Flutter机场信息获取插件airport的使用
Flutter机场信息获取插件airport的使用
插件介绍
airport
是一个用于查询全球机场信息的 Flutter 包。通过此插件,您可以轻松获取机场的相关详细信息。
使用方法
1. 添加依赖
在您的 pubspec.yaml
文件中添加以下依赖:
dependencies:
airport: ^版本号
然后运行以下命令以安装依赖:
flutter pub get
2. 导入插件
在需要使用的 Dart 文件中导入 airport
包:
import 'package:airport/airports.dart';
3. 获取机场信息
使用 Airports.getAirport()
方法根据 ICAO 或 IATA 编码获取机场信息。以下是一个完整的示例代码:
import 'package:flutter/material.dart';
import 'package:airport/airports.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: AirportInfoPage(),
);
}
}
class AirportInfoPage extends StatefulWidget {
@override
_AirportInfoPageState createState() => _AirportInfoPageState();
}
class _AirportInfoPageState extends State<AirportInfoPage> {
String airportCode = "SBSP"; // 示例机场代码(圣保罗瓜鲁斯国际机场)
Airport? airportData;
Future<void> fetchAirportData() async {
try {
airportData = await Airports.getAirport(airportCode);
if (airportData != null) {
print("国家: ${airportData!.country}");
print("城市: ${airportData!.city}");
print("机场名称: ${airportData!.name}");
print("海拔高度: ${airportData!.elevation} 米");
print("ICAO代码: ${airportData!.icao}");
print("纬度: ${airportData!.lat}");
print("经度: ${airportData!.lon}");
print("州/省: ${airportData!.state}");
} else {
print("未找到机场信息");
}
} catch (e) {
print("发生错误: $e");
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("机场信息获取"),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
ElevatedButton(
onPressed: fetchAirportData,
child: Text("获取机场信息"),
),
SizedBox(height: 20),
if (airportData != null)
Text(
"机场名称: ${airportData!.name}",
style: TextStyle(fontSize: 18),
),
],
),
),
);
}
}
示例代码说明
以下是一个完整的示例代码,演示如何使用 airport
插件获取机场信息并展示到界面中:
import 'package:flutter/material.dart';
import 'package:airport/airports.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: AirportInfoPage(),
);
}
}
class AirportInfoPage extends StatefulWidget {
@override
_AirportInfoPageState createState() => _AirportInfoPageState();
}
class _AirportInfoPageState extends State<AirportInfoPage> {
String airportCode = "SBSP"; // 示例机场代码(圣保罗瓜鲁斯国际机场)
Airport? airportData;
Future<void> fetchAirportData() async {
try {
airportData = await Airports.getAirport(airportCode);
if (airportData != null) {
print("国家: ${airportData!.country}");
print("城市: ${airportData!.city}");
print("机场名称: ${airportData!.name}");
print("海拔高度: ${airportData!.elevation} 米");
print("ICAO代码: ${airportData!.icao}");
print("纬度: ${airportData!.lat}");
print("经度: ${airportData!.lon}");
print("州/省: ${airportData!.state}");
} else {
print("未找到机场信息");
}
} catch (e) {
print("发生错误: $e");
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("机场信息获取"),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
ElevatedButton(
onPressed: fetchAirportData,
child: Text("获取机场信息"),
),
SizedBox(height: 20),
if (airportData != null)
Text(
"机场名称: ${airportData!.name}",
style: TextStyle(fontSize: 18),
),
],
),
),
);
}
}
输出示例
当您点击按钮时,程序将获取机场信息并打印到控制台。例如,对于圣保罗瓜鲁斯国际机场 (SBSP
),输出可能如下:
国家: Brazil
城市: São Paulo
机场名称: São Paulo-Guarulhos International Airport
海拔高度: 760 米
ICAO代码: SBSP
纬度: -23.4315
经度: -46.4983
州/省: São Paulo
更多关于Flutter机场信息获取插件airport的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html
更多关于Flutter机场信息获取插件airport的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html
在Flutter中,airport
插件是一个用于获取机场信息的工具。它可以帮助你获取机场的详细信息,如机场代码、名称、位置等。以下是如何使用 airport
插件的基本步骤:
1. 添加依赖
首先,你需要在 pubspec.yaml
文件中添加 airport
插件的依赖:
dependencies:
flutter:
sdk: flutter
airport: ^1.0.0 # 请使用最新版本
然后运行 flutter pub get
来安装依赖。
2. 导入插件
在你的 Dart 文件中导入 airport
插件:
import 'package:airport/airport.dart';
3. 使用插件
你可以使用 Airport
类来获取机场信息。以下是一些常见的用法:
获取所有机场信息
void getAllAirports() async {
List<Airport> airports = await Airport.getAllAirports();
for (var airport in airports) {
print('Code: ${airport.code}, Name: ${airport.name}, City: ${airport.city}, Country: ${airport.country}');
}
}
根据机场代码获取机场信息
void getAirportByCode(String code) async {
Airport? airport = await Airport.getAirportByCode(code);
if (airport != null) {
print('Code: ${airport.code}, Name: ${airport.name}, City: ${airport.city}, Country: ${airport.country}');
} else {
print('Airport not found');
}
}
根据城市名称获取机场信息
void getAirportsByCity(String city) async {
List<Airport> airports = await Airport.getAirportsByCity(city);
for (var airport in airports) {
print('Code: ${airport.code}, Name: ${airport.name}, City: ${airport.city}, Country: ${airport.country}');
}
}
4. 示例代码
以下是一个完整的示例代码,展示如何使用 airport
插件获取并显示机场信息:
import 'package:flutter/material.dart';
import 'package:airport/airport.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
[@override](/user/override)
Widget build(BuildContext context) {
return MaterialApp(
home: AirportInfoScreen(),
);
}
}
class AirportInfoScreen extends StatefulWidget {
[@override](/user/override)
_AirportInfoScreenState createState() => _AirportInfoScreenState();
}
class _AirportInfoScreenState extends State<AirportInfoScreen> {
List<Airport> airports = [];
[@override](/user/override)
void initState() {
super.initState();
fetchAirports();
}
void fetchAirports() async {
List<Airport> fetchedAirports = await Airport.getAllAirports();
setState(() {
airports = fetchedAirports;
});
}
[@override](/user/override)
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Airport Information'),
),
body: ListView.builder(
itemCount: airports.length,
itemBuilder: (context, index) {
var airport = airports[index];
return ListTile(
title: Text(airport.name),
subtitle: Text('${airport.city}, ${airport.country}'),
trailing: Text(airport.code),
);
},
),
);
}
}