当我在谷歌地图上标记时如何获取地址的所有详细信息。然后它将在颤动中填充文本框

Posted 2023-03-28

【中文标题】当我在谷歌地图上标记时如何获取地址的所有详细信息。然后它将在颤动中填充文本框

【英文标题】：How to get all detail of address when i am put mark on google map. and then it will fill up in text box in flutter

【发布时间】：2020-01-15 06:32:33

【问题描述】：

我想在地图上放置一个标记，当我放置标记时，它会获取该地址并填充到文本框中。

就像我在这张图片中提到的那样，当我放置一个标记然后单击显示地址时，它将采用该地址并填充到文本框中。希望你明白这个问题。如果有任何疑问，请告诉我。我需要帮助请帮助我。因为我非常陷入这个问题。

这是谷歌地图的一些代码。

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:tudo/src/styles/colors.dart';
import 'package:tudo/src/utils/navigation_helper.dart';
import 'package:tudo/src/widgets/google_map.dart';

const kGoogleApiKey = "API_KEY";

class BspAddressmapscreen extends StatefulWidget 
  BspAddressmapscreen(Key key) : super(key: key);

  @override
  _BspAddressmapscreenState createState() => _BspAddressmapscreenState();


class _BspAddressmapscreenState extends State<BspAddressmapscreen> 
  final homeScaffoldKey = GlobalKey<ScaffoldState>();
  Completer<GoogleMapController> _controller = Completer();
  @override
  void initState() 
    super.initState();
  

  double zoomVal = 5.0;
  @override
  Widget build(BuildContext context) 
    return new Scaffold(
      appBar: AppBar(
        leading: IconButton(
            icon: Icon(Icons.arrow_back_ios),
            onPressed: () 
              NavigationHelper.navigatetoBack(context);
            ),
        centerTitle: true,
        title: Text("Business Address Detail"),
        actions: <Widget>[
          IconButton(
            icon: Icon(Icons.search),
            onPressed: () ,
          ),
        ],
      ),
      bottomNavigationBar: Container(
        color: Colors.transparent,
        height: 56,
        child: Row(
          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
          children: <Widget>[
            new FlatButton.icon(
              icon: Icon(Icons.arrow_back_ios),
              label: Text('Show Address'),
              textColor: Colors.white,
              shape: RoundedRectangleBorder(
                borderRadius: BorderRadius.circular(7),
              ),
              onPressed: () async 
                Navigator.push(
                    context,
                    MaterialPageRoute(
                        builder: (context) => BspAddressmapscreen()));
              ,
            ),
          ],
        ),
      ),
      body: Container(
        height: double.infinity,
        width: double.infinity,
        child: Stack(
          children: <Widget>[
            _searchbar(),
            _buildGoogleMap(context),
            _zoomminusfunction(),
            _zoomplusfunction(),
          ],
        ),
      ),
    );
  

  Widget _zoomminusfunction() 
    return Align(
      alignment: Alignment.topLeft,
      child: IconButton(
          icon: Icon(FontAwesomeIcons.searchMinus, color: Color(0xff008080)),
          onPressed: () 
            zoomVal--;
            _minus(zoomVal);
          ),
    );
  

  Widget _zoomplusfunction() 
    return Align(
      alignment: Alignment.topRight,
      child: IconButton(
          icon: Icon(FontAwesomeIcons.searchPlus, color: Color(0xff008080)),
          onPressed: () 
            zoomVal++;
            _plus(zoomVal);
          ),
    );
  

  Future<void> _minus(double zoomVal) async 
    final GoogleMapController controller = await _controller.future;
    controller.animateCamera(CameraUpdate.newCameraPosition(
        CameraPosition(target: LatLng(40.712776, -74.005974), zoom: zoomVal)));
  

  Future<void> _plus(double zoomVal) async 
    final GoogleMapController controller = await _controller.future;
    controller.animateCamera(CameraUpdate.newCameraPosition(
        CameraPosition(target: LatLng(40.712776, -74.005974), zoom: zoomVal)));
  

  Widget _buildGoogleMap(BuildContext context) 
    return Container(
      height: MediaQuery.of(context).size.height,
      width: MediaQuery.of(context).size.width,
      child: GoogleMap(
        mapType: MapType.normal,
        initialCameraPosition:
            CameraPosition(target: LatLng(40.712776, -74.005974), zoom: 12),
        onMapCreated: (GoogleMapController controller) 
          _controller.complete(controller);
        ,
      ),
    );
  

  Widget _searchbar() 
    return Positioned(
      top: 50.0,
      right: 15.0,
      left: 15.0,
      child: Container(
        height: 50.0,
        width: double.infinity,
        decoration: BoxDecoration(
            borderRadius: BorderRadius.circular(10.0), color: Colors.white),
        child: TextField(
          decoration: InputDecoration(
              hintText: 'Enter Address',
              border: InputBorder.none,
              contentPadding: EdgeInsets.only(left: 15.0, top: 15.0),
              suffixIcon: IconButton(
                  icon: Icon(Icons.search),
                  //onPressed: searchandNavigate,
                  onPressed: () ,
                  iconSize: 30.0)),
          onChanged: (val) 
            setState(() 
              // searchAddr = val;
            );
          ,
        ),
      ),
    );
  

