Google maps 使用Google Directions API显示地点名称

我正在尝试向Google Directions API发出一个包含多个航路点的请求。到目前为止一切正常，但我遇到的主要问题是，当谷歌地图应用程序为用户打开时，用户只能看到坐标

  Future<void> launchGoogleMaps(BuildContext context) async {
    Position userLocation = await Geolocator().getLastKnownPosition(
      desiredAccuracy: LocationAccuracy.bestForNavigation,
    );

    String googleMapsAppUrl = 'comgooglemapsurl://?';

    if (customFirstPlace != null) {
      googleMapsAppUrl +=
          "saddr=${customFirstPlace.latitude},${customFirstPlace.longitude}";
    } else if (!shouldStartWithUserLocation) {
      googleMapsAppUrl +=
          "saddr=${circuitCompanies[0].lat},${circuitCompanies[0].lng}";
    }

    String googleMapsWebUrl = "http://www.google.com/maps/dir";
    googleMapsWebUrl += "/${userLocation.latitude},${userLocation.longitude}";

    circuitCompanies.forEach((CompanyModel element) {
      int elementIndex = circuitCompanies.indexOf(element);
      // If it's the first element, the "direction"
      // parameter will be added to specify the beginning.
      // If not, the "to" parameter will be added
      // to specify a waypoint (a stop).

      if (elementIndex == 0) {
        googleMapsAppUrl += "&daddr=${element.lat},${element.lng}";
      } else {
        googleMapsAppUrl += "+to:${element.lat},${element.lng}";
      }

      googleMapsWebUrl += "/${element.lat},${element.lng}";
    });

    if (await canLaunch("comgooglemaps://")) {
      print('launching com googleUrl $googleMapsAppUrl');
      await launch(googleMapsAppUrl);
    } else if (await canLaunch(googleMapsWebUrl)) {
      print('launching web url $googleMapsWebUrl');
      await launch(googleMapsWebUrl);
    } else {
      showDialog(
        builder: (_) {
          return SingleActionDialog(
            title: "Erreur",
            onConfirmTap: () => Navigator.pop(context),
            bodyText: "Un erreur s'est produit.",
            confirmText: "Fermer",
          );
        },
        context: context,
      );
    }
  }

 Future<String> getEncodedCompanyAddress(CompanyModel model)  async {
String _encodedAddress = "";

model.address = await CompanyAddressDAO().getCompanyAddress(
  model.id,
);

_encodedAddress = model.details.title +
    ", " +
    model.address.street +
    ", " +
    model.address.city +
    ", " +
    model.address.state;

_encodedAddress = Uri.encodeFull(_encodedAddress);

_encodedAddress = _encodedAddress.replaceAll("%20", "+");

return _encodedAddress;

我正在开发一个颤振应用程序，但可能所有设备和平台的请求都是相同的，因此它不是真正针对颤振的

我想显示路线上公司/地点的名称

它可以是web请求，也可以是使用Google Maps移动应用程序URL方案的请求

这就是我目前正在做的，坐标

  Future<void> launchGoogleMaps(BuildContext context) async {
    Position userLocation = await Geolocator().getLastKnownPosition(
      desiredAccuracy: LocationAccuracy.bestForNavigation,
    );

    String googleMapsAppUrl = 'comgooglemapsurl://?';

    if (customFirstPlace != null) {
      googleMapsAppUrl +=
          "saddr=${customFirstPlace.latitude},${customFirstPlace.longitude}";
    } else if (!shouldStartWithUserLocation) {
      googleMapsAppUrl +=
          "saddr=${circuitCompanies[0].lat},${circuitCompanies[0].lng}";
    }

    String googleMapsWebUrl = "http://www.google.com/maps/dir";
    googleMapsWebUrl += "/${userLocation.latitude},${userLocation.longitude}";

    circuitCompanies.forEach((CompanyModel element) {
      int elementIndex = circuitCompanies.indexOf(element);
      // If it's the first element, the "direction"
      // parameter will be added to specify the beginning.
      // If not, the "to" parameter will be added
      // to specify a waypoint (a stop).

      if (elementIndex == 0) {
        googleMapsAppUrl += "&daddr=${element.lat},${element.lng}";
      } else {
        googleMapsAppUrl += "+to:${element.lat},${element.lng}";
      }

      googleMapsWebUrl += "/${element.lat},${element.lng}";
    });

    if (await canLaunch("comgooglemaps://")) {
      print('launching com googleUrl $googleMapsAppUrl');
      await launch(googleMapsAppUrl);
    } else if (await canLaunch(googleMapsWebUrl)) {
      print('launching web url $googleMapsWebUrl');
      await launch(googleMapsWebUrl);
    } else {
      showDialog(
        builder: (_) {
          return SingleActionDialog(
            title: "Erreur",
            onConfirmTap: () => Navigator.pop(context),
            bodyText: "Un erreur s'est produit.",
            confirmText: "Fermer",
          );
        },
        context: context,
      );
    }
  }

 Future<String> getEncodedCompanyAddress(CompanyModel model)  async {
String _encodedAddress = "";

model.address = await CompanyAddressDAO().getCompanyAddress(
  model.id,
);

_encodedAddress = model.details.title +
    ", " +
    model.address.street +
    ", " +
    model.address.city +
    ", " +
    model.address.state;

_encodedAddress = Uri.encodeFull(_encodedAddress);

