Flutter地址获取插件flutter_address_from_latlng的使用

Flutter地址获取插件flutter_address_from_latlng的使用

插件简介

flutter_address_from_latlng 是一个用于根据经纬度获取地址信息的Flutter插件。它提供了多种方法来获取不同类型的地址，如详细的格式化地址、前提地址（Premise）、街道地址（Street）、路线地址（Route）等。

功能特性

• 获取最详细的格式化地址
• 获取前提地址（Premise）
• 获取街道地址（Street）
• 获取路线地址（Route）
• 获取更多类型的地址信息

开始使用

要在项目中使用 flutter_address_from_latlng，首先需要在 pubspec.yaml 文件中添加依赖：

dependencies:
  flutter:
    sdk: flutter
  # 添加 flutter_address_from_latlng 依赖
  flutter_address_from_latlng: ^最新版本

然后，在 Dart 文件中导入该插件：

import 'package:flutter_address_from_latlng/flutter_address_from_latlng.dart';

使用示例

以下是一个完整的示例代码，展示了如何使用 flutter_address_from_latlng 插件来获取不同类型的地址信息。为了简化示例，我们假设你已经有了 Google API Key，并且已经将其存储在一个变量 googleApiKey 中。

import 'package:flutter/material.dart';
import 'package:flutter_address_from_latlng/flutter_address_from_latlng.dart';

void main() async {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('flutter_address_from_latlng 示例'),
        ),
        body: AddressFetcher(),
      ),
    );
  }
}

class AddressFetcher extends StatefulWidget {
  [@override](/user/override)
  _AddressFetcherState createState() => _AddressFetcherState();
}

class _AddressFetcherState extends State<AddressFetcher> {
  String? formattedAddress;
  Address? premiseAddress;
  Address? streetAddress;
  Address? directionAddress;
  Address? establishmentAddress;
  Address? plusCodeAddress;
  Address? neighborhoodAddress;
  Address? administrativeArea1;
  Address? administrativeArea2;
  Address? administrativeArea3;
  Address? countryAddress;

  final double latitude = 37.4219983; // 示例纬度
  final double longitude = -122.084;  // 示例经度
  final String googleApiKey = 'YOUR_GOOGLE_API_KEY'; // 请替换为你的Google API Key

  Future<void> fetchAddresses() async {
    try {
      // 获取格式化地址
      formattedAddress = await FlutterAddressFromLatLng().getFormattedAddress(
        latitude: latitude,
        longitude: longitude,
        googleApiKey: googleApiKey,
      );

      // 获取前提地址（Premise）
      premiseAddress = await FlutterAddressFromLatLng().getPremiseAddress(
        latitude: latitude,
        longitude: longitude,
        googleApiKey: googleApiKey,
      );

      // 获取街道地址（Street）
      streetAddress = await FlutterAddressFromLatLng().getStreetAddress(
        latitude: latitude,
        longitude: longitude,
        googleApiKey: googleApiKey,
      );

      // 获取路线地址（Route）
      directionAddress = await FlutterAddressFromLatLng().getDirectionAddress(
        latitude: latitude,
        longitude: longitude,
        googleApiKey: googleApiKey,
      );

      // 获取机构地址（Establishment）
      establishmentAddress = await FlutterAddressFromLatLng().getEstablishmentAddress(
        latitude: latitude,
        longitude: longitude,
        googleApiKey: googleApiKey,
      );

      // 获取Plus Code地址
      plusCodeAddress = await FlutterAddressFromLatLng().getPlusCodeAddress(
        latitude: latitude,
        longitude: longitude,
        googleApiKey: googleApiKey,
      );

      // 获取邻里地址（Neighborhood）
      neighborhoodAddress = await FlutterAddressFromLatLng().getNeighborhoodAddress(
        latitude: latitude,
        longitude: longitude,
        googleApiKey: googleApiKey,
      );

      // 获取一级行政区划地址
      administrativeArea1 = await FlutterAddressFromLatLng().getAdministrativeAddress1(
        latitude: latitude,
        longitude: longitude,
        googleApiKey: googleApiKey,
      );

      // 获取二级行政区划地址
      administrativeArea2 = await FlutterAddressFromLatLng().getAdministrativeAddress2(
        latitude: latitude,
        longitude: longitude,
        googleApiKey: googleApiKey,
      );

      // 获取三级行政区划地址
      administrativeArea3 = await FlutterAddressFromLatLng().getAdministrativeAddress3(
        latitude: latitude,
        longitude: longitude,
        googleApiKey: googleApiKey,
      );

      // 获取国家地址
      countryAddress = await FlutterAddressFromLatLng().getCountryAddress(
        latitude: latitude,
        longitude: longitude,
        googleApiKey: googleApiKey,
      );

      setState(() {}); // 更新UI
    } catch (e) {
      print('Error fetching addresses: $e');
    }
  }

  [@override](/user/override)
  void initState() {
    super.initState();
    fetchAddresses(); // 在初始化时获取地址
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return ListView(
      padding: EdgeInsets.all(16.0),
      children: [
        Text('格式化地址: $formattedAddress', style: TextStyle(fontSize: 16)),
        SizedBox(height: 8),
        Text('前提地址: ${premiseAddress?.address ?? 'N/A'}', style: TextStyle(fontSize: 16)),
        SizedBox(height: 8),
        Text('街道地址: ${streetAddress?.address ?? 'N/A'}', style: TextStyle(fontSize: 16)),
        SizedBox(height: 8),
        Text('路线地址: ${directionAddress?.address ?? 'N/A'}', style: TextStyle(fontSize: 16)),
        SizedBox(height: 8),
        Text('机构地址: ${establishmentAddress?.address ?? 'N/A'}', style: TextStyle(fontSize: 16)),
        SizedBox(height: 8),
        Text('Plus Code地址: ${plusCodeAddress?.address ?? 'N/A'}', style: TextStyle(fontSize: 16)),
        SizedBox(height: 8),
        Text('邻里地址: ${neighborhoodAddress?.address ?? 'N/A'}', style: TextStyle(fontSize: 16)),
        SizedBox(height: 8),
        Text('一级行政区划地址: ${administrativeArea1?.address ?? 'N/A'}', style: TextStyle(fontSize: 16)),
        SizedBox(height: 8),
        Text('二级行政区划地址: ${administrativeArea2?.address ?? 'N/A'}', style: TextStyle(fontSize: 16)),
        SizedBox(height: 8),
        Text('三级行政区划地址: ${administrativeArea3?.address ?? 'N/A'}', style: TextStyle(fontSize: 16)),
        SizedBox(height: 8),
        Text('国家地址: ${countryAddress?.address ?? 'N/A'}', style: TextStyle(fontSize: 16)),
      ],
    );
  }
}