【参考方案1】：

使用下面的代码绘制标记并在按钮单击时获取地址，也可以使用geocoder 从 latlng 获取地址

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:geocoder/geocoder.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';

const kGoogleApiKey = "API_KEY";

class BspAddressmapscreen extends StatefulWidget 
  BspAddressmapscreen(Key key) : super(key: key);

  @override
  _BspAddressmapscreenState createState() => _BspAddressmapscreenState();


class _BspAddressmapscreenState extends State<BspAddressmapscreen> 
  final homeScaffoldKey = GlobalKey<ScaffoldState>();
  Completer<GoogleMapController> _controller = Completer();

  @override
  void initState() 
    super.initState();
  

  double zoomVal = 5.0;

  @override
  Widget build(BuildContext context) 
    return new Scaffold(
      appBar: AppBar(
        leading: IconButton(
        icon: Icon(Icons.arrow_back_ios),
        onPressed: () 
          /*NavigationHelper.navigatetoBack(context);*/
        ),
    centerTitle: true,
    title: Text("Business Address Detail"),
    actions: <Widget>[
      IconButton(
        icon: Icon(Icons.search),
        onPressed: () ,
      ),
    ],
  ),
  bottomNavigationBar: Container(
    color: Colors.transparent,
    height: 56,
    child: Row(
      mainAxisAlignment: MainAxisAlignment.spaceEvenly,
      children: <Widget>[
        new FlatButton.icon(
          icon: Icon(Icons.arrow_back_ios),
          label: Text('Show Address'),
          textColor: Colors.blue,
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(7),
          ),
          onPressed: () 
            getUserLocation();
          ,
        ),
      ],
    ),
  ),
  body: Container(
    height: double.infinity,
    width: double.infinity,
    child: Stack(
      children: <Widget>[
        _searchbar(),
        _buildGoogleMap(context),
        _zoomminusfunction(),
        _zoomplusfunction(),
      ],
    ),
  ),
    );
  

  getUserLocation() async 
    markers.values.forEach((value) async 
  print(value.position);
  // From coordinates
  final coordinates =
      new Coordinates(value.position.latitude, value.position.longitude);
  var addresses = await Geocoder.google(kGoogleApiKey)
      .findAddressesFromCoordinates(coordinates);

  print("Address: $addresses.first.featureName");
    );
  

  Widget _zoomminusfunction() 
    return Align(
      alignment: Alignment.topLeft,
      child: IconButton(
      icon: Icon(Icons.remove, color: Color(0xff008080)),
      onPressed: () 
        zoomVal--;
        _minus(zoomVal);
      ),
    );
  

  Widget _zoomplusfunction() 
    return Align(
      alignment: Alignment.topRight,
      child: IconButton(
      icon: Icon(Icons.add, color: Color(0xff008080)),
      onPressed: () 
        zoomVal++;
        _plus(zoomVal);
      ),
    );
  

  Future<void> _minus(double zoomVal) async 
final GoogleMapController controller = await _controller.future;
    controller.animateCamera(CameraUpdate.newCameraPosition(
    CameraPosition(target: LatLng(40.712776, -74.005974), zoom: zoomVal)));
  

  Future<void> _plus(double zoomVal) async 
    final GoogleMapController controller = await _controller.future;
    controller.animateCamera(CameraUpdate.newCameraPosition(
    CameraPosition(target: LatLng(40.712776, -74.005974), zoom: zoomVal)));
  

  Map<MarkerId, Marker> markers = <MarkerId, Marker>;

  Widget _buildGoogleMap(BuildContext context) 
    return Container(
  height: MediaQuery.of(context).size.height,
  width: MediaQuery.of(context).size.width,
  child: GoogleMap(
    mapType: MapType.normal,
    initialCameraPosition:
        CameraPosition(target: LatLng(40.712776, -74.005974), zoom: 12),
    onMapCreated: (GoogleMapController controller) 
      _controller.complete(controller);
    ,
    markers: Set<Marker>.of(markers.values),
    onLongPress: (LatLng latLng) 
      // creating a new MARKER
      final MarkerId markerId = MarkerId('4544');
      final Marker marker = Marker(
        markerId: markerId,
        position: latLng,
      );

      setState(() 
        markers.clear();
        // adding a new marker to map
        markers[markerId] = marker;
      );
    ,
  ),
    );
  

  Widget _searchbar() 
return Positioned(
  top: 50.0,
  right: 15.0,
  left: 15.0,
  child: Container(
    height: 50.0,
    width: double.infinity,
    decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(10.0), color: Colors.white),
    child: TextField(
      decoration: InputDecoration(
        hintText: 'Enter Address',
        border: InputBorder.none,
        contentPadding: EdgeInsets.only(left: 15.0, top: 15.0),
        suffixIcon: IconButton(
          icon: Icon(Icons.search),
          //onPressed: searchandNavigate,
          onPressed: () ,
          iconSize: 30.0,
        ),
      ),
      onChanged: (val) 
        setState(() 
          // searchAddr = val;
        );
      ,
    ),
  ),
    );
 

【讨论】：

感谢您的回答，但我收到有关依赖性的错误。它说手动解决您的依赖关系。