_encodedAddress = _encodedAddress.replaceAll("%20", "+");

return _encodedAddress;

未来启动GoogleMaps（BuildContext上下文）异步{
Position userLocation=等待地理定位器（）。getLastKnownPosition(
期望精度：定位精度。最佳导航，
);
字符串googleMapsAppUrl='comgooglemapsurl://？'；
if（customFirstPlace！=null）{
谷歌地图+=
“SADD=${customFirstPlace.latitude}，${customFirstPlace.latitude}”；
}否则如果（！shouldStartWithUserLocation）{
谷歌地图+=
“SADD=${CircuitCompanys[0].lat}，${CircuitCompanys[0].lng}”；
}
字符串googleMapsWebUrl=”http://www.google.com/maps/dir";
googleMapsWebUrl+=“/${userLocation.latitude}，${userLocation.latitude}”；
circuitCompanys.forEach（（CompanyModel元素）{
int-elementIndex=circuitCompanys.indexOf（元素）；
//如果是第一个元素，“方向”
//将添加参数以指定开头。
//否则，将添加“to”参数
//指定航路点（站点）。
if（elementIndex==0）{
googleMapsAppUrl+=“&daddr=${element.lat}，${element.lng}”；
}否则{
googleMapsAppUrl+=“+收件人：${element.lat}，${element.lng}”；
}
googleMapsWebUrl+=“/${element.lat}，${element.lng}”；
});
如果（等待canLaunch（“谷歌地图：/”）{
打印（“启动com googleUrl$googleMapsAppUrl”）；
等待发布（谷歌地图网址）；
}否则（等待canLaunch（谷歌地图搜索））{
打印（“启动web url$googleMapsWebUrl”）；
等待发射（谷歌地图）；
}否则{
显示对话框(
建筑商：（）{
返回SingleActionDialog(
标题：“Erreur”，
onConfirmTap:（）=>Navigator.pop（上下文），
正文：“这是一个错误的产品。”，
确认文本：“费尔默”，
);
},
上下文：上下文，
);
}
}

我如何用用户将要去的地方的名称来显示适当的路线，而不是只显示坐标？我也有确切的地址

---

谢谢

我设法解决了这个问题。我使用了谷歌地图API提供的web URL

我做了一个函数，它按照谷歌地图标准返回地点的地址，而不是仅仅传递坐标

  Future<void> launchGoogleMaps(BuildContext context) async {
    Position userLocation = await Geolocator().getLastKnownPosition(
      desiredAccuracy: LocationAccuracy.bestForNavigation,
    );

    String googleMapsAppUrl = 'comgooglemapsurl://?';

    if (customFirstPlace != null) {
      googleMapsAppUrl +=
          "saddr=${customFirstPlace.latitude},${customFirstPlace.longitude}";
    } else if (!shouldStartWithUserLocation) {
      googleMapsAppUrl +=
          "saddr=${circuitCompanies[0].lat},${circuitCompanies[0].lng}";
    }

    String googleMapsWebUrl = "http://www.google.com/maps/dir";
    googleMapsWebUrl += "/${userLocation.latitude},${userLocation.longitude}";

    circuitCompanies.forEach((CompanyModel element) {
      int elementIndex = circuitCompanies.indexOf(element);
      // If it's the first element, the "direction"
      // parameter will be added to specify the beginning.
      // If not, the "to" parameter will be added
      // to specify a waypoint (a stop).

      if (elementIndex == 0) {
        googleMapsAppUrl += "&daddr=${element.lat},${element.lng}";
      } else {
        googleMapsAppUrl += "+to:${element.lat},${element.lng}";
      }

      googleMapsWebUrl += "/${element.lat},${element.lng}";
    });

    if (await canLaunch("comgooglemaps://")) {
      print('launching com googleUrl $googleMapsAppUrl');
      await launch(googleMapsAppUrl);
    } else if (await canLaunch(googleMapsWebUrl)) {
      print('launching web url $googleMapsWebUrl');
      await launch(googleMapsWebUrl);
    } else {
      showDialog(
        builder: (_) {
          return SingleActionDialog(
            title: "Erreur",
            onConfirmTap: () => Navigator.pop(context),
            bodyText: "Un erreur s'est produit.",
            confirmText: "Fermer",
          );
        },
        context: context,
      );
    }
  }

 Future<String> getEncodedCompanyAddress(CompanyModel model)  async {
String _encodedAddress = "";

model.address = await CompanyAddressDAO().getCompanyAddress(
  model.id,
);

_encodedAddress = model.details.title +
    ", " +
    model.address.street +
    ", " +
    model.address.city +
    ", " +
    model.address.state;

_encodedAddress = Uri.encodeFull(_encodedAddress);

_encodedAddress = _encodedAddress.replaceAll("%20", "+");

return _encodedAddress;

未来getEncodedCompanyAddress（公司模型）异步{
字符串_=”；
model.address=await companyaddress dao（）.getCompanyAddress(
model.id，
);
_encodedAddress=model.details.title+
", " +
街道+
", " +
模型、地址、城市+
", " +
model.address.state；
_encodedAddress=Uri.encodeFull（_encodedAddress）；
_encodedAddress=\u encodedAddress.replaceAll（“%20”和“+”）；
返回(u);；

}

现在，谷歌地图应用程序的方向显示了实际的地名，而不是只显示坐标