized to use this API key. Request received from IP address 2405:204:969c:11f6::24b9:a8a4, with empty referer", "routes" : [], "status" : "REQUEST_DENIED" }

My code is in this file-> Google_Map_Page.txt

double _originLatitude = 6.5212402, _originLongitude = 3.3679965; double _destLatitude = 6.849660, _destLongitude = 3.648190; when i try to change this line as is not working double _originLatitude = 27.6765179, _originLongitude = 85.3471198; double _destLatitude = 27.7097955, _destLongitude = 85.3264372;

decodePolyline works with this argument:

"clgiJchkmBi@QKgCF}@kBCPcG}B]L_IN[G{AD{@l@kAE}@NiA{@`Cq@~@iBpBKjL}Bx@PzBkCrLcBiDn@_BoBoD_CoEcAvAoCcLZc@[cBrAiBu@p@[{Ar@}AqAuGf@u@rDkBe@v@d@xCzCuEvA_CtBcDbD_Hh@jAgA|HyAtEsBtIgBrQ_DmEcAmDsC}K{CaYwAlAVpA"

but fails with this argument:

"_lgiJ_hkmBs@eEiB_@NsF`CR?qAeAUdALR{LyF|Bz@kJ_AnCkDnDi@lLoA\T~BqCbMwAeEb@qAoFaK}@bBgDiOlBoCs@~@a@kB|A{B`C`J|CjElCaUvFmWgAwAwIfQ{CjFe@iCb@{@}EtBkAuN{Aj@i@oDJD"

Both made with the Interactive Polyline Encoder Utility

The second case results in these error messages:

E/flutter (22218): [ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: RangeError (index): Invalid value: Not in inclusive range 0..154: 155
E/flutter (22218): #0      String.codeUnitAt (dart:core-patch/string_patch.dart:962:55)
E/flutter (22218): #1      NetworkUtil.decodeEncodedPolyline (package:flutter_polyline_points/src/network_util.dart:87:21)
E/flutter (22218): #2      PolylinePoints.decodePolyline (package:flutter_polyline_points/flutter_polyline_points.dart:47:17)
E/flutter (22218): #3      _MyHomePageState.initMap (package:ndskonst/main.dart:162:29)

It should be available in Google Directions API. We enable enable billing in google console not to just draw the lines. Please add the duration based on travelMode in the PolylineResult. Thank you in advance.

Yesterday I was able to use it, but today when I called for the 2nd time it returned the error [OVER_QUERY_LIMIT]. I make sure I only call getRouteBetweenCoferences() 1 time at a time. Statistics from my google API. what should I do to solve this problem?

I'm using this package with Google maps in my Flutter app I can draw a route between A and B points but between A and B can be alternate paths which I need to draw them on the map, if this package support alternative routes please share a guide how to implement that.

this is my code how to add alternate routes

  _addPolyLine() {
    PolylineId id = PolylineId("poly");
    Polyline polyline = Polyline(
        polylineId: id, color: Colors.red, points: polylineCoordinates);
    polylines[id] = polyline;
    setState(() {});
  }

  _getPolyline() async {
    PolylineResult result = await polylinePoints.getRouteBetweenCoordinates(
        googleAPiKey,
        PointLatLng(_originLatitude, _originLongitude),
        PointLatLng(_destLatitude, _destLongitude),
        travelMode: TravelMode.driving,
        wayPoints: [PolylineWayPoint(location: "Sabo, Yaba Lagos Nigeria")]);
    if (result.points.isNotEmpty) {
      result.points.forEach((PointLatLng point) {
        polylineCoordinates.add(LatLng(point.latitude, point.longitude));
      });
    }
    _addPolyLine();
  }

Thanks.

This is the response when there is no billing enabled.

{
   "error_message" : "You must enable Billing on the Google Cloud Project at https://console.cloud.google.com/project/_/billing/enable Learn more at https://developers.google.com/maps/gmp-get-started",
   "routes" : [],
   "status" : "REQUEST_DENIED"
}

I am using the flutter_polyline_points package to draw a route between multiple points on my GoogleMap widget (providing start point, end point, and multiple points in between).

The polylines are being drawn perfectly fine, and everything seems to work, except for the fact that the polylines are not "snapped" to the roads, and seem like just a line between each point. Please see this example:

[]1

I am getting the points for the polyline like this:

PolylineResult result = await polylinePoints.getRouteBetweenCoordinates(
      kGooglePlacesAPIKey,
      PointLatLng(
        startPoint.latitude,
        startPoint.longitude,
      ),
      PointLatLng(
        endPoint.latitude,
        endPoint.longitude,
      ),
      wayPoints: myAddresses.map((currAddress) {
        return PolylineWayPoint(
          location: '${currAddress.latitude},${currAddress.longitude}',
        );
      }).toList(),
    );

Does anyone know why it is occurring? Is there a way to solve it using this package?

Thank you